Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4621123 | Phosphinylmethyl polypenols and polyglycidyl ethers thereof | Hisao Takagishi, Kunimasa Kamio, Khoichi Okuno | 1986-11-04 |
| 4237035 | Epoxy resin from by-product tar from resorcinol process and use thereof | Shuichi Kanagawa, Akira Shintani | 1980-12-02 |