Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11598505 | Vehicular lamp fitting | Haruki Igawa | 2023-03-07 |
| 6672050 | Exhaust gas purification device of an engine | Hiroki Murata, Toshio Suematsu, Shizuo Sasaki, Shinya Hirota, Kazuhiro Itoh +5 more | 2004-01-06 |
| 6672989 | Direct injection type engine | Hiroki Murata, Shizuo Sasaki | 2004-01-06 |
| 6581372 | Compression ignition type engine | Shizuo Sasaki, Hiroki Murata | 2003-06-24 |
| 6516609 | Compression ignition type engine | Shizuo Sasaki, Hiroki Murata | 2003-02-11 |
| 6467466 | Gas leakage detection and fail-safe control method for gas-fueled internal combustion engine and apparatus for implementing the same | Masahiro Maekawa, Takahiro Aki, Hiroki Matsuoka | 2002-10-22 |
| 6349540 | Catalyst deterioration determining apparatus for internal combustion engine, and control method for the apparatus | Shigeki Nakayama, Hiroki Matsuoka, Hiroshi Suwahara | 2002-02-26 |
| 6240910 | Fuel injection control system for compressed natural gas-fueled automotive vehicle | Masahiro Maekawa, Hiroki Matsuoka, John Stephen Viggers | 2001-06-05 |
| 4881368 | Double air-fuel ratio sensor system having improved exhaust emission characteristics | Takayuki Demura | 1989-11-21 |
| 4604700 | Apparatus for indicating an optimum time to shift a manual transmission installed in a vehicle | Kazuo Tomita | 1986-08-05 |
| 4202173 | Secondary air supplying device of an internal combustion engine | Nobuaki Wakita | 1980-05-13 |