Patents by Inventor Kaho Nishimura

Kaho Nishimura has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5969907
    Abstract: A magnetic disk drive comprises a plurality of disks that have a laminated arrangement with equally fixed spaces respectively and are rotatably mounted a disk driving unit that forces the disks to rotate, a plurality of positioners mounted and movable in the direction of the tracks of the disks respectively, a positioner driving unit that drives the positioners so that their respective ends can traverse the tracks, and a plurality of reproducing/recording elements e.g., unitary magnetic heads that are fixed on the respective ends of the positioners and perform read/write operations for the surfaces of recording media of the disks, respectively. Each of the unitary magnetic heads is constructed such that each of said heads has a predetermined inclination is to the respectively corresponding surface of recording media of the disks, preferably by forming a sloping surface on one end of each positioner.Preferably, circuits for controlling the disk driving unit and the magnetic head, etc.
    Type: Grant
    Filed: October 27, 1995
    Date of Patent: October 19, 1999
    Assignee: Fujitsu Limited
    Inventors: Norio Yagi, Yoshihiro Arikawa, Kaho Nishimura
  • Patent number: 5572388
    Abstract: A magnetic disk drive comprises a plurality of disks that have a laminated arrangement with equally fixed spaces respectively and are rotatably mounted a disk driving unit that forces the disks to rotate, a plurality of positioners mounted and movable in the direction of the tracks of the disks respectively, a positioner driving unit that drives the positioners so that their respective ends can traverse the tracks, and a plurality of reproducing/recording elements e.g., unitary magnetic heads that are fixed on the respective ends of the positioners and perform read/write operations for the surfaces of recording media of the disks, respectively. Each of the unitary magnetic heads is constructed such that each of said heads has a predetermined inclination to the respectively corresponding surface of recording media of the disks, preferably by forming a sloping surface on one end of each positioner.Preferably, circuits for controlling the disk driving unit and the magnetic head, etc.
    Type: Grant
    Filed: August 31, 1994
    Date of Patent: November 5, 1996
    Assignee: Fujitsu Limited
    Inventors: Norio Yagi, Yoshihiro Arikawa, Kaho Nishimura