Patents by Inventor Yoshinobu Sekiguci

Yoshinobu Sekiguci 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 substrate, semiconductor device, light emitting diode and producing method therefor
    Patent number: 7622363
    Abstract: A semiconductor substrate including a gallium arsenide layer is obtained by executing a step of preparing a first substrate having a separating layer constituted of germanium and a gallium arsenide layer on the separating layer, a step of preparing a bonded substrate by bonding the first substrate and a second substrate, and a step of dividing the bonded substrate at a portion of the separating layer.
    Type: Grant
    Filed: April 30, 2004
    Date of Patent: November 24, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takao Yonehara, Yoshinobu Sekiguci
  • Semiconductor substrate, semiconductor device, light emitting diode and producing method therefor
    Publication number: 20060166468
    Abstract: A semiconductor substrate including a gallium arsenide layer is obtained by executing a step of preparing a first substrate having a separating layer constituted of germanium and a gallium arsenide layer on the separating layer, a step of preparing a bonded substrate by bonding the first substrate and a second substrate, and a step of dividing the bonded substrate at a portion of the separating layer.
    Type: Application
    Filed: April 30, 2004
    Publication date: July 27, 2006
    Applicant: Canon Kabushiki Kaisha
    Inventors: Takao Yonehara, Yoshinobu Sekiguci