CN1289858C - Heating cooker - Google Patents
Heating cooker Download PDFInfo
- Publication number
- CN1289858C CN1289858C CNB001313894A CN00131389A CN1289858C CN 1289858 C CN1289858 C CN 1289858C CN B001313894 A CNB001313894 A CN B001313894A CN 00131389 A CN00131389 A CN 00131389A CN 1289858 C CN1289858 C CN 1289858C
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- China
- Prior art keywords
- temperature
- sensor
- mentioned
- infrared
- determination data
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- Expired - Fee Related
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-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/642—Cooling of the microwave components and related air circulation systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/08—Arrangement or mounting of control or safety devices
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electric Ovens (AREA)
- Electric Stoves And Ranges (AREA)
- Control Of High-Frequency Heating Circuits (AREA)
- Radiation Pyrometers (AREA)
Abstract
An infrared ray temperature sensor has an infrared ray sensor element for measuring a temperature of a heated item and a sensor temperature- measuring element for use in measuring a temperature of the infrared ray temperature sensor itself. A control part discriminates a temperature of an item to be cooked in response to a measured data measured by the infrared ray sensor element and anther measured data measured by a sensor temperature- measuring element. In addition, the control part utilizes the measurement data (a temperature of the sensor) measured by the sensor temperature), discriminates whether or not the infrared rays temperature sensor is abnormal (S1 to S4) and at the same time it controls to protect the infrared ray temperature sensor (S5, S6). The measured data measured by the sensor temperature-measuring element is utilized to enable the infrared ray temperature sensor to be protected, resulting in that its cost is not increased and the infrared ray temperature sensor can be used.
Description
Technical field
The present invention is relevant with the heating device by the temperature of gratin that is placed in the heating clamber with infrared temperature sensor mensuration.
Background technology
In the prior art, at heating device for example in the micro-wave oven, as mensuration be placed in the heating clamber by the temperature measuring device of the temperature of gratin, what use is infrared temperature sensor, and this infrared temperature sensor is arranged on the sidewall or ceiling wall of heating clamber, try to achieve by the temperature of gratin according to the determination data of this infrared temperature sensor, control cooking thus.
But, in the occasion of using infrared temperature sensor, because this infrared temperature sensor is an electronic component, its serviceability temperature scope has qualification, in the prior art, in order to make its temperature in its serviceability temperature scope, and the cooling body that will be used to cool off infrared temperature sensor designs very fully.The cost of product is improved.
Summary of the invention
The present invention be directed to above-mentioned situation and develop, its objective is provides the heating device that a kind of cost is not high, can use infrared temperature sensor well.
The invention of the 1st aspect, possesses heating clamber and to being housed in the heater block that is heated by gratin in the above-mentioned heating clamber, it is characterized in that also possessing: be provided with the infrared temperature sensor of mensuration from the sensor temperature components of assays of the temperature that is placed on ultrared infrared ray sensor element that is radiated out by gratin in the heating clamber and mensuration itself; According to the infrared ray determination data that utilizes above-mentioned infrared ray sensor element to obtain and the sensor temperature determination data judgement that utilizes the sensor temperature components of assays to obtain above-mentioned by the gratin temperature by gratin temperature judging part; And heater block controlled so that the sensor temperature determination data that utilizes the sensor temperature measurement component to obtain is no more than the control assembly of the assurance ceiling temperature of above-mentioned infrared temperature sensor.
Above-mentioned infrared temperature sensor is provided with and utilizes infrared ray to measure by the sensor temperature components of assays of the temperature of the infrared ray sensor element of the temperature of gratin and energy mensuration itself.And with the data that its sensor temperature components of assays is measured, decapacitation is judged by outside the temperature of gratin; for example, as the given invention in the 1st aspect, can be used to protect infrared ray sensor; therefore, not only cost is not high, and can use infrared temperature sensor well.
The invention of the 2nd aspect, it is characterized in that, also possess Machine Room and cooling fan, above-mentioned infrared temperature sensor is set in above-mentioned Machine Room, and above-mentioned control assembly is also controlled the operation of cooling fan so that the sensor temperature determination data that utilizes described sensor temperature components of assays to obtain is no more than the assurance ceiling temperature of described infrared temperature sensor.
For example, when the determination data of sensor temperature components of assays reaches the design temperature of regulation in advance, make cold moving fan entry into service, thereby can make infrared temperature sensor obtain cooling.
The invention of the 3rd aspect is characterized in that, above-mentioned control assembly is also controlled above-mentioned heater block so that the sensor temperature determination data that utilizes the sensor temperature measurement component to obtain is no more than the assurance ceiling temperature of above-mentioned infrared temperature sensor.
When by heater block heating by the heating-up temperature of gratin when high, the temperature of infrared temperature sensor also uprises.Therefore, for example, when the determination data of sensor temperature components of assays arrived the design temperature predesignate, the temperature that makes heater block by control was to decline, so the temperature that can suppress infrared temperature sensor rises.
The invention of the 4th aspect, it is characterized in that, also be provided with the temperature inside the box sensor of measuring above-mentioned heating indoor temperature, whether unusual above-mentioned control assembly has according to the temperature inside the box determination data that utilizes above-mentioned the temperature inside the box sensor to obtain controls above-mentioned heater block, simultaneously the sensor of judging at least one side in above-mentioned infrared temperature sensor and the above-mentioned the temperature inside the box sensor according to the sensor temperature determination data that utilizes the sensor temperature measurement component to obtain and above-mentioned the temperature inside the box determination data function.
During with the heater cooking, when the temperature in the heating clamber rises, influenced by it, the temperature of infrared temperature sensor also rises, so be dependency relation by the determination data of sensor temperature components of assays mensuration and the determination data of being measured by the temperature inside the box sensor.Therefore, relatively the determination data of sensor temperature components of assays and the determination data of the temperature inside the box sensor when the relative the opposing party of a side differs greatly value, can be judged at least one side's sensor abnormality.
The invention of the 5th aspect, it is characterized in that, when above-mentioned control assembly reaches the assurance ceiling temperature of the infrared temperature sensor of predesignating at the sensor temperature determination data that utilizes the sensor temperature measurement component to obtain, judge that infrared temperature sensor is unusual.
Therefore, can judge according to the determination data of the temperature measurement component of sensor whether infrared temperature sensor is unusual.
The invention of the 6th aspect is characterized in that, above-mentioned control assembly detect utilize sensor temperature determination data that the sensor temperature measurement component obtains through the time change and when this determination data sharply changes, judge that above-mentioned infrared temperature sensor is unusual.
Therefore, change according to time of the determination data of sensor temperature components of assays, can judge whether infrared temperature sensor is unusual.
The invention of the 7th aspect is characterized in that, above-mentioned control assembly end by the cooking of gratin, and it is unusual to report above-mentioned infrared temperature sensor when judging that above-mentioned infrared temperature sensor is unusual.
Therefore, take place when unusual, because of ending the cooking, so can improve peaceful entirely, again since the energy display abnormality take place unusually so the user is known.
Description of drawings
Fig. 1 is one embodiment of the present of invention, is the flow diagram of the control content of expression control part;
Fig. 2 is the stereoscopic figure of an open mode;
Fig. 3 is the electric control graph of a relation;
Fig. 4 is the principle pie graph of infrared temperature sensor;
Fig. 5 is the temperature measuring areal map of infrared temperature sensor;
The temperature inside the box when Fig. 6 is the heater cooking and the temperature variation of infrared temperature sensor;
Fig. 7 is the figure that carries out the temperature inside the box sensor and infrared temperature sensor abnormality juding.
The specific embodiment
Below, accompanying drawings the present invention is applicable to an embodiment with the micro-wave oven of baking box function.
At first, referring to Fig. 2 and Fig. 3, as the micro-wave oven body 1 of heating device is in the inside that transverse direction forms the outer container 2 of long rectangular box shape the interior case 3 of the rectangular box shape that forms front openings to be set and to constitute, with the inside of interior case 3 as heating clamber 4, and with the spatial portion of the left side side of interior case 3 as Machine Room 5.The door 6 of the front openings portion that is used for switch heating clamber 4 that can rotate up and down is set in the front of body 1, the operation panel 7 of the front portion that is positioned at Machine Room 5 also is set simultaneously.A plurality of switches 8 and display part 9 are set on operation panel 7.
On the bottom in above-mentioned heating clamber 4, the turntable 11 that is driven by 10 rotations of turntable drive motors is set, on this turntable 11, places and to put the rotating disc 12 that also can take off.In above-mentioned case 3 about sidewall, be provided for supporting the support 3a (see figure 2) of the culinary rectangular disk (not shown) of baking.At the sidewall of the Machine Room of interior case 35 sides, be provided with to heating clamber 4 supply microwaves and to being placed on the magnetron 13 of the formation heater block that is heated by gratin in the heating clamber 4.At the ceiling of interior case 3, the culinary heater 14 of baking is set, constitute heater block by it.And,, be provided for measuring the temperature inside the box sensor 15 of the temperature in the heating clamber 4 at the ceiling of interior case 3.This temperature inside the box sensor 15 for example, is made of thermistor.
Top at the sidewall of the Machine Room of interior case 35 sides is provided with infrared temperature sensor 16.This infrared temperature sensor 16, as shown in Figure 4, in shell 17, have wiring substrate 18,8 infrared ray sensor elements 19 that are made of thermoelectric element on this wiring substrate 18 are set, be arranged on being used on this wiring substrate 18 measure this infrared temperature sensor 16 itself temperature be arranged to the lens 21 of picture usefulness simultaneously in the front of shell 17 as the sensor temperature measuring element 20 of sensor temperature components of assays.
At this moment, infrared temperature sensor 16 is that 8 infrared ray sensor elements 19 are arranged on the row straight line, constitute as linear sensor, these 8 infrared ray sensor elements 19 as shown in Figure 5, constitute the temperature that can measure the radius centered scope that comprises rotating disc 12, this radius is divided into 8 regional 19a.Which therefore, utilize to make turntable 11 rotations, no matter will can both be measured its temperature by the position that gratin A is placed on the rotating disc 12.
In above-mentioned Machine Room 5, cooling fan 22 as shown in Figure 3 is set, when these cooling fan 22 rotations, just can cool off being configured in interior above-mentioned magnetron 13 in mechanism chamber 5 and infrared ray sensor 16 etc.And, in the inboard of aforesaid operations plate 7, band control of microcomputer portion 23 is set.This control part 23 is made of by gratin temperature judging part and control assembly of the present invention.In this control part 23, input is from each signal that is arranged on switch 8, the temperature inside the box sensor 15 and infrared temperature sensor 16 on the operation panel 7.This occasion, each signal of 8 infrared ray sensor elements 19 of infrared temperature sensor 16 and the signal of 1 sensor temperature measuring element 20 are transported in the control part 23 successively by 1 holding wire.
And above-mentioned control part 23 has the function according to each signal of switch 8, the temperature inside the box sensor 15 and infrared temperature sensor 16 and preset program control display part 9, turntable drive motors 10, magnetron 13, heater 14 and cooling fan 22.
In said structure, to carry out when microwave cooked, its operating process is to be placed on the rotating disc 12 by gratin, closes door 6, presses switch 8 again and carries out microwave cooked.Then, control part 23 makes 10 rotations of turntable drive motors, makes magnetron 13 oscillation actions simultaneously.Corresponding therewith, the limit makes and is placed on being rotated by gratin on the rotating disc 12, and cooking has been carried out by microwave in the limit.At this moment, by infrared temperature sensor 16 measure be placed on the rotating disc 12 by the temperature of gratin, control part 23 judges by the temperature of gratin according to this determination data, control part 23 is again according to the Data Control magnetron 13 of this judgement.
Below, illustrate and utilize 16 pairs of infrared temperature sensors by the temperature measuring of gratin.
When toasting the cooking, will be placed on the rectangular disk of not representing in the drawings in addition, again this rectangle will be placed on the support 3a in the heating clamber 4, close door 6, and press switch 8 and toast the cooking by gratin.Then, control part 23 makes heater 14 heating powers, by 14 pairs of this heaters by the gratin cooking.At this moment, measure temperature in the heating clambers 4 by the temperature inside the box sensor 15, according to this determination data, the temperature during control part 23 is judged in the hot cell 4, again according to the data of this judgement, control part 23 control heaters 14.
Occasion toasting the cooking like this becomes high temperature (as 250 ℃) in the heating clamber 4, simultaneously, the temperature of the infrared temperature sensor 16 of the sidewall of Machine Room 5 sides of case 3 also rises in being arranged on.Serviceability temperature scope as the infrared temperature sensor 16 of electronic product has regulation, has surpassed the temperature of regulation, will produce fault.
In Fig. 6, the variations in temperature of the temperature inside the box (temperature in the heating clamber 4) and above-mentioned infrared temperature sensor 16 when having represented the baking cooking.In this Fig. 6, control part 23 carries out temperature control when the temperature inside the box begins to become 250 ℃.This occasion, heating along with heater 14, the temperature of the infrared temperature sensor 16 in being arranged on the sidewall of Machine Room 5 sides of case 3 also rises, if control same as before, just has the danger above 90 ℃ of the assurance ceiling temperatures of infrared temperature sensor 16.Therefore, in the present embodiment, control part 23 when the baking cooking, in the cycle of regulation, is implemented the sensor protection of Fig. 1 and the program of abnormality juding.
In this program, at first, at step S1, whether the determination data (sensor temperature) of the sensor self-temperature of the sensor temperature measuring element 20 of judgement infrared temperature sensor 16 is bigger than 85 ℃ of the abnormality juding temperature of predesignating, if the sensor temperature of sensor temperature measuring element 20 just enters step S2 according to " No " below 85 ℃.At step S2, the time of the sensor temperature of detecting sensor temperature measuring element 20 changes, judges whether change more than 30 ℃ in 5 seconds.When changing 5 seconds of sensor temperature, just enter step S3 according to " No " less than 30 ℃.
At step S3, whether the sensor temperature of determine sensor temperature measuring element 20 is than (the temperature inside the box of surveying of the temperature inside the box sensor 15 * 0.3+20) is ℃ big, if little, just enters step S4 according to " No ".At step S4, whether the sensor temperature of determine sensor temperature measuring element 20 is than (the temperature inside the box of measuring of the temperature inside the box sensor 15 * 0.25-20) is ℃ little, if little, just enters step S5 according to " No ".
This situation, sensor temperature measuring element 20 and the temperature inside the box sensor 15 all are to be under the normal situation, and as shown in Figure 7, the determination data of these sensor temperature measuring elements 20 and the temperature inside the box sensor 15 is dependency relation.If in the scope that the oblique line of Fig. 7 is represented, then determine sensor temperature measuring element 20 and the temperature inside the box sensor 15 all are in normal condition, if outside scope, judge which sensor is undesired.
At step S5, whether the sensor temperature of determine sensor temperature measuring element 20 is bigger than 70 ℃ of the design temperatures of predesignating.If the sensor temperature of sensor temperature measuring element 20 is below 70 ℃, just enter step S1 according to " No ", when judging than 70 ℃ big, just enter step S6 according to " YES ", at this moment make cooling fan 22 rotations, send modification of orders control temperature simultaneously, so that the control temperature of the temperature inside the box is dropped to 200 ℃ from 250 ℃.
Utilization rotates cooling fan to cool off infrared temperature sensor 16, and the control temperature of the temperature inside the box dropped to 200 ℃ from 250 ℃, this temperature that has just suppressed infrared temperature sensor 16 rises, the result as shown in Figure 6, the temperature of red line temperature sensor 16 descends, thereby can prevent that it from surpassing the temperature of regulation.
When the sensor temperature of step S1 sensor temperature measuring element 20 surpasses 85 ℃ of abnormality juding temperature (" YES "), at step S2.The sensor temperature of sensor temperature measuring element 20 through 5 seconds change (" YES ") more than 30 ℃, the sensor temperature of step S3 determine sensor temperature measuring element 20 than (the temperature inside the box of the temperature inside the box sensor 15 * 0.3+20) ℃ greatly the time (" YES ") or at the sensor temperature of step S4 determine sensor temperature measuring element 20 than (the temperature inside the box of the temperature inside the box sensor 15 * 0.25-20) ℃ hour (" YES "), all enter step S7 and send instruction termination heating, and show sensor abnormalities at display part 9 at step S8.
In the above-described embodiment, can obtain following such effect.
At first; in the heating device that is provided with infrared temperature sensor 16; make the determination data (sensor temperature) of the sensor temperature measuring element 20 of measuring infrared temperature sensor 16 self-temperatures have the purposes that to judge by beyond the purposes of gratin temperature; also can make cooling fan 22 rotations in this occasion; thereby the control temperature in the case is changed, so just can protect red line temperature sensor 16.Therefore; utilize the determination data (sensor temperature) of sensor temperature measuring element 20 can protect infrared temperature sensor 16; this with for the temperature that makes infrared temperature sensor in its serviceability temperature scope; and the cooling body that will be used to cool off infrared temperature sensor designs to such an extent that situation is opposite very completely; not only cost is not high, and can use infrared temperature sensor 16 well in the serviceability temperature scope.
During with the heater 14 baking cookings, by the determination data (the temperature inside the box) that determination data (sensor temperature) and the temperature inside the box sensor of comparison sensor temperature measuring element 20 are measured temperature in the heating clamber 4, can judge whether the sensor of at least one side in infrared temperature sensor 16 and the temperature inside the box sensor 15 is unusual.
Whether the determination data (sensor temperature) by determine sensor temperature measuring element 20 reaches the abnormality juding temperature of predesignating (85 ℃), can judge whether infrared temperature sensor 16 is unusual.
Pined for by adding of gratin, the side wall temperatures of heating clamber 4 also rises, the temperature of infrared temperature sensor 16 also rises, behind the end of cooking, just cool down in the case, and at this moment the temperature of infrared temperature sensor 16 also slowly descends., when infrared ray temperature sensor 16 produces faults, during temperature that can not mensuration itself, the possibility that the preceding data of fault become exceptional value is very high.Therefore, if the time of the determination data (sensor temperature) of test sensors temperature measuring element 20 changes, because of determination data when breaking down rapid variation must take place, so the time according to its determination data changes, and can judge also whether infrared temperature sensor 16 is unusual.
And, when judging that infrared temperature sensor 16 or the temperature inside the box sensor 15 be whether unusual,, security is improved, and be unusual by report by ending the cooking, just can allow the user know and take place unusually.
From above explanation as can be known; adopt the present invention; because having possessed to have, heating device utilize infrared ray to measure by the infrared temperature sensor of the infrared ray sensor element of gratin temperature with the sensor temperature components of assays of the temperature that mensuration itself is arranged; so data with this sensor temperature components of assays; can be used to judge purposes by beyond the purposes of gratin temperature; for example be used to protect the purposes of infrared temperature sensor; and cost is not high, can use infrared temperature sensor well.
In addition, according to the determination data of sensor temperature components of assays, can judge the unusual of infrared temperature sensor.
Claims (7)
1. heating device possesses heating clamber and to being housed in the heater block that is heated by gratin in the above-mentioned heating clamber, it is characterized in that above-mentioned heating device also possesses:
Be provided with the infrared temperature sensor of mensuration from the sensor temperature components of assays of the temperature that is placed on ultrared infrared ray sensor element that is radiated out by gratin in the heating clamber and mensuration itself;
According to the infrared ray determination data that utilizes above-mentioned infrared ray sensor element to obtain and the sensor temperature determination data judgement that utilizes the sensor temperature components of assays to obtain above-mentioned by the gratin temperature by gratin temperature judging part; And
Heater block is controlled so that the sensor temperature determination data that utilizes the sensor temperature measurement component to obtain is no more than the control assembly of the assurance ceiling temperature of above-mentioned infrared temperature sensor.
2. according to the heating device of claim 1, it is characterized in that,
Above-mentioned heating device also possesses Machine Room and cooling fan,
Above-mentioned infrared temperature sensor is set in above-mentioned Machine Room,
Above-mentioned control assembly is also controlled the operation of cooling fan so that the sensor temperature determination data that utilizes described sensor temperature components of assays to obtain is no more than the assurance ceiling temperature of described infrared temperature sensor.
3. according to the heating device of claim 1, it is characterized in that,
Above-mentioned control assembly is also controlled above-mentioned heater block so that the sensor temperature determination data that utilizes the sensor temperature measurement component to obtain is no more than the assurance ceiling temperature of above-mentioned infrared temperature sensor.
4. according to the heating device of claim 1, its thing is levied and is,
Above-mentioned heating device also is provided with the temperature inside the box sensor of measuring above-mentioned heating indoor temperature,
Whether unusual above-mentioned control assembly has according to the temperature inside the box determination data that utilizes above-mentioned the temperature inside the box sensor to obtain controls above-mentioned heater block, simultaneously the sensor of judging at least one side in above-mentioned infrared temperature sensor and the above-mentioned the temperature inside the box sensor according to the sensor temperature determination data that utilizes the sensor temperature measurement component to obtain and above-mentioned the temperature inside the box determination data function.
5. according to the heating device of claim 1, it is characterized in that,
When above-mentioned control assembly reaches the assurance ceiling temperature of the infrared temperature sensor of predesignating at the sensor temperature determination data that utilizes the sensor temperature measurement component to obtain, judge that infrared temperature sensor is unusual.
6. according to the heating device of claim 1, it is characterized in that,
Above-mentioned control assembly detect utilize sensor temperature determination data that the sensor temperature measurement component obtains through the time change and when this determination data sharply changes, judge that above-mentioned infrared temperature sensor is unusual.
7. according to heating device any in the claim 4,5,6, it is characterized in that,
Above-mentioned control assembly end by the cooking of gratin, and it is unusual to report above-mentioned infrared temperature sensor when judging that above-mentioned infrared temperature sensor is unusual.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP116460/2000 | 2000-04-18 | ||
| JP2000116460A JP3766255B2 (en) | 2000-04-18 | 2000-04-18 | Cooker |
| JP116460/00 | 2000-04-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1318711A CN1318711A (en) | 2001-10-24 |
| CN1289858C true CN1289858C (en) | 2006-12-13 |
Family
ID=18627922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001313894A Expired - Fee Related CN1289858C (en) | 2000-04-18 | 2000-09-13 | Heating cooker |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1148763A2 (en) |
| JP (1) | JP3766255B2 (en) |
| KR (1) | KR20010096481A (en) |
| CN (1) | CN1289858C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2003201758A1 (en) * | 2002-03-12 | 2003-09-22 | Matsushita Electric Industrial Co., Ltd. | High-frequency heating apparatus and control method thereof |
| JP4492135B2 (en) * | 2004-01-28 | 2010-06-30 | パナソニック株式会社 | Induction heating cooker |
| JP4735276B2 (en) * | 2006-01-17 | 2011-07-27 | パナソニック株式会社 | High frequency heating device |
| JP4809135B2 (en) * | 2006-06-09 | 2011-11-09 | 三菱電機株式会社 | Cooker |
| JP6488247B2 (en) * | 2016-03-04 | 2019-03-20 | 日立アプライアンス株式会社 | Cooker |
| WO2019086743A2 (en) * | 2017-11-06 | 2019-05-09 | Paellas Alta Precision, S.L. | Food cooking unit |
| CN108180517B (en) * | 2017-12-27 | 2019-12-17 | 广东美的厨房电器制造有限公司 | Heating cooking device |
-
2000
- 2000-04-18 JP JP2000116460A patent/JP3766255B2/en not_active Expired - Fee Related
- 2000-09-13 CN CNB001313894A patent/CN1289858C/en not_active Expired - Fee Related
- 2000-09-25 KR KR1020000056089A patent/KR20010096481A/en active Search and Examination
-
2001
- 2001-04-12 EP EP01303471A patent/EP1148763A2/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| CN1318711A (en) | 2001-10-24 |
| JP3766255B2 (en) | 2006-04-12 |
| KR20010096481A (en) | 2001-11-07 |
| JP2001304568A (en) | 2001-10-31 |
| EP1148763A2 (en) | 2001-10-24 |
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