Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7014021 | Fluid coupling | Katsumi Kimura, Kazuo Hattori, Hiroshi Ogata, Kazuhiko Sugiyama | 2006-03-21 |
| 6725657 | Power transmission device | Katsumi Kimura, Kazuo Hattori, Hiroshi Ogata, Michio Otsuka, Kazuhiko Sugiyama | 2004-04-27 |