Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8295135 | Optical disc, optical disc manufacturing method, optical disc recording device and optical disc reproduction device | Masaru Yamaoka, Mamoru Shoji, Makoto Usui, Mitsuro Moriya | 2012-10-23 |
| 8270285 | Optical disc, optical disc manufacturing method, optical disc recording device and optical disc reproduction device | Masaru Yamaoka, Mamoru Shoji, Makoto Usui, Mitsuro Moriya | 2012-09-18 |
| 8130627 | Optical disc production apparatus | Hironobu Nishimura, Masahiko Kotoyori, Masahiro Nakamura, Kazuya Hisada, Eiji Ohno | 2012-03-06 |
| 8040785 | Optical disc, optical disc manufacturing method, optical disc recording device and optical disc reproduction device | Masaru Yamaoka, Mamoru Shoji, Makoto Usui, Mitsuro Moriya | 2011-10-18 |
| 8007867 | Multilayered information recording medium and process for producing said multilayered information recording medium, and apparatus for producing multilayered information recording medium and screen constituting said production apparatus for producing multilayered information recording medium | Yuuko Tomekawa, Morio Tomiyama | 2011-08-30 |
| 7957253 | Multiple recording layers optical disc having physical position information of pre-recording marks | Masaru Yamaoka, Mamoru Shoji, Kenji Kondo | 2011-06-07 |
| 7923090 | Optical information recording medium and method for manufacturing the same | Kazuhiro Hayashi, Sou Miyata | 2011-04-12 |
| 7907502 | Optical information recording medium, its information recording/reproducing method, and information recording/reproducing device | Morio Tomiyama, Eiji Ohno | 2011-03-15 |
| 7854819 | Multilayer information recording medium and production method therefor | Yuuko Tomekawa, Morio Tomiyama, Masahiko Tsukuda | 2010-12-21 |
| 7782746 | Optical information recording medium and method for manufacturing same | Eiji Ohno, Shinya Abe | 2010-08-24 |
| 7380257 | Optical information recording medium | Kazuya Hisada, Eiji Ohno | 2008-05-27 |
| 7180842 | Optical disc cutting apparatus and method for manufacturing optical disc | Kenzo Ishibashi, Yasumori Hino, Masahiro Birukawa | 2007-02-20 |
| 7161876 | Magneto-optical recording medium, and method for recording information in a recording layer | Motoyoshi Murakami | 2007-01-09 |
| 7101656 | Optical disk master, optical disk substrate stamper, process for production thereof, and magneto-optical recording medium | Masahito Konishi, Koujiro Tanaka | 2006-09-05 |
| 6887547 | Optical information recording medium | Eiji Ohno | 2005-05-03 |
| 6853606 | Magneto-optical storage medium capable of transferring magnetic domain from recording layer to reproducing layer | Motoyoshi Murakami | 2005-02-08 |
| 6788624 | Method and apparatus for reproducing information from a magneto-optical recording medium | Motoyoshi Murakami | 2004-09-07 |
| 6519211 | Magneto-optical recording medium having magnetic domain shrinks and disappears | Motoyoshi Murakami | 2003-02-11 |
| 6018511 | Magneto-optical recording medium and readout method of the same | Kiyoshi Uchida, Motoyoshi Murakami, Masahiro Birukawa | 2000-01-25 |
| 5945228 | Magneto-optical recording medium and method for reproducing thereof | — | 1999-08-31 |
| 5912061 | UV-ray setting resin and a method for manufacturing a magneto-optical disk by the use of the UV-ray setting resin | Kiyoshi Uchida | 1999-06-15 |
| 5814418 | Magneto-optical recording medium and method for reading out information from the same | Yasumori Hino, Masahiro Birukawa | 1998-09-29 |