Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4633204 | Mechanical filter | Takashi Gounji, Shinichi Yamamoto, Yoshiro Tomikawa, Masashi Konno, Toshiharu Ogasawara | 1986-12-30 |
| 4555682 | Mechanical filter | Takashi Gounji, Yoshihiko Kasai, Chikao Takeuchi | 1985-11-26 |