Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5591406 | Automatic exhaust gas analyzer for an internal combustion engine | Akira Aono, Shinya Tsuneda, Hirokazu Matsumoto, Yuji Yamashita, Hisayoshi Tanaka +2 more | 1997-01-07 |