Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5644069 | Sensor for distinguishing fuel vapors | Yuan Liu, Kenji Motosugi, Tetsu Yamamoto, Masayuki Arai | 1997-07-01 |
| 5640234 | Optical sensor for detection of chemical species | Yuan Liu, Werner Prass, Tetsu Yamamoto, Kenji Motosugi | 1997-06-17 |