Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5695198 | Seal containing age resistors for rolling bearing | Akira Iwamoto, Norihiro Edwin Aoki, Kenji Okuma, Takahiko Uchiyama, Toshikazu Yabe | 1997-12-09 |
| 5630668 | Thrust needle-shaped roller bearing, rolling bearing, and cage of the thrust needle-shaped roller bearing | Katsuhiro Ikezawa, Hiroshi Iwasa, Yasuhiro Nomura, Toshiro Kawamura, Hiroshi Narai +5 more | 1997-05-20 |