Issued Patents 1994
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5357384 | Rotating disk data storage apparatus capable of preventing head travel when the disk is not loaded | Hiroshi Tsuyuguchi, Shinichiro Tanaka, Miya Enami, Hikaru Tamada, Yoshiaki Sakai | 1994-10-18 |
| 5345343 | Power saving system for file protect and disk capacity sensors in rotating disk data storage apparatus | Hiroshi Tsuyuguchi | 1994-09-06 |
| 5309296 | System for eliminating noise arising from difference in polarity of magnetization by tunnel erase heads | Fumio Nagase, Hiroshi Tsuyuguchi | 1994-05-03 |
| 5303107 | System for holding a track counter active despite power suspension in rotating disk data storage apparatus | Hiroshi Tsuyuguchi, Fumio Nagase, Miya Enami | 1994-04-12 |
| 5293625 | Signal selecting circuit which selectively outputs predetermined signal to host computer compatible with plurality of computer hardware types and disk drive having such signal selecting circuit | Hiroshi Tsuyuguchi, Shozo Touma | 1994-03-08 |
| 5293601 | Floppy disk control unit and apparatus having a floppy disk control unit | Hiroshi Tsuyuguchi, Shinichiro Tanaka, Fumio Nagase, Naoki Sugeta, Miya Enami +1 more | 1994-03-08 |
| 5283702 | Power saving system for rotating disk data storage apparatus | Hiroshi Tsuyuguchi, Yoshio Hirose, Kazuhiko Inoue, Miya Enami | 1994-02-01 |