Issued Patents All Time
Showing 1–25 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7773343 | Magnetic recording medium, and manufacturing method, manufacturing apparatus, recording and reproduction method, and recording and reproduction apparatus for the same | Masahiro Birukawa | 2010-08-10 |
| 7590031 | Optical recording medium having BCA of write-once information | Norio Miyatake | 2009-09-15 |
| 7535803 | Method for recording to and reproducing from a magnetic recording medium, recording and reproduction device for the same, and magnetic recording medium | — | 2009-05-19 |
| 7436697 | Memory cell, memory using the memory cell, memory cell manufacturing method, and memory recording/reading method | Yasuhiro Gotoh | 2008-10-14 |
| 7414924 | Magneto-optical recording medium having watermark for preventing unauthorized copy | Mitsuaki Oshima, Shinichi Konishi, Shin-ichi Tanaka, Kenji Koishi, Mitsurou Moriya +3 more | 2008-08-19 |
| 7251200 | Apparatus for reproducing information data from magneto-optical recording medium using linear polarized beam | Norio Miyatake | 2007-07-31 |
| 7235313 | Magneto-optical recording medium, method of manufacturing magneto-optical recording medium, method of recording on magneto-optical recording medium, and method of reproduction from magneto-optical recording medium | Masahiro Birukawa | 2007-06-26 |
| 7180831 | Magneto-optical recording medium having a recording layer of columnar structure | Takeshi Sakaguchi, Masahiro Birukawa | 2007-02-20 |
| 7161876 | Magneto-optical recording medium, and method for recording information in a recording layer | Keiji Nishikiori | 2007-01-09 |
| 7151716 | Magneto-optical recording medium having a transfer control layer | Takeshi Sakaguchi, Yasumori Hino | 2006-12-19 |
| 7126886 | Magneto-optical recording medium and method for producing the same | Masahiro Birukawa, Tsutomu Shiratori, Yasuyuki Miyaoka | 2006-10-24 |
| 7012857 | Magneto optical recording medium having a multilayer recording film of different thickness | Yuko Kawaguchi, Yasumori Hino | 2006-03-14 |
| 6975564 | Magneto-optical recording medium for use in domain wall displacement detection system, and method for producing the same | Kiyoshi Uchida, Yasumori Hino, Norio Miyatake | 2005-12-13 |
| 6973015 | Optical disk, method for recording and reproducing additional information to and from optical disk, reproducing apparatus for optical disk, and recording and reproducing apparatus for optical disk | Mitsuaki Oshima, Norio Miyatake | 2005-12-06 |
| 6853606 | Magneto-optical storage medium capable of transferring magnetic domain from recording layer to reproducing layer | Keiji Nishikiori | 2005-02-08 |
| 6826131 | Magneto-optical recording medium having multiple magnetic layers | Yuuko Kawaguchi | 2004-11-30 |
| 6791908 | Magneto-optical recording medium having a transfer control layer | Takeshi Sakaguchi, Yasumori Hino | 2004-09-14 |
| 6788624 | Method and apparatus for reproducing information from a magneto-optical recording medium | Keiji Nishikiori | 2004-09-07 |
| 6767697 | Magneto-optical disk and method for producing same by initializing with a laser having a predetermined wavelength | Kiyoshi Uchida, Yasumori Hino, Norio Miyatake | 2004-07-27 |
| 6747919 | Magneto-optical recording medium, and method and apparatus for producing the same | Yuuko Kawaguchi, Masahiro Birukawa, Tsutomu Shiratori, Yasuyuki Miyaoka | 2004-06-08 |
| 6584046 | Method for reproducing information data from magneto-optical recording medium using linear polarized beam | Mitsuaki Oshima, Shinichi Konishi, Shin-ichi Tanaka, Kenji Koishi, Mitsurou Moriya +3 more | 2003-06-24 |
| 6519211 | Magneto-optical recording medium having magnetic domain shrinks and disappears | Keiji Nishikiori | 2003-02-11 |
| 6504797 | Magneto-optical recording medium having multiple magnetic layers and reproducing method thereof | Takeshi Sakaguchi, Yasumori Hino | 2003-01-07 |
| 6266299 | Magneto-optical disk having write-once identification marks and method for recording thereof | Mitsuaki Oshima, Shinichi Konishi, Shin-ichi Tanaka, Kenji Koishi, Mitsurou Moriya +3 more | 2001-07-24 |
| 6018511 | Magneto-optical recording medium and readout method of the same | Keiji Nishikiori, Kiyoshi Uchida, Masahiro Birukawa | 2000-01-25 |