Issued Patents All Time
Showing 26–38 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5032934 | Magnetic disc apparatus with a cosine equalizer and specific gap length head | Shinichi Aikawa, Hiroshi Tsuyuguchi, Fumio Nagase | 1991-07-16 |
| 4961486 | Retainer plate of a one-way clutch assembly | Yoshio Kinoshita, Shigeaki Koshino | 1990-10-09 |
| 4903156 | Magnetic recording and/or reproducing apparatus having a head support mechanism for suppressing vibration of magnetic heads | Tohru Hayashi, Shinichi Aikawa, Hiroshi Matsunaga, Jun Makabe | 1990-02-20 |
| D300323 | Disc drive assembly | Yasushi Noda, Kenji Takeuchi | 1989-03-21 |
| 4771346 | Method and apparatus for rewriting on a magnetic disk on which data has been written by another apparatus having half the track density capability of the first apparatus | Makoto Shoji, Hiroshi Tsuyuguchi | 1988-09-13 |
| 4709283 | Recording disk centering and clamping apparatus | Toshihiro Kitahara, Kou Kobayashi, Satoru Kikuchi | 1987-11-24 |
| 4694361 | Data transfer apparatus having a simplified clamp mechanism for holding a disklike record medium in place | Isamu Tsuchiya, Tsutomu Kawasaki | 1987-09-15 |
| 4691255 | Power saving circuit arrangement for data transfer apparatus with a disklike record medium | Hiroshi Tsuyuguchi | 1987-09-01 |
| 4675763 | Magnetic disk drive with a disk leveling mechanism | Hiroshi Tsuyuguchi, Yasushi Noda, Takahiro Sakaguchi | 1987-06-23 |
| 4651235 | Magnetic data transfer apparatus having a combined read/write head | Tsutomu Morita, Shozo Toma | 1987-03-17 |
| 4611257 | Vibration controlled data transfer apparatus with a double sided flexible magnetic disk | Kazuhiko Shiroyama, Tamotsu Haraguchi | 1986-09-09 |
| 4594620 | Disk storage file with a four phase, single phase drive stepping motor | Makoto Shoji | 1986-06-10 |
| 4583133 | Data transfer system with a plurality of disklike record media for selective use | Makoto Shoji | 1986-04-15 |