Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6159614 | Polypropylene resin composition | Yutaka Azuma, Satoshi Tamura, Tsunenosuke Hiramatsu, Keigo Umemoto, Masamichi Kondo | 2000-12-12 |
| 5955524 | Polypropylene resin composition | Yutaka Azuma, Satoshi Tamura, Tsunenosuke Hiramatsu, Keigo Umemoto, Masamichi Kondo | 1999-09-21 |
| 5556980 | Piperidine compound, a process for producing the same and a stabilizer using the same | Seiji Sagawa, Motohiko Samizo, Fumitoshi Kojima, Tetsuo Yamaguchi | 1996-09-17 |
| 5182390 | Isocyanuric acid derivative useful as a light stabilizer | Seiji Sagawa, Shinichi Yachigo, Kanako Ida | 1993-01-26 |
| 4703059 | Tris(beta,beta-dimethylphenethyl) tin compounds | Masamichi Knodo, Tatsufumi Ikeda, Chiharu Morikawa | 1987-10-27 |