Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7784443 | Spark-ignition gasoline engine | Mitsuo Hitomi, Noriyuki Iwata, Masahisa Yamakawa, Toshiaki Nishimoto, Takayoshi Hayashi | 2010-08-31 |
| 7484498 | Spark-ignition gasoline engine | Mitsuo Hitomi, Noriyuki Iwata, Masahisa Yamakawa, Toshiaki Nishimoto, Takayoshi Hayashi | 2009-02-03 |
| 7360531 | Combustion chamber structure for spark-ignition engine | Masahisa Yamakawa, Kouji Shishime, Toshiaki Nishimoto | 2008-04-22 |
| 6923156 | Air intake system for multi-cylinder engine | Noriyuki Iwata, Shigeyuki Hirashita, Tatsuya Fujikawa | 2005-08-02 |