Issued Patents All Time
Showing 26–41 of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7997241 | Spark ignition type internal combustion engine | Yukihiro Nakasaka, Daisuke Akihisa | 2011-08-16 |
| 7917279 | Method of controlling a mechanical compression ratio, a closing timing of an intake valve and air stream | Daisuke Akihisa | 2011-03-29 |
| 7882821 | Spark ignition type internal combustion engine | Daisuke Akihisa, Daisaku Sawada, Yukihiro Nakasaka | 2011-02-08 |
| 7840335 | Internal combustion engine with variable compression ratio | Daisuke Akihisa, Shigeo Kikori | 2010-11-23 |
| 7806092 | Drive device mounted in vehicle body which includes variable compression ratio internal combustion engine | — | 2010-10-05 |
| 7802543 | Spark ignition type internal combustion engine | Daisuke Akihisa, Daisaku Sawada | 2010-09-28 |
| 7721688 | Variable compression ratio internal combustion engine | — | 2010-05-25 |
| 7627417 | Variable compression ratio internal combustion engine | Daisuke Akihisa | 2009-12-01 |
| 7487747 | Mount apparatus for variable compression ratio internal combustion engine | Masaaki Kashiwa, Daisuke Akihisa | 2009-02-10 |
| 7422004 | Internal combustion engine with variable compression ratio | Daisuke Akihisa, Shigeo Kikori | 2008-09-09 |
| 7278383 | Internal combustion engine with variable compression ratio and valve characteristics | Daisuke Akihisa | 2007-10-09 |
| 7047917 | Variable compression ratio mechanism | Daisuke Akihisa | 2006-05-23 |
| 7036468 | Internal combustion engine with variable compression ratio and compression ratio control method | — | 2006-05-02 |
| 6871626 | Foamed resin oil pan and method of fabrication thereof | Kazushige Ueno | 2005-03-29 |
| 5687690 | Motor vehicle drive device | Tatehito Ueda, Toshio Itoh, Hiroshi Tada, Hideo Nagaosa, Shinichi Sano +2 more | 1997-11-18 |
| 5630387 | Intake manifold | — | 1997-05-20 |