Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871624 | Magnetic scale and method of manufacturing the same | — | 1989-10-03 |
| 4854370 | Die casting apparatus | — | 1989-08-08 |
| 4829683 | Articles of clothing for use in clean rooms | Yoshihiro Chikamori, Ayako Ariyoshi, Norie Sugimoto | 1989-05-16 |