Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6212159 | Laminated optical disc and turntable for the laminated optical disc | Kazuo Mori, Kimihide Nakatsu, Kiyoshi Yanagiguchi, Tetsuro Nagami, Yoshinobu Ishida | 2001-04-03 |
| 6049522 | Laminated optical disc and turntable for the laminated optical disc | Kazuo Mori, Kimihide Nakatsu, Kiyoshi Yanagiguchi, Tetsuro Nagami, Yoshinobu Ishida | 2000-04-11 |
| 5986984 | Optical information processing device having switchable optics for use with plural media types | Keiji Nakamura, Masahisa Shinoda, Takeshi Utakouji, Norihiro Watanabe, Nobuo Takeshita +4 more | 1999-11-16 |
| 5889757 | Laminated optical disc and turntable for the laminated optical disc | Kazuo Mori, Kimihide Nakatsu, Kiyoshi Yanagiguchi, Tetsuro Nagami, Yoshinobu Ishida | 1999-03-30 |
| 5687032 | Optical device inclination angle adjuster | Nobuo Takeshita, Teruo Fujita, Morihiro Karaki, Mitsuru Irie, Kazuhiko Nakane +1 more | 1997-11-11 |
| 5434834 | Optical recording and reproducing apparatus for tracking wobbling guide grooves | Masahisa Shinoda, Toshiya Matozaki, Keiji Nakamura, Toru Yoshihara, Takeshi Ito | 1995-07-18 |
| 5383169 | Optical recording and reproducing apparatus for tracking wobbling guide grooves | Masahisa Shinoda, Toshiya Matozaki, Keiji Nakamura, Toru Yoshihara, Takeshi Ito | 1995-01-17 |
| 5313447 | Optical head | Nobuo Takeshita, Teruo Fujita, Hiroo Shimegi, Kazuo Okada | 1994-05-17 |
| 5305294 | Magneto-optical recording/reproducing system having an electromagnetic actuator | Keiji Nakamura, Isao Watanabe, Hajime Nakajima | 1994-04-19 |
| 5303216 | Optical recording and reproducing apparatus for tracking wobbling guide grooves | Masahisa Shinoda, Toshiya Matozaki, Keiji Nakamura, Toru Yoshihara, Takeshi Ito | 1994-04-12 |
| 5247493 | Magneto-optical recording and reproducing disk device having a bimorph type actuator with specific structures for mounting a magnetic head in opposing to the surface of the disk | Keiji Nakamura, Isao Watanabe, Hajime Nakajima | 1993-09-21 |
| 5182739 | Apparatus for maintaining a disk and optical head in orthogonal relation | Naoyuki Egusa, Keiji Nakamura | 1993-01-26 |
| 5105405 | Objective lens driving device | Akira Hashimoto | 1992-04-14 |
| RE33548 | Deviation correction apparatus for optical disc light beams | — | 1991-03-05 |
| 4792935 | Objective lens driving device with multipole magnet | Shigekazu Sakabe, Akira Hashimoto, Toshiya Matozaki | 1988-12-20 |
| 4730899 | Optical signal reading device | Kazuo Okada, Mitsushige Kondou | 1988-03-15 |
| 4566089 | Deviation correction apparatus for optical disc light beams | — | 1986-01-21 |