Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8667864 | Power transmission apparatus | Kazuto Kenmotsu, Atsushi Oda, Masayuki Sayama | 2014-03-11 |
| 7990004 | Reduction drive device | Masashi Aikawa, Masayuki Sayama | 2011-08-02 |
| 6719110 | Wet type friction clutch and electromagnetic clutch | Yasuhiko Ishikawa, Makoto Ishizuka, Kouji Iizuka, Yasushi Koshigaya, Yoshiaki Kitsunezuka +2 more | 2004-04-13 |