Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877687 | Synthetic resin molded article having antistatic property | Kiyotaka Azegami, Suehiro Tayama, Naoki Yamamoto, Akira Yanagase | 1989-10-31 |
| 4859727 | Antistatic thermoplastic resin composition | Isao Sasaki, Naoki Yamamoto, Akira Yanagase | 1989-08-22 |