Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6726819 | Gas sensor | Satoshi Ishikawa | 2004-04-27 |
| 6682639 | Gas sensor | Satoshi Ishikawa | 2004-01-27 |
| 6672137 | Oxygen sensor and manufacturing method of sensor element | Hiroshi Isomura, Koji Shiono, Masamine Takagi | 2004-01-06 |