Issued Patents All Time
Showing 25 most recent of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6567361 | Disk tray formed with groove for preventing dust intrusion | — | 2003-05-20 |
| 6522621 | Disc cassette | Sunao Aoki, Takakiyo Kanazawa, Takatsugu Funawatari | 2003-02-18 |
| 6314076 | Optical pickup device in recording and/reproducing apparatus | Shizuo Arai, Yoshitaka Aoki, Takakiyo Kanazawa, Akio Matsuda, Sunao Aoki +1 more | 2001-11-06 |
| 6272092 | Recording and reproducing apparatus with lock and release mechanism | Shizuo Arai, Yoshitaka Aoki, Takakiyo Kanazawa, Akio Matsuda, Sunao Aoki +1 more | 2001-08-07 |
| 6188661 | Recording and reproducing apparatus having elevation mechanism | Shizuo Arai, Yoshitaka Aoki, Takakiyo Kanazawa, Akio Matsuda, Sunao Aoki +1 more | 2001-02-13 |
| 6154431 | Recording and reproducing apparatus | Shizuo Arai, Yoshitaka Aoki, Takakiyo Kanazawa, Akio Matsuda, Sunao Aoki +1 more | 2000-11-28 |
| 6122237 | Disc drive apparatus with optical axis inclination adjustment based on a skew sensor and reference | Hidekazu Seto | 2000-09-19 |
| 6046976 | Disc cartridge with grooves for a recording and reproducing apparatus | Shizuo Arai, Yoshitaka Aoki, Takakiyo Kanazawa, Akio Matsuda, Sunao Aoki +1 more | 2000-04-04 |
| 6021108 | Optical pickup device in recording and/reproducing apparatus | Shizuo Arai, Yoshitaka Aoki, Takakiyo Kanazawa, Akio Matsuda, Sunao Aoki +1 more | 2000-02-01 |
| 6005029 | Organic composite-plated steel plate and resin composition for coating material used therein | Shin'ichi Kuwamura, Atsushi Miyagaki, Kiyoshi Ohnishi, Masahide Amemoto, Hisao Odashima +2 more | 1999-12-21 |
| 5970035 | Disc device that controls the incident angle of a light beam striking a disc | Hidekazu Seto | 1999-10-19 |
| 5850384 | Disk cartridge | Takatsugu Funawatari | 1998-12-15 |
| 5841752 | Disc drive unit | Sunao Aoki, Takeshi Funahashi, Yoshikatsu Niwa | 1998-11-24 |
| 5815470 | Disc drive unit | Sunao Aoki, Takeshi Funahashi, Yoshikatsu Niwa | 1998-09-29 |
| 5699344 | Disk drive device having stabilized spindle | Hideyoshi Horimai | 1997-12-16 |
| 5648944 | Recording/reproducing apparatus that utilizes the servo clock signals to form read and write clock signals with different frequencies | Tetsu Watanabe, Katsuhiro Seo, Junichi Kudo | 1997-07-15 |
| 5637403 | Organic composite-plated steel plate and resin composition for coating material used therein | Shin'ichi Kuwamura, Atsushi Miyagaki, Kiyoshi Ohnishi, Masahide Amemoto, Hisao Odashima +2 more | 1997-06-10 |
| 5627810 | Recording/reproducing apparatus that forms read and write clock signals with differing frequencies from the servo clock signals | Tetsu Watanabe, Katsuhiro Seo, Junichi Kudo | 1997-05-06 |
| 5502704 | Disc recording and/or reproducing apparatus | — | 1996-03-26 |
| 5452271 | Magneto-optical disc recording and/or reproducing apparatus with simplified means for moving the magnetic head close to and away from the magneto-optical disc during loading and unloading of the magneto-optical disc cartridge | Yoshitaka Aoki | 1995-09-19 |
| 5428583 | Magneto-optical disc recording/reproducing apparatus | Tetsu Watanabe, Katsuhiro Seo, Junichi Kudo | 1995-06-27 |
| 5416762 | Improved disc cartridge and recording and/or reproducing apparatus having means for positioning a turntable and disc cartridge support structure and means for reducing vibrations | Katsuhiro Seo | 1995-05-16 |
| 5414687 | Disc recording/reproducing apparatus | Tetsu Watanabe, Katsuhiro Seo, Junichi Kudo | 1995-05-09 |
| 5384757 | Magneto-optical disc recording and/or reproducing apparatus | Yoshitaka Aoki | 1995-01-24 |
| 5329503 | Magneto-optical disc recording/reproducing apparatus | Tetsu Watanabe, Katsuhiro Seo, Junichi Kudo | 1994-07-12 |