Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5225526 | Stabilized aromatic polycarbonate composition and process for producing same | Isaburo Fukawa, Hiroshi Hachiya | 1993-07-06 |
| 4804735 | Crystalline aromatic polyketone copolymer produced from 4-mercaptophenol, dihaloterephtalophenone, and hydroquinone or dihydroxybenzophenone | Isaburo Fukawa | 1989-02-14 |
| 4772679 | Crystalline aromatic polyketone and process for producing the same | Isaburo Fukawa, Hisaya Sakurai | 1988-09-20 |
| 4451573 | Catalyst for polymerization of olefins | Tadashi Ikegami, Katsuhiko Takaya | 1984-05-29 |
| 4330650 | Catalyst for polymerization of olefins | Hisaya Sakurai, Hideo Morita, Masayoshi Miya, Katsuhiko Takaya | 1982-05-18 |
| 4312783 | Catalyst for polymerization of olefins | Hisaya Sakurai, Masayoshi Miya, Katsuhiko Takaya | 1982-01-26 |
| 4255280 | Catalyst for polymerization of olefins | Hisaya Sakurai, Hideo Morita, Masayoshi Miya, Katsuhiko Takaya | 1981-03-10 |