Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5700551 | Layered film made of ultrafine particles and a hard composite material for tools possessing the film | Tetsuo Nakai, Mitsuhiro Goto, Takashi Yoshioka, Makoto Setoyama | 1997-12-23 |