Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9021789 | Degradation diagnostic apparatus for NOx catalyst | Hiroshi Sawada, Yasushi Iwazaki, Toru Kidokoro | 2015-05-05 |
| 8219278 | NOx sensor malfunction diagnostic device and malfunction diagnostic method | Hiroshi Sawada | 2012-07-10 |
| 8091404 | Abnormality diagnosis apparatus for NOx sensor | Hiroshi Sawada | 2012-01-10 |
| 7504012 | Quickly activatable structure of gas sensor element | Susumu Naito, Makoto Nakae | 2009-03-17 |
| 7160422 | Gas sensor incorporating a multilayered gas sensing element | Susumu Naito, Makoto Nakae, Namitsugu Fujii | 2007-01-09 |
| 6660142 | Nonfragile and quickly activatable structure of gas sensor element | Tomio Sugiyama, Makoto Nakae | 2003-12-09 |
| 6338782 | Gas sensor | Tomio Sugiyama, Akio Tanaka | 2002-01-15 |
| 6205843 | Gas sensing element and a method for measuring a specific gas concentration | Akio Tanaka, Tomio Sugiyama, Satoshi Hada, Keigo Mizutani | 2001-03-27 |
| 5830339 | Gas concentration detector | Isao Watanabe, Masahiro Shibata, Tomio Sugiyama, Syuichi Nakano | 1998-11-03 |
| 5811660 | Air-fuel ratio sensing element | Syuichi Nakano, Tomio Sugiyama, Hiromi Sano | 1998-09-22 |
| 5787866 | Air-fuel ratio sensor | Tomio Sugiyama, Naoto Miwa, Hiromi Sano, Masahiro Shibata, Syuichi Nakano | 1998-08-04 |
| D323183 | Printer | Toru Irie, Yoshinori Kakiuchi | 1992-01-14 |
| D318684 | Printer | Toru Irie, Yoshinori Kakiuchi | 1991-07-30 |