Issued Patents 1989
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889853 | Hydroquinonlyphenyl butyric acid amide derivative | Toshio Tatsuoka, Fumio Satoh, Seiji Miyano, Kunihiro Sumoto | 1989-12-26 |
| 4870581 | Electronically controlled automatic transmission | Yasunobu Ito, Miki Nobuaki | 1989-09-26 |
| 4866475 | Simulator for automatic photographic printers | — | 1989-09-12 |
| 4865948 | Optical recording material, process for preparing the same and optical recording method | Tsuyoshi Masumoto, Mika Okubo, Akira Matsumoto, Nobuhiro Ota, Shuji Masuda | 1989-09-12 |
| 4858499 | Automatic transmission with lock-up clutch | Yasunobu Ito | 1989-08-22 |
| 4857168 | Method for hydrocracking heavy fraction oil | Junichi Kubo | 1989-08-15 |
| 4837130 | Optical disk manufacturing method | Minemasa Ohta, Satoru Fukuoka, Toshihiko Takishita, Tuyoshi Hayashi | 1989-06-06 |
| 4837711 | Method for detecting/processing image information | — | 1989-06-06 |
| 4835069 | Magnetic recording medium | Takeshi Sawada, Akira Shinmi, Hiroshi Takagi, Fumio Kishi, Susumu Kozuki | 1989-05-30 |
| 4816351 | Magnetic recording medium | Hiroshi Takagi, Morimi Hashimoto | 1989-03-28 |
| 4812879 | Automatic photographic printing apparatus with simulator and method of adjusting simulator of automatic photographic printing apparatus | — | 1989-03-14 |
| 4809061 | Image readout method and apparatus | — | 1989-02-28 |
| 4806265 | Amorphous ferromagnetic oxides | Tsuyoshi Masumoto, Nobuhiro Ota, Mika Okubo, Masao Mitera, Akira Matsumoto +1 more | 1989-02-21 |
| 4803653 | Memory control system | Toshiyuki Takagi, Tomoya Nishi | 1989-02-07 |
| 4797400 | Piperazine compounds and anti-ulcer composition containing the same | Hiroshi Ohtaka, Kenji Yoshida, Koichi Shimohara, Sigeru Tajima, Keizo Ito | 1989-01-10 |