Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6493297 | Multibeam optical disk record and reproduction apparatus and method | Soichi Isono, Satoshi Kawamura, Kiyoshi Honda, Toshimitsu Kaku, Hitoshi Komatsu +3 more | 2002-12-10 |
| 6200673 | Magneto-optical recording medium | Harukazu Miyamoto, Motoyasu Terao, Norio Ohta, Masaaki Kurebayashi | 2001-03-13 |
| 5959943 | Information recording medium with clock information therein | Seiji Yonezawa, Norio Ohta, Keiji Kataoka, Masahiko Takahashi, Harukazu Miyamoto +2 more | 1999-09-28 |
| 5914198 | Magneto-optical recording medium having dielectric layers with different indices of refraction | Harukazu Miyamoto, Norio Ohta, Fumiyoshi Kirino | 1999-06-22 |
| 5886958 | Information recording apparatus and method for modulated magneto-optical recording medium | Seiji Yonezawa, Norio Ohta, Keiji Kataoka, Masahiko Takahashi, Harukazu Miyamoto +2 more | 1999-03-23 |
| 5726955 | Magneto optical recording medium apparatus and method utilizing light pulse magnetic modulation recording | Seiji Yonezawa, Norio Ohta, Keiji Kataoka, Masahiko Takahashi, Harukazu Miyamoto +2 more | 1998-03-10 |
| 5654058 | Magneto-optical disk | Fumiyoshi Kirino, Harukazu Miyamoto, Shigenori Okamine, Noriyuki Ogihara, Masahiko Takahashi +1 more | 1997-08-05 |
| 5579292 | Magneto-optical data recording apparatus using a sample-servo system for applying heating pulses to record data | Seiji Yonezawa, Norio Ohta, Keiji Kataoka, Masahiko Takahashi, Harukazu Miyamoto +2 more | 1996-11-26 |
| 5473581 | Magneto-optical data recording system continuously irradiating optical pulsers | Seiji Yonezawa, Norio Ohta, Keiji Kataoka, Masahiko Takahashi, Harukazu Miyamoto +2 more | 1995-12-05 |
| 5462811 | Magneto-optical recording media and mangeto-optical device using the media | Harukazu Miyamoto, Makoto Miyamoto, Keikichi Andoo, Masahiro Ojima | 1995-10-31 |
| 5434844 | Magneto-optical recording media and magneto-optical recording device using the same | Harukazu Miyamoto, Keikichi Andoo, Masahiro Ojima | 1995-07-18 |
| 5321672 | Method of an apparatus for magneto-optically recording information by changing the position or shape or controlling the diameter of reversed domains | Harukazu Miyamoto, Yoshio Suzuki, Norio Ohta, Masahiko Takahashi, Fumiyoshi Kirino +1 more | 1994-06-14 |
| 5270987 | Magneto-optical recording and reproducing method, magneto-optical memory apparatus and magneto-optical recording medium therefor | Toshimitsu Kaku, Shigeru Nakamura, Masahiko Takahashi, Harukazu Miyamoto, Norio Ohta +7 more | 1993-12-14 |
| 5263015 | Magneto-optical recording media and overwrite recording method using the same | Harukazu Miyamoto, Makoto Miyamoto, Keikichi Andoo, Tsuyoshi Toda, Atsushi Saito +3 more | 1993-11-16 |
| 5179546 | Magneto-optical disk and process for manufacturing the same | Yumiko Anzai, Yoshinori Miyamura, Harukazu Miyamoto, Norio Ohta | 1993-01-12 |
| 5170383 | Magneto-optical data recording system | Seiji Yonezawa, Norio Ohta, Keiji Kataoka, Masahiko Takahashi, Harukazu Miyamoto +2 more | 1992-12-08 |
| 4923765 | Magneto-optical recording medium | Shinji Takayama, Katsuhiro Kaneko, Yutaka Sugita | 1990-05-08 |
| 4889757 | Optical recording disk | Shinkichi Horigome, Norio Ohta, Yutaka Sugita, Yoshinori Miyamura, Ryoichi Sudo +2 more | 1989-12-26 |
| 4880694 | Magneto-optical recording material | Shinji Takayama, Katsuhiro Kaneko, Yutaka Sugita | 1989-11-14 |
| 4743491 | Perpendicular magnetic recording medium and fabrication method therefor | Seiichi Asada, Hiroyuki Suzuki, Kazuetsu Yoshida, Masaaki Futamoto, Yukio Honda +2 more | 1988-05-10 |
| 4672594 | Magneto-optical recording system utilizing a leakage magnetic field of focusing actuator | Tsuyoshi Kato, Masahiro Ojima | 1987-06-09 |
| 4571650 | Magneto-optic information storage system utilizing a self-coupled laser | Masahiro Ojima, Hideo Fujiwara | 1986-02-18 |
| 4417762 | Motor vehicle roof | Eiji Imai, Yoshiharu Michiura | 1983-11-29 |