Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D363474 | Disk drive unit | Hiroaki Maruta | 1995-10-24 |
| D358140 | Disk drive unit | Kenji Matsumoto | 1995-05-09 |
| D357467 | Disk unit | Yoshiaki Sakai, Kenji Matsumoto | 1995-04-18 |
| D357005 | Disk unit | Yoshiaki Sakai, Kenji Matsumoto | 1995-04-04 |
| 5400191 | Electronic index pulse generating system for speed control in rotating disk data storage apparatus | Takahiro Sakaguchi | 1995-03-21 |
| 5371635 | Electronic index pulse generating system for speed control in rotating disk data | Takahiro Sakaguchi | 1994-12-06 |
| 5303223 | Head carriage apparatus moved by a lead-screw shaft including resilient means for pressing the lead-screw shaft in a slanting direction toward the head carriage | Takahiro Sakaguchi, Yasuhiko Ando, Kazuo Yokota, Hiroshi Tsuyuguchi | 1994-04-12 |
| 5263779 | Thrust ball-bearing | Takahiro Sakaguchi, Yohji Abe, Hiroshi Sugahara | 1993-11-23 |
| 5197181 | Motor positioning method | Yohji Abe, Takahiro Sakaguchi, Hiroshi Sugahara | 1993-03-30 |