Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9001455 | Magnetic recording medium, servo signal recording apparatus and method of producing magnetic recording medium | Eiji Nakashio, Hiroshi Morita | 2015-04-07 |
| 7280299 | Recording method for magnetic recording medium, recording device for magnetic recording medium and magnetic recording medium | Masanori Takano, Takashi Abe, Nobufumi Takasu, Yoshiyuki Watanabe | 2007-10-09 |
| 7224544 | Method and device for recording data and erasing servo data | Masanori Takano, Takashi Abe, Nobufumi Takasu, Yoshiyuki Watanabe | 2007-05-29 |
| 6307713 | Center core for disc-shaped recording medium and process of producing same | Hiroshi Meguro | 2001-10-23 |
| 6166883 | Spring assembly for biasing shutter of a disk cassette | Shintaro Higuchi | 2000-12-26 |
| 5327314 | Disk cartridge lifter with cutout across folding line | Shuichi Kikuchi | 1994-07-05 |