Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4721744 | Stabilized polyurethane compositions | Tamaki Ishii, Shinichi Yachigo, Haruki Okamura, Masahisa Shionoya | 1988-01-26 |
| 4721792 | "N,N',N"",N'""-tetrakis(substituted benzyl)-acetylenecarbamide derivatives" | Chinehito Ebina, Haruki Okamura, Shinichi Yachigo, Tamaki Ishii | 1988-01-26 |
| 4719257 | Polyolefin resin composition | Tamaki Ishii, Shinichi Yachigo, Haruki Okamura, Masahisa Shionoya | 1988-01-12 |
| 4717745 | Stabilized polyacetal resin compositions | Tamaki Ishii, Shinichi Yachigo, Haruki Okamura, Masahisa Shionoya | 1988-01-05 |
| 4603159 | Phenolic compounds and stabilizers containing the same | Tamaki Ishii, Shinichi Yachigo, Haruki Okamura, Masahisa Shinoya | 1986-07-29 |
| 4576734 | Stabilizer for synthetic resins | Tamaki Ishii, Shinichi Yachigo, Masahisa Shionoya, Haruki Okamura | 1986-03-18 |