Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6776895 | Method of producing a gas sensor element | Yasumichi Hotta, Namitsugu Fujii | 2004-08-17 |
| 6660145 | Oxygen sensor element | Yasumichi Hotta, Hiroshi Sugino, Namitsugu Fujii | 2003-12-09 |
| 6562212 | Gas sensor element | Yasumichi Hotta, Namitsugu Fujii | 2003-05-13 |
| 6354134 | Oxygen sensing element used in a oxygen sensor | Kiyomi Kobayashi, Namitsugu Fujii, Hiromi Sano | 2002-03-12 |