Issued Patents 1997
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5648944 | Recording/reproducing apparatus that utilizes the servo clock signals to form read and write clock signals with different frequencies | Kiyoshi Ohmori, Katsuhiro Seo, Junichi Kudo | 1997-07-15 |
| 5627810 | Recording/reproducing apparatus that forms read and write clock signals with differing frequencies from the servo clock signals | Kiyoshi Ohmori, Katsuhiro Seo, Junichi Kudo | 1997-05-06 |
| 5617378 | Magneto-optical disc system having an objective lens with a numerical aperture related to the thickness of the protective layer | Yoshio Aoki | 1997-04-01 |
| 5610880 | Optical disc system and optical disk therefor | Yoshio Aoki | 1997-03-11 |
| 5592465 | Disc recording method | Tamotsu Yamagami, Yoichiro Sako | 1997-01-07 |