Patents by Inventor Keiji KOHATA

Keiji KOHATA 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).

  • Tactile-sensation transmitting device, terminal device, and tactile-sensation transmitting method
    Patent number: 10078369
    Abstract: A terminal device includes a touch panel and excitation piezoelectric elements. The excitation piezoelectric elements are attached to a touch panel, and generate standing-wave vibration in the touch panel to give a user a tactile sensation when the user has performed a touch operation on the touch panel. The terminal device further includes a pressurization piezoelectric element that is attached to the inner side of the touch panel than the excitation piezoelectric elements, and pressurizes the touch panel thereby changing the vibration mode of the standing-wave vibration including the position of antinodes of the standing-wave vibration.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: September 18, 2018
    Assignee: FUJITSU LIMITED
    Inventors: Keiji Kohata, Toru Kohei
  • TACTILE-SENSATION TRANSMITTING DEVICE, TERMINAL DEVICE, AND TACTILE-SENSATION TRANSMITTING METHOD
    Publication number: 20170090575
    Abstract: A terminal device includes a touch panel and excitation piezoelectric elements. The excitation piezoelectric elements are attached to a touch panel, and generate standing-wave vibration in the touch panel to give a user a tactile sensation when the user has performed a touch operation on the touch panel. The terminal device further includes a pressurization piezoelectric element that is attached to the inner side of the touch panel than the excitation piezoelectric elements, and pressurizes the touch panel thereby changing the vibration mode of the standing-wave vibration including the position of antinodes of the standing-wave vibration.
    Type: Application
    Filed: August 29, 2016
    Publication date: March 30, 2017
    Applicant: FUJITSU LIMITED
    Inventors: Keiji KOHATA, Toru HOHEI
  • PORTABLE TERMINAL DEVICE, BATTERY CHARGER AND ADAPTOR TO SET PORTABLE TERMINAL DEVICE THEREON
    Publication number: 20080238366
    Abstract: The disclosure relates to a portable terminal device, such as a cell phone terminal device, and an adaptor in which the portable terminal device is disposed thereon. The portable terminal device includes a projection on an end of its bodies matching with a shape of a hook incorporated in the adaptor on which the portable terminal device is set. A battery charger to charge the portable terminal device set thereon includes a terminal electrically connected with a charging terminal of the portable terminal device, a wall for holding the portable terminal device set thereon, and a hook incorporated in a main body of the battery charger, hinged at an end of the portable terminal device, having a shape matching with the projection formed on the body of the portable terminal device.
    Type: Application
    Filed: March 18, 2008
    Publication date: October 2, 2008
    Applicant: FUJITSU LIMITED
    Inventor: Keiji KOHATA