Patents by Inventor Atsushi Yuzuki

Atsushi Yuzuki 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).

  • LED illuminating device and lighting apparatus employing the same
    Patent number: 6601984
    Abstract: An LED illuminating device that includes a light-guiding member formed of a translucent material; an LED element formed of at least one diode disposed on one end of the light-guiding member for emitting light therein; a light-emitting region along the length of the light-guiding member; and a plurality of grooves having a rectangular cross-section and formed in the circumferential surface of the light-guiding member at appropriate intervals in the axial direction. The present invention also provides an LED illuminating appliance of various configurations that employ the LED illuminating device as a light source.
    Type: Grant
    Filed: February 12, 2002
    Date of Patent: August 5, 2003
    Assignee: Estec Co., Ltd.
    Inventors: Yutaka Yamamoto, Atsushi Yuzuki, Kazuaki Saito
  • LED illuminating device and lighting apparatus employing the same
    Publication number: 20020131275
    Abstract: An LED illuminating device that includes a light-guiding member formed of a translucent material; an LED element formed of at least one diode disposed on one end of the light-guiding member for emitting light therein; a light-emitting region along the length of the light-guiding member; and a plurality of grooves having a rectangular cross-section and formed in the circumferential surface of the light-guiding member at appropriate intervals in the axial direction. The present invention also provides an LED illuminating appliance of various configurations that employ the LED illuminating device as a light source.
    Type: Application
    Filed: February 12, 2002
    Publication date: September 19, 2002
    Applicant: ESTEC CO., LTD.
    Inventors: Yutaka Yamamoto, Atsushi Yuzuki, Kazuaki Saito