Patents by Inventor Akinobu Otaka

Akinobu Otaka 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).

  • Patent number: 8993939
    Abstract: A resistance heater is shown and described. The resistance heater may include a body. The body may include at least one heating surface, the heating surface being generally smooth and generally flat and a recess formed in the body, at least a portion of the body having a cross-sectional shape selected from the group consisting of: generally U shape, generally I-shape, and generally H-shape, and where the cross-sectional shape extends along at least a portion of the body.
    Type: Grant
    Filed: March 20, 2012
    Date of Patent: March 31, 2015
    Assignee: Momentive Performance Materials Inc.
    Inventors: Yuji Morikawa, Yoshihiko Matsui, Akinobu Otaka, Takeshi Higuchi, Kensuke Fujimura, Zhong-Hao Lu
  • Publication number: 20120223069
    Abstract: A resistance heater is shown and described. The resistance heater may include a body. The body may include at least one heating surface, the heating surface being generally smooth and generally flat and a recess formed in the body, at least a portion of the body having a cross-sectional shape selected from the group consisting of: generally U shape, generally I-shape, and generally H-shape, and where the cross-sectional shape extends along at least a portion of the body.
    Type: Application
    Filed: March 20, 2012
    Publication date: September 6, 2012
    Applicant: MOMENTIVE PERFORMANCE MATERIALS, INC.
    Inventors: Yuji Morikawa, Yoshihiko Matsui, Akinobu Otaka, Takeshi Higuchi, Kensuke Fujimura, Zhong-Hao Lu
  • Patent number: 8164028
    Abstract: A heater has a smooth heating surface and a recess formed on a second surface opposite to the heating surface. The recess is formed between opposite side walls in a lengthwise direction of the heater. Formation of the recess improves the electrical resistance of the heater and the opposite side walls reinforce the heater and prevent deformation of the heater when it is subjected to high temperatures in a semiconductor wafer processing device. The heater has substantially the same width along its lengthwise direction. This improves the control of heat pattern design, because the terminal end portions do not have an expanded shape.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: April 24, 2012
    Assignee: Momentive Performance Materials Inc.
    Inventors: Yuji Morikawa, Yoshihiko Matsui, Akinobu Otaka, Takeshi Higuchi, Kensuke Fujimura
  • Publication number: 20090200288
    Abstract: A heater has a smooth heating surface and a recess formed on a second surface opposite to the heating surface. The recess is formed between opposite side walls in a lengthwise direction of the heater. Formation of the recess improves the electrical resistance of the heater and the opposite side walls reinforce the heater and prevent deformation of the heater when it is subjected to high temperatures in a semiconductor wafer processing device. The heater has substantially the same width along its lengthwise direction. This improves the control of heat pattern design, because the terminal end portions do not have an expanded shape.
    Type: Application
    Filed: January 16, 2009
    Publication date: August 13, 2009
    Inventors: Yuji Morikawa, Yoshihiko Matsui, Akinobu Otaka, Takeshi Higuchi, Kensuke Fujimura
  • Patent number: 7397648
    Abstract: An electrostatic chuck comprises a main body with a mounting surface and an opposed surface facing away from the mounting surface. At least one chucking electrode extends along the mounting surface of the main body and a first heater layer extends along the opposed surface of the main body. The electrostatic chuck can be used to heat and electrostatic ally attract a work piece, such as a wafer, to a work piece support surface during various processing techniques.
    Type: Grant
    Filed: November 10, 2004
    Date of Patent: July 8, 2008
    Assignee: Momentive Performance Materials Inc.
    Inventors: Akinobu Otaka, Kazuyoshi Yamazaki
  • Publication number: 20070181065
    Abstract: An etch resistant heater for use in a wafer processing assembly with an excellent ramp rate of at least 20° C. per minute. The heater is coated with a protective overcoating layer allowing the heater to have a radiation efficiency above 70% at elevated heater temperatures of >1500° C., and an etch rate in NF3 at 600° C. of less than 100 A/min.
    Type: Application
    Filed: October 18, 2006
    Publication date: August 9, 2007
    Applicant: General Electric Company
    Inventors: Akinobu Otaka, Takeshi Higuchi, Sridhar Ramaprasad Prasad, Wei Fan, Marc Schaepkens, Douglas A. Longworth
  • Publication number: 20060098379
    Abstract: An electrostatic chuck comprises a main body with a mounting surface and an opposed surface facing away from the mounting surface. At least one chucking electrode extends along the mounting surface of the main body and a first heater layer extends along the opposed surface of the main body. The electrostatic chuck can be used to heat and electrostatic ally attract a work piece, such as a wafer, to a work piece support surface during various processing techniques.
    Type: Application
    Filed: November 10, 2004
    Publication date: May 11, 2006
    Inventors: Akinobu Otaka, Kazuyoshi Yamazaki