Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9984717 | Optical information recording device and optical information recording method | Toshiki Ishii | 2018-05-29 |
| 9940966 | Optical information reproduction device and optical information reproduction method | Shinji Fujita | 2018-04-10 |