Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6822799 | Exposing apparatus and exposing method for microlens array | Kuniaki Okada, Yoshihiro Sekimoto, Yukio Kurata, Hiroshi Nakanishi | 2004-11-23 |
| 6744568 | Objective lens, method for correcting manufacturing error thereof, and optical pick-up device using the same | Yukio Kurata, Takeshi Yamaguchi, Tetsuo Iwaki | 2004-06-01 |
| 6741406 | Objective lens, optical pickup-device equipped with same and assembling method of same | Yukio Kurata, Tetsuo Iwaki | 2004-05-25 |