Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4722778 | Gas sensor with gas diffusion chamber between two platy solid electrolyte cells | Tetsusyo Yamada, Kazunori Yokota | 1988-02-02 |
| 4722779 | Air/fuel ratio sensor | Tetsusyo Yamada, Kazunori Yokota, Keiichi Hayashi, Toyohei Nakajima, Yasushi Okada | 1988-02-02 |
| 4584086 | Device for detecting concentration of oxygen in exhaust gas | Masahiko Yamada, Toshiyuki Ishihara | 1986-04-22 |