KK

Katsuhiko Kumagawa

Sumitomo Electric Industries: 36 patents #330 of 21,551Top 2%
PA Panasonic: 2 patents #9,678 of 21,108Top 50%
JO Joled: 1 patents #250 of 392Top 65%
Overall (All Time): #83,277 of 4,157,543Top 3%
39
Patents All Time

Issued Patents All Time

Showing 26–39 of 39 patents

Patent #TitleCo-InventorsDate
6774963 Liquid-crystal display device Kenji Nakao, Tsuyoshi Uemura, Naohide Wakita 2004-08-10
6762816 Liquid crystal display with special electrode configurations and compositions and method for producing the same Hiroyuki Yamakita, Kazuo Inoue, Akinori Shiota, Ichiro Sato, Hiroshi Satani +2 more 2004-07-13
6717628 Liquid crystal display device Masanori Kimura, Tetsuo Fukami 2004-04-06
6697141 Liquid crystal display with opaque common electrodes over the video signal lines and fabrication method thereof Hiroyuki Yamakita, Kazuo Inoue, Akinori Shiota, Ichiro Sato, Hiroshi Satani +2 more 2004-02-24
6633272 Driving method, drive IC and drive circuit for liquid crystal display Akira Kawaji, Masahito Matsunami, Takeshi Okuno, Tohru Suyama 2003-10-14
6597337 Driving method, drive IC and drive circuit for liquid crystal display Akira Kawaji, Masahito Matsunami, Takeshi Okuno, Tohru Suyama 2003-07-22
6583840 Liquid crystal display element with comb electrodes having reflective projections and producing method thereof Kazuo Inoue, Hiroyuki Yamakita, Masanori Kimura, Akinori Shiota 2003-06-24
6525798 Liquid crystal display unit Hiroyuki Yamakita, Akinori Shiota, Ichiro Sato, Akio Takimoto 2003-02-25
6522318 Driving method, drive IC and drive circuit for liquid crystal display Akira Kawaji, Masahito Matsunami, Takeshi Okuno, Tohru Suyama 2003-02-18
6232944 Driving method, drive IC and drive circuit for liquid crystal display Akira Kawaji, Masahito Matsunami, Takeshi Okuno, Tohru Suyama 2001-05-15
5748276 Liquid crystal display unit with a plurality of subpixels Mitsuhiro Uno, Yoneharu Takubo, Satoshi Asada, Naomi Takada 1998-05-05
5610739 Liquid crystal display unit with a plurality of subpixels Mitsuhiro Uno, Yoneharu Takubo, Satoshi Asada, Naomi Takada 1997-03-11
5166817 Liquid crystal display with compensation means of multiaxially elongated high polymer films Isao Ota, Shingo Fujita, Hiroshi Yamazoe, Shigeru Yoshida, Toshio Tatsumichi 1992-11-24
4775549 Method of producing a substrate structure for a large size display panel and an apparatus for producing the substrate structure Isao Ota, Toshio Tatsumichi, Hiroshi Yamazoe, Masahiro Nagasawa 1988-10-04