Magnetic Force Probe Patents (Class 977/865)
  • Patent number: 7379326
    Abstract: A high-capacity magnetic memory capable of writing and reading a magnetic record in/from a magnetic recording film according to a perpendicular magnetic recording system at a high speed in a purely-electrically random access manner. In the magnetic memory, a writing-magnetic-field generating means 62 and a writing word line 43 are disposed relative to a perpendicular magnetic recording film 50, and a reading/writing bit-line conductor 41, a magnetoresistive-effect element 20 and a reading word lead conductor 42 are laminated in order on a probe substrate opposed to the perpendicular magnetic recording film 50. A magnetic probe 30 composed of a carbon nanotube containing a soft magnetic material is disposed relative to the magnetoresistive-effect element 20 in a standing manner, and electrically connected to the reading/writing bit-line conductor.
    Type: Grant
    Filed: May 1, 2003
    Date of Patent: May 27, 2008
    Assignee: UMK Technologies Co., Ltd.
    Inventors: Takashi Ushida, Nobuyuki Mori, Yoshimi Kamijo, Akihiro Okazaki, Akira Mitsuzuka, Rikizou Hatakeyama, Hideaki Ido, Ko Nakajima, Takehiro Takoshima