Patents by Inventor Yoshihiro Tsujita

Yoshihiro Tsujita 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: 6019621
    Abstract: A highly lubricative sound-absorbing material is produced inexpensively and attenuates sliding noise and vibration noise. The highly lubricative sound-absorbing material comprises a rubber sheet (21) and a highly lubricative coating layer (22) formed directly on a surface of the rubber sheet by coating the surface with a mixture of an adhesive and a fluororesin system coating agent such as an polytetrafluoroethylene resin or the like by a thickness of 1 to 10 .mu.m. The rubber sheet (21) is formed into an annular shape and coated on its surface with the highly lubricative sound-absorbing layer (22) having a thickness of 1 to 10 .mu.m, preferably 3 .mu.m. The rubber sheet (21) is attached to a surface of a cable reel on which a flat cable slides.
    Type: Grant
    Filed: December 10, 1997
    Date of Patent: February 1, 2000
    Assignees: Sumitomo Wiring Systems, Ltd, Nippon Valqua Industries, Ltd.
    Inventors: Shoichi Sugata, Yoshihiro Tsujita
  • Patent number: 4969187
    Abstract: In a telephone set, a base unit has a front recess defined by a bottom and a sloping wall including a front part and a rear part, and a rear recess, and a protrusion is provided on the front part of the sloping wall and extends rearward. A locking piece is provided to extend through an aperture formed in the rear part of the sloping wall of the front recess. The locking piece extends toward the protrusion and is pushed toward the protrusion by a spring. The spring permits the retraction of the locking piece into the enclosure of the base unit. A buffer member having a resiliency is provided in the center of the bottom of the front recess. A front dent provided on the front part of the front convex part engages the protrusion. A rear dent provided on the rear part of the front convex part engages the locking piece.
    Type: Grant
    Filed: June 9, 1989
    Date of Patent: November 6, 1990
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Yoshihiro Hattori, Yoshihiro Tsujita, Masaru Fujita
  • Patent number: 4937408
    Abstract: In a self-illuminating panel switch, a key top is supported by a front panel. The key top has a rear surface on which a character area is printed with one of a dark color or a light color, and the background area is printed with the other of a dark color and a light color. Because the printing is made on the rear or inner surface of the key top, the ink is free from wear or removal.
    Type: Grant
    Filed: May 24, 1989
    Date of Patent: June 26, 1990
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Yoshihiro Hattori, Takashi Murakami, Yoshihiro Tsujita
  • Patent number: 4930694
    Abstract: A device mounting appliance comprising a device and a mounting appliance, the device mounting appliance including at least three combined leg-lugs formed on a mounting surface of the device; recesses formed in the combined leg-lugs, respectively; a fixing lug formed on the mounting surface of the device so as to be positioned within a polygon formed by connecting the combined leg-lugs; a movable lever attached to the mounting appliance, the lever having a hook portion and a wobbling preventing projection and being urged in one direction by a spring; and a guide provided on the mounting appliance and engaged with lugs of the appliance which are fitted into the recesses of the combined leg-lugs when the device on the mounting appliance is slid a predetermined distance, and also engaged with the combined leg-lugs upon such sliding of the device, wherein when the device on the mounting appliance is slid, the lever is once moved by the fixing lug of the device against the spring and then, at the end of the sliding
    Type: Grant
    Filed: June 13, 1989
    Date of Patent: June 5, 1990
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Kunitoshi Yoshitake, Yoshihiro Tsujita, Nobuyuki Kakuta
  • Patent number: 4903325
    Abstract: A portable wireless communication apparatus of new type is provided. The apparatus is composed of a handset type substantially parallelopiped body which is to be used in combination with a battery pack in a portable mode and a support tray installed in a passenger car room for hand-free use. The top surface of the body is provided with a key operating section, a display section and a speaker. All of them are in the user's sight while the apparatus is being used in the hand-free mode. In the portable mode, on the other hand, all the user has to do is only take up the apparatus away from the tray after the key board operation, hold the receiving section against the ear and talk into the transmitting section without changing the grip.
    Type: Grant
    Filed: June 30, 1988
    Date of Patent: February 20, 1990
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Kunitoshi Yoshitake, Yoshihiro Tsujita, Hideyo Ono
  • Patent number: D302274
    Type: Grant
    Filed: December 29, 1987
    Date of Patent: July 18, 1989
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Shinichi Fujita, Tsuyoshi Nakamachi, Yoshihiro Tsujita