Patents by Inventor Katuaki Shitama

Katuaki Shitama 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: 4719698
    Abstract: An electric shaver comprising a shaver housing comprising a generally rectangular box-like casing and a head casing removably mounted on one end of the box-like casing; a finely perforated stationary shear foil replaceably mounted on the head casing; a reciprocable blade assembly positioned inside the head casing and outside the box-like casing and cooperable with the stationary shear foil to cut bristles entering the head casing through the perforations in the stationary shear foil; an electric drive motor accommodated within the box-like casing and having a drive shaft, said drive shaft having first and second ends opposite to each other and protruding outwards from the motor in opposite directions away from each other; means for connecting the first end of the drive shaft with the blade assembly to permit the blade assembly to undergo oscillation relative to the stationary shear foil; a photoelectric detector comprising a light emitting element and a photoelectric cell for providing an electric output sign
    Type: Grant
    Filed: July 2, 1986
    Date of Patent: January 19, 1988
    Assignee: Kyushu Hitachi Maxell, Ltd.
    Inventors: Kazunori Ninomiya, Katuaki Shitama, Masashi Aoi
  • Patent number: 4360906
    Abstract: A self-propelled record cleaner comprising a cleaning brush, a drive wheel, and a battery-operated motor unit for driving both of the cleaning brush and the drive wheel in the opposite directions with respect to each other. The self-propelled record cleaner has a bearing hole adapted to receive a turntable spindle when the record cleaner is placed on a disc record mounted on the turntable. This self-propelled record cleaner can run on the disc record around the turntable spindle while brushing or cleaning dusts off from the disc record when the battery-operated motor unit is in operation. Some of components of the record cleaners are mounted in a casing at a position where they can be supported above a non-grooved area of the disc record.
    Type: Grant
    Filed: March 23, 1981
    Date of Patent: November 23, 1982
    Assignee: Kyushu Hitachi Maxell, Ltd.
    Inventor: Katuaki Shitama