Issued Patents All Time
Showing 51–75 of 91 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6169714 | Apparatus and method for recording/reproducing magneto-optical information | Yasuhito Tanaka, Masaaki Kurebayashi, Takeshi Maeda, Hitoshi Watanabe, Tetsu Watanabe +3 more | 2001-01-02 |
| 6125085 | Optical recording method and device for optimally controlling the width of the recording marks | Hiroshi Fuji, Tetsuya Okumura | 2000-09-26 |
| 6055223 | Optical memory apparatus | Kenji Ohta, Yoshikazu Fujii, Tetuya Inui, Toshihisa Deguchi | 2000-04-25 |
| 6028828 | Disk type recording medium and disk recording and reproducing device | — | 2000-02-22 |
| 5953297 | Disk-shaped recording medium and disk recording or reproducing device | Kunio Kojima | 1999-09-14 |
| 5870375 | Disk-shaped recording medium with a groove section having a wobbling side wall | Kunio Kojima | 1999-02-09 |
| 5828649 | Magneto-optical memory element | Kenji Ohta, Yoshikazu Fujii, Tetuya Inui, Toshihisa Deguchi | 1998-10-27 |
| 5809005 | Method for manufacturing a magneto-optical memory element | Kenji Ohta, Yoshikazu Fujii, Tetuya Inui, Toshihisa Deguchi | 1998-09-15 |
| 5764607 | Method and apparatus for controlling digital copying of digitally recorded information | Kunio Kojima, Jun Akiyama | 1998-06-09 |
| 5555229 | Method and arrangement for recording/reproducing compressed program information on a recording medium containing a plurality of programs | Kunio Kojima, Jun Akiyama | 1996-09-10 |
| 5457667 | Data recording/reproducing apparatus with alternating access of compressed works | Kunio Kojima, Jun Akiyama | 1995-10-10 |
| 5434829 | Information reproducing apparatus for properly synchronizing the reproducing of recorded information | Tomiyuki Numata, Kunio Kojima | 1995-07-18 |
| 5434991 | Method and apparatus for recording and reproducing information in black on a rewritable recording medium | Kunio Kojima, Kazuaki Okumura, Shigeo Terashima | 1995-07-18 |
| 5432768 | Method and device for data management in optical recording medium | Shigeo Terashima, Toshihisa Deguchi, Kunio Kojima | 1995-07-11 |
| 5420838 | Disk recording and reproducing device | Shigeo Terashima, Toshio Ishikawa, Toshihisa Deguchi | 1995-05-30 |
| 5377167 | Recording/reproducing device | Shigeo Terashima | 1994-12-27 |
| 5343452 | Data recording/reproducing apparatus of simultaneously performing both reproducing and recording from and in a single recording medium | Kunio Kojima, Jun Akiyama | 1994-08-30 |
| 5317549 | Information recording and reproducing apparatus | Kunio Kojima | 1994-05-31 |
| 5315571 | Information recording and reproducing device providing faster access time to a recording medium | Kunio Kojima, Jun Akiyama, Shigeo Terashima, Tomiyuki Numata | 1994-05-24 |
| 5182741 | Optical disk recording/reproducing device utilizing a constant angular velocity method with a constant linear velocity formatted optical disk | Toshihisa Deguchi, Shigeo Terashima | 1993-01-26 |
| 5153861 | Recording/reproducing device | Shigeo Terashima | 1992-10-06 |
| 5142521 | Recording/reproducing device | Shigeo Terashima, Toshihisa Deguchi, Kunio Kojima | 1992-08-25 |
| 5134607 | Optical memory system for generating a timing control signal for detecting a recorded region through a playback signal | Hiroshi Fuji, Noriaki Sakamoto, Shigeo Terashima, Takeshi Yamaguchi, Kentaro Tsuji +1 more | 1992-07-28 |
| 5093820 | Optical disk recording/reproducing device | Hiroshi Fuji, Shigeo Terashima, Toshihisa Deguchi | 1992-03-03 |
| 5083301 | Optical card recording and reproducing device | Hirotsugu Matoba, Kenji Ohta, Shozo Kobayashi | 1992-01-21 |