HT

Hiroshi Takahashi

Fujitsu Limited: 4 patents #114 of 1,515Top 8%
Nissan Motor Co.: 3 patents #19 of 487Top 4%
HC Hitachi Chemical Company: 1 patents #8 of 61Top 15%
KT Kabushiki Kaisha Toshiba: 1 patents #376 of 1,409Top 30%
NC Nippon Soda Co.: 1 patents #1 of 16Top 7%
AN Anritsu: 1 patents #12 of 38Top 35%
SI Seiko Instruments: 1 patents #7 of 65Top 15%
HC Hakko Electric Machine Works Co.: 1 patents #1 of 5Top 20%
📍 Yokohama, NJ: #1 of 4 inventorsTop 25%
Overall (1989): #104 of 140,708Top 1%
15
Patents 1989

Issued Patents 1989

Showing 1–15 of 15 patents

Patent #TitleCo-InventorsDate
4887575 System and method for controlling a mixture ratio of air-fuel mixture supplied to an internal combustion engine 1989-12-19
4885490 Non-contact positioning device Kenichi Takahara 1989-12-05
4874686 Photosensitive lithographic plate necessitating no dampening water Yoshihiko Urabe, Tatsuji Higashi, Nobuyuki Kita 1989-10-17
4869857 Process for producing porous membranes Hajime Itoh, Kouji Ohbori, Hideaki Habara 1989-09-26
4863831 Photosensitive lithographic plate requiring no dampening water having a gelatin primer layer Toshihiko Hiruma 1989-09-05
4861698 Photosensitive lithographic plate using no dampening water Toshihiko Hiruma, Norihiko Kato 1989-08-29
4849714 Signal generating apparatus Hitoshi Nishiyama 1989-07-18
4846799 Set of double needles for injecting liquid medicine Masataka Tanaka, Masao Ohto, Tetsuo Sekine, Masaru Maruyama 1989-07-11
4841815 Fuzzy control system for automatic transmission 1989-06-27
4842342 Antiskid brake control system based on fuzzy inference Yasuki Ishikawa 1989-06-27
4838842 Pulley in which ceramic particles are exposed on the surface Ichizo Ohkata 1989-06-13
4837086 Adhesive clad insulating substrate used for producing printed circuit boards Naohiro Morozumi, Shin Takanezawa, Kiyoshi Nakao 1989-06-06
4826752 Dry photosensitive lithographic plate comprising a silicon rubber layer containing an aromatic aminosilane Susumu Yoshida, Hisashi Aoki, Kiyohiro Kondow, Tetsuya Mayuzumi 1989-05-02
4816367 Multicolor imaging material Hiromichi Sakojiri 1989-03-28
4816536 Polymers of 3,4-substituted pyrrole compounds and their preparation method Takeo Shimizu, Takehira Kaneko, Tomoyuki Inoue 1989-03-28