Patents by Inventor Michio Koyama

Michio Koyama 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).

  • BATTERY UNIT, INFORMATION PROCESSING DEVICE, AND METHOD FOR CONTROLLING BATTERY UNIT
    Publication number: 20160329732
    Abstract: A bay battery cell is charged at voltage for driving a personal computer. A USB port is a terminal that is connectable with an external device that is different from the personal computer and supplies power to the external device. A DC-DC converter receives a power input from the bay battery cell, converts the input power into voltage for driving the external device, and supplies the converted power to the external device through the USB port. A switch control circuit drives the DC-DC converter when no power is supplied from the personal computer and no external devices are connected to the USB port.
    Type: Application
    Filed: July 19, 2016
    Publication date: November 10, 2016
    Inventors: Michio Koyama, Masaharu Yamada, Daisuke Yuzawa
  • Semiconductor package
    Patent number: D395423
    Type: Grant
    Filed: March 13, 1997
    Date of Patent: June 23, 1998
    Assignee: Sony Corporation
    Inventors: Michio Koyama, Yukinobu Wataya
  • Semiconductor package
    Patent number: D395638
    Type: Grant
    Filed: January 30, 1997
    Date of Patent: June 30, 1998
    Assignee: Sony Corporation
    Inventors: Michio Koyama, Hajime Ohke
  • Lens for semiconductor element
    Patent number: D421743
    Type: Grant
    Filed: March 19, 1997
    Date of Patent: March 21, 2000
    Assignee: Sony Corporation
    Inventors: Kazuhiko Ueda, Michio Koyama