Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5675201 | Composite bearing structure | Osamu Komura, Tetsuya Katayama, Akira Yamakawa, Kenji Matsunuma, Norio Yasuoka +1 more | 1997-10-07 |
| 5631200 | Sintered silicon nitride-based body | Harutoshi Ukegawa | 1997-05-20 |