Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8915226 | Electrode material for electrode of spark plug | Toshihiro Uehara | 2014-12-23 |
| 7078659 | Corrosion resistance structure of ceramic heater and gas sensor equipped with same | Kozo Takamura, Makoto Shirai | 2006-07-18 |
| 5948226 | Oxygen concentration detector | Toshihiro Sakawa, Michihiro Yamakawa | 1999-09-07 |