Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5456136 | Cam follower with roller for use with engine | Yasutaro Yamashita, Kiyohito Nakamura | 1995-10-10 |
| 5064298 | Machine parts having minute random recesses | Kenji Hibi | 1991-11-12 |
| 4893387 | Roller elements for roller bearing | Yoshinobu Akamatsu, Morikatu Kotani, Kenji Hibi, Toshihiko Matsushima | 1990-01-16 |