Patents by Inventor Kaname Miwa

Kaname Miwa 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: 11950329
    Abstract: A holding device including a plate-shaped member, a base member, a plurality of heater electrodes disposed in the plate-shaped member, a plurality of electricity supply terminals, a bonding portion, and insulating members. The holding device holds an object on the surface of the plate-shaped member. The plurality of electricity supply terminals disposed in the holding device include N individual electricity supply terminals (N is an integer of 2 or more) electrically connected to respective N heater electrodes of the plurality of heater electrodes, and a common electricity supply terminal electrically connected to all the N heater electrodes. The N individual electricity supply terminals are received in one terminal hole in which the common electricity supply terminal is not received and are insulated from one another by an insulating member. The common electricity supply terminal is received in another terminal hole in which the individual electricity supply terminals are not received.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: April 2, 2024
    Assignee: NITERRA CO., LTD.
    Inventor: Kaname Miwa
  • Patent number: 11631597
    Abstract: A holding apparatus including a holding substrate having a first main face on one side in a thickness direction thereof, and a heat generation section which is disposed in the holding substrate and generates heat when energized. The heat generation section includes a plurality of first heating elements arrayed in a planar direction orthogonal to the thickness direction of the holding substrate, and a second heating element disposed on a side toward the first main face in the thickness direction with respect to the plurality of first heating elements. Any one of the plurality of first heating elements is electrically connected to the second heating element in series through a first via extending in the thickness direction within the holding substrate.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: April 18, 2023
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventor: Kaname Miwa
  • Patent number: 11508600
    Abstract: A holding device includes: a plate-shaped member having a first surface approximately orthogonal to a first direction; heat generating resistors and temperature measuring resistors disposed in respective segments formed by virtually dividing at least part of the plate-shaped member, the segments being arranged in a direction orthogonal to the first direction; and an electricity supply section that forms electricity supply paths for the heat generating resistors and the temperature measuring resistors. The holding device holds an object on the first surface of the plate-shaped member. The position of the temperature measuring resistors in the first direction differs from the position of the heat generating resistors in the first direction. A specific temperature measuring resistor that is at least one of the temperature measuring resistors includes a plurality of resistor elements disposed at different positions in the first direction and connected to one another in series.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: November 22, 2022
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventor: Kaname Miwa
  • Patent number: 11013068
    Abstract: A multilayer heating body (1) includes a ceramic substrate (3), an electrode (4), heaters (5, 7), terminals (11, 13, 15, 17), and an electricity supply path (19). Through vias which constitute the electricity supply path include at least one combination of through vias ?, ?, ?, and ? which meets the following conditions (1) and (2). Condition (1): when the ceramic substrate is viewed from the front surface (3a) side toward the back surface (3b) side, the through via ? is located at a position where the through via ? overlaps the through via ?, or in the vicinity of the through via ?. Condition (2): when the ceramic substrate is viewed from the front surface side toward the back surface side, the through via ? is located at a position between the through via ? and the through via ?, or located at a position where the through via ? overlaps the through via ?, or in the vicinity of the through via ?.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: May 18, 2021
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Akifumi Tosa, Yasuhiko Inui, Kaname Miwa, Yosuke Shinozaki
  • Publication number: 20210090930
    Abstract: A holding device includes: a plate-shaped member having a first surface approximately orthogonal to a first direction; heat generating resistors and temperature measuring resistors disposed in respective segments formed by virtually dividing at least part of the plate-shaped member, the segments being arranged in a direction orthogonal to the first direction; and an electricity supply section that forms electricity supply paths for the heat generating resistors and the temperature measuring resistors. The holding device holds an object on the first surface of the plate-shaped member. The position of the temperature measuring resistors in the first direction differs from the position of the heat generating resistors in the first direction. A specific temperature measuring resistor that is at least one of the temperature measuring resistors includes a plurality of resistor elements disposed at different positions in the first direction and connected to one another in series.
    Type: Application
    Filed: April 6, 2018
    Publication date: March 25, 2021
    Applicant: NGK SPARK PLUG CO., LTD.
    Inventor: Kaname MIWA
  • Publication number: 20210007183
    Abstract: A holding device including a plate-shaped member, a base member, a plurality of heater electrodes disposed in the plate-shaped member, a plurality of electricity supply terminals, a bonding portion, and insulating members. The holding device holds an object on the surface of the plate-shaped member. The plurality of electricity supply terminals disposed in the holding device include N individual electricity supply terminals (N is an integer of 2 or more) electrically connected to respective N heater electrodes of the plurality of heater electrodes, and a common electricity supply terminal electrically connected to all the N heater electrodes. The N individual electricity supply terminals are received in one terminal hole in which the common electricity supply terminal is not received and are insulated from one another by an insulating member. The common electricity supply terminal is received in another terminal hole in which the individual electricity supply terminals are not received.
    Type: Application
    Filed: February 12, 2019
    Publication date: January 7, 2021
    Applicant: NGK SPARK PLUG CO., LTD.
    Inventor: Kaname MIWA
  • Publication number: 20200006095
    Abstract: A holding apparatus including a holding substrate having a first main face on one side in a thickness direction thereof, and a heat generation section which is disposed in the holding substrate and generates heat when energized. The heat generation section includes a plurality of first heating elements arrayed in a planar direction orthogonal to the thickness direction of the holding substrate, and a second heating element disposed on a side toward the first main face in the thickness direction with respect to the plurality of first heating elements. Any one of the plurality of first heating elements is electrically connected to the second heating element in series through a first via extending in the thickness direction within the holding substrate.
    Type: Application
    Filed: January 31, 2018
    Publication date: January 2, 2020
    Applicant: NGK SPARK PLUG CO., LTD.
    Inventor: Kaname MIWA
  • Patent number: 10410897
    Abstract: An electrostatic chuck includes an anisotropic heat conductor which is disposed between an attraction substrate and a first heater member, and has an upper surface and a lower surface, and a coefficient of thermal conductivity which varies depending on directions. The anisotropic heat conductor is disposed so that the coefficient of thermal conductivity in a plane direction is larger than the coefficient of thermal conductivity in a thickness direction. Further, the electrostatic chuck includes metal layers which are joined to the anisotropic heat conductor so as to cover the upper surface and the lower surface of the anisotropic heat conductor, and an adhesive layer which is provided on a surface of each metal layer, and joins the metal layer to the attraction substrate or the heater member. Moreover, at least one of the metal layers is a fused metal layer formed by solidifying a melted metal.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: September 10, 2019
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Kaname Miwa, Shota Saito
  • Publication number: 20170359859
    Abstract: A multilayer heating body (1) includes a ceramic substrate (3), an electrode (4), heaters (5, 7), terminals (11, 13, 15, 17), and an electricity supply path (19). Through vias which constitute the electricity supply path include at least one combination of through vias ?, ?, ?, and ? which meets the following conditions (1) and (2). Condition (1): when the ceramic substrate is viewed from the front surface (3a) side toward the back surface (3b) side, the through via ? is located at a position where the through via ? overlaps the through via ?, or in the vicinity of the through via ?. Condition (2): when the ceramic substrate is viewed from the front surface side toward the back surface side, the through via ? is located at a position between the through via ? and the through via ?, or located at a position where the through via ? overlaps the through via ?, or in the vicinity of the through via ?.
    Type: Application
    Filed: June 9, 2016
    Publication date: December 14, 2017
    Inventors: Akifumi TOSA, Yasuhiko INUI, Kaname MIWA, Yosuke SHINOZAKI
  • Patent number: 9691652
    Abstract: A ceramic member, in a carrier device, including: a plurality of ceramic layers; a clamping electrode formed on a first ceramic layer among the plurality of ceramic layers and inside of the plurality of ceramic layers, and configured to attract a dielectric material by electrostatic force; an electric heating element formed on a second ceramic layer, which is more distant from a side holding a carried object than the first ceramic layer among the plurality of ceramic layers, and configured to generate heat using electric power; a power feed port; a land formed on a third ceramic layer among the plurality of ceramic layers, and configured to receive electric power through the power feed port; and a via arranged to pass through at least one of the plurality of ceramic layers and provided as a conductive material to electrically connect the electric heating element with the land.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: June 27, 2017
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Kaname Miwa, Tomonori Niwa, Jun Kurano
  • Publication number: 20170133258
    Abstract: An electrostatic chuck includes an anisotropic heat conductor which is disposed between an attraction substrate and a first heater member, and has an upper surface and a lower surface, and a coefficient of thermal conductivity which varies depending on directions. The anisotropic heat conductor is disposed so that the coefficient of thermal conductivity in a plane direction is larger than the coefficient of thermal conductivity in a thickness direction. Further, the electrostatic chuck includes metal layers which are joined to the anisotropic heat conductor so as to cover the upper surface and the lower surface of the anisotropic heat conductor, and an adhesive layer which is provided on a surface of each metal layer, and joins the metal layer to the attraction substrate or the heater member. Moreover, at least one of the metal layers is a fused metal layer formed by solidifying a melted metal.
    Type: Application
    Filed: June 17, 2015
    Publication date: May 11, 2017
    Inventors: Kaname MIWA, Shota SAITO
  • Patent number: 9276504
    Abstract: A ceramic member, in a carrier device, includes: a plurality of ceramic layers that have insulating properties and are integrally sintered; a clamping electrode formed on a first ceramic layer among the plurality of ceramic layers and inside of the plurality of ceramic layers, and configured to attract a dielectric material by electrostatic force; a power feed port configured to receive a supply of electric power to the clamping electrode from outside of the ceramic member; a land formed on a second ceramic layer, which is different from the first ceramic layer among the plurality of ceramic layers, and configured to receive electric power through the power feed port; and a via arranged to pass through at least one of the plurality of ceramic layers and provided as a conductive material to electrically connect the clamping electrode with the land.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: March 1, 2016
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Kaname Miwa, Tomonori Niwa, Jun Kurano
  • Publication number: 20150021944
    Abstract: A ceramic member, in a carrier device, includes: a plurality of ceramic layers that have insulating properties and are integrally sintered; a clamping electrode formed on a first ceramic layer among the plurality of ceramic layers and inside of the plurality of ceramic layers, and configured to attract a dielectric material by electrostatic force; a power feed port configured to receive a supply of electric power to the clamping electrode from outside of the ceramic member; a land formed on a second ceramic layer, which is different from the first ceramic layer among the plurality of ceramic layers, and configured to receive electric power through the power feed port; and a via arranged to pass through at least one of the plurality of ceramic layers and provided as a conductive material to electrically connect the clamping electrode with the land.
    Type: Application
    Filed: February 28, 2013
    Publication date: January 22, 2015
    Applicant: NGK SPARK PLUG CO., LTD.
    Inventors: Kaname Miwa, Tomonori Niwa, Jun Kurano
  • Publication number: 20150016010
    Abstract: A ceramic member, in a carrier device, including: a plurality of ceramic layers; a clamping electrode formed on a first ceramic layer among the plurality of ceramic layers and inside of the plurality of ceramic layers, and configured to attract a dielectric material by electrostatic force; an electric heating element formed on a second ceramic layer, which is more distant from a side holding a carried object than the first ceramic layer among the plurality of ceramic layers, and configured to generate heat using electric power; a power feed port; a land formed on a third ceramic layer among the plurality of ceramic layers, and configured to receive electric power through the power feed port; and a via arranged to pass through at least one of the plurality of ceramic layers and provided as a conductive material to electrically connect the electric heating element with the land.
    Type: Application
    Filed: February 28, 2013
    Publication date: January 15, 2015
    Applicant: NGK SPARK PLUG CO., LTD.
    Inventors: Kaname Miwa, Tomonori Niwa, Jun Kurano
  • Patent number: 7361258
    Abstract: A flat limiting-current sensor 10 includes a solid electrolyte substrate 22, a negative electrode 34a and a positive electrode 32a. The negative and positive electrodes 34a and 32a, respectively, are disposed on the same side of the solid electrolyte substrate 22. A voltage of 0.8 V is applied between the negative electrode 34a and the positive electrode 32a in order to determine oxygen concentration. The ratio between the area of the negative electrode 34a and the area of the positive electrode 32a is set to 1:2, thereby reducing element resistance to 74% that of the case where the negative electrode and the positive electrode assume the same area. Thus, the measurement accuracy of the flat limiting-current sensor 10 is improved.
    Type: Grant
    Filed: May 18, 1999
    Date of Patent: April 22, 2008
    Assignee: NGK Spark Plug Co., Ltd.
    Inventors: Kaname Miwa, Katsuhiko Horii, Hideaki Yagi
  • Publication number: 20030136676
    Abstract: A flat limiting-current sensor 10 includes a solid electrolyte substrate 22, a negative electrode 34a and a positive electrode 32a. The negative and positive electrodes 34a and 32a, respectively, are disposed on the same side of the solid electrolyte substrate 22. A voltage of 0.8 V is applied between the negative electrode 34a and the positive electrode 32a in order to determine oxygen concentration. The ratio between the area of the negative electrode 34a and the area of the positive electrode 32a is set to 1:2, thereby reducing element resistance to 74% that of the case where the negative electrode and the positive electrode assume the same area. Thus, the measurement accuracy of the flat limiting-current sensor 10 is improved.
    Type: Application
    Filed: May 18, 1999
    Publication date: July 24, 2003
    Inventors: KANAME MIWA, KATSUHIKO HORII, HIDEAKI YAGI