loadpatents
name:-0.19312977790833
name:-0.11928486824036
name:-0.011138916015625
OSAWA; Hiroshi Patent Filings

OSAWA; Hiroshi

Patent Applications and Registrations

Patent applications and USPTO patent grants for OSAWA; Hiroshi.The latest application filed is for "joint unit".

Company Profile
11.86.94
  • OSAWA; Hiroshi - Kanagawa JP
  • OSAWA; Hiroshi - Musashino-shi Tokyo
  • OSAWA; Hiroshi - Tokyo JP
  • Osawa; Hiroshi - Sunnyvale CA
  • Osawa; Hiroshi - Utsunomiya JP
  • OSAWA; Hiroshi - Utsunomiya-shi JP
  • Osawa; Hiroshi - Chiba JP
  • OSAWA; Hiroshi - Chiba-shi JP
  • Osawa; Hiroshi - Wako JP
  • Osawa; Hiroshi - Ichihara JP
  • Osawa; Hiroshi - Ichihara-shi JP
  • Osawa; Hiroshi - CHIBA-KEN JP
  • Osawa; Hiroshi - Tochigi-ken JP
  • Osawa, Hiroshi - Osaka JP
  • Osawa; Hiroshi - Yokohama JP
  • Osawa; Hiroshi - Saitama JP
  • Osawa; Hiroshi - Atsugi JP
*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.
Patent Activity
PatentDate
Joint Unit
App 20220305677 - FUKAMACHI; Katsutsugu ;   et al.
2022-09-29
Registration System, Registration Method, And Registration Program
App 20220182361 - HAYASHI; Yuhei ;   et al.
2022-06-09
Communication System And Method Of Verifying Continuity
App 20220131789 - MIYOSHI; Yuki ;   et al.
2022-04-28
Communication System And Communication Method
App 20220131722 - NISHIOKA; Takeaki ;   et al.
2022-04-28
Communication system and communication method
Grant 11,272,008 - Osawa March 8, 2
2022-03-08
Control device and control method
Grant 11,212,206 - Nishiki , et al. December 28, 2
2021-12-28
Detection Device And Detection Method
App 20210385241 - HAYASHI; Yuhei ;   et al.
2021-12-09
Displays with silicon and semiconducting oxide thin-film transistors
Grant 11,177,291 - Osawa , et al. November 16, 2
2021-11-16
Control Device And Control Method
App 20210336865 - Nishiki; Masayuki ;   et al.
2021-10-28
Estimation Method, Estimation Device, And Estimation Program
App 20210328932 - SUZUKI; Hiroshi ;   et al.
2021-10-21
Control Device And Control Method
App 20210303332 - Inoue; Satomi ;   et al.
2021-09-30
Analysis System And Analysis Method
App 20210250259 - KUDO; Ichiro ;   et al.
2021-08-12
Rotation transmitting device
Grant 11,073,196 - Togawa , et al. July 27, 2
2021-07-27
Displays With Silicon and Semiconducting Oxide Thin-Film Transistors
App 20210225890 - Osawa; Hiroshi ;   et al.
2021-07-22
Arm driving apparatus
Grant 11,059,189 - Osawa July 13, 2
2021-07-13
Smell presentation device with environment condition-based smell intensity correction
Grant 10,942,940 - Hirata , et al. March 9, 2
2021-03-09
Information Collecting System And Information Collecting Method
App 20210006488 - Kikkawa; Takamichi ;   et al.
2021-01-07
Communication System And Communication Method
App 20200412805 - Osawa; Hiroshi
2020-12-31
Fragrance presentation device
Grant 10,709,973 - Osawa , et al.
2020-07-14
Information processing apparatus
Grant 10,525,349 - Nishimaki , et al. J
2020-01-07
Information processing apparatus, information processing system, and information processing method
Grant 10,510,189 - Numaguchi , et al. Dec
2019-12-17
Information processing apparatus, information processing system, assembled device, and information processing method
Grant 10,471,343 - Hirata , et al. Nov
2019-11-12
Image generating device and image generating method
Grant 10,410,562 - Osawa , et al. Sept
2019-09-10
Arm Driving Apparatus
App 20190248026 - Osawa; Hiroshi
2019-08-15
Display with backlight recycling structures
Grant 10,302,844 - Xu , et al.
2019-05-28
Block, block system, information processing apparatus, display method, and information processing method
Grant 10,293,268 - Hirata , et al.
2019-05-21
Rotation Transmitting Device
App 20190107181 - Togawa; Keiji ;   et al.
2019-04-11
Information processing apparatus and information processing method
Grant 10,192,360 - Osawa , et al. Ja
2019-01-29
Information processing device, information processing system, block system, and information processing method
Grant 10,146,332 - Togawa , et al. De
2018-12-04
Information processing device and information processing method
Grant 10,130,883 - Hirata , et al. November 20, 2
2018-11-20
Touch screen display uniformity
Grant 10,048,788 - Chen , et al. August 14, 2
2018-08-14
Manipulator and manipulation apparatus
Grant 10,039,973 - Osawa , et al. August 7, 2
2018-08-07
Fragrance Presentation Device
App 20180147484 - Osawa; Hiroshi ;   et al.
2018-05-31
Information Processing Device
App 20180144033 - HIRATA; Shinichi ;   et al.
2018-05-24
Information Processing Apparatus
App 20180140950 - Nishimaki; Yoichi ;   et al.
2018-05-24
Image capturing device, and image capturing method
Grant 9,979,884 - Hirata , et al. May 22, 2
2018-05-22
Displays with flipped panel structures
Grant 9,964,820 - Yang , et al. May 8, 2
2018-05-08
Displays with silicon and semiconducting oxide thin-film transistors
Grant 9,818,765 - Osawa , et al. November 14, 2
2017-11-14
Display circuitry with reduced metal routing resistance
Grant 9,704,888 - Chen , et al. July 11, 2
2017-07-11
Information Processing Apparatus And Information Processing Method
App 20170182412 - Osawa; Hiroshi ;   et al.
2017-06-29
Image capturing device and image capturing method
Grant 9,692,966 - Hirata , et al. June 27, 2
2017-06-27
Liquid crystal displays with minimized transmission loss and enhanced off-axis color fidelity
Grant 9,645,464 - Yang , et al. May 9, 2
2017-05-09
Color filter structures for electronic devices with color displays
Grant 9,645,436 - Chen , et al. May 9, 2
2017-05-09
Display with column spacer structures
Grant 9,612,470 - Choi , et al. April 4, 2
2017-04-04
Border masking structures for liquid crystal display
Grant 9,612,492 - Yang , et al. April 4, 2
2017-04-04
Haptic device
Grant 9,607,490 - Osawa , et al. March 28, 2
2017-03-28
Obstacle avoidance apparatus and obstacle avoidance method
Grant 9,599,818 - Yamagishi , et al. March 21, 2
2017-03-21
Image generation device and image generation method for multiplexing captured images to generate an image stream
Grant 9,583,133 - Hirata , et al. February 28, 2
2017-02-28
Liquid crystal displays with oxide-based thin-film transistors
Grant 9,564,478 - Chang , et al. February 7, 2
2017-02-07
Information Processing Apparatus, Information Processing System, And Information Processing Method
App 20170024934 - NUMAGUCHI; Naoki ;   et al.
2017-01-26
Display circuitry with improved transmittance and reduced coupling capacitance
Grant 9,530,801 - Nozu , et al. December 27, 2
2016-12-27
Information Processing Device And Information Processing Method
App 20160332075 - Hirata; Shinichi ;   et al.
2016-11-17
Information Processing Apparatus, Information Processing System, Assembled Device, And Information Processing Method
App 20160332071 - Hirata; Shinichi ;   et al.
2016-11-17
Information Processing Device, Information Processing System, Block System, And Information Processing Method
App 20160334885 - Togawa; Keiji ;   et al.
2016-11-17
Block, Block System, Information Processing Apparatus, Display Method, And Information Processing Method
App 20160310861 - Hirata; Shinichi ;   et al.
2016-10-27
Calibration apparatus, calibration method, and manufacturing method for an electronic device
Grant 9,476,709 - Fukushima , et al. October 25, 2
2016-10-25
Touch Screen Display Uniformity
App 20160266693 - CHEN; Yu Cheng ;   et al.
2016-09-15
Display driver circuitry for liquid crystal displays with semiconducting-oxide thin-film transistors
Grant 9,412,799 - Chang , et al. August 9, 2
2016-08-09
Liquid Crystal Displays With Minimized Transmission Loss and Enhanced Off-Axis Color Fidelity
App 20160209691 - Yang; Byung Duk ;   et al.
2016-07-21
Display With Backlight Recycling Structures
App 20160170129 - Xu; Ming ;   et al.
2016-06-16
Input apparatus using connectable blocks, information processing system, information processor, and information processing method
Grant 9,229,528 - Numaguchi , et al. January 5, 2
2016-01-05
Color Filter Structures for Electronic Devices With Color Displays
App 20150362795 - Chen; Yu-Cheng ;   et al.
2015-12-17
Haptic Device
App 20150235530 - Osawa; Hiroshi ;   et al.
2015-08-20
Display having a backplane with interlaced laser crystallized regions
Grant 9,111,757 - Chen , et al. August 18, 2
2015-08-18
Displays with Flipped Panel Structures
App 20150219972 - Yang; Byung Duk ;   et al.
2015-08-06
Display with Column Spacer Structures
App 20150198844 - Choi; Sang Un ;   et al.
2015-07-16
Display Circuitry with Improved Transmittance and Reduced Coupling Capacitance
App 20150200207 - Nozu; Daisuke ;   et al.
2015-07-16
Display Circuitry with Reduced Metal Routing Resistance
App 20150194443 - Chen; Yu Cheng ;   et al.
2015-07-09
Measurement apparatus for measuring a surface shape of an object based on an interference signal
Grant 9,062,967 - Osawa June 23, 2
2015-06-23
Image Generating Device And Image Generating Method
App 20150163473 - Osawa; Hiroshi ;   et al.
2015-06-11
Image Generation Device And Image Generation Method
App 20150162048 - Hirata; Shinichi ;   et al.
2015-06-11
Border Masking Structures for Liquid Crystal Display
App 20150146144 - Yang; Byung Duk ;   et al.
2015-05-28
Image Capturing Device And Image Capturing Method
App 20150145952 - Hirata; Shinichi ;   et al.
2015-05-28
Image Capturing Device, And Image Capturing Method
App 20150116453 - Hirata; Shinichi ;   et al.
2015-04-30
Measurement Apparatus
App 20150070710 - OSAWA; Hiroshi
2015-03-12
Liquid Crystal Displays with Oxide-Based Thin-Film Transistors
App 20150055047 - Chang; Shih Chang ;   et al.
2015-02-26
Displays With Silicon and Semiconducting Oxide Thin-Film Transistors
App 20150055051 - Osawa; Hiroshi ;   et al.
2015-02-26
Display Driver Circuitry For Liquid Crystal Displays With Semiconducting-Oxide Thin-Film Transistors
App 20150054799 - Chang; Shih Chang ;   et al.
2015-02-26
Display Having A Backplane With Interlaced Laser Crystallized Regions
App 20140319468 - Chen; Yu Cheng ;   et al.
2014-10-30
Manipulator And Manipulation Apparatus
App 20140323219 - Osawa; Hiroshi ;   et al.
2014-10-30
Mobile type image display device, method for controlling the same and information memory medium
Grant 8,854,320 - Hirata , et al. October 7, 2
2014-10-07
Controller Device
App 20140094309 - Osawa; Hiroshi ;   et al.
2014-04-03
Input Apparatus Using Connectable Blocks, Information Processing System, Information Processor, And Information Processing Method
App 20140015813 - NUMAGUCHI; Naoki ;   et al.
2014-01-16
Obstacle Avoidance Apparatus And Obstacle Avoidance Method
App 20130328928 - YAMAGISHI; Takeshi ;   et al.
2013-12-12
Measurement Apparatus
App 20130235386 - Osawa; Hiroshi
2013-09-12
Operation device, information processing system, and information processing method
Grant 8,416,190 - Hirata , et al. April 9, 2
2013-04-09
Semiconductor light-emitting device, method of manufacturing semiconductor light-emitting device, and lamp
Grant 8,334,200 - Fukunaga , et al. December 18, 2
2012-12-18
Method Of Manufacturing Gallium Nitride-based Compound Semiconductor Light-emitting Device, Gallium Nitride-based Compound Semiconductor Light-emitting Device, And Lamp
App 20120228665 - FUKUNAGA; Naoki ;   et al.
2012-09-13
Method of manufacturing gallium nitride-based compound semiconductor light-emitting device, gallium nitride-based compound semiconductor light-emitting device, and lamp
Grant 8,207,003 - Fukunaga , et al. June 26, 2
2012-06-26
Calibration Apparatus, Calibration Method, And Manufacturing Method For An Electronic Device
App 20120130667 - FUKUSHIMA; Noriyuki ;   et al.
2012-05-24
Light Emitting Element, Method Of Producing Same, Lamp, Electronic Equipment, And Mechinical Apparatus
App 20120097922 - Masuya; Kyosuke ;   et al.
2012-04-26
Gallium nitride compound semiconductor light-emitting device, method of manufacturing the same, and lamp including the same
Grant 8,143,635 - Fukunaga , et al. March 27, 2
2012-03-27
Light-emitting device, manufacturing method thereof, and lamp
Grant 8,124,992 - Osawa , et al. February 28, 2
2012-02-28
Gallium nitride based compound semiconductor light-emitting device and method for manufacturing same
Grant 8,026,118 - Shinohara , et al. September 27, 2
2011-09-27
Grille for automobiles
Grant D645,796 - Osawa September 27, 2
2011-09-27
Mobile Type Image Display Device, Method For Controlling The Same And Information Memory Medium
App 20110187660 - Hirata; Shinichi ;   et al.
2011-08-04
Semiconductor light-emitting device, manufacturing method thereof, and lamp
Grant 7,982,232 - Osawa , et al. July 19, 2
2011-07-19
GaN based semiconductor light emitting device and lamp
Grant 7,968,361 - Osawa , et al. June 28, 2
2011-06-28
Nitride semiconductor light-emitting device and production method thereof
Grant 7,939,845 - Osawa , et al. May 10, 2
2011-05-10
Production method for nitride semiconductor light emitting device
Grant 7,939,351 - Osawa , et al. May 10, 2
2011-05-10
Gallium Nitride Based Compound Semiconductor Light-emitting Device Having High Emission Efficiency And Method Of Manufacturing The Same
App 20110104837 - Fukunaga; Naoki ;   et al.
2011-05-05
Gallium nitride based compound semiconductor light-emitting device having high emission efficiency and method of manufacturing the same
Grant 7,893,449 - Fukunaga , et al. February 22, 2
2011-02-22
Gallium nitride-based compound semiconductor light-emitting device and production method thereof
Grant 7,875,474 - Muraki , et al. January 25, 2
2011-01-25
GaN-based semiconductor light-emitting device and method for the fabrication thereof
Grant 7,821,018 - Osawa , et al. October 26, 2
2010-10-26
Titanium materials with coating layer, laminated glass using the same and methods of manufacturing the same
Grant 7,803,462 - Takahashi , et al. September 28, 2
2010-09-28
Method For Producing Gallium Nitride Based Compound Semiconductor Light Emitting Device, Gallium Nitride Based Compound Semiconductor Light Emitting Device, And Lamp Using The Same
App 20100230714 - Shinohara; Hironao ;   et al.
2010-09-16
Nitride semiconductor light emitting device and production method thereof
Grant 7,786,489 - Osawa , et al. August 31, 2
2010-08-31
Gallium Nitride Compound Semiconductor Light-emitting Device, Method Of Manufacturing The Same, And Lamp Including The Same
App 20100163886 - Fukunaga; Naoki ;   et al.
2010-07-01
Production Method For Nitride Semiconductor Light Emitting Device
App 20100136727 - Osawa; Hiroshi ;   et al.
2010-06-03
Light-emitting Device, Manufacturing Method Thereof, And Lamp
App 20100052007 - OSAWA; Hiroshi ;   et al.
2010-03-04
Semiconductor Light-emitting Device, Manufacturing Method Thereof, And Lamp
App 20100051981 - OSAWA; Hiroshi ;   et al.
2010-03-04
Operation Device, Information Processing System, And Information Processing Method
App 20100020013 - Hirata; Shinichi ;   et al.
2010-01-28
Gallium Nitride Based Compound Semiconductor Light-Emitting Device and Method for manufacturing Same
App 20090309119 - Shinohara; Hironao ;   et al.
2009-12-17
Nitride Semiconductor Light-emitting Device And Production Method Thereof
App 20090283793 - Osawa; Hiroshi ;   et al.
2009-11-19
GaN-BASED SEMICONDUCTOR LIGHT-EMITTING DEVICE AND METHOD FOR THE FABRICATION THEREOF
App 20090278164 - Osawa; Hiroshi ;   et al.
2009-11-12
Gallium Nitride Based Compound Semiconductor Light-emitting Device And Method Of Manufacturing The Same
App 20090278158 - Fukunaga; Naoki ;   et al.
2009-11-12
Gallium Nitride-based Compound Semiconductor Light-emitting Device And Production Method Thereof
App 20090267103 - Muraki; Noritaka ;   et al.
2009-10-29
Semiconductor Light-emitting Device, Method Of Manufacturing Semiconductor Light-emitting Device, And Lamp
App 20090179220 - Fukunaga; Naoki ;   et al.
2009-07-16
Magnetic recording medium and magnetic recording and reproducing device
Grant 7,550,211 - Osawa , et al. June 23, 2
2009-06-23
Magnetic Recording Medium, Production Process Thereof, and Magnetic Recording and Reproducing Apparatus
App 20090130346 - Osawa; Hiroshi ;   et al.
2009-05-21
GaN BASED SEMICONDUCTOR LIGHT EMITTING DEVICE AND LAMP
App 20090114933 - Osawa; Hiroshi ;   et al.
2009-05-07
Method Of Manufacturing Magnetic Recording Medium, Magnetic Recording Medium And Surface Treatment Apparatus
App 20090097165 - Osawa; Hiroshi ;   et al.
2009-04-16
Method Of Manufacturing Gallium Nitride-based Compound Semiconductor Light-emitting Device, Gallium Nitride-based Compound Semiconductor Light-emitting Device, And Lamp
App 20090090922 - Fukunaga; Naoki ;   et al.
2009-04-09
Magnetic Recording Medium, Production Process Thereof, And Magnetic Recording And Reproducing Apparatus
App 20090068499 - Osawa; Hiroshi
2009-03-12
Nitride Semiconductor Light Emitting Device And Production Method Thereof
App 20090045433 - Osawa; Hiroshi ;   et al.
2009-02-19
Cleaning Apparatus And Method, Exposure Apparatus Having The Cleaning Apparatus, And Device Manufacturing Method
App 20090020137 - Osawa; Hiroshi
2009-01-22
Light-emitting Device, Manufacturing Method Thereof, And Lamp
App 20090008672 - OSAWA; Hiroshi ;   et al.
2009-01-08
Semiconductor Light-emitting Device, Manufacturing Method Thereof, And Lamp
App 20090001407 - OSAWA; Hiroshi ;   et al.
2009-01-01
Magnetic Recording Medium and Production Process Thereof
App 20080310050 - Osawa; Hiroshi ;   et al.
2008-12-18
Magnetic Recording Media and Production Process Thereof
App 20080305364 - Osawa; Hiroshi ;   et al.
2008-12-11
Particle remover, exposure apparatus having the same, and device manufacturing method
Grant 7,414,240 - Ohkubo , et al. August 19, 2
2008-08-19
Magnetic Recording Medium, Production Method Thereof, and Magnetic Recording and Reproducing Apparatus
App 20080193800 - Osawa; Hiroshi ;   et al.
2008-08-14
Magnetic Recording Medium, Production Process Thereof, and Magnetic Recording and Reproducing Apparatus
App 20080166597 - Osawa; Hiroshi
2008-07-10
Exposure apparatus comprising cleaning apparatus for cleaning mask with laser beam
Grant 7,379,151 - Osawa , et al. May 27, 2
2008-05-27
Substrate For Magnetic Recording Medium, Magnetic Recording Medium, And Magnetic Recording And Reproducing Device
App 20080020239 - Osawa; Hiroshi
2008-01-24
Magnetic recording medium and magnetic recording and reproducing device
App 20070122659 - Osawa; Hiroshi ;   et al.
2007-05-31
Exposure Apparatus
App 20070013892 - Osawa; Hiroshi ;   et al.
2007-01-18
Magnetic Recording Medium, Production Process Therefor, And Magnetic Recording And Reproducing Apparatus
App 20060204792 - Osawa; Hiroshi
2006-09-14
Particle remover, exposure apparatus having the same, and device manufacturing method
App 20060086371 - Ohkubo; Akinori ;   et al.
2006-04-27
Rear combination lamp for an automobile
Grant D518,581 - Osawa April 4, 2
2006-04-04
Front combination lamp for an automobile
Grant D518,197 - Osawa March 28, 2
2006-03-28
Magnetic recording medium, production process thereof, and magnetic recording and reproducing apparatus
Grant 7,006,328 - Osawa February 28, 2
2006-02-28
Magnetic recording medium, production process thereof, and magnetic recording and reproducing apparatus
Grant 6,942,933 - Osawa September 13, 2
2005-09-13
Magnetic recording medium, production process thereof, and magnetic recording and reproducing apparatus
Grant 6,926,977 - Osawa , et al. August 9, 2
2005-08-09
Titanium material having coating layer at its surface laminated glass including the same and process for producing them
App 20050123745 - Takahashi, Takehiro ;   et al.
2005-06-09
Laser gas supply path structure in an exposure apparatus
Grant 6,847,672 - Ohmi , et al. January 25, 2
2005-01-25
Gas supply path structure for a gas laser
Grant 6,804,285 - Ohmi , et al. October 12, 2
2004-10-12
Charging system for mobile robot, method for searching charging station, mobile robot, connector, and electrical connection structure
Grant 6,764,373 - Osawa , et al. July 20, 2
2004-07-20
Robot and control method for controlling the robot's motions
Grant 6,760,646 - Osawa July 6, 2
2004-07-06
Magnetic recording medium, production process thereof, and magnetic recording and reporducing apparatus
App 20040037005 - Osawa, Hiroshi
2004-02-26
Magnetic recording medium, production process thereof, and magnetic recording and reproducing apparatus
App 20040005481 - Osawa, Hiroshi
2004-01-08
Ejecting device
App 20030223323 - Osawa, Hiroshi
2003-12-04
Magnetic recording medium, production process thereof, and magnetic recording and reproducing apparatus
App 20030104253 - Osawa, Hiroshi ;   et al.
2003-06-05
Robot and control method for controlling the robot's motions
App 20030088336 - Osawa, Hiroshi
2003-05-08
Gas Supply Path Structure, Gas Supply Method, Laser Oscillating Apparatus, Exposure Apparatus, And Device Production Method
App 20030058912 - OHMI, TADAHIRO ;   et al.
2003-03-27
Robot and control method for controlling the robot's emotions
Grant 6,519,506 - Osawa February 11, 2
2003-02-11
Robot and control method for entertainment
Grant 6,512,965 - Osawa January 28, 2
2003-01-28
Exposure apparatus, and device production method
App 20020071467 - Ohmi, Tadahiro ;   et al.
2002-06-13
Robot and control method
App 20020052672 - Osawa, Hiroshi
2002-05-02
Robot and control method
App 20020049515 - Osawa, Hiroshi
2002-04-25
Toy
Grant D452,889 - Kawakita , et al. January 8, 2
2002-01-08
Toy
Grant D431,270 - Kawakita , et al. September 26, 2
2000-09-26
X-ray mask and X-ray exposure method using the same
Grant 6,101,237 - Miyachi , et al. August 8, 2
2000-08-08
Positional deviation measuring device and method for measuring the positional deviation between a plurality of diffraction gratings formed on the same object
Grant 5,751,426 - Nose , et al. May 12, 1
1998-05-12
Position detecting system
Grant 5,726,758 - Hasegawa , et al. March 10, 1
1998-03-10
Position detecting apparatus and a method for manufacturing semiconductor devices using the apparatus
Grant 5,717,492 - Sentoku , et al. February 10, 1
1998-02-10
Wavelength compensator in a helium ambience
Grant 5,483,343 - Iwamoto , et al. January 9, 1
1996-01-09
Phase shift device and laser apparatus utilizing the same
Grant 5,477,554 - Yoshii , et al. December 19, 1
1995-12-19
Automobile
Grant D357,648 - Osawa , et al. April 25, 1
1995-04-25
Integrated optical head
Grant 4,887,255 - Handa , et al. December 12, 1
1989-12-12
Optical head device with diffraction grating for separating a light beam incident on an optical recording medium from a light beam reflected therefrom
Grant 4,733,065 - Hoshi , et al. March 22, 1
1988-03-22
Keyswitch structure
Grant 4,570,039 - Osawa , et al. February 11, 1
1986-02-11

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