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).
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Patent number: 11950329Abstract: 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: GrantFiled: February 12, 2019Date of Patent: April 2, 2024Assignee: NITERRA CO., LTD.Inventor: Kaname Miwa
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Patent number: 11631597Abstract: 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: GrantFiled: January 31, 2018Date of Patent: April 18, 2023Assignee: NGK SPARK PLUG CO., LTD.Inventor: Kaname Miwa
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Patent number: 11508600Abstract: 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: GrantFiled: April 6, 2018Date of Patent: November 22, 2022Assignee: NGK SPARK PLUG CO., LTD.Inventor: Kaname Miwa
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Patent number: 11013068Abstract: 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: GrantFiled: June 9, 2016Date of Patent: May 18, 2021Assignee: NGK SPARK PLUG CO., LTD.Inventors: Akifumi Tosa, Yasuhiko Inui, Kaname Miwa, Yosuke Shinozaki
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Publication number: 20210090930Abstract: 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: ApplicationFiled: April 6, 2018Publication date: March 25, 2021Applicant: NGK SPARK PLUG CO., LTD.Inventor: Kaname MIWA
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Publication number: 20210007183Abstract: 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: ApplicationFiled: February 12, 2019Publication date: January 7, 2021Applicant: NGK SPARK PLUG CO., LTD.Inventor: Kaname MIWA
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Publication number: 20200006095Abstract: 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: ApplicationFiled: January 31, 2018Publication date: January 2, 2020Applicant: NGK SPARK PLUG CO., LTD.Inventor: Kaname MIWA
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Patent number: 10410897Abstract: 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: GrantFiled: June 17, 2015Date of Patent: September 10, 2019Assignee: NGK SPARK PLUG CO., LTD.Inventors: Kaname Miwa, Shota Saito
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Publication number: 20170359859Abstract: 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: ApplicationFiled: June 9, 2016Publication date: December 14, 2017Inventors: Akifumi TOSA, Yasuhiko INUI, Kaname MIWA, Yosuke SHINOZAKI
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Patent number: 9691652Abstract: 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: GrantFiled: February 28, 2013Date of Patent: June 27, 2017Assignee: NGK SPARK PLUG CO., LTD.Inventors: Kaname Miwa, Tomonori Niwa, Jun Kurano
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Publication number: 20170133258Abstract: 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: ApplicationFiled: June 17, 2015Publication date: May 11, 2017Inventors: Kaname MIWA, Shota SAITO
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Patent number: 9276504Abstract: 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: GrantFiled: February 28, 2013Date of Patent: March 1, 2016Assignee: NGK SPARK PLUG CO., LTD.Inventors: Kaname Miwa, Tomonori Niwa, Jun Kurano
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Publication number: 20150021944Abstract: 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: ApplicationFiled: February 28, 2013Publication date: January 22, 2015Applicant: NGK SPARK PLUG CO., LTD.Inventors: Kaname Miwa, Tomonori Niwa, Jun Kurano
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Publication number: 20150016010Abstract: 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: ApplicationFiled: February 28, 2013Publication date: January 15, 2015Applicant: NGK SPARK PLUG CO., LTD.Inventors: Kaname Miwa, Tomonori Niwa, Jun Kurano
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Patent number: 7361258Abstract: 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: GrantFiled: May 18, 1999Date of Patent: April 22, 2008Assignee: NGK Spark Plug Co., Ltd.Inventors: Kaname Miwa, Katsuhiko Horii, Hideaki Yagi
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Publication number: 20030136676Abstract: 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: ApplicationFiled: May 18, 1999Publication date: July 24, 2003Inventors: KANAME MIWA, KATSUHIKO HORII, HIDEAKI YAGI