Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7771281 | Gear coupling | Hideo Terasawa, Hidenari Akagi | 2010-08-10 |
| 6093106 | Flexible coupling | — | 2000-07-25 |
| 5911630 | Flexible gear coupling | — | 1999-06-15 |
| 5679076 | Flexible gear coupling | — | 1997-10-21 |
| 5537889 | Gear device having tooth profile improved in reducing local frictional heat value and method of producing such a gear device | Aizoh Kubo | 1996-07-23 |
| 5222406 | Gear drive device for railway motor car | — | 1993-06-29 |
| 4750680 | Vertically controlled track sander | Noriyuki Isoda, Nobuyoshi Takahashi | 1988-06-14 |
| 4747627 | Apparatus for improving adhesion of a railway vehicle | Nobuyoshi Takahashi, Noriyuki Isoda | 1988-05-31 |
| 4709194 | Method of controlling the mode of driving electric vehicles | Shigeichi Yagi | 1987-11-24 |