Issued Patents All Time
Showing 25 most recent of 113 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12359602 | SOx concentration acquiring apparatus of internal combustion engine | Kazuhisa Matsuda, Kazuhiro Wakao | 2025-07-15 |
| 12071907 | Control device for internal combustion engine | Masato Ikemoto | 2024-08-27 |
| 11920532 | Exhaust gas control apparatus for internal combustion engine and exhaust gas control method for the same | — | 2024-03-05 |
| 11898511 | Control device for internal combustion engine and catalyst abnormality diagnosis method | — | 2024-02-13 |
| 11828243 | Exhaust gas control apparatus and exhaust gas control method for internal combustion engine | — | 2023-11-28 |
| 11401877 | Control system of air-fuel ratio sensor | — | 2022-08-02 |
| 11319890 | Abnormality detection device for air-fuel ratio detection device | Kazuhiro Wakao, Yoshiyuki KITAZUME, Yasutaka Kamiya | 2022-05-03 |
| 11319889 | Abnormality diagnosis system of downstream side air-fuel ratio detection device | Yoshiyuki KITAZUME, Kazuhiro Wakao, Yasutaka Kamiya | 2022-05-03 |
| 11199148 | Control device for exhaust sensor | Kazuhiro Wakao, Yasutaka Kamiya | 2021-12-14 |
| 11092100 | Control system of internal combustion engine | — | 2021-08-17 |
| 11092102 | Sensor system | Mie Kato, Kazuki Takahashi | 2021-08-17 |
| 11078858 | Control apparatus for an internal combustion engine | Kazuki Takahashi | 2021-08-03 |
| 10968807 | Catalyst deterioration detection system | — | 2021-04-06 |
| 10934958 | Air-fuel ratio detection device and air-fuel ratio detection method | Kazuhiro Wakao, Keisuke Mizutani | 2021-03-02 |
| 10808586 | Exhaust gas purification apparatus for an internal combustion engine | Hiroshi Kobayashi, Toshihiro Mori, Daichi Imai | 2020-10-20 |
| 10794857 | Gas detector | Kazuhiro Wakao, Kazuhisa Matsuda | 2020-10-06 |
| 10781734 | Exhaust gas control apparatus for internal combustion engine | Masataka OGUSHI, Toshihiro Mori, Hiroshi Kobayashi | 2020-09-22 |
| 10712323 | Control device for gas detector and control method for gas detector | Keigo Mizutani, Kazuhiro Wakao, Kazuhisa Matsuda | 2020-07-14 |
| 10697923 | Control device of nitrogen oxide sensor | Yoshihisa Serizawa | 2020-06-30 |
| 10690629 | Gas detection device | Kazuhisa Matsuda, Kazuhiro Wakao | 2020-06-23 |
| 10677750 | Gas detection device | — | 2020-06-09 |
| 10677749 | Gas detection device | — | 2020-06-09 |
| 10626819 | Diagnosis system of internal combustion engine | Hiroshi Miyamoto, Yasushi Iwazaki | 2020-04-21 |
| 10605765 | Gas detection device | Kazuhiro Wakao, Kazuhisa Matsuda | 2020-03-31 |
| 10598063 | Exhaust purification system of internal combustion engine | Kimikazu Yoda, Go Hayashita | 2020-03-24 |