Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7063194 | Rotation transmission device | Tatsuya Yamasaki, Koichi Okada, Yoshitaka Nagano | 2006-06-20 |
| 6543592 | One-way clutch | — | 2003-04-08 |
| 6409000 | Two-way clutch and rotation transmission device | Kenichiro Itoh | 2002-06-25 |
| 6082935 | Solid cemented carbide ball nose end mill | — | 2000-07-04 |
| 6076420 | Power transmission changeover devices for four-wheel drive vehicles | Kenichiro Ito, Koji Akiyoshi | 2000-06-20 |
| 5967279 | Hub clutch assembly | Kenichiro Itoh, Takayuki Norimatsu, Katsuhisa Suzuki, Kenro Adachi, Koji Akiyoshi | 1999-10-19 |
| 5871072 | Hub clutch assembly | Kenichiro Itoh, Takayuki Norimatsu, Katsuhisa Suzuki, Kenro Adachi, Koji Akiyoshi | 1999-02-16 |
| 5799749 | Rotation transmission device for connecting and disconnecting the transmission of driving force | Ken Yamamoto, Kenichiro Itoh, Kohji Akiyoshi | 1998-09-01 |
| 5732807 | Power transmission device | Kenichiro Itoh, Ken Yamamoto | 1998-03-31 |
| 5529158 | Hub clutch device | Kenichiro Itoh | 1996-06-25 |
| 5234385 | Belt tension adjusting device | Kazuki Kawashima, Tomoyoshi Izutsu | 1993-08-10 |
| 5186689 | Autotensioner | Ken Yamamoto, Kazufumi Nakagawa | 1993-02-16 |
| 4629946 | Neon sign control device | Shintetsu Amano, Hajime Okada, Teruyuki Yakuda, Yoshinori Mizuhata | 1986-12-16 |