Patents by Inventor Akira Katami

Akira Katami 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).

  • Data recording cartridge including a flexible magnetic recording medium
    Patent number: 5432662
    Abstract: A data recording cartridge provided with a cartridge case and a recording medium accommodated therein, wherein the cartridge case is molded from at least one of the following materials:(1) composition of uniformly dispersed styrol resin and a polycarbonate resin;(2) composition of uniformly dispersed styrol resin and a nitrogen containing resin;(3) composition of uniformly dispersed styrol resin and an ester resin;(4) styrol resin styrene of which is partially substituted with .alpha.-methylstyrene;(5) styrene-maleic anhydride copolymer modified with rubber;(6) composition of polypropylene polymer containing an inorganic filler dispersed therein;(7) copolymer of N-substituted maleimide resin and styrol resin; and(8) composition of uniformly dispersed N-substituted maleimide resin and styrol resin.
    Type: Grant
    Filed: October 25, 1993
    Date of Patent: July 11, 1995
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Yoshitake Kato, Kazuya Fukunaga, Akira Katami, Shinichiro Oda
  • Data recording cartridge including a flexible magnetic recording medium
    Patent number: 5317467
    Abstract: A data recording cartridge provided with a cartridge case and a recording medium accommodated therein, wherein the cartridge case is molded from at least one of the following materials:(1) composition of uniformly dispersed styrol resin and a polycarbonate resin;(2) composition of uniformly dispersed styrol resin and a nitrogen containing resin;(3) composition of uniformly dispersed styrol resin and an ester resin;(4) styrol resin styrene of which is partially substituted with .alpha.-methylstyrene;(5) styrene-maleic anhydride copolymer modified with rubber;(6) composition of polypropylene polymer containing an inorganic filler dispersed therein;(7) copolymer of N-substituted maleimide resin and styrol resin; and(8) composition of uniformly dispersed N-substituted maleimide resin and styrol resin.
    Type: Grant
    Filed: May 17, 1991
    Date of Patent: May 31, 1994
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Yoshitake Kato, Kazuya Fukunaga, Akira Katami, Shinichiro Oda