Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5700551 | Layered film made of ultrafine particles and a hard composite material for tools possessing the film | Satoru Kukino, Tetsuo Nakai, Takashi Yoshioka, Makoto Setoyama | 1997-12-23 |
| 5607582 | Filter system for liquids | Kazuhiko Yamazaki | 1997-03-04 |