Patents by Inventor Hitomi Kawano

Hitomi Kawano 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 diode
    Patent number: 6943379
    Abstract: In a light emitting diode, a blue light emitting element is mounted on a base having a cup through a phosphor-containing mount so that the light emitting element is located within the cup and is mounted on the bottom of the cup through the phosphor-containing mount. The light emitting diode includes a light emitting element and a p electrode. By virtue of the above construction, blue light emitted from the light emitting element can be reflected from the lower surface of the p electrode without being radiated directly from the upper surface of the light emitting element to the outside of the light emitting diode. As a result, the blue light emitted from the light emitting element can be efficiently mixed with yellow light given off from the phosphor in the phosphor-containing mount to provide white light which is radiated to the outside of the light emitting diode with high efficiency.
    Type: Grant
    Filed: March 24, 2003
    Date of Patent: September 13, 2005
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Yoshinobu Suehiro, Hitomi Kawano, Tatsuya Takashima, Yuji Takahashi, Atsuo Hirano
  • Light emitting diode
    Publication number: 20030230757
    Abstract: In a light emitting diode, a blue light emitting element is mounted on a base having a cup through a phosphor-containing mount so that the light emitting element is located within the cup and is mounted on the bottom of the cup through the phosphor-containing mount. The light emitting diode includes a light emitting element and a p electrode. By virtue of the above construction, blue light emitted from the light emitting element can be reflected from the lower surface of the p electrode without being radiated directly from the upper surface of the light emitting element to the outside of the light emitting diode. As a result, the blue light emitted from the light emitting element can be efficiently mixed with yellow light given off from the phosphor in the phosphor-containing mount to provide white light which is radiated to the outside of the light emitting diode with high efficiency.
    Type: Application
    Filed: March 24, 2003
    Publication date: December 18, 2003
    Applicant: Toyoda Gosei Co., Ltd.
    Inventors: Yoshinobu Suehiro, Hitomi Kawano, Tatsuya Takashima, Yuji Takahashi, Atsuo Hirano