Patents by Inventor Masaru YONEDA

Masaru YONEDA 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).

  • Display device
    Patent number: 10032394
    Abstract: Provided is a display device that includes an LED board on which a plurality of LED chips arranged in a matrix shape are mounted and an LED cover that covers a surface of the LED board where the LED chips is mounted and that is applied, as an LED display unit displaying a state of operation, for an electronic device, wherein the LED cover includes a front surface portion with a back surface arranged to face the LED chips, the back surface having grid-shaped ribs projected to form a plurality of recessed light guide holes at locations corresponding to the LED chips and characters printed on a front surface of the front surface portion adjacent to locations corresponding to bottom surfaces of the light guide holes, wherein each of the light guide holes is a tapered hole of which opening area is decreased toward the bottom surface, and the bottom surfaces are satin finished.
    Type: Grant
    Filed: November 28, 2013
    Date of Patent: July 24, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masaru Yoneda, Yutaka Mizutani, Atsutomo Hayamizu
  • DISPLAY DEVICE
    Publication number: 20160293070
    Abstract: Provided is a display device that includes an LED board on which a plurality of LED chips arranged in a matrix shape are mounted and an LED cover that covers a surface of the LED board where the LED chips is mounted and that is applied, as an LED display unit displaying a state of operation, for an electronic device, wherein the LED cover includes a front surface portion with a back surface arranged to face the LED chips, the back surface having grid-shaped ribs projected to form a plurality of recessed light guide holes at locations corresponding to the LED chips and characters printed on a front surface of the front surface portion adjacent to locations corresponding to bottom surfaces of the light guide holes, wherein each of the light guide holes is a tapered hole of which opening area is decreased toward the bottom surface, and the bottom surfaces are satin finished.
    Type: Application
    Filed: November 28, 2013
    Publication date: October 6, 2016
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Masaru YONEDA, Yutaka MIZUTANI, Atsutomo HAYAMIZU
  • Signal relay device
    Patent number: D773427
    Type: Grant
    Filed: August 18, 2015
    Date of Patent: December 6, 2016
    Assignee: Mitsubishi Electric Corporation
    Inventors: Atsushi Kondo, Jun Shibuya, Masaru Yoneda
  • Signal relay device
    Patent number: D774016
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: December 13, 2016
    Assignee: Mitsubishi Electric Corporation
    Inventors: Atsushi Kondo, Jun Shibuya, Masaru Yoneda