Issued Patents All Time
Showing 51–75 of 82 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5966354 | Drive apparatus for objective lens | Naomasa Takahashi | 1999-10-12 |
| 5930214 | Recording/reproducing optical head apparatus compatible with different optical media | Isao Hoshino, Hisashi Yamada | 1999-07-27 |
| 5764432 | Recording and reproducing head slider and recording and reproducing apparatus using same | — | 1998-06-09 |
| 5751515 | Recording and reproducting head slider having multiple slider rails and a projection portion | — | 1998-05-12 |
| 5745466 | Objective lens drive apparatus for a recording and reproducing different discs of different format | — | 1998-04-28 |
| 5740150 | Galvanomirror and optical disk drive using the same | Kiyotaka Uchimaru, Masayuki Sekimura | 1998-04-14 |
| 5737302 | Galvanomirror and optical disk drive using the same | — | 1998-04-07 |
| 5729510 | Optical head used for recording on optical recording medium having various thicknesses, warpage and the like | Isao Hoshino, Hisashi Yamada | 1998-03-17 |
| 5721723 | Objective lens driving device, data recording device, and data reproducing device, all having driver force selectively 120 tutine and positioning the objective lenses | Kiyotaka Uchimaru, Koichi Nagai, Naomasa Takahashi | 1998-02-24 |
| 5602822 | Optical head and lens actuator | Masaru Ishii | 1997-02-11 |
| 5592459 | Optical head device having electro-magnetically rotatable and straight movable members | — | 1997-01-07 |
| 5566148 | Optical disk tracking system for searching a target track based on a table of compensation reference velocity | Tamane Takahara | 1996-10-15 |
| 5497360 | Optical disc apparatus with accessing using only reference velocity during acceleration and reference and moving velocities during deceleration | Tamane Takahara | 1996-03-05 |
| 5493546 | Optical disk apparatus for optically processing information | — | 1996-02-20 |
| 5483516 | Optical head and lens actuator | Masaru Ishii | 1996-01-09 |
| 5361243 | Optical disk apparatus having laminated diaphragm springs structure | — | 1994-11-01 |
| 5345432 | Optical head | Hideo Yamasaki, Takashi Yoshizawa, Sou Ishika | 1994-09-06 |
| 5337865 | Viscoelastic substance and objective lens driving apparatus with the same | Akira Yamada, Takashi Yoshizawa, Katsutoshi Wada, Hideo Yamasaki | 1994-08-16 |
| 5285462 | Laser beam emitting device | — | 1994-02-08 |
| 5263014 | Optical head | — | 1993-11-16 |
| 5253402 | Method of manufacturing a leaf spring mechanism | — | 1993-10-19 |
| 5237557 | Optical head having improved reflecting assembly | Hideo Yamasaki, Akira Yamada, Hiroshi Saito | 1993-08-17 |
| 5218524 | Optical disk apparatus | Hideo Yamasaki, Takashi Yoshizawa, Sou Ishika | 1993-06-08 |
| 5206762 | Viscoelastic substance and objective lens driving apparatus with the same | Akira Yamada, Takashi Yoshizawa, Katsutoshi Wada, Hideo Yamasaki | 1993-04-27 |
| 5157825 | Method of manufacturing a leaf spring mechanism | — | 1992-10-27 |