Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6684848 | Direct-injection spark-ignition engine | Fumihiko Saito, Noriyuki Ohta, Hiroyuki Yamashita, Masashi Marubara, Masatoshi Seto +2 more | 2004-02-03 |
| 6672277 | Direct-injection spark ignition engine | Noriyuki Ohta, Hiroyuki Yamashita, Masatoshi Seto, Masakazu Matsumoto, Fumihiko Saito +1 more | 2004-01-06 |
| 6311665 | Direct injection engine | Hiroyuki Yamamoto, Tohru Shiraishi, Hiroyuki Yamashita | 2001-11-06 |
| 6009849 | Direct fuel injection engine | Hiroyuki Yamamoto, Hidetoshi Kudo, Noriyuki Ota, Masayuki Kuroki, Akira Kageyama +1 more | 2000-01-04 |