Patents by Inventor Takuji Nakao

Takuji Nakao 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: 6352322
    Abstract: A stand of the swing type is held in a battery compartment cover which has a notch and covers the case and a battery-holding portion, in order to flatten the back surface of the case of a portable liquid crystal display device, so that the presence of batteries in the battery-holding portion can be confirmed without opening the battery compartment cover. The swing type battery compartment cover eliminates undesired space between the battery compartment cover and the batteries. The thickness of the battery compartment cover can be decreased, contributing to decreasing the thickness of the device. A recessed portion is formed on the front surface of the case in an expanded manner for mounting the windshield surrounding the liquid crystal display window, and an ornamental plate is mounted surrounding the windshield that protects the display window to enhance the value of the device.
    Type: Grant
    Filed: April 20, 1999
    Date of Patent: March 5, 2002
    Assignee: Citizen Watch Co., Ltd.
    Inventor: Takuji Nakao
  • Patent number: 6114637
    Abstract: The present invention relates to an improvement made on the structure of a switch manipulator for a liquid-crystal display apparatus. In a liquid-crystal display apparatus includes a liquid-crystal display unit accommodating a liquid-crystal panel and switches used to control the operation of the liquid-crystal display unit are stowed in a case, and at least an image display unit and a switch manipulator used to manipulate the switches are located on the face of the case, the switch manipulator includes at least two switches, the switches are separated from each other, a manipulation button is placed over the separated switches, and first and second button pressers are located near both ends of the manipulation button with substantially the center of said manipulation button as a fulcrum. When the manipulation button is pressed, one of the two switches is selectively turned on or off by the first or second button presser.
    Type: Grant
    Filed: October 31, 1997
    Date of Patent: September 5, 2000
    Assignee: Citizen Watch Co., Ltd.
    Inventors: Takuji Nakao, Katsuo Matsuyama