Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6429972 | Diffraction lens | Toshihiko Kiriki | 2002-08-06 |
| 6411442 | Objective lens for pickup and light pickup apparatus | Tohru Kimura | 2002-06-25 |
| 6404562 | Zoom lens | Minoru Yokota, Masae Sato | 2002-06-11 |
| 6349083 | Near field type optical disk recording reproducing apparatus, optical information recording medium recording reproducing apparatus, pickup apparatus, objective lens | Toshihiko Kiriki | 2002-02-19 |