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Masaaki Kitajima — 42 Patents

Hitachi: 40 patents #499 of 28,497Top 2%
HCHitachi Device Engineering Co.: 4 patents #116 of 514Top 25%
HSHitachi Haramachi Semi-Conductor: 3 patents #4 of 40Top 10%
Panasonic: 2 patents #9,678 of 21,108Top 50%
Overall (All Time): #73,747 of 4,157,543Top 2%
42 Patents All Time

Issued Patents All Time

Showing 26–42 of 42 patents

Patent #TitleCo-InventorsDate
5677705 Drive method for driving a matrix-addressing display, a drive circuit therefor, and a matrix-addressing display device Masato Shimura, Katsumi Kondo, Hiroshi Kurihara, Tatsuhisa Fujii, Shigeyuki Nishitani 1997-10-14
5638088 Method of driving STN liquid crystal panel and apparatus therefor Hiroyuki Mano, Toshio Tanaka, Shigeyuki Nishitani 1997-06-10
5633659 Display unit having a coordinate input mechanism Tsutomu Furuhashi, Satoru Tsunekawa, Hiroyuki Mano, Shigeyuki Nishitani, Tetsuya Suzuki +3 more 1997-05-27
5561440 Liquid crystal display device and driving method therefor Makoto Tsumura, Yoshiro Mikami, Katsuyuki Funahata, Yoshiharu Nagae, Yoko Wakui +3 more 1996-10-01
5519523 Liquid crystal display device with residual retardation compensated for in liquid crystal layer Hitomi Madokoro, Ikuo Hiyama, Junichi Hirakata, Hidetoshi Abe, Katsumi Kondo +4 more 1996-05-21
5477355 Process for producing the passivation layer of an active matrix substrate by back exposure Tohru Sasaki, Makoto Tsumura, Masaru Takabatake 1995-12-19
5475396 Display system Takashi Suzuki 1995-12-12
5337070 Display and the method of driving the same Ikuo Hiyama, Yoshiharu Nagae 1994-08-09
5301047 Liquid crystal display Minoru Hoshino, Yoshiharu Nagae, Masahiro Takasaka, Kiyoshige Kinugawa 1994-04-05
5091722 Gray scale display Jun-ichi Ohwada, Yoshiharu Nagae 1992-02-25
5021774 Method and circuit for scanning capacitive loads Jun-ichi Ohwada, Masayoshi Suzuki, Masaru Takabatake, Yoshiharu Nagae 1991-06-04
4736137 Matrix display device Jun-ichi Ohwada, Hideaki Kawakami 1988-04-05
4733370 Information holding device Hideaki Kawakami, Yoshiharu Nagae, Masahiro Takasaka 1988-03-22
4719457 Information input/output display device Masahiro Takasaka, Yoshiharu Nagae 1988-01-12
4400059 Liquid crystal display device Yoshiharu Nagae, Tetsuo Ito, Hideaki Kawakami, Fumio Nakano, Hidetoshi Abe +3 more 1983-08-23
4395709 Driving device and method for matrix-type display panel using guest-host type phase transition liquid crystal Yoshiharu Nagae, Hideaki Kawakami 1983-07-26
4317115 Driving device for matrix-type display panel using guest-host type phase transition liquid crystal Hideaki Kawakami, Naoyuki Izaki, Yoshiharu Nagae 1982-02-23