Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8400894 | Method for writing data on multilayer optical disc and optical disc drive | Hiroaki Shigematsu, Harumitsu Miyashita | 2013-03-19 |
| 7362667 | Optical information reproduction method and apparatus | Emi Kitano, Masayoshi Nakamura, Yasuo Ueda | 2008-04-22 |