Patents by Inventor Makoto Arimura

Makoto Arimura 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 with wedge-shaped inclined shutter slider engaging protrusion and line contact engagement between slider portion and groove or protusion of cartridge body
    Patent number: 5786969
    Abstract: A disc cartridge for a disc-shaped recording medium includes a cartridge body having an opening portion for exposing a portion of a surface of the disc-shaped recording medium contained therein and a shutter for covering and uncovering the opening portion. A slider provided for supporting the shutter, is disposed on the cartridge body and is capable of sliding and is resiliently restored by a spring. The slider is engaged slidably with a groove or protrusion formed along a slide of the cartridge body by way of an engagement part. A portion of an engaging structure between the engagement part of the slider and the cartridge body makes a line contact between a protrusion or protrusion of the engagement part of the slider and the groove or protrusion of the cartridge body.
    Type: Grant
    Filed: February 27, 1997
    Date of Patent: July 28, 1998
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Isamu Fukushima, Hiroshi Masuda, Makoto Arimura