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 1–25 of 39 patents

Patent #TitleCo-InventorsDate
9117778 Display device Hiroto Yanagawa 2015-08-25
RE41237 Active matrix type display apparatus, method for driving the same, and display element Yukio Tanaka, Masanori Kimura, Kazunori Komori 2010-04-20
7499115 Display and its driving method Hiroyuki Yamakita, Masanori Kimura, Akio Takimoto 2009-03-03
7215476 Optical pickup, optical information recording/reproducing apparatus using the same, and phase variable wave plate used in the pickup and the apparatus Yasuo Kitaoka, Ken'ichi Kasazumi, Kazuhisa Yamamoto, Hidenori Wada 2007-05-08
7173609 Image display apparatus and image display method Ichiro Sato, Kazuo Inoue, Taro Funamoto, Wataru Machidori, Katsuyuki Arimoto 2007-02-06
7161574 Liquid crystal display element driving method and liquid crystal display using the same Masanori Kimura, Ichiro Sato 2007-01-09
7034790 Liquid crystal display drive method and liquid crystal display Tetsuo Fukami, Kenji Nakao 2006-04-25
7035192 Optical pickup, optical information recording/reproducing apparatus using the same, and phase variable wave plate used in the pickup and the apparatus Yasuo Kitaoka, Ken'ichi Kasazumi, Kazuhisa Yamamoto, Hidenori Wada 2006-04-25
7030848 Liquid crystal display Ichiro Sato, Hiroyuki Yamakita, Kazunori Komori 2006-04-18
6965367 Display Yukio Tanaka, Masanori Kimura, Takashi Okada 2005-11-15
6963335 Active matrix type display apparatus method for driving the same, and display element Yukio Tanaka, Masanori Kimura, Kazunori Komori 2005-11-08
6933916 Liquid crystal display and its driving method Kenji Nakao, Daiichi Suzuki, Yoshinori Kobayashi, Katsuyuki Arimoto, Ichiro Sato +6 more 2005-08-23
6914644 Liquid crystal device Tetsuo Fukami, Masanori Kimura, Satoshi Asada, Yoneharu Takubo 2005-07-05
6909415 Display unit and drive method therefor Masanori Kimura, Tetsuo Fukami, Akio Takimoto, Yukio Tanaka, Kazunori Komori 2005-06-21
6906769 Liquid crystal screen display Ichiro Sato, Kazuo Inoue, Kazuhiro Nishiyama 2005-06-14
6900852 Active matrix liquid crystal display element Takashi Okada, Yukio Tanaka, Masanori Kimura 2005-05-31
6896940 Liquid crystal screen display Ichiro Sato, Kazuo Inoue, Kazuhiro Nishiyama 2005-05-24
6850303 Liquid crystal display device having additional storage capacitance Masanori Kimura, Tetsuo Fukami, Hiroyuki Yamakita, Satoshi Asada 2005-02-01
6850309 Liquid crystal display device with a plurality of projections having different heights and process for manufacturing the same Kazuo Inoue, Akio Takimoto 2005-02-01
6819646 Optical pickup, optical information recording/reproducing apparatus using the same, and phase variable wave plate used in the pickup and the apparatus Yasuo Kitaoka, Ken'ichi Kasazumi, Kazuhisa Yamamoto, Hidenori Wada 2004-11-16
6816208 Liquid crystal display device Tetsuo Fukami, Masanori Kimura 2004-11-09
6801264 Liquid crystal display device Masanori Kimura, Tetsuo Fukami 2004-10-05
6801293 Method for manufacturing an in-plane electric field mode liquid crystal element Kazuhiro Nishiyama, Junko Asayama, Kazunori Komori, Yukio Tanaka, Akio Takimoto +6 more 2004-10-05
6787829 LCD panel Tetsuo Fukami, Hiroyuki Yamakita, Masanori Kimura, Michiko Okafuji, Satoshi Asada 2004-09-07
6781659 Liquid crystal display device, pixels repair method thereof, and drive method thereof Akinori Shiota, Hiroyuki Yamakita, Sadayoshi Hotta, Yoneharu Takubo 2004-08-24