Issued Patents 1989
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |