Patents by Inventor Takayuki Kamemura

Takayuki Kamemura 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).

  • Semiconductor light-emitting device
    Patent number: 6952025
    Abstract: A small-sized semiconductor light-emitting device of high emission directivity and high output is provided. A portion of a light extraction section of a semiconductor light-emitting device including a pn-junction portion is covered with a light-shielding substance of low conductivity. The electrical resistance of the light-shielding substance is 106 ?m or higher, and the substance contains powder of at least one species selected from metals and pigments. The powder of metal contains at least one species selected from among Al, Cu, Ag, Au, Pt, Ti, Ni, Sn, Pb, Mg, Zn, Fe, Co, and Cr. The powder is a plate-like powder having a thickness falling within a range of 0.001-10 ?m and a length falling within a range of 0.01-100 ?m.
    Type: Grant
    Filed: June 5, 2001
    Date of Patent: October 4, 2005
    Assignee: Showa Denko K.K.
    Inventors: Takayuki Kamemura, Kazuhiro Mitani, Teruyuki Kobayashi, Nobuo Uotani, Kasumi Nakamura, Yuji Itoh
  • Detection-membrane and optical sensor using the same
    Publication number: 20030007890
    Abstract: By forming a detection-membrane with a light reflective layer in which the detection-membrane is a multilayer construction with a protective layer, a detection-membrane can be provided which is able to be used favorably within an optical sensor, will suffer no reduction in mechanical strength as a result of external factors such as physical pressure, high temperature, high humidity or the like, and will cause no deterioration in the characteristics of an optical sensor, and an optical sensor which utilizes such a detection-membrane can also be provided.
    Type: Application
    Filed: April 4, 2001
    Publication date: January 9, 2003
    Inventors: Kazuhiro Mitani, Teruyuki Kobayashi, Takayuki Kamemura, Nobuo Uotani, Yuji Itoh
  • Semiconductor light-emitting device
    Publication number: 20020134986
    Abstract: A small-sized semiconductor light-emitting device of high emission directivity and high output is provided. A portion of a light extraction section of a semiconductor light-emitting device including a pn-junction portion is covered with a light-shielding substance of low conductivity. The electrical resistance of the light-shielding substance is 106 &OHgr;m or higher, and the substance contains powder of at least one species selected from metals and pigments. The powder of metal contains at least one species selected from among Al, Cu, Ag, Au, Pt, Ti, Ni, Sn, Pb, Mg, Zn, Fe, Co, and Cr. The powder is a plate-like powder having a thickness falling within a range of 0.001-10 &mgr;m and a length falling within a range of 0.01-100 &mgr;m.
    Type: Application
    Filed: February 6, 2002
    Publication date: September 26, 2002
    Inventors: Takayuki Kamemura, Kazuhiro Mitani, Teruyuki Kobayashi, Nobuo Uotani, Kasumi Nakamura, Yuji Itoh
  • Comb
    Patent number: D573754
    Type: Grant
    Filed: August 28, 2007
    Date of Patent: July 22, 2008
    Inventor: Takayuki Kamemura