Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9279378 | Apparatus for detecting imbalance abnormality in air-fuel ratio between cylinders in multi-cylinder internal combustion engine | Akihiro Katayama, Leuth Insixiengmai, Sei Maruta, Shinichi Nakagoshi, Masahide Okada | 2016-03-08 |
| 9181836 | Secondary air supply system and secondary air supply method for internal combustion engine | Toru Yaeo, Shinya Kondo | 2015-11-10 |
| 9097193 | Inter-cylinder air-fuel ratio variation abnormality detection apparatus for multicylinder internal combustion engine | Yoshihisa Oda, Isao Nakajima, Masashi Hakariya, Akihiro Katayama, Sei Maruta +3 more | 2015-08-04 |