Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5274000 | Benzofuran and benzothiophene derivatives, anti-hyperuricemia agents | Tsuyoshi Tomiyama, Akira Tomiyama | 1993-12-28 |
| 5180402 | Dyed synthetic fiber comprising silver-substituted zeolite and copper compound, and process for preparing same | Tetsuya Katoh, Masayuki Hirata, Kazuya Hayashi | 1993-01-19 |
| 5175184 | Benzothiophene derivatives and antihyperuricemia thereof | Tsuyoshi Tomiyama, Akira Tomiyama | 1992-12-29 |
| 5004750 | Benzofuran and benzothoiphene derivatives, of tetrazole and anti-hyperuricemia use thereof | Tsuyoshi Tomiyama, Akira Tomiyama | 1991-04-02 |
| 4987030 | High-tenacity conjugated fiber and process for preparation thereof | Isoo Saito, Takuji Sato, Masaharu Yamamoto | 1991-01-22 |
| 4797415 | Benzofuran derivatives and use thereof for treating hyperuricemia | Tsuyoshi Tomiyama, Akira Tomiyama | 1989-01-10 |