Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4804720 | Polyamide resin composition | Mitsuhiko Tamura, Masaaki Miyamoto, Masaya Ueda | 1989-02-14 |
| 4795781 | Resin composition of a saponified ethylene vinyl acetate copolymer and a polyamide resin | Masaaki Miyamoto, Hiroshi Takida | 1989-01-03 |