Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9043121 | Air-fuel ratio variation abnormality detecting device and air-fuel ratio variation abnormality detecting method | Toshihiro Kato, Isao Nakajima, Tatsuro Shimada, Shinichi Nakagoshi | 2015-05-26 |
| 8892337 | Apparatus for detecting imbalance abnormality in air-fuel ratio between cylinders in multi-cylinder internal combustion engine | Shota Kitano, Hitoshi Tanaka, Isao Nakajima, Yoshihisa Oda, Masashi Hakariya +4 more | 2014-11-18 |
| 8620564 | Abnormality detection apparatus and abnormality detection method for multi-cylinder internal combustion engine | Masashi Hakariya, Isao Nakajima, Yoshihisa Oda, Hitoshi Tanaka, Shota Kitano +4 more | 2013-12-31 |
| 8281650 | Misfire determination device and misfire determination method for internal combustion engine | Yohei Moriyama | 2012-10-09 |