Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11475917 | Objective lens, optical head device, optical information device, and optical disk system | Yasushi Kobayashi, Kazuhiro Minami | 2022-10-18 |
| 11335372 | Optical disk reproducing device | Tsuyoshi Nakasendo | 2022-05-17 |