Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9920836 | Piston ring for internal combustion engine | Hayato Sasaki, Takashi Ono | 2018-03-20 |
| 6787014 | Gas-detecting element and gas-detecting device comprising same | Masaharu Hasei, Akira Kunimoto, Takashi Ono | 2004-09-07 |
| 6673223 | Gas sensing and oxygen pumping device, and apparatus using the same | Akira Kunimoto, Takashi Ono | 2004-01-06 |
| 6551497 | Measuring NOx concentration | Yunzhi Gao, Akira Kunimoto, Hideyuki Kurosawa, Yukio Nakanouchi, Norio Miura +2 more | 2003-04-22 |
| 6413397 | Nitrogen oxide gas sensor | Masaharu Hasei, Akira Kunimoto | 2002-07-02 |
| 6319377 | Nitrogen oxide sensor | Masaharu Hasei, Yunzhi Gao, Takashi Ono, Akira Kunimoto | 2001-11-20 |
| 6303011 | Gas sensor | Yunzhi Gao, Yukio Nakanouchi, Akira Kunimoto, Masaharu Hasei, Takashi Ono | 2001-10-16 |
| 6274016 | Nitrogen oxide gas sensor | Masaharu Hasei, Akira Kunimoto | 2001-08-14 |
| 6126902 | NOx sensor | Akira Kunimoto, Masaharu Hasei, Hideyuki Kurosawa, Yukio Nakanouchi | 2000-10-03 |