Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5325634 | Hourglass worm gear | Tohru Kobayashi, Tsunetoshi Sonohara, Hiroshi Kawada, Shigeyuki Shimachi, Hiroshi Gunbara | 1994-07-05 |
| 5235786 | Hourglass worm gear | Tohru Kobayashi, Tsunetoshi Sonohara, Hiroshi Kawada, Shigeyuki Shimachi, Hiroshi Gunbara | 1993-08-17 |