Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6991522 | Method of manufacturing asymmetric gear, asymmetric gear, non-circular and asymmetric gear, gear mechanism, and barrel finishing machine | Takehiro Otsubo, Katsuyuki Nakayama, Kazuaki Sakai | 2006-01-31 |