Issued Patents All Time
Showing 26–50 of 56 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6690626 | Optical disk with magnetic layer separated magnetically between tracks and method of magnetically separating tracks of the optical disk | Tomoyuki Hiroki, Yasushi Hozumi | 2004-02-10 |
| 6650598 | Magnetic head having magnetoresistance device and recording/reproducing apparatus incorporating the same | Hiroshi Sakakima, Kazuo Yokoyama, Masayoshi Hiramoto | 2003-11-18 |
| 6521357 | Magneto-optical recording medium | Yoshihiko Kudoh, Yasumori Hino, Yuuichi Fukamachi | 2003-02-18 |
| 6504796 | Magneto-optical head having thickness of the core same as a track width | Hiroshi Sakakima, Kazuo Yokoyama, Masayoshi Hiramoto | 2003-01-07 |
| 6399227 | Magneto-optical recording medium | Yoshihiko Kudoh, Yasumori Hino, Yuuichi Fukamachi | 2002-06-04 |
| 6307819 | Method of reading magneto-optical recording medium | Yasumori Hino, Norio Miyatake | 2001-10-23 |
| 6269056 | Recording method for a magneto-optical recording medium for position adjustment of a magnetic head | Yasumori Hino, Norio Miyatake | 2001-07-31 |
| 6222797 | Position adjustment method of a magnetic head using magneto-optical recording medium, and optical recording medium | Yasumori Hino, Norio Miyatake | 2001-04-24 |
| 6188649 | Method for reading magnetic super resolution type magneto-optical recording medium | Yasumori Hino, Norio Miyatake | 2001-02-13 |
| 6178151 | Optical head having a reproducing optical system and filter formed by light passing therethrough | Yasumori Hino, Norio Miyatake, Tadashi Nakamura | 2001-01-23 |
| 6146740 | Magnetic recording medium and method of fabricating the same | Yoshihiko Kudoh | 2000-11-14 |
| 6018511 | Magneto-optical recording medium and readout method of the same | Keiji Nishikiori, Kiyoshi Uchida, Motoyoshi Murakami | 2000-01-25 |
| 6018505 | Magneto-optical disc apparatus | Norio Miyatake, Kiyoshi Uchida | 2000-01-25 |
| 5993937 | Magneto-optic recording medium and method of fabricating the same | Yoshihiko Kudoh | 1999-11-30 |
| 5986977 | Method for reading magnetic super resolution type magneto-optical recording medium | Yasumori Hino, Norio Miyatake | 1999-11-16 |
| 5864520 | Magneto-optical recording medium for magnetically induced super resolution | Yuichi Fukamachi | 1999-01-26 |
| 5821004 | Magneto-optical recording medium and recording and reading out process using the same | Yasumori Hino, Yoshihiko Kudoh, Norio Miyatake | 1998-10-13 |
| 5814418 | Magneto-optical recording medium and method for reading out information from the same | Keiji Nishikiori, Yasumori Hino | 1998-09-29 |
| 5748592 | Disk drive apparatus and disk storage medium for high density recording | Yasumori Hino, Norio Miyatake, Tadashi Nakamura | 1998-05-05 |
| 5724338 | Rewritable disk-shaped optical recording medium | Norio Miyatake, Yuuichi Fukamachi, Yoshihiko Kudoh, Yasumori Hino | 1998-03-03 |
| 5706259 | Magneto-optical recording medium for magnetically induced super resolution | Yuichi Fukamachi | 1998-01-06 |
| 5679386 | Optical disk formation member for making an optical disk substrate | Motoyoshi Murakami, Yoshihiko Kudoh | 1997-10-21 |
| 5656370 | Optical recording medium | Motoyoshi Murakami | 1997-08-12 |
| 5582891 | Optical disk substrate with land planes of uniform height | Motoyoshi Murakami, Yoshihiko Kudoh | 1996-12-10 |
| 5565278 | Magneto-optical recording medium | Motoyoshi Murakami, Hidetsugu Kawabata | 1996-10-15 |