Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6900407 | Electric discharge machine with reactive force compensated by jump locus adjustment | Naotake Mohri, Nagao Saitoh, Hajime Ogawa, Takayuki Nakagawa, Yoshihito Imai | 2005-05-31 |
| 6310313 | Electrical discharge apparatus | Hajime Ogawa, Takashi Kanaya | 2001-10-30 |