Patents by Inventor Junichi Miyahara

Junichi Miyahara 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: 10462850
    Abstract: A method of manufacturing a ceramic sintered body, includes: a film forming step of forming, on a surface of a heat-resistant metal material, a metal coating film made of a metal material having a standard free energy of formation of metal carbides lower than that of the heat-resistant metal material; a molding step of disposing the heat-resistant metal material provided with the coating film in the film forming step at a predetermined position in powder that serves as a starting material of a ceramic base, and molding a ceramic green body by press-molding the powder; and a sintering step of generating a ceramic sintered body by sintering the ceramic green body molded in the molding step.
    Type: Grant
    Filed: October 24, 2011
    Date of Patent: October 29, 2019
    Assignee: NHK Spring Co., Ltd.
    Inventors: Satoshi Hirano, Toshihiro Tachikawa, Junichi Miyahara, Toshihiko Hanamachi
  • Patent number: 10276410
    Abstract: A substrate support device formed of a metal and having a high withstand voltage and a high thermal resistance is provided. A substrate support device according to the present invention includes a plate section formed of a metal; a shaft section connected to the plate section and formed of a metal; a heating element provided in the plate section; and an insulating film formed on a first surface of the plate section, the first surface opposite to the shaft section, by ceramic thermal spraying. The substrate support device may further include an insulating film formed on a second surface of the plate section which intersects the first surface of the plate section approximately perpendicularly.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: April 30, 2019
    Assignee: NHK SPRING CO., LTD.
    Inventors: Toshihiro Tachikawa, Junichi Miyahara, Kazuhiro Yonekura, Toshihiko Hanamachi, Go Takahara, Jun Futakuchiya, Daisuke Hashimoto
  • Patent number: 9414441
    Abstract: A shaft-equipped heater unit includes a heater plate that heats an object to be heated placed thereon, and a shaft part that supports the heater plate, wherein the shaft part is formed by spraying material powder which constitutes the shaft part on the heater plate at a temperature lower than a melting point of the material powder by heated compressed gas.
    Type: Grant
    Filed: May 29, 2012
    Date of Patent: August 9, 2016
    Assignee: NHK Spring Co., Ltd.
    Inventors: Gou Takahara, Toshihiro Tachikawa, Junichi Miyahara
  • Patent number: 9153463
    Abstract: A substrate support device formed of a metal and having a high withstand voltage and a high thermal resistance is provided. A substrate support device according to the present invention includes a plate section formed of a metal; a shaft section connected to the plate section and formed of a metal; a heating element provided in the plate section; and an insulating film formed on a first surface of the plate section, the first surface opposite to the shaft section, by ceramic thermal spraying. The substrate support device may further include an insulating film formed on a second surface of the plate section which intersects the first surface of the plate section approximately perpendicularly.
    Type: Grant
    Filed: November 25, 2011
    Date of Patent: October 6, 2015
    Assignee: NHK Spring Co., Ltd.
    Inventors: Jun Futakuchiya, Junichi Miyahara, Daisuke Hashimoto
  • Publication number: 20140083995
    Abstract: A shaft-equipped heater unit includes a heater plate that heats an object to be heated placed thereon, and a shaft part that supports the heater plate, wherein the shaft part is formed by spraying material powder which constitutes the shaft part on the heater plate at a temperature lower than a melting point of the material powder by heated compressed gas.
    Type: Application
    Filed: May 29, 2012
    Publication date: March 27, 2014
    Applicant: NHK SPRING CO., LTD.
    Inventors: Gou Takahara, Toshihiro Tachikawa, Junichi Miyahara
  • Publication number: 20130200067
    Abstract: A method of manufacturing a ceramic sintered body, includes: a film forming step of forming, on a surface of a heat-resistant metal material, a metal coating film made of a metal material having a standard free energy of formation of metal carbides lower than that of the heat-resistant metal material; a molding step of disposing heat-resistant metal material provided with the coating film in the film forming step at a predetermined position in powder that serves as a starting material of a ceramic base, and molding a ceramic green body by press-molding the powder; and a sintering step of generating a ceramic sintered body by sintering the ceramic green body molded in the molding step.
    Type: Application
    Filed: October 24, 2011
    Publication date: August 8, 2013
    Applicant: NHK Spring Co., Ltd.
    Inventors: Satoshi Hirano, Toshihiro Tachikawa, Junichi Miyahara, Toshihiko Hanamachi
  • Publication number: 20130134147
    Abstract: A substrate support device formed of a metal and having a high withstand voltage and a high thermal resistance is provided. A substrate support device according to the present invention includes a plate section formed of a metal; a shaft section connected to the plate section and formed of a metal; a heating element provided in the plate section; and an insulating film formed on a first surface of the plate section, the first surface opposite to the shaft section, by ceramic thermal spraying. The substrate support device may further include an insulating film formed on a second surface of the plate section which intersects the first surface of the plate section approximately perpendicularly.
    Type: Application
    Filed: November 25, 2011
    Publication date: May 30, 2013
    Applicant: NHK SPRING CO., LTD.
    Inventors: Jun FUTAKUCHIYA, Junichi Miyahara, Daisuke Hashimoto
  • Patent number: 7372001
    Abstract: A ceramics heater comprises a circular heater plate formed of aluminum nitride and a metal foil heater wire formed of a high-melting metal and having a thickness of 100 ?m to 175 ?m. The heater wire is embedded in the heater plate. The heater wire has an inside portion located near the center of the heater plate and formed in zigzags at first pitches in the circumferential direction of the heater plate and an outside portion located near the outer periphery of the heater plate and formed in zigzags at second pitches in the circumferential direction of the heater plate. The second pitches are shorter than the first pitches.
    Type: Grant
    Filed: December 17, 2002
    Date of Patent: May 13, 2008
    Assignee: NHK Spring Co., Ltd.
    Inventors: Toshihiro Tachikawa, Junichi Miyahara, Toshihiko Hanamachi
  • Publication number: 20040112888
    Abstract: A ceramics heater comprises a circular heater plate formed of aluminum nitride and a metal foil heater wire formed of a high-melting metal and having a thickness of 100 &mgr;m to 175 &mgr;m. The heater wire is embedded in the heater plate. The heater wire has an inside portion located near the center of the heater plate and formed in zigzags at first pitches in the circumferential direction of the heater plate and an outside portion located near the outer periphery of the heater plate and formed in zigzags at second pitches in the circumferential direction of the heater plate. The second pitches are shorter than the first pitches.
    Type: Application
    Filed: December 17, 2002
    Publication date: June 17, 2004
    Applicant: NHK Spring Co., Ltd.
    Inventors: Toshihiro Tachikawa, Junichi Miyahara, Toshihiko Hanamachi