Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7704358 | Oxygen sensor | Futoshi Ichiyanagi, Akira Uchikawa, Shoichi Sakai | 2010-04-27 |
| 7655122 | Oxygen concentration detecting element | Shoichi Sakai, Futoshi Ichiyanagi, Junji Onozuka | 2010-02-02 |