Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11103131 | Laparoscopic device and endoscopic system | Masanao Majima, Yasuyuki Natsuno, Katsumi Fujiwara, Junichi Jono | 2021-08-31 |
| 9644738 | Combination of cylinder and piston ring | Masaki Moronuki | 2017-05-09 |
| 9303765 | Combined oil control ring | — | 2016-04-05 |
| 7869329 | Optical information recording and reproducing apparatus | Mitsuru Watanabe | 2011-01-11 |
| 6972162 | Solid polymer electrolyte fuel cell unit | Yunzhi Gao | 2005-12-06 |
| 6852438 | Embossed current collector separator for electrochemical fuel cell | Yunzhi Gao | 2005-02-08 |
| 6787014 | Gas-detecting element and gas-detecting device comprising same | Masaharu Hasei, Yongtie Yan, Takashi Ono | 2004-09-07 |
| 6773565 | NOx sensor | Takashi Ono, Masaharu Hasei | 2004-08-10 |
| 6771204 | Radio wave absorber | Toshikatsu Hayashi | 2004-08-03 |
| 6673223 | Gas sensing and oxygen pumping device, and apparatus using the same | Yongtie Yan, Takashi Ono | 2004-01-06 |
| 6551497 | Measuring NOx concentration | Yunzhi Gao, Yongtie Yan, Hideyuki Kurosawa, Yukio Nakanouchi, Norio Miura +2 more | 2003-04-22 |
| 6471840 | Composite sensor | Yunzhi Gao, Masaharu Hasei | 2002-10-29 |
| 6413397 | Nitrogen oxide gas sensor | Masaharu Hasei, Yongtie Yan | 2002-07-02 |
| 6319377 | Nitrogen oxide sensor | Masaharu Hasei, Yongtie Yan, Yunzhi Gao, Takashi Ono | 2001-11-20 |
| 6303011 | Gas sensor | Yunzhi Gao, Yukio Nakanouchi, Masaharu Hasei, Yongtie Yan, Takashi Ono | 2001-10-16 |
| 6274016 | Nitrogen oxide gas sensor | Masaharu Hasei, Yongtie Yan | 2001-08-14 |
| 6126902 | NOx sensor | Yongtie Yan, Masaharu Hasei, Hideyuki Kurosawa, Yukio Nakanouchi | 2000-10-03 |
| 5917536 | Image recording apparatus for medical use | Youji Yamamichi, Katsuya Tanimoto | 1999-06-29 |