Issued Patents 1997
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5701205 | Shiftable lens system | Sachio Hasushita, Shuji Yoneyama, Takayuki Ito | 1997-12-23 |
| 5664251 | Method of making an aperture plate for a multibeam pattern drawing apparatus | Satoru Tachihara, Tetsuya Nakamura, Takashi Okuyama, Tamihiro Miyoshi, Shinichi Suzuki | 1997-09-02 |
| 5657168 | Optical system of optical information recording/ reproducing apparatus | Makoto Iwaki | 1997-08-12 |
| 5657171 | Optical system of optical information recording/reproducing apparatus | Makoto Iwaki | 1997-08-12 |
| 5644437 | Optical system of optical information recording/reproducing apparatus | Makoto Iwaki | 1997-07-01 |
| 5642223 | Tilting lens system | Sachio Hasushita, Shuji Yoneyama, Takayuki Ito | 1997-06-24 |
| 5638221 | Optical system of optical information recording/reproducing apparatus | Makoto Iwaki | 1997-06-10 |
| 5633852 | Optical data recording and reproducing apparatus including chromatic aberration correction | Junji Kamikubo | 1997-05-27 |
| 5629799 | Chromatic aberration correcting element and its application | Masahiro Oono, Satoru Tachihara, Masato Noguchi, Tsuyoshi Ishikawa | 1997-05-13 |
| 5600494 | Objective lens system of an optical disk device | Wataru Kubo, Suguru Takishima | 1997-02-04 |