Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4366239 | Polyester base drafting film with nitrocellulose and polymethylmethacrylate layer | Yukio Shinagawa, Sumio Ohtani, Koichi Suematsu | 1982-12-28 |
| 4319398 | Method of assembling rotor of stepping motor | Koji Fukuzawa | 1982-03-16 |