Issued Patents All Time
Showing 26–48 of 48 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6132932 | Information recording medium and information recording and reproducing apparatus using the same | Makoto Miyamoto, Motoyasu Terao, Nobuhiro Tokushuku, Keikichi Andoo, Tetsuya Nishida +3 more | 2000-10-17 |
| 6125087 | Optical pickup for optical disk apparatus | Kunikazu Ohnishi, Masayuki Inoue, Tohru Sasaki, Takeshi Nakao, Takeshi Shimano | 2000-09-26 |
| 6069862 | Compact optical head including two light emitters having parallel optical axes | Shinji Fujita, Hidenori Shinohara, Toshio Sugiyama, Nobuo Imada | 2000-05-30 |
| 5872761 | Optical disk apparatus and optical head thereof | Yasuyuki Sugi, Toshio Sugiyama, Nobuo Imada, Hidenori Shinohara | 1999-02-16 |
| 5754433 | Computer-aided design system | Hiroshi Yokoi, Makoto Shimojo | 1998-05-19 |
| 5699341 | Optical disk apparatus and optical head thereof | Yasuyuki Sugi, Toshio Sugiyama, Nobuo Imada, Hidenori Shinohara | 1997-12-16 |
| 5555334 | Optical transmission and receiving module and optical communication system using the same | Kunikazu Ohnishi, Masayuki Inoue, Yoshio Suzuki | 1996-09-10 |
| 5541909 | Optical disc with phase pits and a reproducing apparatus for data recorded on the optical disc | Junji Nakajima, Kunikazu Ohnishi, Tooru Sasaki, Makoto Miyamoto, Masaaki Kurebayashi +4 more | 1996-07-30 |
| 5412770 | Cad free-form reshaping method | Juli Yamashita | 1995-05-02 |
| 5327407 | Tracking control apparatus for generating sawtooth tracking control signal from sinusoidal tracking error signal | Motoyuki Suzuki, Yoshio Suzuki | 1994-07-05 |
| 5276670 | Phase change optical disk and method for using the same | Hiroshi Nogami, Masaji Ishigaki, Norio Goto, Makoto Miyamoto | 1994-01-04 |
| 5107482 | Optical information recording method and apparatus and recording medium used therefor | Norio Goto, Masaji Ishigaki | 1992-04-21 |
| 4866688 | Composite tracking servo system for optical disc apparatus with track offset correction | Masatoshi Ohtake, Seiji Yonezawa, Toshiaki Tsuyoshi, Kazuo Ichino, Takashi Takeuchi +2 more | 1989-09-12 |
| 4805040 | Drop-out correction circuit in an apparatus for correcting time base error with inhibition of time-base information during dropout | Masuo Oku, Yoshimichi Kudo, Isao Saito | 1989-02-14 |
| 4783776 | Method of recording and reproducing digital information and apparatus therefor | Masaji Ishigaki, Hideo Onuki, Masayuki Inoue, Kunikazu Ohnishi | 1988-11-08 |
| 4772114 | Dynamic optometer | Tsunehiro Takeda, Takeo Iida | 1988-09-20 |
| 4768183 | Optical reproducing apparatus | Kunikazu Ohnishi, Akira Arimoto, Masayuki Inoue | 1988-08-30 |
| 4689778 | Optical disc recording/reproducing apparatus with recorded track-section detector | Yoshio Miura | 1987-08-25 |
| 4645712 | Information recording medium | Masaji Ishigaki, Tetsu Ohishi, Nobuhiro Tokusyuku, Yoshie Kodera | 1987-02-24 |
| 4580255 | Servo circuit for a signal reproducing apparatus | Shigeki Inoue, Takao Arai, Takashi Takeuchi, Harushige Nakagaki, Masafumi Nakamura +1 more | 1986-04-01 |
| 4550294 | Pattern indication using laser beam | Yoshiki Kishi, Toyotoshi Hirotani, Tomohiro Ohira | 1985-10-29 |
| 4525823 | Optical tracking system | Toshio Sugiyama, Hideo Suenaga | 1985-06-25 |
| 4245143 | Microwave oven | Yoshio Miura, Katunobu Takeda | 1981-01-13 |