Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4366290 | Unsaturated polyester resin composition | Masaharu Nakayama | 1982-12-28 |
| 4315997 | Styrene resin-block copolymer composition | Masaharu Nakayama, Masaru Matsushima | 1982-02-16 |