Issued Patents 2019
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10521297 | Optical disc apparatus and optical disc in which user data is recorded in a first space in units of a first length and management information is recorded in a second space in units of a second length different from the first length | Yuji Takagi | 2019-12-31 |
| 10453490 | Optical disc device | Tsuyoshi Nakasendo | 2019-10-22 |
| 10223202 | Optical disc apparatus for recording and reproducing data onto and from an optical disc based on an evaluation value | Yuji Takagi | 2019-03-05 |