CN111897438A - Automatic pressure control heating keyboard device - Google Patents
Automatic pressure control heating keyboard device Download PDFInfo
- Publication number
- CN111897438A CN111897438A CN202010720475.3A CN202010720475A CN111897438A CN 111897438 A CN111897438 A CN 111897438A CN 202010720475 A CN202010720475 A CN 202010720475A CN 111897438 A CN111897438 A CN 111897438A
- Authority
- CN
- China
- Prior art keywords
- air
- keyboard
- telescopic
- module
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
- G06F3/0202—Constructional details or processes of manufacture of the input device
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D15/00—Other domestic- or space-heating systems
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Human Computer Interaction (AREA)
- General Physics & Mathematics (AREA)
- Input From Keyboards Or The Like (AREA)
- Push-Button Switches (AREA)
Abstract
The invention provides an automatic pressure control heating keyboard device, which comprises an air inlet module, a keyboard module and a pressing module, wherein the keyboard module is arranged on the keyboard module; the air inlet module comprises an air valve, a one-way valve and an air inlet pipeline; the keyboard module comprises an air storage cushion; the pressing module comprises a telescopic gas column, a gas pressure plate and an adjusting membrane; the automatic pressure control heating keyboard device supplies heat to a user by transferring heat in a computer case to the fingers of the user; simultaneously at the initial time, can reduce the resilience dynamics of keyboard automatically for the user also can be easy use keyboard when the finger is stiff, and after the temperature risees gradually, improve the resilience dynamics of keyboard gradually, provide higher resilience feedback for the user, improve keyboard availability factor's device.
Description
Technical Field
The invention relates to the field of energy conservation and environmental protection, in particular to an automatic heating keyboard.
Background
The keyboard is a command and data input device for operating equipment, and also refers to a group of function keys arranged to operate a machine or equipment through the system; when a user uses the keyboard in an environment with lower somatosensory temperature, the user can be too labored to press the keys due to the stiff fingers, so that the key pressing efficiency of the user is lower, and the key pressing error rate is increased; in addition, because the keys of the keyboard are usually provided with certain resilience force in order to improve the pressing touch feeling of the user, when the fingers of the user are in a rigid state, the resistance of the keys can increase the pressing difficulty of the user on the contrary, the speed of using the keyboard by the user can be influenced, and the use efficiency is greatly reduced; most of rebounds of the traditional keyboard trigger rebounding reset operation through a spring structure, although the design can assist a user in pressing the keyboard, the elastic value of the spring is not suitable for all conditions; when the keyboard is in a low-temperature environment, the pressing force of the fingers is weak, so that the pressing feeling is large, the fingers can be quickly fatigued, and the use efficiency of the keyboard is reduced; after the fingers are adapted, the sensed press resilience strength is gradually reduced, and the press feedback of the keyboard is reduced due to the excessively small press feeling, so that the operation accuracy of a user is influenced; in summary, there are drawbacks.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide an automatic pressure-controlling heating keyboard device, which supplies heat by transferring heat in a computer case to fingers of a user; simultaneously at the initial time, can reduce the resilience dynamics of keyboard automatically for the user also can be easy use keyboard when the finger is stiff, and after the temperature risees gradually, improve the resilience dynamics of keyboard gradually, provide higher resilience feedback for the user, improve keyboard availability factor.
The technical scheme adopted by the invention for solving the technical problem is as follows: the automatic pressure control heating keyboard device comprises an air inlet module, a keyboard module and a pressing module; the air inlet module comprises an air valve, fan blades driven by a motor are arranged in the air valve, an air inlet and an air outlet are arranged on the air valve, and a one-way valve is arranged in a cavity of the air valve; the air valve comprises a flexible air inlet pipeline, the air inlet end of the air inlet pipeline is hermetically connected to the heat dissipation hole of the computer host case, and the air outlet end of the air valve is hermetically connected with the air inlet end of the air valve; the keyboard module adopts a traditional keyboard structure, the keyboard module comprises an air storage pad, the air storage pad is flat, a key hole is arranged on the air storage pad, the position and the size of the key hole are arranged corresponding to the position and the size of a keyboard key groove, and the air storage pad is arranged on a supporting plate of the keyboard key groove; the pressing module comprises a telescopic gas column which is telescopic up and down, the telescopic gas column is made of a corrugated pipe material, and the bottom of the telescopic gas column is communicated with the gas storage pad; each two of the telescopic air columns are in a group, each group of the telescopic air columns is symmetrically arranged, the number of the groups of the telescopic air columns is arranged corresponding to the number of the key holes, the telescopic air columns are arranged on the outer side of the key slot, and the upper ends of the telescopic air columns are contacted with the bottoms of the keys; the pressing module comprises an air pressure plate, the air pressure plate is arranged inside the joint of the telescopic air column and the air storage pad, an exhaust hole is formed in the air pressure plate, one end of the exhaust hole is communicated with the inside of the telescopic air column, and the other end of the exhaust hole is communicated with the outside air; the exhaust hole is internally provided with an adjusting film made of a rubber material, and the adjusting film is arranged at the upper end of the exhaust hole.
Preferably, the top of the telescopic gas column is provided with a heat dissipation hole, a heat conduction plate is arranged right above the telescopic gas column, and the top of the heat conduction plate is fixedly connected with the bottom of the key; the center of button is equipped with the heating groove of fretwork, the upper end of heat-conducting plate extends to in the heating groove.
Preferably, a guide pipe is arranged on the outer side of the exhaust hole, one end of the guide pipe is in sealing connection with the exhaust hole, and the other end of the guide pipe points to a gap between the upper keys.
Preferably, the air storage cushion is made of elastic rubber materials, a pressure release valve is arranged on the air storage cushion, and hot air is guided into the surface of the keyboard through an exhaust pipeline at the exhaust end of the pressure release valve.
The invention has the beneficial effects that: when the automatic pressure control heating keyboard device is used, a user starts the air valve, and the air valve pumps heat in the case of the computer host into the air storage cushion through the air inlet pipeline, so that hot air is accumulated in the air storage cushion; at the moment, because the internal temperature of the keyboard is low initially, the surface area of the adjusting film is small due to the properties of expansion with heat and contraction with cold, and therefore the ventilation area of the exhaust hole is large; when a user presses the keyboard, the pressing resistance of the keys is small; meanwhile, when the keys are pressed, hot air in the telescopic air column is exhausted through the exhaust holes and is sprayed out from gaps among the keys to act on the hands of a user, so that the heating effect is achieved, and the pressing resistance of the keys can be automatically reduced, so that the user can save labor when the user presses the keys when the fingers are stiff due to low temperature; when the temperature in the keyboard is gradually increased, the surface area of the adjusting film is enlarged due to the expansion caused by heat and the contraction caused by cold, so that the ventilation area of the exhaust hole is also reduced, the pressing resistance of a user when pressing the key is enlarged, the proper pressing feedback can be provided for the fingers which are in a rigid state, and the use feeling of the user on the keyboard is improved; at the moment, the user can close the air valve to achieve the energy-saving effect because the air valve does not need to be continuously heated.
Drawings
FIG. 1 is a top view of an auto pressure heating keyboard assembly keyboard module of the present invention.
FIG. 2 is a front view of the automatic pressure control heating keyboard apparatus of the present invention when air is supplied.
FIG. 3 is a front view of the automatic pressure control heating keyboard apparatus of the present invention exhausting air.
Fig. 4 is an enlarged view of the invention at a in fig. 2.
Detailed Description
The invention is further illustrated with reference to the following figures and examples:
as shown in fig. 1, 2, 3 and 4, the automatic pressure control heating keyboard device heats a user by transferring heat in a computer case to the user's fingers; meanwhile, the resilience of the keyboard can be automatically reduced initially, so that a user can easily use the keyboard when the fingers are stiff, and after the temperature is gradually increased, the resilience of the keyboard is gradually improved, so that higher resilience feedback is provided for the user, and the use efficiency of the keyboard is improved, wherein the device comprises an air inlet module 1, a keyboard module 2 and a pressing module 3; the air inlet module 1 comprises an air valve 11, fan blades driven by a motor are arranged in the air valve 11, an air inlet and an air outlet are formed in the air valve 11, and a one-way valve is arranged in a cavity channel of the air valve 11; the air valve 11 comprises a flexible air inlet pipeline 12, the air inlet end of the air inlet pipeline 12 is hermetically connected to a heat dissipation hole of a computer host case, and the air outlet end of the air valve 11 is hermetically connected with the air inlet end of the computer host case; the keyboard module 2 adopts a traditional keyboard structure, the keyboard module 2 comprises an air storage cushion 21, the air storage cushion 21 is flat, the air storage cushion 21 is provided with key holes, the positions and the sizes of the key holes are arranged corresponding to the positions and the sizes of keyboard key grooves, and the air storage cushion 21 is arranged on a supporting plate 22 of the keyboard key grooves; the pressing module 3 comprises a telescopic gas column 31 which is telescopic up and down, the telescopic gas column 31 is made of a corrugated pipe material, and the bottom of the telescopic gas column 31 is communicated with the gas storage cushion 21; every two of the telescopic air columns 31 are in one group, each group of the telescopic air columns 31 is symmetrically arranged, the number of the groups of the telescopic air columns 31 is corresponding to the number of the key holes, the telescopic air columns 31 are arranged on the outer side of the key pressing groove, and the upper ends of the telescopic air columns 31 are in contact with the bottoms of the keys; the pressing module 3 comprises an air pressure plate 32, the air pressure plate 32 is arranged inside the joint of the telescopic air column 31 and the air storage cushion 21, an air exhaust hole is arranged on the air pressure plate 32, one end of the air exhaust hole is communicated with the inside of the telescopic air column 31, and the other end of the air exhaust hole is communicated with the outside air; be provided with the regulation membrane 33 of rubber materials preparation in the exhaust hole, regulation membrane 33 sets up the upper end in exhaust hole.
When the automatic pressure control heating keyboard device is used, a user starts the air valve 11, the air valve 11 pumps heat in a computer mainframe case into the air storage cushion 21 through the air inlet pipeline 12, and therefore hot air is accumulated in the air storage cushion 21; at this time, because the internal temperature of the keyboard is low initially, the surface area of the adjusting film 33 is small due to the properties of expansion with heat and contraction with cold, and therefore the ventilation area of the exhaust hole is large; when a user presses the keyboard, the pressing resistance of the keys is small; meanwhile, when the keys are pressed, hot air in the telescopic air column 31 is exhausted through the exhaust holes and is sprayed out from gaps among the keys to act on the hands of a user, so that the heating effect is achieved, and the pressing resistance of the keys can be automatically reduced, so that the user is labor-saving when the user presses the keys when the fingers are stiff due to low air temperature; when the temperature in the keyboard gradually rises, the surface area of the adjusting film 33 is enlarged due to the expansion and contraction properties, so that the ventilation area of the exhaust hole is reduced, the pressing resistance of a user when pressing the key is enlarged, a proper pressing feedback can be provided for the fingers which are in a rigid state, and the use feeling of the user on the keyboard is improved; at this time, the user can close the air valve 11 to achieve the energy-saving effect because the user does not need to continue heating.
As shown in fig. 2 and 3, the top of the telescopic gas column 31 is provided with heat dissipation holes, a heat conduction plate is arranged right above the telescopic gas column 31, and the top of the heat conduction plate is fixedly connected with the bottom of the key; the center of button is equipped with the heating groove of fretwork, the upper end of heat-conducting plate extends to in the heating groove. The heat conducting plate can transmit heat to in the heating groove, user's finger with can experience the heat when the button contact, further heat user's finger.
As shown in fig. 2 and 3, a guide tube is arranged outside the exhaust hole, one end of the guide tube is hermetically connected with the exhaust hole, and the other end of the guide tube points to a gap between the upper keys. The stand pipe can follow steam evenly spouts in the clearance between the button, direct action and user's palm further improve the heating effect.
As shown in fig. 1, the air storage cushion 21 is made of an elastic rubber material, a pressure release valve is arranged on the air storage cushion 21, and hot air is introduced to the surface of the keyboard through an exhaust pipe at the exhaust end of the pressure release valve. The pressure relief valve can prevent the air pressure in the air storage cushion 21 from being too high when a user stops using the keyboard; meanwhile, the redundant heat is directly applied to the keyboard, and the heating effect is further improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, but rather as the subject matter of the invention is to be construed in all aspects and as broadly as possible, and all changes, equivalents and modifications that fall within the true spirit and scope of the invention are therefore intended to be embraced therein.
Claims (4)
1. The utility model provides an automatic accuse is pressed heating keyboard device, it includes module (1), keyboard module (2) and presses module (3) of admitting air, its characterized in that: the air inlet module (1) comprises an air valve (11), fan blades driven by a motor are arranged in the air valve (11), an air inlet and an air outlet are formed in the air valve (11), and a one-way valve is arranged in a cavity channel of the air valve (11); the air valve (11) comprises a flexible air inlet pipeline (12), the air inlet end of the air inlet pipeline (12) is hermetically connected to a heat dissipation hole of a computer host case, and the air outlet end of the air valve (11) is hermetically connected with the air inlet end of the air valve; the keyboard module (2) adopts a traditional keyboard structure, the keyboard module (2) comprises an air storage cushion (21), the air storage cushion (21) is flat, the air storage cushion (21) is provided with key holes, the positions and the sizes of the key holes correspond to those of keyboard key grooves, and the air storage cushion (21) is arranged on a supporting plate (22) of the keyboard key grooves; the pressing module (3) comprises a telescopic air column (31) which is telescopic up and down, the telescopic air column (31) is made of a corrugated pipe material, and the bottom of the telescopic air column (31) is communicated with the air storage cushion (21); two of the telescopic air columns (31) are in a group, each group of the telescopic air columns (31) is symmetrically arranged, the number of the groups of the telescopic air columns (31) is corresponding to the number of the key holes, the telescopic air columns (31) are arranged on the outer side of the key slot, and the upper ends of the telescopic air columns (31) are in contact with the bottoms of the keys; the pressing module (3) comprises an air pressure plate (32), the air pressure plate (32) is arranged inside the joint of the telescopic air column (31) and the air storage cushion (21), an air exhaust hole is formed in the air pressure plate (32), one end of the air exhaust hole is communicated with the inside of the telescopic air column (31), and the other end of the air exhaust hole is communicated with the outside air; be provided with regulation membrane (33) of rubber materials preparation in the exhaust hole, regulation membrane (33) set up the upper end in exhaust hole.
2. An automatic pressure control heating keyboard apparatus according to claim 1, wherein: the top of the telescopic gas column (31) is provided with a heat dissipation hole, a heat conduction plate is arranged right above the telescopic gas column (31), and the top of the heat conduction plate is fixedly connected with the bottom of the key; the center of button is equipped with the heating groove of fretwork, the upper end of heat-conducting plate extends to in the heating groove.
3. An automatic pressure control heating keyboard apparatus according to claim 1, wherein: the exhaust hole outside is provided with the stand pipe, stand pipe one end with exhaust hole sealing connection, the other end points to the clearance between the top button.
4. An automatic pressure control heating keyboard apparatus according to claim 1, wherein: the air storage cushion (21) is made of elastic rubber materials, a pressure release valve is arranged on the air storage cushion (21), and the exhaust end of the pressure release valve guides hot air into the surface of the keyboard through an exhaust pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010720475.3A CN111897438B (en) | 2020-07-24 | 2020-07-24 | Automatic pressure-control heating keyboard device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010720475.3A CN111897438B (en) | 2020-07-24 | 2020-07-24 | Automatic pressure-control heating keyboard device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111897438A true CN111897438A (en) | 2020-11-06 |
| CN111897438B CN111897438B (en) | 2023-06-23 |
Family
ID=73189256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010720475.3A Active CN111897438B (en) | 2020-07-24 | 2020-07-24 | Automatic pressure-control heating keyboard device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111897438B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04242414A (en) * | 1991-01-17 | 1992-08-31 | Fujitsu Ltd | Keyboard device |
| JPH11327754A (en) * | 1998-05-21 | 1999-11-30 | Canon Inc | Keyboard |
| US20050156895A1 (en) * | 2003-12-24 | 2005-07-21 | Tien-Hwa Ho | Portable put-on keyboard glove |
| KR20090067039A (en) * | 2007-12-20 | 2009-06-24 | 호발츠벨케 도이췌 벨프트 게엠베하 | Gas valve arrangement |
| JP2013190917A (en) * | 2012-03-13 | 2013-09-26 | Nec Computertechno Ltd | Electronic device unit and dust-proof method for the same |
| US20130249802A1 (en) * | 2012-03-23 | 2013-09-26 | Primax Electronics Ltd. | Touch keyboard |
| CN107943308A (en) * | 2017-12-08 | 2018-04-20 | 宁波得晴电器科技有限公司 | The application method of Multi-Function Keyboard |
| CN108010761A (en) * | 2016-10-28 | 2018-05-08 | 研能科技股份有限公司 | Liftable keyboard structure |
| CN110223874A (en) * | 2019-06-28 | 2019-09-10 | 朱虹斐 | Stroke adjustable keyboard |
| CN110277265A (en) * | 2019-06-28 | 2019-09-24 | 朱虹斐 | Depressurize keyboard |
-
2020
- 2020-07-24 CN CN202010720475.3A patent/CN111897438B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04242414A (en) * | 1991-01-17 | 1992-08-31 | Fujitsu Ltd | Keyboard device |
| JPH11327754A (en) * | 1998-05-21 | 1999-11-30 | Canon Inc | Keyboard |
| US20050156895A1 (en) * | 2003-12-24 | 2005-07-21 | Tien-Hwa Ho | Portable put-on keyboard glove |
| KR20090067039A (en) * | 2007-12-20 | 2009-06-24 | 호발츠벨케 도이췌 벨프트 게엠베하 | Gas valve arrangement |
| JP2013190917A (en) * | 2012-03-13 | 2013-09-26 | Nec Computertechno Ltd | Electronic device unit and dust-proof method for the same |
| US20130249802A1 (en) * | 2012-03-23 | 2013-09-26 | Primax Electronics Ltd. | Touch keyboard |
| CN108010761A (en) * | 2016-10-28 | 2018-05-08 | 研能科技股份有限公司 | Liftable keyboard structure |
| CN107943308A (en) * | 2017-12-08 | 2018-04-20 | 宁波得晴电器科技有限公司 | The application method of Multi-Function Keyboard |
| CN110223874A (en) * | 2019-06-28 | 2019-09-10 | 朱虹斐 | Stroke adjustable keyboard |
| CN110277265A (en) * | 2019-06-28 | 2019-09-24 | 朱虹斐 | Depressurize keyboard |
Non-Patent Citations (2)
| Title |
|---|
| I. SCOTT MACKENZIE; SHAWN X. ZHANG;: "The design and evaluation of a high-performance soft keyboard" * |
| 楚杰等: "键盘的创新设计", 《工程图学学报》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111897438B (en) | 2023-06-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106200993B (en) | Water-cooling keyboard | |
| CN111897438A (en) | Automatic pressure control heating keyboard device | |
| CN207634758U (en) | Heat exchanger bidirection press regulating device and high-temperature heat-exchanging | |
| CN110410909B (en) | House temperature conduction equipment | |
| CN204143391U (en) | Computer mouse | |
| CN202306450U (en) | Temperature-controlling keyboard membrane | |
| CN209045433U (en) | A kind of liquid expanding temperature detect switch (TDS) | |
| CN102113813A (en) | Film covering device of shoe cover making machine | |
| CN113485561A (en) | Pressing force adjusting mechanism of keyboard | |
| CN202378131U (en) | Heat circulator for board hot press | |
| CN208762672U (en) | A kind of non-woven fabrics hot-press arrangement of good heat dissipation effect | |
| CN208271141U (en) | wearable mouse | |
| CN112454917A (en) | Multilayer polyester fiber pad hot-pressing bonding equipment | |
| CN105479528A (en) | Handle for cutting machine | |
| CN104842425A (en) | Natural solid wood bending pretreatment pre-compression equipment and compression method thereof | |
| CN211103641U (en) | Assembling tool of 3D printing pen | |
| CN214846625U (en) | Heatable keyboard hand rest | |
| CN205443141U (en) | Device of gelatinization in advance of starch gluing agent | |
| CN213798302U (en) | Hot briquetting machine that stationarity is high | |
| CN203897440U (en) | Electric heating insole | |
| CN111360843B (en) | Use method of legal consultation robot | |
| CN219752775U (en) | Waterway micro-motion control device, iron and steam electric iron | |
| CN217733557U (en) | Iron integrating ironing | |
| CN216224473U (en) | Heating device of temperature controller endurance testing machine | |
| CN218068802U (en) | Easy-to-touch multi-key keyboard |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20230525 Address after: 518000 area a, 3rd floor, building 2, phase 3, yangbei Industrial Zone, Huangtian community, Xixiang street, Bao'an District, Shenzhen City, Guangdong Province Applicant after: SHENZHEN MEETION TECH Co.,Ltd. Address before: 246200 No. 898, Taihua village, Liangquan Township, Wangjiang County, Anqing City, Anhui Province Applicant before: Wang Hengfei |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |