Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6223302 | Information recording/reproducing unit and information recording/reproducing data | Yoshimitsu Nakamura | 2001-04-24 |
| 5896364 | Optical recording medium having both serial data and random data recording areas | Yoshimitsu Nakamura | 1999-04-20 |
| 5872901 | Manifold apparatus with bidirectional interface for connection to a host computer | Toshihiro Konno, Koji Ikawa, Toshiya Masuda, Masaaki Nagano, Tetsuya Asakura | 1999-02-16 |
| 5831947 | Automatic medium changing apparatus using an automatic regulator according to the disk type | Makoto Fujita, Yoshio Umeda | 1998-11-03 |
| 5808995 | Disk information reading control apparatus having a variable read transfer speed and a disk information reading control method | Nobuyuki Nakamura, Makoto Usui | 1998-09-15 |
| 5757759 | Optical disk data recording and reproduction with opposed polarity in adjacent tracks | Toshihiko Takahashi | 1998-05-26 |
| 5420835 | Magneto-optic disk apparatus | Toshiya Akagi | 1995-05-30 |
| 5357493 | Magneto-optic memory device for overwriting information on magneto-optic recording medium by using a pair of light spots without using an external magnetic field | Mieko Kobukata | 1994-10-18 |
| 5321673 | Partial ROM type optical disk and its recording and reproducing apparatus | — | 1994-06-14 |
| 5229983 | Bias magnetic field generating apparatus for magneto-optical recording and reproducing system | Ichiro Kawamura, Goro Naoki, Ryoichi Imanaka | 1993-07-20 |
| 5216646 | Tracking system in recording/reproducing apparatus | Ryoichi Imanaka | 1993-06-01 |