Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4578422 | Acetal resin composition | Masanori Sakurai, Junichi Miyawaki, Toshikaju Umemura, Shinji Kiboshi | 1986-03-25 |
| 4506053 | Acetal resin composition | Masanori Sakurai, Junichi Miyawaki, Toshikazu Umemura, Shinzi Kiboshi, Akiyoshi Shibata | 1985-03-19 |