Issued Patents All Time
Showing 26–50 of 60 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7556003 | Engine valve operating system | Katsunori Nakamura, Akiyuki Yonekawa | 2009-07-07 |
| 7523727 | Engine | Katsunori Nakamura, Akiyuki Yonekawa | 2009-04-28 |
| 7503295 | Engine valve operating system | Katsunori Nakamura, Akiyuki Yonekawa | 2009-03-17 |
| 7493879 | Engine valve operating system | Keiko Yoshida, Tomoya Fujimoto | 2009-02-24 |
| 7469668 | Valve-moving device for engine | Akiyuki Yonekawa, Katsunori Nakamura | 2008-12-30 |
| 7467610 | Valve-operating system for internal combustion engine | Keiko Yoshida, Tomoya Fujimoto | 2008-12-23 |
| 7444966 | Valve moving device for engine | Akiyuki Yonekawa, Katsunori Nakamura | 2008-11-04 |
| 7431000 | Valve-actuating for internal combustion engine | Hiromu Nakamura, Junichi Iwamoto | 2008-10-07 |
| 7363892 | Engine valve operating system | Akiyuki Yonekawa, Katsunori Nakamura, Kazunari Kaneshima, Yousuke Kohara, Tomoya Fujimoto +2 more | 2008-04-29 |
| 7341034 | Hydraulic tappet | Katsunori Nakamura, Mineko Nakamura | 2008-03-11 |
| 7104230 | Drive of variable valve lift mechanism | Hisao Sakai, Tadaharu Shoji, Motohiro Maruyama, Tomoya Fujimoto, Akiyuki Yonekawa +2 more | 2006-09-12 |
| 7089903 | Vibration control arrangement for internal combustion engines | Akiyuki Yonekawa, Katsunori Nakamura, Keiko Yoshida, Masaki Nagakura, Tomoya Fujimoto | 2006-08-15 |
| 6968819 | Variable valve actuating device | Katsunori Nakamura, Keiko Yoshida, Hisao Sakai, Tadaharu Shoji, Motohiro Maruyama | 2005-11-29 |
| 6705616 | Piston ring device in internal combustion engine | Kinya Fujii, Kazuyuki Seko | 2004-03-16 |
| 6505593 | Valve spring set load changing device in a valve moving apparatus of an internal combustion engine | — | 2003-01-14 |
| 6425359 | Valve moving apparatus of an internal combustion engine | Hiromu Nakamura, Yuji Matsumochi, Junichi Iwamoto | 2002-07-30 |
| 6327853 | Structure for introducing secondary air into exhaust path of internal combustion engine | Kouta Yoshiura | 2001-12-11 |
| 6289859 | V-shaped internal combustion engine | Kouta Yoshiura | 2001-09-18 |
| 6279554 | Engine crankcase ventilation system including a blowby gas passage defined between crankcase members | Takehiko Sayama, Kazuhiro Akima | 2001-08-28 |
| 6276320 | Value mechanism of internal combustion engine | Kouta Yoshiura | 2001-08-21 |
| 6257188 | Structure for mounting cylinder head cover of internal combustion engine | Kouta Yoshiura | 2001-07-10 |
| 6237719 | Lubricating oil discharge system | Kouta Yoshiura | 2001-05-29 |
| 5987973 | Rotation detecting device of an engine | Mamoru Kosuge, Taketoshi Satoh | 1999-11-23 |
| 5948973 | Engine-rotation detecting system | Toshiyuki Sato, Mamoru Kosuge | 1999-09-07 |
| 5495832 | Valve operating device for internal combustion engine | Ichirou Ohmura | 1996-03-05 |