Issued Patents All Time
Showing 51–60 of 60 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5439293 | Rail construction for machine tool | Akinori Hoshino | 1995-08-08 |
| 5440536 | Optical disk apparatus for producing information recorded on a recording track | Noboru Ito, Shinichi Tanaka, Hidenori Wada, Hideki Hayashi | 1995-08-08 |
| 5430701 | Optical disk apparatus for optically recording or reproducing information on an optical recording medium | Noboru Ito, Shinichi Tanaka, Hidenori Wada, Hideki Hayashi | 1995-07-04 |
| 5418774 | Optical head system and its optical disc | Shunji O'Hara, Takashi Ishida, Noboru Ito | 1995-05-23 |
| 5347504 | Optical disk apparatus for optically recording or reproducing information on an optical recording medium | Noboru Ito, Shinichi Tanaka, Hidenori Wada, Hideki Hayashi | 1994-09-13 |
| 5345072 | Focus detection device for reading information from an optical recording medium | Hideki Hayashi, Shinichi Tanaka, Noboru Ito, Yoshiaki Komma | 1994-09-06 |
| 5255260 | Optical recording apparatus employing stacked recording media with spiral grooves and floating optical heads | Noboru Yamada, Isao Satoh, Yasuhiro Gotoh | 1993-10-19 |
| 5231617 | Optical information recording and reproducing apparatus and method of recording and reproducing information in an optical disk unit | Isao Satoh, Noboru Yamada, Yasuhiro Gotoh | 1993-07-27 |
| 5148421 | Optical head | Isao Satoh, Noboru Itoh | 1992-09-15 |
| 4991919 | Optical head apparatus including concentric, periodic grating in a waveguide | Seiji Nishiwaki, Yoshinao Taketomi, Shinji Uchida, Takaaki Tomita, Taketoshi Yonezawa | 1991-02-12 |