Issued Patents All Time
Showing 76–100 of 112 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6788635 | Optical recording medium, optical recording method, optical reproducing method, optical recording device, optical reproducing device, and optical recording/reproducing device | Seiji Kobayashi, Masanobu Yamamoto | 2004-09-07 |
| 6723281 | Metal material for electronic parts, electronic parts, electronic apparatuses, and method of processing metal materials | Takashi Ueno | 2004-04-20 |
| 6572957 | Magneto-optical recording medium with four layered recording layer having specific relative magnetic anisotropy values | — | 2003-06-03 |
| 6537637 | Multilayer optical disk | Masahiko Kaneko, Nobuhiko Umezu, Ariyoshi Nakaoki | 2003-03-25 |
| 6501725 | Method of recording/reproducing an information signal | — | 2002-12-31 |
| 6384435 | Data cell region and system region for a semiconductor memory | — | 2002-05-07 |
| 6356524 | Method of recording/reproducing an information signal | — | 2002-03-12 |
| 6324148 | Optical disk and optical information recording/reproducing apparatus | Masahiko Kaneko, Ariyoshi Nakaoki | 2001-11-27 |
| 6272083 | Method of and apparatus for recording/reproducing information signal, recording/reproducing head device. Memory medium, and head element and manufacture thereof | — | 2001-08-07 |
| 6269067 | Method of and apparatus for recording/reproducing information signal recording/reproducing head device memory and head element and manufacture thereof | — | 2001-07-31 |
| 6262962 | Method of and apparatus for recording/reproducing information signal, recording/reproducing head device, memory medium, and head element and manufacture thereof | — | 2001-07-17 |
| 6249503 | Method of and apparatus for recording/reproducing an information signal, recording/reproducing head device, memory medium, and head element | — | 2001-06-19 |
| 6241843 | Multilayer optical disk | Masahiko Kaneko, Nobuhiko Umezu, Ariyoshi Nakaoki | 2001-06-05 |
| 6228457 | Optical data storage medium | Takashi Ueno, Keiichiro Jinushi, Masaaki Iwasaki, Ryohei Miyake | 2001-05-08 |
| 6063468 | Optical recording medium | Toshiyuki Kashiwagi, Minoru Kikuchi | 2000-05-16 |
| 6064632 | Recording/reproducing apparatus and a magneto-optical recording medium for use therewith | Ariyoshi Nakaoki, Akira Kouchiyama | 2000-05-16 |
| 6049521 | Optical recording medium and method for producing same | — | 2000-04-11 |
| 6030678 | Multi-layer optical disk | — | 2000-02-29 |
| 5989670 | Multilayer optical disk | Masahiko Kaneko, Nobuhiko Umezu, Ariyoshi Nakaoki | 1999-11-23 |
| 5987002 | Magneto-optical recording medium and method and apparatus for reproducing data therefrom | Atsushi Fukumoto, Shin Masuhara | 1999-11-16 |
| 5978320 | Recording/reproducing apparatus for use with a photomagnetic recording medium | Ariyoshi Nakaoki, Akira Kouchiyama | 1999-11-02 |
| 5766717 | Multilayer optical disk | Masahiko Kaneko, Nobuhiko Umezu, Ariyoshi Nakaoki | 1998-06-16 |
| 5761187 | Multi-layer optical disk | Masahiko Kaneko, Ariyoshi Nakaoki | 1998-06-02 |
| 5694379 | Magneto-optical recording medium and recording apparatus therefor | Atsushi Fukumoto, Tatsuya Narahara, Shin Masuhara | 1997-12-02 |
| 5448538 | Electromagnet coils having a different inductance during magneto-optical recording and reproducing | Tetsuhiro Sakamoto | 1995-09-05 |