Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8136916 | Image forming apparatus | Yusuke Nemoto, Akira Saito, Yoshiyuki Shishido, Yukitaka Watarai, Hiroyuki Hiratsuka +2 more | 2012-03-20 |
| 6811889 | Magneto-optical recording medium having a GDFECO readout magnetic film | Yasumori Hino, Yuuichi Fukamachi, Masahiro Birukawa | 2004-11-02 |
| 6644187 | Printer and sheet conveying device therefor | Toyoo Okamoto, Akira Saito | 2003-11-11 |
| 6521357 | Magneto-optical recording medium | Yasumori Hino, Yuuichi Fukamachi, Masahiro Birukawa | 2003-02-18 |
| 6399227 | Magneto-optical recording medium | Yasumori Hino, Yuuichi Fukamachi, Masahiro Birukawa | 2002-06-04 |
| 6146740 | Magnetic recording medium and method of fabricating the same | Masahiro Birukawa | 2000-11-14 |
| 5993937 | Magneto-optic recording medium and method of fabricating the same | Masahiro Birukawa | 1999-11-30 |
| 5821004 | Magneto-optical recording medium and recording and reading out process using the same | Yasumori Hino, Masahiro Birukawa, Norio Miyatake | 1998-10-13 |
| 5724338 | Rewritable disk-shaped optical recording medium | Masahiro Birukawa, Norio Miyatake, Yuuichi Fukamachi, Yasumori Hino | 1998-03-03 |
| 5679386 | Optical disk formation member for making an optical disk substrate | Motoyoshi Murakami, Masahiro Birukawa | 1997-10-21 |
| 5582891 | Optical disk substrate with land planes of uniform height | Motoyoshi Murakami, Masahiro Birukawa | 1996-12-10 |
| 5518826 | Magneto-optical recording medium and method of manufacturing same | Motoyoshi Murakami, Hidetsugu Kawabata | 1996-05-21 |
| 5422874 | Optical recording disk, and recording/reading apparatus using same | Masahiro Birukawa, Norio Miyatake, Yuuichi Fukamachi, Yasumori Hino | 1995-06-06 |
| 5391431 | Magneto-optical recording medium | Masahiro Birukawa | 1995-02-21 |
| 5144602 | Magneto-optical information recording method and apparatus in which a laser beam oscillates in a track-width direction | Norio Miyatake | 1992-09-01 |
| 4952295 | Method of producing a deposition film of composite material | Hidetsugu Kawabata, Motoyoshi Murakami, Norio Miyatake, Masakazu Yamamoto | 1990-08-28 |