JP2004192214A - Guarantee term expiration notification system and method and its program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that purchased merchandise such as an electric appliance finally stops operating due to its continuous use although the operating condition is not good, and that a guarantee term has expired several weeks before when the merchandise is brought in for repair, or that the merchandise should be repaired with charge beyond the target of guarantee when the merchandise is brought in to a maker for repair. <P>SOLUTION: This system is provided to preliminarily notify the expiration of free guarantee terms applied to electric appliances, furniture and cars or the like through the Internet, and to offer a charge system required for failure repair after the free guarantee period or new merchandise information. This system provides a service for carrying out repair acceptance and merchandise purchase when a user who has received the above mentioned notification requests repair or wants to purchase new merchandise. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention has a content for collectively managing the warranty expiration date of a purchased product for each customer and each product, and in particular, a product warranty expiration notification system and a notification method for notifying a customer via the Internet that the warranty expiration is approaching. And its programs.
[0002]
[Prior art]
If you continue to use a purchased product such as an electric appliance in poor condition and it finally stops working and send it out for repair, the warranty has expired a few weeks ago or it will not be covered if you take it to the manufacturer for repair Sometimes there is an experience that turns out to be a repair and a paid repair. Further, there is a case where the warranty card itself is lost and repair is required for a fee even within the warranty period.
[0003]
For this reason, Patent Literatures 1 and 2 disclose contents in which information relating to a warranty of a purchased product is collectively managed by a service center or the like on the Internet instead of a customer of the product.
[0004]
[Patent Document 1]
JP-A-2002-108476 (page 3-6, FIG. 1)
[Patent Document 2]
JP-A-2002-109098 (page 4-13, FIG. 1)
[0005]
[Problems to be solved by the invention]
In the above-mentioned Patent Documents 1 and 2, the content of managing the warranty on behalf of the customer is described, but the customer is positively informed that the expiration of the expiration date of the warranty, which is the first problem, is imminent. Has no content to notify.
[0006]
The present invention collectively manages information on the customer's warranty at the service center and periodically notifies the customer's terminal of the period information up to the warranty expiration date, so that the product requiring repair is free of charge. And to provide a product warranty expiration notification system, a notification method, and a program for introducing a new product after the warranty expiration.
[0007]
[Means for Solving the Problems]
The first warranty expiration notification system of the present invention is a sales service that transmits product information including the product type, warranty number, and warranty expiration date of the purchased product and customer information including the customer name of the customer who purchased the product, and performs a registration request. A third computer of the store;
A first computer having a warranty information management center that receives the product information and the customer information from the third computer, stores the product information in a database, and periodically notifies the customer of the number of days until the warranty of the product expires. When,
A second computer possessed by the customer who purchased the product and receiving the notification of the number of days from the first computer;
An Internet connecting the first computer, the second computer, and the third computer;
Is provided.
[0008]
The second warranty expiration notification system of the present invention is a sales system that transmits product information including a product type, a warranty number, and a warranty expiration date of a purchased product and customer information including a customer name of a customer who purchased the product, and performs a registration request. A third computer of the store;
A fourth computer that performs manufacturing of the product and repairs the failure of the product, accepts repair of the failure of the product notified by the customer, transmits a new product introduction information, and requests registration; ,
When the merchandise information and the customer information from the third computer and the new merchandise introduction information from the fourth computer are received, they are respectively registered in a database, and the new merchandise introduction information and the repair of the merchandise are received. A first computer of a warranty information management center for periodically notifying a customer of reception information and the number of days until the expiration of the warranty of the product;
A second method, wherein the first computer has a request for repair of the product or a request for purchase of the new product, based on the notification received from the first computer, which the customer has purchased. Computer and
An Internet connecting the first computer, the second computer, the third computer, and the fourth computer;
Is provided.
[0009]
The third warranty expiration notification system of the present invention is the first or second invention, wherein the first computer uses the product information registered from the third computer as history information of a product purchased by a customer. Storing in the database for each customer.
[0010]
In a fourth warranty expiration notification system of the present invention, in the first, second, or third invention, the first computer reads a plurality of products purchased by a customer within a predetermined period from the history information of the products. The warranty expiration notification system according to claim 1, wherein a combination that is frequently purchased is searched for a registered customer, and a combination that is frequently purchased is stored in the database.
[0011]
A fifth warranty expiration notification system according to the present invention is the first, second, third or fourth invention, wherein the first computer, upon notifying the customer of the warranty expiration, The method includes matching a combination with a high purchase frequency based on a plurality of products, and notifying the customer of new products introduction information on the products if the customer has not purchased the products in the combinations.
[0012]
In a sixth aspect of the present invention, in the second aspect of the present invention, when the first computer receives a product recall notification from the fourth computer, the first computer searches the database for a customer who uses the product. And providing notification of a recall of the product in conjunction with notification of the expiration of the warranty to the searched customer.
[0013]
A seventh warranty expiration notification system of the present invention according to the second or sixth invention, wherein the first computer is configured to perform the notification even to a customer who has purchased a recalled product and whose warranty has expired.
[0014]
An eighth warranty expiration notification system according to the first or second invention, wherein the first computer periodically transmits the notice regarding the expiration of the warranty until the warranty expiration of the product expires. Prepare to do.
[0015]
According to a first warranty expiration notification method of the present invention, there is provided a third computer of a dealer, a first computer of a warranty information management center for storing and managing warranty information of products purchased by customers in a database, A third computer of a customer who has purchased the product, the Internet connecting the first computer, the second computer, and the third computer,
A warranty expiration notification method executed by a warranty expiration notification system comprising:
A first step of transmitting product information including a product type, a warranty number, and a warranty expiration date of a product purchased by the customer and customer information including a customer name from the third computer to the first computer, and performing a registration request; ,
The first computer includes a second step of periodically notifying a second computer of a customer who purchased the product of the number of days until the warranty of the product expires.
[0016]
According to a second method of notifying expiration of warranty of the present invention, a third computer of a store selling goods, a fourth computer of a manufacturer of the goods, and a database of warranty information of the goods purchased by the customer are stored in a database. A first computer of a warranty information management center that stores and manages the third computer, a third computer of a customer who has purchased a product, the first computer, the second computer, the third computer, The Internet connecting the fourth computer;
A warranty expiration notification method executed by a warranty expiration notification system comprising the following steps: transmitting product information including a product type, a warranty number, and a warranty expiration date of a product purchased by a customer and customer information including a customer name from the third computer. A first step of transmitting to the first computer and requesting registration,
A fourth computer of the manufacturer that manufactures the product and repairs the failure, transmitting a new product introduction information to the first computer and requesting registration;
A third step of receiving the registration request in the first step and the second step, and storing the product information, the customer information, and the new product introduction information in a database;
The first computer periodically notifies the second computer of the notification of the new product introduction information, the notification of the acceptance of the repair of the product, and the number of days until the warranty expiration of the product. A fourth step to perform;
The second computer, based on the notification transmitted from the first computer in the fourth step, requests a repair of the product and purchases a new product based on the new product introduction information. Making a request to the first computer;
Is provided.
[0017]
The first warranty expiration notification program of the present invention includes a third computer of a dealer, a first computer of a warranty information management center that stores warranty information of products purchased by customers in a database, and manages the warranty information. A third computer of a customer who has purchased the product, the Internet connecting the first computer, the second computer, and the third computer,
A program to be executed by a computer configuring a warranty expiration notification system including
A first step of transmitting product information including a product type, a warranty number, and a warranty expiration date of a product purchased by the customer and customer information including a customer name from the third computer to the first computer, and performing a registration request; ,
The first computer includes a second step of periodically notifying a second computer of a customer who purchased the product of the number of days until the warranty of the product expires.
[0018]
According to a second method of notifying expiration of warranty of the present invention, a third computer of a store selling goods, a fourth computer of a manufacturer of the goods, and a database of warranty information of the goods purchased by the customer are stored in a database. A first computer of a warranty information management center that stores and manages the third computer, a third computer of a customer who has purchased a product, the first computer, the second computer, the third computer, The Internet connecting the fourth computer;
A program to be executed by a computer configuring a warranty expiration notification system including
A first step of transmitting, from the third computer to the first computer, product information including the product type, warranty number, and warranty expiration date of the product purchased by the customer and the customer information including the customer name, and requesting registration. ,
A fourth computer of the manufacturer that manufactures the product and repairs the failure, transmitting a new product introduction information to the first computer and requesting registration;
A third step of receiving the registration request in the first step and the second step, and storing the product information, the customer information, and the new product introduction information in a database;
The first computer periodically notifies the second computer of the notification of the new product introduction information, the notification of the acceptance of the repair of the product, and the number of days until the warranty expiration of the product. A fourth step to perform;
The second computer, based on the notification transmitted from the first computer in the fourth step, requests a repair of the product and purchases a new product based on the new product introduction information. Making a request to the first computer;
Is provided.
[0019]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, embodiments of the present invention will be described in detail with reference to the drawings.
[0020]
First, the configuration of the present embodiment will be described with reference to FIG.
A sales terminal 10 installed at a store for a customer who has purchased a product to register product information such as a warranty period for the purchased product,
A product information DB system 20 of a warranty information management center having a database for storing product information registered by the sales terminal 10,
A customer terminal 30 such as a personal computer of the customer who receives a notification from the product information DB system 20 that the product warranty purchased by the customer is about to expire;
A maker DB system 40 that receives a request for repair of a product at a maker that manufactures the product;
The Internet 100 that connects the sales terminal 10, the product information DB system 20, the customer terminal 30, and the maker DB system 40 by communication;
It is composed of
[0021]
It should be noted that the sales terminal 10, the customer terminal 30, and the maker DB system 40 may each have a plurality of units.
[0022]
A customer who purchases a product such as a home appliance, a personal computer, or a facsimile uses the sales terminal 10 including a personal computer or the like of the store where the product was purchased to send a product name, a product type, Product information such as product model number, model, manufacturing machine, purchase date, warranty number, e-mail address of the customer, and customer information including the name and address of the customer are registered. The registration of the product information and the customer information is not limited to the customer, and may be performed by a store clerk.
[0023]
The product information DB system 20 includes a computer as a processing device and a product information database 200 that stores product information, customer information, and the like. Send a short notice about the expiration of the warranty and the introduction of a new product related to the product.
[0024]
In the product information database 200, information is managed for each customer, and the customer information and the product information of the products purchased by the customer so far are stored as history information including the products whose warranty has expired.
[0025]
Further, in the product information database 200, introduction information on new products transmitted from the maker DB systems 40 of several manufacturers is registered in a manner classified by product genre and product.
[0026]
If the customer who has received the guidance notification wants to repair the purchased product or obtain detailed information on the new product, the customer returns the request from the customer terminal 30 to the product information DB system 20.
[0027]
For example, when a customer wants to repair a product, the product information DB system 20 receives the failure information on the failure from the customer terminal 30 and transmits the failure information to the maker DB system 40 by e-mail or the like. The maker DB system 40 accepts the failure information, replies the guidance of the repair method by e-mail to the customer terminal 30, and can repair the product.
[0028]
When the introduction information of a new product is desired, the product information DB system 20 returns data of the new product registered in advance by the maker DB system 40 to the customer terminal 30.
[0029]
The merchandise information DB system 20 that manages the warranty period of the merchandise of the customer is executed as a program.
(1) A database registration function for receiving merchandise information and customer information of a purchased merchandise from the sales terminal 10 and registering the merchandise information in the merchandise information database 200, and also accepting introduction information on a new merchandise from the maker DB system 40 and registering the same. (2) a warranty expiration date calculation function for periodically checking the expiration date of the registered product from the product information;
(3) a repair reception processing function for receiving failure information of a failed product from the customer terminal 30;
(4) a product data processing function for receiving a request for introduction of a new product from the customer terminal 30 and responding to the request;
(5) Internet function,
It has.
[0030]
The sales terminals 10 are each executed as a program.
(1) an Internet function of transmitting product information and customer information of the purchased product to the product information DB system 20 via the Internet 100;
(2) a product purchase processing function for performing product purchase processing;
It has.
[0031]
The customer terminals 30 are each executed as a program (1) Internet function,
(2) E-mail function is provided.
[0032]
The maker DB system 40 is executed as a program,
(1) a product data registration function for automatically registering introduction data on a new product in the product information DB system 20;
(2) A failure repair function that accepts repairs for products and estimates at the time of payment,
(3) an Internet function of transmitting relevant information to the customer terminal 30 and the product information DB system 20 via the Internet 100;
It has.
[0033]
Next, the operation of the embodiment of the present invention will be described in detail with reference to FIGS. 1, 2, and 3. FIG.
[0034]
Referring to the flowchart of FIG. 2, when a product such as an electric device is purchased at each store, a customer or a store clerk uses the screen of the sales terminal 10 as illustrated in FIG. The merchandise information and the customer information are input and transmitted to the merchandise information DB system 20 by the Internet function.
[0035]
The product information includes the product name, product type, product model number, model, manufacturing machine, purchase date, warranty number, warranty expiration date, customer e-mail address, etc., and customer information includes name, address, telephone number, e-mail address, customer Contains the e-mail address of the store where the product was purchased. The merchandise information and the customer information are also captured and stored in the sales terminal 10.
[0036]
At this time, the customer can designate a period interval for receiving a notice that the warranty expiration date has expired to the product information DB system 20. For example, every six months or every month.
[0037]
In addition, when the same customer has registered a plurality of product information, if the purchase dates are different, the customer will be informed of the warranty expiration date separately, which is troublesome for the customer. For this reason, it is possible to designate to receive the notification at once by synchronizing with the periodic notification time of the product purchased in the past.
[0038]
The product information DB system 20 registers the product information and the customer information in the product information database 200 by a database registration function (Step 1).
[0039]
If the same customer has already purchased another product and registered the product information in the past, the received customer information is compared with the registered customer information. Is not registered. In this manner, each time a plurality of customers purchase various products, registration is performed in the product information DB system 20 as necessary.
[0040]
The data registered from the sales terminal 10 is checked for each customer and for each product purchased by the customer by the product warranty expiration date calculation function of the product information DB system 20. If it is the day when the expiration notice is given to the customer, the number of days from the notice day to the expiration date of the warranty is calculated on a calendar.
[0041]
At regular intervals (for example, every one month) designated by the customer at the time of registration of the product information, information including a Web address for accepting warranty expiration information and repair and a Web address for new product information are created by e-mail. A screen as illustrated in (b) is transmitted to the customer terminal 30 (step 2).
[0042]
In the notification immediately before the expiration of the warranty expiration, the product information DB system 20 inquires whether a notification of the new product will be continued when a new product is born. When the customer accepts the invitation, when a new product of a related product occurs, the customer is notified of a Web address for introducing the product.
[0043]
At this time, for example, when the customer has specified that a plurality of products have been purchased and the notification has been received synchronously, information on the plurality of purchased products is transmitted together.
[0044]
For example, the product A purchased by the customer is notified by 300 days until the warranty expires, the product B is notified by 200 days, and the Web address of the repair destination when requesting the repair and the new product. Is also notified.
[0045]
When the customer who has received this e-mail wishes to repair the product, the customer accesses the repair receiving Web address received from the customer terminal 30 via the Internet 100 and connects to the repair reception processing function of the product information DB system 20. Failure information such as a warranty number and an error code indicating a failure state is registered on a screen as illustrated in FIG. 3C (step 3).
[0046]
The repair reception processing function of the commodity information DB system 20 that has received the repair determines the maker from the commodity information, and the failure repair function of the maker DB system 40 of the maker via the Internet 100 stores the commodity information including the warranty number and the customer. Information and failure information are transmitted by e-mail (step 4).
[0047]
The maker DB system 40 that has received the repair reception information determines whether the charge is free or paid by referring to the repair method, the warranty number, and the warranty expiration by the failure repair function, and creates information such as an estimated cost at the time of the charge, An e-mail having the contents as illustrated in FIG. 3D is transmitted to the customer terminal 30 to notify the customer of the acceptance of the repair (step 5).
[0048]
When the customer desires to browse for a new product, the user accesses a Web address for introducing the received new product, the product data processing function of the product information DB system 20 operates, and an example is shown in FIG. Such a product genre list screen is displayed. When a product genre desired to be purchased is selected from the list of product genres displayed on this screen and transmitted, a list of products belonging to the next selected genre is displayed as shown in FIG. In this case, the home appliance is selected as the genre.
[0049]
From there, select TV as a product. Then, a list of only TV products as illustrated in (g) of FIG. 3 is displayed, so that it is possible to browse the detailed information of the target product or request the purchase of the product to the product information DB system 20 (step). 6).
[0050]
When the product purchase information is notified, the product data processing function of the product information DB system 20 transmits the purchase information to the product purchase processing function of the sales terminal 10 of the store where the customer previously purchased the product (step 7). .
[0051]
The sales terminal 10 that has received the product purchase information notifies the customer via the Internet 100 that the purchase process has been accepted by the product purchase processing function. The content of this notification is as illustrated in FIG. 3 (h), and includes a product name and a price, which are transmitted to the customer terminal 30 by e-mail. The customer who has received this notification sends a response to the consent to the customer terminal 10, so that the customer can purchase the product (step 8).
[0052]
The database registration function of the merchandise information DB system 20 sets a Web address for the new merchandise and automatically registers the merchandise information in the merchandise information database 200 when the merchandise DB system 40 receives the introduction information about the new merchandise from the merchandise data registration section of the maker DB system 40. Is performed (step 9).
[0053]
Further, the product information DB system 20 stores all combinations of products purchased by one customer continuously or at one time in a certain period (for example, one year or six months) based on the product information database 200. The customers are examined, and those having a high combination frequency are recorded in the product information database 200.
[0054]
For example, a combination of a personal computer, a digital camera and a printer is frequently purchased in a short period of time. In this case, if a customer has purchased a personal computer and a digital camera in the past, if there is a newly sold printer, the Web address introducing the printer is also stored in the customer terminal 10 together with information on the number of days until the warranty expires. They also notify you.
[0055]
Further, at the manufacturer, when a defect is found in a part or the like of a product manufactured by the manufacturer and a recall for replacement occurs, the manufacturer DB system 40 of the manufacturer transmits recall information of the product to the product information DB system 20. I do.
[0056]
The product information DB system 20 that receives the request searches for the customer who has purchased the product from the product information in the product information database 200 and obtains the customer with high urgency according to the urgency of the customer. Immediately notifies non-urgent items by e-mail along with the notification of expiration of the warranty. In this recall process, the product information DB system 20 also notifies a customer whose product free warranty has expired.
[0057]
【The invention's effect】
The first effect is that the expiration of the warranty can be checked in advance without checking the warranty of the product. As a result, there is an advantage that a product that has been out of order for a long time is no longer repaired for a fee, and that services during the warranty period cannot be received due to loss of the warranty.
[0058]
In addition, there is an advantage that the dealer or the manufacturer who purchased the product can receive the repair regardless of the repair request.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of an embodiment of the present invention.
FIG. 2 is a flowchart illustrating an operation of the exemplary embodiment of the present invention.
FIG. 3 is a screen image illustrating an operation of the exemplary embodiment of the present invention.
[Explanation of symbols]
10 Sales Terminal 20 Product Information DB System 200 Product Information Database 30 Customer Terminal 40 Maker DB System 100 Internet

Claims (12)

A third computer having a store that sends a product request including a product type of the purchased product, a warranty number, a warranty expiration date, and customer information including a customer name of a customer who purchased the product and performs a registration request;
A first computer having a warranty information management center that receives the product information and the customer information from the third computer, stores the product information in a database, and periodically notifies the customer of the number of days until the warranty of the product expires. When,
A second computer possessed by the customer who purchased the product and receiving the notification of the number of days from the first computer;
An Internet connecting the first computer, the second computer, and the third computer;
Warranty expiration notification system. A third computer having a store that sends a product request including a product type of the purchased product, a warranty number, a warranty expiration date, and customer information including a customer name of a customer who purchased the product and performs a registration request;
A fourth computer that performs manufacturing of the product and repairs the failure of the product, accepts repair of the failure of the product notified by the customer, transmits a new product introduction information, and requests registration; ,
When the merchandise information and the customer information from the third computer and the new merchandise introduction information from the fourth computer are received, they are respectively registered in a database, and the new merchandise introduction information and the repair of the merchandise are received. A first computer of a warranty information management center for periodically notifying a customer of reception information and the number of days until the expiration of the warranty of the product;
A second method, wherein the first computer has a request for repair of the product or a request for purchase of the new product, based on the notification received from the first computer, which the customer has purchased. Computer and
An Internet connecting the first computer, the second computer, the third computer, and the fourth computer;
A warranty expiration notification system, comprising: 3. The guarantee according to claim 1, wherein the first computer stores the merchandise information registered from the third computer as history information of merchandise purchased by the customer in the database for each customer. Expiration notification system. The first computer obtains a combination of a plurality of products purchased by the customer within a certain period from the history information of the product, checks a combination with a high purchase frequency for the registered customers, and determines a combination of the purchase with a high purchase frequency. The warranty expiration notification system according to claim 1, wherein the combination is stored in the database. When notifying the customer of the expiration of the warranty, the first computer checks the combination with the frequently purchased combination based on one or a plurality of products purchased by the customer, and in the combination, the customer has not purchased yet. 5. The warranty expiration notification system according to claim 1, wherein when there is a product, the new product introduction information about the product is also notified. When the first computer receives the product recall notification from the fourth computer, the first computer searches the database for a customer who uses the product, and the recall of the product is performed at the same time as the notification regarding the warranty expiration to the searched customer. The warranty expiration notification system according to claim 2, wherein the notification is performed. 7. The warranty expiration notification system according to claim 2, wherein the first computer also notifies the customer who purchased the recalled product and the warranty has expired. 3. The warranty expiration notification system according to claim 1, wherein the first computer periodically notifies the second computer of the expiration of the warranty until the warranty of the product expires. A third computer of a dealer, a first computer of a warranty information management center for storing and managing warranty information of products purchased by customers in a database, and a third computer of a customer who purchased products. The Internet connecting the first computer, the second computer, and the third computer;
A warranty expiration notification method executed by a warranty expiration notification system comprising:
A first step of transmitting product information including a product type, a warranty number, and a warranty expiration date of a product purchased by the customer and customer information including a customer name from the third computer to the first computer, and performing a registration request; ,
A second step of periodically notifying a second computer of the customer who purchased the product of the number of days until the warranty of the product expires, the first computer comprising: Notification method. A third computer of a store selling the product, a fourth computer of a manufacturer of the product, and a warranty information management center for storing and managing warranty information of the product purchased by the customer in a database. A first computer, a third computer of a customer who has purchased the product, the Internet connecting the first computer, the second computer, the third computer, and the fourth computer,
A warranty expiration notification method executed by a warranty expiration notification system comprising the following steps: transmitting product information including a product type, a warranty number, and a warranty expiration date of a product purchased by a customer and customer information including a customer name from the third computer. A first step of transmitting to the first computer and requesting registration,
A fourth computer of the manufacturer that manufactures the product and repairs the failure, transmitting a new product introduction information to the first computer and requesting registration;
A third step of receiving the registration request in the first step and the second step, and storing the product information, the customer information, and the new product introduction information in a database;
The first computer periodically notifies the second computer of the notification of the new product introduction information, the notification of the acceptance of the repair of the product, and the number of days until the warranty expiration of the product. A fourth step to perform;
The second computer, based on the notification transmitted from the first computer in the fourth step, requests a repair of the product and purchases a new product based on the new product introduction information. Making a request to the first computer;
A warranty expiration notification method, comprising: A third computer of a dealer, a first computer of a warranty information management center for storing and managing warranty information of products purchased by customers in a database, and a third computer of a customer who purchased products. The Internet connecting the first computer, the second computer, and the third computer;
A program to be executed by a computer configuring a warranty expiration notification system including
A first step of transmitting product information including a product type, a warranty number, and a warranty expiration date of a product purchased by the customer and customer information including a customer name from the third computer to the first computer, and performing a registration request; ,
A second step of periodically notifying a second computer of the customer who purchased the product of the number of days until the warranty of the product expires, the first computer comprising: Notification program. A third computer of a store selling the product, a fourth computer of a manufacturer of the product, and a warranty information management center for storing and managing warranty information of the product purchased by the customer in a database. A first computer, a third computer of a customer who has purchased the product, the Internet connecting the first computer, the second computer, the third computer, and the fourth computer,
A program to be executed by a computer configuring a warranty expiration notification system including
A first step of transmitting, from the third computer to the first computer, product information including the product type, warranty number, and warranty expiration date of the product purchased by the customer and the customer information including the customer name, and requesting registration. ,
A fourth computer of the manufacturer that manufactures the product and repairs the failure, transmitting a new product introduction information to the first computer and requesting registration;
A third step of receiving the registration request in the first step and the second step, and storing the product information, the customer information, and the new product introduction information in a database;
The first computer periodically notifies the second computer of the notification of the new product introduction information, the notification of the acceptance of the repair of the product, and the number of days until the warranty expiration of the product. A fourth step to perform;
The second computer, based on the notification transmitted from the first computer in the fourth step, requests a repair of the product and purchases a new product based on the new product introduction information. Making a request to the first computer;
A warranty expiration notification program characterized by comprising:

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