Issued Patents All Time
Showing 26–46 of 46 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6246648 | Aberration correcting apparatus and information reproducing apparatus having the same | — | 2001-06-12 |
| 6243337 | Tilt detector | Shogo Miyanabe | 2001-06-05 |
| 6194129 | Method of manufacturing a master optical disk | Osamu Kasono, Takanobu Higuchi | 2001-02-27 |
| 6167008 | Skew detecting method and apparatus for optical disc | — | 2000-12-26 |
| 6163518 | Crosstalk eliminating method for use in a recorded information reproducing apparatus | Shogo Miyanabe | 2000-12-19 |
| 6147951 | Recorded information reproduction method and recorded information reproduction apparatus with multiple reading elements | Yoshitsugu Araki, Junichi Furukawa | 2000-11-14 |
| 6134211 | Crosstalk removing device for use in recorded information reproducing apparatus | Shogo Miyanabe | 2000-10-17 |
| 6091679 | Tracking error signal generating method and apparatus | Takanori Maeda | 2000-07-18 |
| 6084837 | Apparatus for reproducing information recorded on a recording medium, having a crosstalk reducing circuit | Shogo Miyanabe | 2000-07-04 |
| 5870372 | Adaptive equalizer of recorded information reproducing apparatus | — | 1999-02-09 |
| 5835467 | Apparatus for reproducing recorded information | Yoshimi Tomita | 1998-11-10 |
| 5768313 | Adaptive equilizer | — | 1998-06-16 |
| 5650988 | Digital signal reproducing apparatus with an amplitude limit sampling means | — | 1997-07-22 |
| 5646932 | Optical disk, tracking error signal generating apparatus, and tracking control apparatus | Fumihiko Yokogawa | 1997-07-08 |
| 5615206 | Optical disk | Takuma Yanagisawa, Seiichi Ohsawa | 1997-03-25 |
| 5508993 | Digital signal reproducing apparatus using a Viterbi decoder | Hideki Hayashi | 1996-04-16 |
| 5444680 | Digital signal processing apparatus with a read error correction function | Masaru Umezawa | 1995-08-22 |
| 5434836 | Optical disk, tracking error signal generating apparatus, and tracking control apparatus | Fumihiko Yokogawa | 1995-07-18 |
| 5430700 | Apparatus for playing optical recording medium with combination tracks and plural beams tracking servo | Fumihiko Yokogawa | 1995-07-04 |
| 5376422 | Optical recording medium and apparatus for playing such a medium | Fumihiko Yokogawa | 1994-12-27 |
| 5121375 | Information-recorded disk carrying tracking pilot signal and playing apparatus therefor | — | 1992-06-09 |