Issued Patents All Time
Showing 1–25 of 63 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5864406 | Method and apparatus for forming halftone images on organic-silver-salt-based printing plates | Kazuo Isaka, Toshiyuki Mizuno, Yoshinobu Shiraiwa | 1999-01-26 |
| 5627670 | Scanning optical apparatus having beam scan controller | Isamu Shimoda, Masayuki Suzuki, Yoshinobu Shiraiwa, Osamu Hoshino | 1997-05-06 |
| 5615038 | Scanning optical device with aberration compensation feature | Masayuki Suzuki, Osamu Hoshino, Yoshinobu Shiraiwa | 1997-03-25 |
| 5247505 | Information recording method for reciprocally recording and verifying information | Satoshi Shikichi, Fumiaki Kawaguchi, Kenichi Suzuki, Masayuki Usui, Hiroshi Matsuoka +4 more | 1993-09-21 |
| 5191463 | Scanning optical system in which a ghost image is elminated | — | 1993-03-02 |
| 5018123 | Optical information recording medium and method for recording information on said medium and reproducing information therefrom | Hideki Hosoya, Akio Aoki, Masahiko Enari, Masayuki Usui, Hiroshi Matsuoka +4 more | 1991-05-21 |
| 5010534 | Optical information recording-reproducing apparatus | Masahiko Enari, Satoshi Shikichi, Fumiaki Kawaguchi, Kenichi Suzuki, Masayuki Usui +4 more | 1991-04-23 |
| 4993792 | Scanning optical system in which a ghost image is eliminated | — | 1991-02-19 |
| 4990771 | Scanning optical apparatus having focus position detector | Isamu Shimoda | 1991-02-05 |
| 4947029 | Cleaning device for information recording medium | Hideo Kurihara, Kenichi Suzuki, Keiji Ohkoda, Hitoshi Kurihara, Yoshihiro Kurasawa | 1990-08-07 |
| 4937684 | Information recording-reproducing apparatus | Hitoshi Kurihara, Kenichi Suzuki | 1990-06-26 |
| 4935916 | Apparatus for recording and reproducing information including energy storing means | Kenichi Suzuki | 1990-06-19 |
| 4922351 | Optical information recording and reproducing apparatus | Kenichi Suzuki, Satoshi Shikichi, Fumiaki Kawaguchi, Masayuki Usui, Hiroshi Matsuoka +4 more | 1990-05-01 |
| 4912697 | Apparatus and method for preventing recording errors due to a reduction in the relative speed between an information carrying light beam and a recording medium | Masahiko Enari, Satoshi Shikichi, Fumiaki Kawaguchi, Kenichi Suzuki, Masayuki Usui +4 more | 1990-03-27 |
| 4907098 | Information recording-reproducing apparatus | Keiji Ohkoda, Kenichi Suzuki | 1990-03-06 |
| 4888753 | Information recording medium capable of accurately detecting the recording and reproduction starting positions and an information recording-reproducing method and apparatus therefor | Masahiko Enari, Akio Aoki, Machiko Matsushita, Hiroshi Matsuoka | 1989-12-19 |
| 4872743 | Varifocal optical element | Takeshi Baba, Kazuhiko Matsuoka, Masayuki Usui, Atsushi Someya, Masayuki Suzuki | 1989-10-10 |
| 4870633 | Apparatus for reproducing information recorded on a recording medium | Machiko Matsushita, Akio Aoki | 1989-09-26 |
| 4865426 | Variable aberration imaging optical system | Kazuhiko Matsuoka, Masayuki Usui, Takeshi Baba, Atsushi Someya, Yukuo Nishimura | 1989-09-12 |
| 4848879 | Light modulating device | Yukuo Nishimura, Yuko Miyajima, Takeshi Baba, Kazuhiko Matsuoka, Masayuki Usui +1 more | 1989-07-18 |
| 4842396 | Light modulation element and light modulation apparatus | Kazuhiko Matsuoka | 1989-06-27 |
| 4831243 | Information memory apparatus for reading out information from a moving recording medium | Masahiko Enari, Hiroshi Matsuoka, Akio Aoki | 1989-05-16 |
| 4825059 | Apparatus for recording and reproducing information | Hitoshi Kurihara, Kenichi Suzuki | 1989-04-25 |
| 4800546 | Optical information record/regenerating apparatus with device for prohibiting movement of optical head | Satoshi Shikichi, Akio Aoki | 1989-01-24 |
| 4800258 | Information recording-reproducing apparatus | Kenichi Suzuki | 1989-01-24 |