| 9021789 |
Degradation diagnostic apparatus for NOx catalyst |
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| 8219278 |
NOx sensor malfunction diagnostic device and malfunction diagnostic method |
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2012-07-10 |
| 8091404 |
Abnormality diagnosis apparatus for NOx sensor |
Hiroshi Sawada |
2012-01-10 |
| 7504012 |
Quickly activatable structure of gas sensor element |
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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 |
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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 |
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1998-08-04 |
| D323183 |
Printer |
Toru Irie, Yoshinori Kakiuchi |
1992-01-14 |
| D318684 |
Printer |
Toru Irie, Yoshinori Kakiuchi |
1991-07-30 |
