Issued Patents All Time
Showing 26–42 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5977167 | Benzopyran and benzoxazine derivatives | Haruhiko Sato, Takenori Ishizawa, Hiroyuki Nabata | 1999-11-02 |
| 5878194 | Method and device for outputting multicolor document | — | 1999-03-02 |
| 5874446 | Benzopyran derivatives | Haruhiko Sato, Takenori Ishizawa, Hiroyuki Nabata | 1999-02-23 |
| 5658888 | Erythromycin derivatives | Tsutomu Sato, Hisanori Takanashi | 1997-08-19 |
| 5646308 | Benzopyran derivatives | Hiroyuki Nabata | 1997-07-08 |
| 5646310 | N-(2-cyanoethyl)-6-fluoroalkyl-2h-1-benzopyran derivatives | Haruhiko Sato, Takenori Ishizawa | 1997-07-08 |
| 5614633 | Benzopyran derivatives | Haruhiko Sato, Takenori Ishizawa, Hiroyuki Nabata | 1997-03-25 |
| 5412117 | Benzopyran derivatives | Hiroyuki Nabata | 1995-05-02 |
| 5166638 | Differential amplifier having output stage quickly brought into inactive condition by a control signal | — | 1992-11-24 |
| 4816479 | Xanthone derivatives and process for producing the same | Takashi Mori, Takashi Dan, Michitaka Akima | 1989-03-28 |
| 4791209 | Furobenzisoxazole derivatives | Haruhiko Sato, Takashi Dan, Etsuro Onuma | 1988-12-13 |
| 4732906 | Dioxolobenzizoxazole derivatives | Takashi Dan, Haruhiko Sato, Etsuro Onuma | 1988-03-22 |
| 4661607 | Furoxanthone derivatives useful as diuretics | Takashi Mori, Takashi Dan, Michitaka Akima | 1987-04-28 |
| 4641570 | Swash plate type compressor having a center cavity in surface of piston shoe | Kenichiro Futamura, Keiichiro Ohtsu, Tatsuhiko Fukuoka, Kenji Takenaka, Yoshio Itakura | 1987-02-10 |
| 4448962 | Substituted quinoline carboxylic acid derivatives | Tsutomu Irikura, Seigo Suzue, Akira Ito | 1984-05-15 |
| 4429127 | Quinoline carboxylic acid derivative | Tsutomu Irikura, Akira Ito | 1984-01-31 |
| 4398029 | Quinoline carboxylic acid derivatives and process for the preparation | Tsutomu Irikura, Satoshi Murayama | 1983-08-09 |