TH

Takashi Hayakawa

Sharp Kabushiki Kaisha: 29 patents #476 of 10,731Top 5%
TL Tokyo Electron Limited: 8 patents #950 of 5,567Top 20%
CL Cable Television Laboratories: 3 patents #117 of 243Top 50%
IC Idemitsu Kosan Co.: 2 patents #509 of 1,237Top 45%
Canon: 2 patents #12,681 of 19,416Top 70%
TI Texas Instruments: 2 patents #5,248 of 12,488Top 45%
NI Nec Solution Innovators: 1 patents #69 of 178Top 40%
SE Seiko Epson: 1 patents #5,551 of 7,774Top 75%
SS Sumitomo Wiring Systems: 1 patents #1,603 of 2,615Top 65%
AK Asahi Kasei Kabushiki Kaisha: 1 patents #556 of 1,220Top 50%
GL Gunze Limited: 1 patents #132 of 349Top 40%
HI Hitachi: 1 patents #17,742 of 28,497Top 65%
HP Hyogo Prefecture: 1 patents #3 of 25Top 15%
AN Anelva: 1 patents #135 of 280Top 50%
KA Kaneka: 1 patents #886 of 1,525Top 60%
📍 Tokyo, CO: #5 of 23 inventorsTop 25%
Overall (All Time): #42,243 of 4,157,543Top 2%
57
Patents All Time

Issued Patents All Time

Showing 26–50 of 57 patents

Patent #TitleCo-InventorsDate
5804479 Method for forming semiconductor integrated circuit device having a capacitor Hideo Aoki, Jun Murata, Yoshitaka Tadaki, Toshihiro Sekiguchi, Keizo Kawakita +9 more 1998-09-08
5754925 Imaging forming apparatus with enhanced cleaning of residual matter using a developing/cleaning device Yuhi Yui, Katsumi Adachi, Eiichi Kido, Koichi Moriyama, Toyokazu Mori 1998-05-19
5708929 Contact charging image forming apparatus having improved image transfer Katsumi Adachi 1998-01-13
5689778 Image forming apparatus Katsumi Adachi 1997-11-18
5602659 Liquid crystal light valve with photoconductor including light absorbing and light blocking layers of non-alloy amorphous silicon Katsumi Adachi, Shiro Narikawa 1997-02-11
5592263 Charging device Katsumi Adachi, Shiro Narikawa, Yukihito Nishio, Hirofumi Yanagizawa, Takumi Sakamoto +1 more 1997-01-07
5563691 Image-forming apparatus Katsumi Adachi, Yuhi Yui 1996-10-08
5555079 Image forming apparatus for preventing damage to conductive fibers on a charging member Katsumi Adachi 1996-09-10
5426488 Method of charging a built-in electrophotographic charge member Kenji Tani, Katsumi Adachi 1995-06-20
5398102 Electrophotographic copier and charging means used therefor Takasumi Wada, Kenji Tani, Kouichi Irihara, Yukihito Nishio 1995-03-14
5338582 Photoconductor coupled liquid crystal light valve 1994-08-16
5324549 Method of fabricating photoconductor coupled liquid crystal light valve Shiro Narikawa, Katsumi Adachi, Akitsugu Hatano 1994-06-28
5245059 Method for the preparation of 2,3,5-trimethylbenzoquinone Masao Shimizu, Katsuomi Takehira, Hideo Orita 1993-09-14
5239397 Liquid crystal light valve with amorphous silicon photoconductor of amorphous silicon and hydrogen or a halogen Shiro Narikawa, Kunio Ohashi 1993-08-24
D334337 Wire binder Takayoshi Ito 1993-03-30
5164281 Photosensitive body for electrophotography containing amorphous silicon layers Shoichi Nagata, Shiro Narukawa, Kazuki Wakita, Kunio Ohashi, Yoshikazu Fujiwara 1992-11-17
5126499 Process for the production of hydrocarbons with two or more carbon atoms from methane Katsuomi Takehira, Hideo Orita, Masao Shimizu, Yoshihito Watanabe 1992-06-30
5100749 Photosensitive member for electrophotography Shiro Narikawa, Kunio Ohashi 1992-03-31
5085968 Amorphous, layered, photosensitive member for electrophotography and ECR process Shiro Narikawa, Kunio Ohashi 1992-02-04
5057391 Photosensitive member for electrophotography and process for making using electron cyclotron resonance Shiro Narikawa, Kunio Ohashi, Yoshiharu Tsujimoto 1991-10-15
5009977 Photosensitive member for electrophotography having amorphous silicon Shiro Narikawa, Kunio Ohashi, Yoshiharu Tsujimoto 1991-04-23
4994855 Electrophotographic image formation apparatus with two bias voltage sources Kunio Ohashi, Yoshikazy Fujiwara, Shiro Narikawa, Shoichi Nagata, Kazuki Wakita 1991-02-19
4992348 Electrophotographic photosensitive member comprising amorphous silicon Shiro Narikawa, Kunio Ohashi 1991-02-12
4990423 Photosensitive member for electrophotography Shiro Narikawa, Kunio Ohashi 1991-02-05
4971878 Amorphous silicon photosensitive member for use in electrophotography Shiro Narikawa, Kunio Ohashi 1990-11-20