Patents by Inventor Arthur K. Kato

Arthur K. Kato 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).

  • Disc cartridge
    Patent number: 4875128
    Abstract: A disc cartridge including a shell, a disc within the shell, a disc restraint for selectively restraining the drive may be inserted to move the restraint is provided with a cover attached to the restraint for engaging the release pin, moving the restraint in response to movement of the release pin and closing the opening to prevent the entrance of contaminants into the shell.
    Type: Grant
    Filed: July 11, 1988
    Date of Patent: October 17, 1989
    Assignees: Minnesota Mining and Manufacturing Company, Sony Corporation
    Inventors: Vurnen Leonard, Arthur K. Kato, Kiyoshi Ohmori, Keisuke Fujiwara, Yutaka Soda
  • Magnetic recording disk cartridge
    Patent number: D307893
    Type: Grant
    Filed: December 2, 1988
    Date of Patent: May 15, 1990
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Arthur K. Kato, Vurnen J. Leonard, Osamu Sakurai, Osamu Koizumi