Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4363878 | Alkali- and heat-resistant inorganic fiber | Osamu Yamamoto, Yutaka Yasiro | 1982-12-14 |
| 4212697 | Process for producing glass fiber-reinforced resin molded sheets | Osamu Yamamoto, Yoshiki Matsumoto, Hiromi Yamada | 1980-07-15 |