Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4721744 | Stabilized polyurethane compositions | Tamaki Ishii, Shinichi Yachigo, Manji Sasaki, Haruki Okamura | 1988-01-26 |
| 4719257 | Polyolefin resin composition | Tamaki Ishii, Shinichi Yachigo, Manji Sasaki, Haruki Okamura | 1988-01-12 |
| 4717745 | Stabilized polyacetal resin compositions | Tamaki Ishii, Shinichi Yachigo, Manji Sasaki, Haruki Okamura | 1988-01-05 |
| 4578410 | Piperidine derivatives, their production and stabilized polymer compositions containing same | Yukoh Takahashi, Takeo Fujii, Shinichi Yachigo, Tamaki Ishii | 1986-03-25 |
| 4576734 | Stabilizer for synthetic resins | Tamaki Ishii, Shinichi Yachigo, Manji Sasaki, Haruki Okamura | 1986-03-18 |