Patents by Inventor Toshihiko Hanamachi

Toshihiko Hanamachi 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).

  • Publication number: 20220026151
    Abstract: A plate includes: a main body; a flow channel provided in the main body and configured to flow inert gas therein; a cover configured to cover a surface of the main body where the flow channel is formed; a buried member buried in an opening of the flow channel, the buried member including a buried portion fixed to the flow channel and made of dense ceramic, and a flow portion held by the buried portion and configured to let the inert gas flow from an inside to an outside of the main body, at least a part of the flow portion being made of porous ceramic; and a plurality of through holes provided in the flow portion. A ratio of a diameter of an outer circumference of the buried portion to a diameter of a smallest circle among circles including all of the through holes is 1.2 or higher.
    Type: Application
    Filed: December 3, 2019
    Publication date: January 27, 2022
    Applicant: NHK Spring Co., Ltd.
    Inventors: Yoshihito Araki, Shuhei Morota, Toshihiko Hanamachi, Hibiki Yokoyama
  • Publication number: 20220009022
    Abstract: A joining method of joins a main body and a cover, the main body being a flat plate and made of aluminum or an aluminum alloy and including a passage through which a medium for promoting heat exchange is circulated, and the cover being a flat plate and made of aluminum or an aluminum alloy and configured to cover the passage of the main body. The method includes: a covering step of covering the main body with the cover; and a diffusion bonding step of joining the main body and the cover by diffusion bonding under a condition in which a joining temperature is 500° C. or higher and 640° C. or lower, and a joining surface pressure is 0.7 MPa or higher. Each of a joining surface of the main body and a joining surface of the cover has a flatness of 0.2 or less.
    Type: Application
    Filed: December 13, 2019
    Publication date: January 13, 2022
    Applicant: NHK Spring Co., Ltd.
    Inventors: Toshihiko Hanamachi, Daisuke Fujino, Masaru Takimoto, Yoshihito Araki, Masahiro Fujii
  • Publication number: 20210398839
    Abstract: A stage includes a base material having a first surface and a second surface adjacent to the first surface, and an insulating film including a plurality of particles, each of the plurality of particles having a flat surface. The flat surface included in the insulating film is provided along the first surface and the second surface. The base material includes a third surface in a direction 180 degrees opposite to the first surface, and a part of the flat surface included in the insulating film is provided along the third surface, and a surface obtained by extending the first surface and a surface obtained by extending the second surface intersect at 90 degrees. The base material includes a third surface in a direction 180 degrees opposite to the first surface, and a part of the flat surface included in the insulating film is provided along the third surface.
    Type: Application
    Filed: September 1, 2021
    Publication date: December 23, 2021
    Inventors: Toshihiko HANAMACHI, Shuhei MOROTA, Masaru TAKIMOTO, Yoshihito ARAKI, Hibiki YOKOYAMA, Masahiro FUJII
  • Patent number: 11201040
    Abstract: A substrate supporting unit is provided. The substrate supporting unit possesses a shaft, a first heater, and a stage. The first heater is located in the shaft and is configured to heat an upper portion of the shaft. The stage is located over the shaft and includes a first plate, a second plate over the first plate, and a second heater between the first plate and the second plate.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: December 14, 2021
    Assignee: NHK SPRING CO., LTD.
    Inventors: Go Takahara, Toshihiko Hanamachi, Arata Tatsumi
  • Publication number: 20210324889
    Abstract: A joined body includes: a main body section including a wall section forming a passage along which a medium for accelerating heat exchange flows; and a cover configured to cover a surface of the main body section, the cover including: a covering section provided on a side facing the main body section and configured to cover the surface; a groove section provided on the side facing the main body section and configured to accommodate an end portion of the wall section; and a stirred joint section provided on a side opposite to a side where the covering section and the groove section are provided, the stirred joint section being at least partly frictionally stirred by a depth reaching a bottom of the groove section from a surface on a side opposite to the side facing the main body section and bonded to the end portion of the wall section.
    Type: Application
    Filed: October 23, 2019
    Publication date: October 21, 2021
    Applicant: NHK Spring Co., Ltd.
    Inventors: Masaru Takimoto, Toshihiko Hanamachi, Junichi Nakayama
  • Publication number: 20210292911
    Abstract: A member for a plasma processing device includes: an aluminum base material; and an oxide film formed on the aluminum base material and having a porous structure, the oxide film including a first oxide film formed on a surface of the aluminum base material, a second oxide film formed on the first oxide film, and a third oxide film formed on the second oxide film, wherein the first oxide film is harder than the second oxide film and the third oxide film, and a hole formed in each of the first oxide film, the second oxide film and the third oxide film is sealed.
    Type: Application
    Filed: July 17, 2019
    Publication date: September 23, 2021
    Applicants: NHK Spring Co., Ltd., IZUMI TECHNO INC.
    Inventors: Toshihiko Hanamachi, Shuhei Morota, Go Takahara, Masaru Takimoto, Hibiki Yokoyama, Hiroshi Mitsuda, Yoshihito Araki, Kengo Ajisawa
  • Publication number: 20210235550
    Abstract: A heater comprises a folded heater wire, a first insulator provided on the folded heater wire, a metal sheath in contact with a part of the first insulator, a first insulating member arranged in parallel to a part of a first end of the folded heater wire taken out from a first end of the metal sheath, a second insulating member arranged in parallel to a part of the first insulating member and parallel to a part of a second end of the folded heater wire taken out from the first end of the metal sheath, a third insulating member arranged in parallel to a part of the first insulating member and the second insulating member, and bundle the first insulating member and the second insulating member, and a cylindrical member arranged in parallel to a part of the metal sheath and the third insulating member.
    Type: Application
    Filed: April 16, 2021
    Publication date: July 29, 2021
    Inventors: Toshihiko HANAMACHI, Arata TATSUMI, Kenji SEKIYA, Naoya AIKAWA, Masaya TAKANASHI
  • Publication number: 20210217638
    Abstract: Disclosed is a stage including a first supporting plate, a second supporting plate under the first supporting plate, a shaft under the second supporting plate and overlapping with the first supporting plate and the second supporting plate, and at least one sheath heater passing through the second supporting plate. The at least one sheath heater is arranged so as to extend on a first surface and a second surface which are parallel to an upper surface of the second supporting plate and which are different in distance from the first supporting plate from each other.
    Type: Application
    Filed: March 31, 2021
    Publication date: July 15, 2021
    Inventors: Toshihiko HANAMACHI, Arata TATSUMI, Kenji SEKIYA, Naoya AIKAWA, Masaya TAKANASHI
  • Publication number: 20200043638
    Abstract: A heather unit including a small diameter sheath heater with improved reliability is provided. The heater unit includes a first substrate having a first joint surface and a second substrate having a second joint surface being joined together, a groove arranged on at least one of the first joint surface or the second joint surface, and a sheath heater arranged inside the groove. The sheath heater includes a metal sheath, a heating wire having a band shape, the heating wire arranged with a space within the metal sheath so as to rotate with respect to an axis direction of the metal sheath, an insulating material arranged in the space, and connection terminals arranged at one end of the metal sheath, the connection terminals electrically connected with both ends of the heating wire respectively.
    Type: Application
    Filed: October 10, 2019
    Publication date: February 6, 2020
    Inventors: Toshihiko HANAMACHI, Kenji SEKIYA, Go TAKAHARA, Naoya AIKAWA, Yuta KISARA, Arata TATSUMI
  • Publication number: 20200045779
    Abstract: A small diameter sheath heater with improved reliability is provided. The sheath heater according to one embodiment of the present invention includes a metal sheath, a heating wire having a band shape, the heating wire arranged with a gap within the metal sheath so as to rotate with respect to an axis direction of the metal sheath, an insulating material arranged in the gap, and connection terminals arranged at one end of the metal sheath, the connection terminals electrically connected with both ends of the heating wire respectively.
    Type: Application
    Filed: October 15, 2019
    Publication date: February 6, 2020
    Inventors: Toshihiko HANAMACHI, Kenji SEKIYA, Daisuke HASHIMOTO, Satoshi HIRANO, Masaru TAKIMOTO, Go TAKAHARA, Yoshihito ARAKI, Arata TATSUMI, Takashi KAWASAKI, Yuki TOYAMA, Satoshi ANZAI
  • Publication number: 20190385827
    Abstract: A substrate supporting unit is provided. The substrate supporting unit possesses a shaft, a first heater, and a stage. The first heater is located in the shaft and is configured to heat an upper portion of the shaft. The stage is located over the shaft and includes a first plate, a second plate over the first plate, and a second heater between the first plate and the second plate.
    Type: Application
    Filed: August 28, 2019
    Publication date: December 19, 2019
    Inventors: Go TAKAHARA, Toshihiko HANAMACHI, Arata TATSUMI
  • 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: 10290529
    Abstract: A heater unit having high in-plane temperature uniformity is provided. A heater unit includes a first heater part, a second heater part controlled independently of the first heater part, a base arranged with a groove in a region between the first heater part and the second heater part, and a cover part arranged at an opening end of the groove and providing a closed space with the groove. In addition, an insulating layer covering the first heater part and the second heater part, and an electrostatic chuck attached to the base via the insulating layer may be further included. In addition, the closed space provided by the cover part and the groove may be a vacuum.
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: May 14, 2019
    Assignee: NHK SPRING CO., LTD.
    Inventors: Toshihiko Hanamachi, Naoya Aikawa
  • Patent number: 10279441
    Abstract: A plate with a passage and the like capable of shortening a process time than a previous one and of suppressing leakage from or contamination to the passage are provided. The plate with the passage is a plate in which the passage for causing a fluid to circulate therein is formed, and includes a body plate formed of a metal or an alloy and in which a groove serving as the passage is provided, a cover plate that covers the groove, and a deposition layer that is formed such that metal or alloy powder is accelerated with a gas and is sprayed on the body plate and the cover plate in a solid phase, and covers the cover plate.
    Type: Grant
    Filed: July 6, 2011
    Date of Patent: May 7, 2019
    Assignee: NHK Spring Co., Ltd.
    Inventor: 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
  • Publication number: 20180226285
    Abstract: A heater unit having high in-plane temperature uniformity is provided. A heater unit includes a first heater part, a second heater part controlled independently of the first heater part, a base arranged with a groove in a region between the first heater part and the second heater part, and a cover part arranged at an opening end of the groove and providing a closed space with the groove. In addition, an insulating layer covering the first heater part and the second heater part, and an electrostatic chuck attached to the base via the insulating layer may be further included. In addition, the closed space provided by the cover part and the groove may be a vacuum.
    Type: Application
    Filed: April 9, 2018
    Publication date: August 9, 2018
    Inventors: Toshihiko HANAMACHI, Naoya AIKAWA
  • Patent number: 9551071
    Abstract: A substrate support device includes a plate portion including a heater plate that includes a heating element provided in the heater plate, and also including a first cooling plate provided on a bottom surface of the heater plate and having a first flow path, and a second cooling plate provided on a top surface of the heater plate and having a second flow path; and a shaft portion supporting the plate portion and including a line connected to the heating element to supply an electric current to the heating element, and a tube supplying a coolant to the first cooling plate and the second cooling plate, the line and the tube being provided inside the shaft portion.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: January 24, 2017
    Assignee: NHK SPRING CO., LTD.
    Inventors: Toshihiko Hanamachi, Daisuke Hashimoto, Yasuaki Ishioka
  • Publication number: 20150376783
    Abstract: A substrate support device includes a plate portion including a heater plate that includes a heating element provided in the heater plate, and also including a first cooling plate provided on a bottom surface of the heater plate and having a first flow path, and a second cooling plate provided on a top surface of the heater plate and having a second flow path; and a shaft portion supporting the plate portion and including a line connected to the heating element to supply an electric current to the heating element, and a tube supplying a coolant to the first cooling plate and the second cooling plate, the line and the tube being provided inside the shaft portion.
    Type: Application
    Filed: September 4, 2015
    Publication date: December 31, 2015
    Inventors: Toshihiko HANAMACHI, Daisuke HASHIMOTO, Yasuaki ISHIOKA
  • Patent number: 9162251
    Abstract: A lamination includes a substrate formed of a metal or alloy, an intermediate layer formed on a surface of the substrate and is formed of a metal or alloy that is softer than the substrate, and a metal film deposited by accelerating a powder material of a metal or alloy together with a gas heated to a temperature lower than the melting point of the powder material and spraying it onto the intermediate layer while keeping it in a solid phase.
    Type: Grant
    Filed: April 6, 2012
    Date of Patent: October 20, 2015
    Assignee: NHK Spring Co., Ltd.
    Inventors: Satoshi Hirano, Yuichiro Yamauchi, Masaru Akabayashi, Toshihiko Hanamachi
  • Publication number: 20140134448
    Abstract: The laminated body includes a ceramic base member having an insulating property, an intermediate layer including metal or alloy as a main component formed on a surface of the ceramic base member, and a metal film layer (a circuit layer and a cooling fin) formed on a surface of the intermediate layer by accelerating a powder of metal or alloy with a gas and spraying and depositing the powder on the surface of the intermediate layer as the powder is in a solid state.
    Type: Application
    Filed: July 11, 2012
    Publication date: May 15, 2014
    Applicant: NHK SPRING CO., LTD.
    Inventors: Yuichiro Yamauchi, Satoshi Hirano, Shinji Saito, Toshihiko Hanamachi