Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6414751 | Displacement measurement apparatus | Tatsuji Kurogama, Makoto Banno | 2002-07-02 |
| 6411587 | Optical pickup optical system, optical pickup apparatus, coupling optical system, coupling optical system lens and recording/reproduction apparatus | Toshiyuki Kojima, Koji Honda | 2002-06-25 |
| 6400672 | Method for recording/reproducing optical information recording medium, optical pickup apparatus, objective lens and design method of objective lens | Hiroyuki Yamazaki, Shinichiro Saito | 2002-06-04 |
| 6366542 | Optical pickup apparatus and objective lens | Toshiyuki Kojima | 2002-04-02 |