Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7887993 | Optical information recording medium and recording method thereof | Daisuke Morishita | 2011-02-15 |
| 6990049 | Optical information recording medium, method for recording/reproducing the same, and optical pickup | Yoshikazu Takagishi, Atsuo Shimizu, Ryuichi Sunagawa, Mitsuo Sekiguchi, Isao Matsuda | 2006-01-24 |
| 6874156 | Optical information recording medium | Yoshikazu Takagishi, Atsuo Shimizu, Ryuichi Sunagawa, Mitsuo Sekiguchi, Isao Matsuda | 2005-03-29 |
| 6792613 | Optical information recording medium | Yoshikazu Takagishi, Atsuo Shimizu, Ryuichi Sunagawa, Mitsuo Sekiguchi, Isao Matsuda | 2004-09-14 |
| 6328866 | Ion sensor and ion sensor plate | Shoichiro Hirakuni, Masatsugu Suzuki, Akihiko Mochizuki | 2001-12-11 |