Patents by Inventor Michiru Hatakenaka

Michiru Hatakenaka 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).

  • Light-emitting component and its manufacturing method
    Patent number: 8405318
    Abstract: In a light emitting component, a resistor element is formed on the back surface of a substrate and its resistance value is adjusted to make the light intensity of a light emitting element (LED) in a predetermined range. A constant electric current circuit comprised of the resistor element and a transistor supplies the constant electric current to an LED, and the LED and the transistor are formed on a unit insulating substrate. In the case where the unit insulating substrate is rectangular in shape, one pair of opposite sides are x in length, the other pair of opposite sides are y in length and the ratio value of x/y is in the range of 1-1.25. Further, this light emitting component is provided with two resistor elements and both resistor elements are subjected to a resistor value adjustment.
    Type: Grant
    Filed: February 15, 2008
    Date of Patent: March 26, 2013
    Assignee: Koa Corporation
    Inventors: Michiru Hatakenaka, Takeyoshi Oba, Toshiharu Takayama, Shizuo Yamamoto
  • LIGHT-EMITTING COMPONENT AND ITS MANUFACTURING METHOD
    Publication number: 20100039044
    Abstract: In a light emitting component, a resistor element is formed on the back surface of a substrate and its resistance value is adjusted to make the light intensity of a light emitting element (LED) in a predetermined range. A constant electric current circuit comprised of the resistor element and a transistor supplies the constant electric current to an LED, and the LED and the transistor are formed on a unit insulating substrate. In the case where the unit insulating substrate is rectangular in shape, one pair of opposite sides are x in length, the other pair of opposite sides are y in length and the ratio value of x/y is in the range of 1-1.25. Further, this light emitting component is provided with two resistor elements and both resistor elements are subjected to a resistor value adjustment.
    Type: Application
    Filed: February 15, 2008
    Publication date: February 18, 2010
    Inventors: Michiru Hatakenaka, Takeyoshi Oba, Toshiharu Takayama, Shizuo Yamamoto