Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5673558 | Hydraulic circuit system for hydraulic excavator | Genroku Sugiyama, Toichi Hirata, Koji Ishikawa, Tsukasa Toyooka | 1997-10-07 |
| 5627490 | Amplifier circuit | Koji Sushihara, Takashi Yamamoto, Ikuo Imanishi, Michinori Kishimoto, Kenichi Ishida | 1997-05-06 |
| 5606483 | Wire protecting apparatus for automobiles | Mamoru Sawai, Kaoru Kurita, Yasuhiro Hara, Mitsugu Watanabe | 1997-02-25 |