Issued Patents All Time
Showing 51–56 of 56 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5458023 | Flexing contact type gear drive of non-profile-shifted two-circular-arc composite tooth profile | Shoichi Ishikawa | 1995-10-17 |
| 5353884 | Positioning device for a member and drilling system employing said positioning device | Toshiaki Misawa, Jun Sakata, Akio Ikeda | 1994-10-11 |
| 5316090 | Attitude control device and drilling-direction control device | Shoji Kuwana, Akio Ikeda | 1994-05-31 |
| 5307885 | Attitude and drilling-direction control device | Shoji Kuwana, Akio Ikeda | 1994-05-03 |
| 5269202 | Cup-type harmonic drive having a short, flexible cup member | Noboru Takizawa, Takahiro Oukura, Yoshito Yamamoto | 1993-12-14 |
| 4974470 | Tooth profile of one of circular splines of flat-shaped strain wave gearing | Shoichi Ishikawa | 1990-12-04 |