Patents Assigned to NGK Insulators
  • Publication number: 20230277989
    Abstract: A separation membrane complex includes a support, a separation membrane, and a coating membrane. The support includes a porous portion and a dense portion that are arranged continuously. The separation membrane is provided on the porous portion of the support. The separation membrane has an end portion that is in contact with the dense portion. The coating membrane is composed by a layered inorganic compound. The coating membrane coats a boundary portion between the dense portion and the separation membrane.
    Type: Application
    Filed: May 15, 2023
    Publication date: September 7, 2023
    Applicant: NGK INSULATORS, LTD.
    Inventors: Kenichi NODA, Ko KOBAYASHI
  • Publication number: 20230278022
    Abstract: A honeycomb structure 20 according to the present invention includes: a ceramic honeycomb structure portion 10 including: an outer peripheral wall 12; a partition wall 13, the partition wall 13 defining a plurality of cells 16; and a pair of electrode layers 14a, 14b each arranged so as to extend in a form of a band on an outer surface of the outer peripheral wall 12, across a central axis of the honeycomb structure portion 10, wherein the honeycomb structure portion 10 is provided in an end portion region(s) extending in a direction from the one end face and/or the other end face to a center in a flow path length direction of the honeycomb structure portion 10, and the honeycomb structure portion 10 comprises at least one low porosity portion 4 having a lower porosity than an average porosity of the whole honeycomb structure portion 10.
    Type: Application
    Filed: February 21, 2023
    Publication date: September 7, 2023
    Applicants: NGK Insulators, Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Taro OSADA, Yukiharu MORITA, Takayuki INOUE, Yuko KOZAKI, Yuto NAITO, Takahiro SADAMITSU
  • Publication number: 20230279799
    Abstract: An electrically heating support according to the present invention includes: a ceramic honeycomb structure, the honeycomb structure including an outer peripheral wall and a partition wall arranged on an inner side of the outer peripheral wall, the partition wall defining a plurality of cells each extending from one end face to other end face to form a flow path; and a pair of metal electrodes 5 for applying a voltage to a honeycomb structure, wherein each of the pair of metal electrodes 5 includes: at least one connection portion 50 fixed to an outer peripheral surface of the honeycomb structure; and at least one drawer portion 51 extending from the connection portion 50, and wherein the drawer portion is provided with at least two bent portions 510, and extending directions of ridgelines of the at least two bent portions 510 are different from each other.
    Type: Application
    Filed: February 14, 2023
    Publication date: September 7, 2023
    Applicants: NGK Insulators, Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Takashi TAKADA, Shinobu SHIMASAKI
  • Publication number: 20230278929
    Abstract: A composite sintered body contains a silicon phase and a cordierite phase. In the composite sintered body, I1/(I1+I2) is not smaller than 0.70 and not larger than 0.80, where I1 and I2 represent peak intensities of a (111) plane of silicon and a (110) plane of cordierite, respectively, which are obtained by the X-ray diffraction method. Further, in the composite sintered body, a median diameter of silicon particles, based on a volume standard, is not smaller than 9 ?m.
    Type: Application
    Filed: February 1, 2023
    Publication date: September 7, 2023
    Applicant: NGK Insulators, Ltd.
    Inventors: Kazuya HOSODA, Kyohei ATSUJI, Kisuke YAMAMOTO, Takahiro TOMITA
  • Publication number: 20230282497
    Abstract: A feeder member includes an electrode-side terminal, an insert, a connector, and a cable. The electrode-side terminal is made of a high-melting-point metal containing material, and is joined to an electrode embedded in a ceramic base. Each of the insert, the connector and the cable is made of a Cu containing material. The insert has a joined portion that is directly joined to the electrode-side terminal without using a brazing material, and a hole portion that is provided on a side opposite to the joined portion. The connector has a socket portion that is electrically connected to a conductive member differing from the feeder member, and a recessed portion that is provided on a side opposite to the socket portion. The cable has one end joined to the hole portion of the insert, and the other end joined to the recessed portion of the connector.
    Type: Application
    Filed: February 6, 2023
    Publication date: September 7, 2023
    Applicant: NGK Insulators, Ltd.
    Inventors: Mitsuru KOJIMA, Hiroshi TAKEBAYASHI
  • Publication number: 20230284341
    Abstract: A ceramic heater includes: a ceramic plate having a wafer placement surface on a surface thereof; zone heaters embedded in the ceramic plate so as to correspond to zones defined by dividing the surface of the ceramic plate into multiple sections; terminals connected to ends of the zone heaters via internal wires of the ceramic plate; terminal collection regions in which the plurality of terminals are collectively arranged; and non-terminal regions in which no terminal is arranged. The ceramic heater includes, as the zone heaters, a terminal-collection-region zone heater provided in a zone corresponding to the terminal collection regions, and a non-terminal regions zone heater provided in a zone corresponding to the non-terminal regions.
    Type: Application
    Filed: January 20, 2023
    Publication date: September 7, 2023
    Applicant: NGK Insulators, Ltd.
    Inventors: Masaki ISHIKAWA, Hiroya SUGIMOTO
  • Patent number: 11746404
    Abstract: Provided is a method for producing a beryllium copper alloy ring including: providing a columnar forged material made of a beryllium copper alloy, opening a hole from a center of an upper surface of the columnar forged material in a direction parallel to a central axis of the columnar forged material to make a ring intermediate product, performing ring forging on the ring intermediate product, thereby expanding the hole such that a reduction ratio of 63% or more is achieved to make a ring-forged product, wherein the reduction ratio is specified by the following expression: P=100×(T?t)/T, wherein P represents the reduction ratio (%), T represents a thickness (mm) of the ring intermediate product, and t represents a thickness (mm) of the ring-forged product, and performing a solution annealing and a precipitation hardening on the ring-forged product to make the beryllium copper alloy ring.
    Type: Grant
    Filed: March 17, 2021
    Date of Patent: September 5, 2023
    Assignee: NGK INSULATORS, LTD.
    Inventor: Kensuke Ishii
  • Patent number: 11733201
    Abstract: A gas sensor includes a solid electrolyte body with oxygen ion conductivity, a gas flow portion (ranging from a gas inlet port to a second inner cavity), a particular gas detector (including a main pump cell, a measurement pump cell, an auxiliary pump cell, etc.), and a control device. Prior to startup of the gas sensor, the control device sets electric power supplied to a heater such that a temperature difference between a temperature of the heater and a preset target temperature becomes zero, and determines, on the basis of the set electric power, whether temperature raising control of supplying the set electric power to the heater is to be executed.
    Type: Grant
    Filed: November 12, 2021
    Date of Patent: August 22, 2023
    Assignee: NGK INSULATORS, LTD.
    Inventors: Ryo Onishi, Yasuhide Kojima
  • Patent number: 11731111
    Abstract: When the porous ceramic structure contains Co together with Fe or Mn, the Co content is higher than or equal to 0.1 mass % and lower than or equal to 3.0 mass % in terms of Co3O4, and when the porous ceramic structure contains Co without containing Fe and Mn, the Co content is higher than or equal to 0.2 mass % and lower than or equal to 6.0 mass % in terms of Co3O4. The Ce content is higher than or equal to 0.1 mass % and lower than or equal to 10 mass % in terms of CeO2. The Fe/Mn/Co ratio is higher than or equal to 0.8 and lower than or equal to 9.5. The porous ceramic structure contains more than or equal to 0.03 percent and less than or equal to 2.5 percent by mass of Zn in terms of ZnO.
    Type: Grant
    Filed: March 15, 2021
    Date of Patent: August 22, 2023
    Assignee: NGK INSULATORS, LTD.
    Inventors: Yunie Izumi, Kennichi Hidaka, Akihiro Miura
  • Patent number: 11731912
    Abstract: A porous ceramic structure includes a porous honeycomb structure composed primarily of cordierite, and Ce- and Zr-containing particles fixedly attached to the honeycomb structure. The Ce- and Zr-containing particles contain Ce and Zr. The Ce- and Zr-containing particles have a fixedly attached portion located inside the honeycomb structure and a protrusion contiguous with the fixedly attached portion and protruding from the honeycomb structure.
    Type: Grant
    Filed: August 2, 2021
    Date of Patent: August 22, 2023
    Assignee: NGK INSULATORS, LTD.
    Inventors: Yunie Izumi, Kennichi Hidaka, Akihiro Miura
  • Patent number: 11733434
    Abstract: The present invention relates to an optical component and a transparent sealing member. An optical component has: at least one optical element; and a package that houses therein the optical element. The package has: a mounting board on which the optical element is mounted; a transparent sealing member bonded on the mounting board; a recessed section surrounding the optical element mounted on the mounting board; and a refractive index matching agent applied to the inside of the recessed section. The package has at least one groove in communication with the outside from the recessed section.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: August 22, 2023
    Assignee: NGK INSULATORS, LTD.
    Inventors: Yoshio Kikuchi, Makoto Iwai
  • Patent number: 11732627
    Abstract: An electrically heated catalytic device is provided. The electrically heated catalytic device includes a cylindrical catalyst carrier. Two electrode units are attached to a side surface of the catalyst carrier. The side surface of the catalyst carrier includes slits each extending in an axial direction of the catalyst carrier. Each slit is filled with a filler that has a lower Young's modulus than the catalyst carrier. An average Young's modulus is a value obtained by averaging the Young's modulus of the filler at different portions of the slit over an entire length of the slit in the axial direction. The slits include a first slit and a second slit. The average Young's modulus of the first slit is a first value. The average Young's modulus of the second slit is a second value that is smaller than the first value.
    Type: Grant
    Filed: March 15, 2022
    Date of Patent: August 22, 2023
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, NGK INSULATORS, LTD.
    Inventors: Takahiro Sadamitsu, Shingo Iwasaki
  • Patent number: 11733202
    Abstract: A gas sensor includes: a metal tubular body including a through hole allowing a sensor element to penetrate in an axial direction; and a powder compact being filled between an inner surface of the tubular body constituting the through hole and the sensor element, and sealing between both end portion sides of the sensor element. At least a range of a through hole inner surface to come into contact with the powder compact filled between the inner surface and the sensor element is a stripe-like recessed and projecting region in which projecting portions and recessed portions are alternately arranged in the axial direction and those portions extend along an inner circumferential direction of the tubular body. An interval between the projecting portions in the axial direction is 50 ?m to 150 ?m. The following expressions are satisfied, 0.3 ?m?Rz1?10 ?m, and Rz1/Rz2?2.0.
    Type: Grant
    Filed: March 22, 2021
    Date of Patent: August 22, 2023
    Assignee: NGK INSULATORS, LTD.
    Inventors: Hiroki Adachi, Yuka Wada
  • Patent number: 11731911
    Abstract: A porous material includes aggregate particles and a binding material. In the aggregate particles, oxide films containing cristobalite are provided on surfaces of particle bodies that are silicon carbide particles or silicon nitride particles. The binding material binds the aggregate particles together in a state where pores are provided therein. The porous material contains at least one of copper, calcium, and nickel as an ancillary component.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: August 22, 2023
    Assignee: NGK INSULATORS, LTD.
    Inventors: Mika Tsuboi, Yunie Izumi, Takahiro Tomita
  • Publication number: 20230261204
    Abstract: Provided is a negative electrode for use in a zinc secondary battery, including a negative electrode active material containing ZnO particles and Zn particles, and a nonionic water-absorbing polymer in an amount of 0.01 to 6.0 parts by weight on a solid basis, based on the content of the ZnO particles being 100 parts by weight.
    Type: Application
    Filed: April 3, 2023
    Publication date: August 17, 2023
    Applicant: NGK INSULATORS, LTD.
    Inventors: Hiroshi MATSUBAYASHI, Sota SHIMIZU, Eri ASANO, Eiichi HIRAYAMA
  • Publication number: 20230261251
    Abstract: Provided is a negative electrode for use in a zinc secondary battery, including a negative electrode active material containing ZnO particles and Zn particles, and a nonionic water-absorbing polymer, and at least a portion of the ZnO particles is covered with the nonionic water-absorbing polymer.
    Type: Application
    Filed: April 3, 2023
    Publication date: August 17, 2023
    Applicant: NGK INSULATORS, LTD.
    Inventors: Hiroshi MATSUBAYASHI, Sota SHIMIZU, Eiichi HIRAYAMA, Sana IWAI
  • Patent number: 11724415
    Abstract: The present invention is a sintering method of a ceramic for sintering characterized by forming a layer containing a carbon powder on a surface of an article consisting of a ceramic for sintering, and then irradiating with laser a surface of the carbon powder-containing layer of a lamination obtained.
    Type: Grant
    Filed: March 19, 2021
    Date of Patent: August 15, 2023
    Assignees: Japan Fine Ceramics Center, NORITAKE CO., LIMITED, TOTO LTD., NGK INSULATORS, LTD., NGK SPARK PLUG CO., LTD.
    Inventors: Teiichi Kimura, Satoshi Suehiro
  • Patent number: 11728536
    Abstract: A storage battery container is provided with an air supply part having an air supply port provided to the bottom surface, a variable heat dissipation device that balances accumulated heat inside the storage battery, and an air discharge part of a rear surface having an air discharge port correspondingly provided to a heat release part of the variable heat dissipation device. The air supply part puts the air supply port in an open state when power is being supplied, and puts the air supply port in a closed state when the power supply stops. The air discharge part puts the air discharge port in an open state when the variable heat dissipation device is actuated, and puts the air discharge port in a closed state when the actuation of the variable heat dissipation device stops.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: August 15, 2023
    Assignee: NGK INSULATORS, LTD.
    Inventor: Motohiro Fukuhara
  • Patent number: 11725557
    Abstract: An electric heating type carrier including a conductive honeycomb structure portion and a pair of electrode layers, wherein in a cross-section orthogonal to the direction in which the cells extend, the honeycomb structure portion is classified into following three regions: a first resistance region having a contact portion with a first electrode layer, a second resistance region having a contact portion with a second electrode layer, and a third resistance region that does not come into contact with either the first electrode layer or the second electrode layer, and traverses the cross-section so as to be sandwiched between the first resistance region and the second resistance region, and has a higher electrical resistance per unit volume (1 cm3) than an electrical resistance per unit volume (1 cm3) of the first resistance region and the second resistance region.
    Type: Grant
    Filed: March 16, 2022
    Date of Patent: August 15, 2023
    Assignee: NGK INSULATORS, LTD.
    Inventors: Hirotaka Saito, Naoki Yoshida
  • Publication number: 20230251172
    Abstract: A method for searching for statistics correlated with a strength of a pillar-shaped honeycomb formed body after firing having predetermined design specifications including a step of measuring two or more parameters for 90% or more of the polygonal cells excluding partial cells at the outermost periphery, and calculating two or more statistics for each parameter measured; a step of firing each of the plurality of pillar-shaped honeycomb formed bodies before firing under predetermined conditions to prepare a plurality of pillar-shaped honeycomb formed bodies after firing; a step of evaluating a correlation between the two or more statistics and the strength of the plurality of pillar-shaped honeycomb formed bodies after firing; and a step of determining a statistic having the highest correlation with the strength of the pillar-shaped honeycomb formed bodies after firing having the predetermined design specifications from among the two or more statistics.
    Type: Application
    Filed: December 19, 2022
    Publication date: August 10, 2023
    Applicant: NGK Insulators, Ltd.
    Inventors: Shota UNO, Hiroshi NINOMIYA