Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6977018 | Optical information recording medium and its manufacturing method and apparatus | Eiji Ohno, Hidemi Isomura, Hideo Matsumoto, Kazuhiro Hayashi, Kazuo Inoue | 2005-12-20 |
| 6863946 | Optical information recording medium, method for manufacturing the same, and method for recording and/or reproducing optical information | Kazuhiro Hayashi, Eiji Ohno | 2005-03-08 |
| 6743320 | Method and apparatus of optical information recording medium, and optical information recording medium | Kazuhiro Hayashi, Eiji Ohno | 2004-06-01 |
| 6743527 | Optical disk, method for producing the same, and apparatus for producing the same | Kazuhiro Hayashi, Kazuo Inoue, Eiji Ohno | 2004-06-01 |
| 6613170 | Optical information recording medium and its manufacturing method and apparatus | Eiji Ohno, Hidemi Isomura, Hideo Matsumoto, Kazuhiro Hayashi, Kazuo Inoue | 2003-09-02 |