Patents by Inventor Noriko Nakazawa

Noriko Nakazawa 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).

  • Recording/reproducing apparatus, magnetic head and tape cartridge
    Patent number: 5872692
    Abstract: A recording/reproducing apparatus in which recording/reproducing characteristics for the magnetic tape may be stabilized and data errors may be reliably prevented form occurrence. The recording/reproducing apparatus has a magnetic head 81 in which a pair of magnetic core halves 83A, 83B of a magnetic material are abutted to each other via a gap material g to form a magnetic core. Magnetic tape guide units 82A, 82B are provided in the vicinity of the magnetic head 81. The magnetic tape guide units 82A, 82B are formed with magnetic tape suction openings 82b, 82b closed by a magnetic tape 88 adapted for having a sliding contact with the tape slide surface 82a. The magnetic tape suction openings 82b, 82b suck the magnetic tape 88 running on the tape slide surfaces 82a, 82a of the magnetic tape guide units 82A, 82B.
    Type: Grant
    Filed: May 16, 1997
    Date of Patent: February 16, 1999
    Assignee: Sony Corporation
    Inventors: Kengo Saito, Ikushi Nakashima, Osamu Koizumi, Masanori Sato, Shinji Masugi, Noriko Nakazawa
  • Recording/reproducing apparatus, magnetic head and tape cartridge
    Patent number: 5847906
    Abstract: A recording/reproducing apparatus in which recording/reproducing characteristics for the magnetic tape may be stabilized and data errors may be reliably prevented form occurrence. The recording/reproducing apparatus has a magnetic head 81 in which a pair of magnetic core halves 83A, 83B of a magnetic material are abutted to each other via a gap material g to form a magnetic core. Magnetic tape guide units 82A, 82B are provided in the vicinity of the magnetic head 81. The magnetic tape guide units 82A, 82B are formed with magnetic tape suction openings 82b, 82b closed by a magnetic tape 88 adapted for having a sliding contact with the tape slide surface 82a. The magnetic tape suction openings 82b, 82b suck the magnetic tape 88 running on the tape slide surfaces 82a, 82a of the magnetic tape guide units 82A, 82B.
    Type: Grant
    Filed: May 16, 1997
    Date of Patent: December 8, 1998
    Assignee: Sony Corporation
    Inventors: Kengo Saito, Ikushi Nakashima, Osamu Koizumi, Masanori Sato, Shinji Masugi, Noriko Nakazawa