Issued Patents All Time
Showing 26–42 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6170445 | Electromagnetic actuating system of internal combustion engine | Hiroyuki Hattori, Tatsuo Iida, Masahiko Asano | 2001-01-09 |
| 6125803 | Electromagnetically driven valve for an internal combustion engine | Hiroyuki Hattori, Tatsuo Iida, Masahiko Asano, Yoshinori Kadowaki, Akihiro Yanai +1 more | 2000-10-03 |
| 6089196 | Cylinder head having a solenoid valve control device for operating a valve of an internal combustion engine | Tatsuo Iida, Masahiko Asano | 2000-07-18 |
| 6032925 | Gel cushioned solenoid valve device | Shoichiro Nitta, Tatsuo Iida, Masahiko Asano, Hiroyuki Hattori | 2000-03-07 |
| 5992153 | Power unit for a vehicle | Yasunori Tsuchihashi | 1999-11-30 |
| 5915347 | Valve driving apparatus using an electromagnetic coil to move a valve body with reduced noise | Akihiro Yanai, Iwao Maeda, Tatuo Iida | 1999-06-29 |
| 5889405 | Method of detecting fault in electromagnetically-actuated intake or exhaust valve | Akihiro Yanai | 1999-03-30 |
| 5875746 | Cylinder head structure for an internal combustion engine | — | 1999-03-02 |
| 5779770 | Magnetic field type oxygen enriched air producing apparatus | Shoichiro Nitta, Kazuhisa Mikame, Shinzo Kobuki, Yozo Ito, Kazuhiro Asayama | 1998-07-14 |
| 5775276 | Valve driving apparatus using an electromagnetic coil to move a valve body with reduced noise | Akihiro Yanai, Iwao Maeda, Tatuo Iida | 1998-07-07 |
| 5720242 | Internal combustion engine equipped with an electromagnetic valve driving apparatus and head structure thereof | — | 1998-02-24 |
| 5690064 | Electromagnetic valve driving apparatus for driving a valve of an internal combustion engine | — | 1997-11-25 |
| 5611303 | Valve operating apparatus of internal combustion engine | — | 1997-03-18 |
| 5537960 | Valve driving apparatus driving a valve apparatus at a high voltage by connecting two power sources in series | Iwao Maeda | 1996-07-23 |
| 5156124 | Fuel injection structure for an internal combustion engine | Tomojiro Sugimoto, Keiso Takeda, Toshiaki Yamamoto | 1992-10-20 |
| 4696379 | Hydraulic buffer | Toshiaki Yamamoto, Hiroyoshi Kako, Takuo Shibata, Hajime Kamimae, Hiroaki Takegawa | 1987-09-29 |
| 4647008 | Solenoid valve for hydraulic control | Hisao Shirai, Takuo Sibata | 1987-03-03 |