Issued Patents All Time
Showing 51–55 of 55 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4958001 | Dicyclohexyl-3,4,3',4'-tetracarboxylic acid or dianhydride thereof and polyamide-acid and polyimide obtained therefrom | Tohru Kikuchi, Takayuki Saito, Mitsumasa Kojima, Hidetaka Sato, Hiroshi Suzuki | 1990-09-18 |
| 4916255 | Method for production of methacrylate ester | Akihiro Kobayashi, Takayuki Saito, Toshio Akima | 1990-04-10 |
| 4912233 | Para- or meta-terphenyltetracarboxylic acid, dianhydride thereof and process for preparing the same | Tohru Kikuchi, Takayuki Saito | 1990-03-27 |
| 4868261 | Optical resin material | Akihiro Kobayashi, Takayuki Saito, Hiromasa Kawai, Yutaka Hosoi, Hideaki Shibata | 1989-09-19 |
| 4686166 | Electrophoto toner comprising imido group monomer unit in polymer | Yuugo Kumagai, Isamu Moribe, Takayuki Saito, Akihiro Kobayashi | 1987-08-11 |