Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7225794 | Common rail fuel injection system | Keiki Tanabe, Shinji Nakayama | 2007-06-05 |
| 6993908 | Failure detection apparatus for an internal combustion engine | Yoshiyuki Akao | 2006-02-07 |
| 6962145 | Failure detection apparatus for an internal combustion engine | Yoshiyuki Akao | 2005-11-08 |
| 6840224 | Pressure-elevating type fuel injecting system | Keiki Tanabe, Shinji Nakayama | 2005-01-11 |
| 6842690 | Failure detection apparatus for an internal combustion engine | Yoshiyuki Akao | 2005-01-11 |
| 6792919 | Accumulator type fuel injection system | Keiki Tanabe | 2004-09-21 |
| 6792917 | Pressure-elevating type fuel injecting system | Shinji Nakayama, Keiki Tanabe | 2004-09-21 |
| 6708676 | EGR control unit and EGR control method | Yoshiyuki Akao | 2004-03-23 |
| 6694734 | Variable displacement supercharging system and method for detecting abnormality of supercharging system | Yoshiyuki Akao, Youichi Ohgaki | 2004-02-24 |
| 6684856 | Fuel injection apparatus of engine | Keiki Tanabe, Shinji Nakayama | 2004-02-03 |
| 6672279 | Accumulator type fuel injection apparatus | Shinji Nakayama, Keiki Tanabe | 2004-01-06 |
| 6543420 | Accumulator fuel injection system | Keiki Tanabe, Shinji Nakayama | 2003-04-08 |
| 6457453 | Accumulator fuel-injection apparatus | Keiki Tanabe, Seijiro Kotooka | 2002-10-01 |
| 6378498 | Accumulator type fuel injection system | Keiki Tanabe | 2002-04-30 |
| 6363914 | Accumulator fuel injection system | Keiki Tanabe, Seijiro Kotooka | 2002-04-02 |
| 6360714 | Fuel injector | Seijiro Kotooka, Keiki Tanabe | 2002-03-26 |
| 6192862 | Accumulator type fuel injection system | Keiki Tanabe | 2001-02-27 |
| 6092509 | Accumulator type fuel injection system | Keiki Tanabe | 2000-07-25 |
| 5713315 | Multiple step valve opening control system | Hiroshi Jyoutaki, Kazutoshi Mori, Yasunori Daigo, Yoshihisa Yamaki | 1998-02-03 |
| 5099809 | Combustion chamber for a diesel engine | Toru Kawatani, Eiji Mizote, Tomomi Nakagawa, Tetsuo Suzuki, Yoshihisa Yamaki | 1992-03-31 |
| 4825523 | Method for manufacturing a housing | Norio Nakazawa, Yoshimasa Matsura, Tetsuo TAKEMOTO | 1989-05-02 |
| 4794758 | Method of controlling a turbocharger | Norio Nakazawa, Yoshimasa Matsura, Tetsuo TAKEMOTO | 1989-01-03 |
| 4719757 | Variable-volume turbocharger | Norio Nakazawa, Yoshimasa Matsura, Tetsuo TAKEMOTO | 1988-01-19 |