| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 27 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Engines, pumps and turbines | |
| #3 | Measurement | |
| #4 | Machines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Aoki Keiichiro | 27 |
| #2 | Hayashita Go | 6 |
| #3 | Sasaki Takanori | 4 |
| #4 | Sakayanagi Yoshihiro | 1 |
| #5 | Wakao Kazuhiro | 1 |
| #6 | Nishijima Hiroki | 1 |
| #7 | Iwazaki Yasushi | 1 |
| #8 | Kitaura Koichi | 1 |
| #9 | Suzuki Yusuke | 1 |
| #10 | Ide Yoshihiro | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2015013441A1 | NOx sensor control device | |
| US2013276431A1 | Oxygen sensor and oxygen sensor control device | |
| US2012209498A1 | Air-fuel-ratio imbalance determination apparatus for internal combustion engine | |
| US2012031077A1 | Pm sensor, pm amount sensing device for exhaust gas, and abnormality detection apparatus for internal combustion engine |