Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7198025 | In-cylinder injection type spark-ignition internal combustion engine | Joji Matsubara, Kazuyoshi Nakane | 2007-04-03 |
| 6539916 | Fuel injection timing control system for direct injection type internal combustion engine and method for the same | Katsunori Ueda, Masayuki Takagaki, Jun Aoki, Joji Matsubara | 2003-04-01 |