Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5699767 | Gas engine | Ikurou Notsu, Hiroshi Matsuda, Nobuo Hamazaki, Yutaka Takada, Tatsuji Miyata | 1997-12-23 |
| 5683948 | Hermetic sealing composition | Ryuichi Tanabe, Satoshi Rokudai, Yuichi Kuroki | 1997-11-04 |
| 5671062 | Zoom lens having a light weight and temperature independent fourth lens group | — | 1997-09-23 |