1
Seiji Yonezawa, Norio Ohta, Toshio Niihara, Keiji Kataoka, Masahiko Takahashi, Harukazu Miyamoto, Hirofumi Sukeda, Toshiaki Tsuyoshi: Information recording medium with clock information therein. Hitachi, Antonelli Terry Stout & Kraus, September 28, 1999: US05959943 (83 worldwide citation)

A magneto-optical data recording system comprises magnetic field pulse applying means for applying to a magneto-optic recording medium a magnetic field pulse of a polarity corresponding to code data to be recorded, and means for heating the recording medium in a pulsating manner at a predetermined f ...


2
Seiichi Asada, Hiroyuki Suzuki, Toshio Niihara, Kazuetsu Yoshida, Masaaki Futamoto, Yukio Honda, Norikazu Tsumita, Kazuo Shiiki: Perpendicular magnetic recording medium and fabrication method therefor. Hitachi, Hitachi Maxell, Antonelli Terry & Wands, May 10, 1988: US04743491 (32 worldwide citation)

A perpendicular magnetic recording medium according to this invention comprises an electrically conductive underlayer formed on a non-magnetic substrate, in the case where no high permeability magnetic film is deposited, and a magnetic thin film having a perpendicular magnetic anisotrophy is formed ...


3
Tsuyoshi Kato, Masahiro Ojima, Toshio Niihara: Magneto-optical recording system utilizing a leakage magnetic field of focusing actuator. Hitachi, Antonelli Terry & Wands, June 9, 1987: US04672594 (19 worldwide citation)

In a magneto-optical file memory wherein a storage medium having a vertical magnetic film is irradiated with a laser beam to reverse a magnetization direction of the magnetic film, thereby to write and/or erase information, and a rotation of polarizable face of reflected light from the storage mediu ...


4
Eiji Imai, Yoshiharu Michiura, Toshio Niihara: Motor vehicle roof. Nissan Motor, Thompson Birch Gauthier & Samuels, November 29, 1983: US04417762 (18 worldwide citation)

A main roof panel of motor vehicle roof is bent to form a longitudinally extending groove on each lateral side of the main roof panel. An outer panel of each roof side rail is arranged to serve as a secondary roof panel which supplements the main roof panel, and is joined at the inner end portion th ...


5
Toshimitsu Kaku, Shigeru Nakamura, Masahiko Takahashi, Toshio Niihara, Harukazu Miyamoto, Norio Ohta, Takeshi Nakao, Hirofumi Sukeda, Masahiro Ojima, Takashi Toyooka, Tsuneo Suganuma, Fumiyoshi Kirino, Yoshinori Miyamura: Magneto-optical recording and reproducing method, magneto-optical memory apparatus and magneto-optical recording medium therefor. Hitachi, Antonelli Terry Stout & Kraus, December 14, 1993: US05270987 (14 worldwide citation)

A magnetic field of a polarity corresponding to information to be recorded is applied while a recording spot having a high energy is irradiated to a magneto-optical recording medium to record domains representing the information along a track. The recorded domains are read out by a reproducing spot ...


6
Masahiro Ojima, Toshio Niihara, Hideo Fujiwara: Magneto-optic information storage system utilizing a self-coupled laser. Hitachi, Antonelli Terry & Wands, February 18, 1986: US04571650 (14 worldwide citation)

An optical information storage system wherein information is read from a magneto-optical storage medium by indicating the storage medium with a first laser beam generated by a semiconductor laser and exploiting the self-coupling effect of the semiconductor laser in response to light reflected from t ...


7
Seiji Yonezawa, Norio Ohta, Toshio Niihara, Keiji Kataoka, Masahiko Takahashi, Harukazu Miyamoto, Hirofumi Sukeda, Toshiaki Tsuyoshi: Magneto-optical data recording system. Hitachi, Antonelli Terry Stout & Kraus, December 8, 1992: US05170383 (11 worldwide citation)

A magneto-optical data recording system includes magnetic field pulse applying apparatus for applying to a magneto-optic recording medium a magnetic field pulse of a polarity corresponding to code data to be recorded, and a heating apparatus for heating the recording medium in a pulsating manner at ...


8
Harukazu Miyamoto, Toshio Niihara, Motoyasu Terao, Norio Ohta, Masaaki Kurebayashi: Magneto-optical recording medium. Hitachi, Hitachi Maxell, Antonelli Terry Stout & Kraus, March 13, 2001: US06200673 (9 worldwide citation)

A magneto-optical recording medium having a substrate and a magnetic layer composed of at least a recording layer and a supporting layer and being capable of retrieving information by utilizing the fact that when it is irradiated with a laser beam it produces the magneto-optical effect which affects ...


9
Shinkichi Horigome, Toshio Niihara, Norio Ohta, Yutaka Sugita, Yoshinori Miyamura, Ryoichi Sudo, Hiroaki Miwa, Tetsuo Tajima: Optical recording disk. Hitachi, Antonelli Terry & Wands, December 26, 1989: US04889757 (8 worldwide citation)

In an optical recording disk wherein a resin layer cured with ultraviolet radiation is provided on a surface of a transparent substrate, the present invention consists in that a material having a heat distortion temperature of at least 65.degree. C. is employed for the ultraviolet-cured resin layer. ...


10
Harukazu Miyamoto, Yoshio Suzuki, Toshio Niihara, Norio Ohta, Masahiko Takahashi, Fumiyoshi Kirino, Yumiko Anzai: Method of an apparatus for magneto-optically recording information by changing the position or shape or controlling the diameter of reversed domains. Hitachi, Antonelli Terry Stout & Kraus, June 14, 1994: US05321672 (7 worldwide citation)

A magneto-optical recording device for radiating a laser beam according to recording information onto a magneto-optical recording medium having an easy axis of magnetization in a direction perpendicular to a film face of the recording medium itself to form a reversed domain and record information, w ...