Patents Assigned to NGK Insulators
  • COMPOSITE MATERIAL SINTERED BODY, JOINED ASSEMBLY, SEMICONDUCTOR MANUFACTURING APPARATUS MEMBER, AND COMPOSITE MATERIAL SINTERED BODY MANUFACTURING METHOD
    Publication number: 20240327301
    Abstract: A composite material sintered body includes silicon carbide, tungsten silicide, and tungsten carbide, contains 14.4 wt % or more and 48.6 wt % or less of silicon carbide, and has an open porosity of 1% or less.
    Type: Application
    Filed: February 12, 2024
    Publication date: October 3, 2024
    Applicant: NGK INSULATORS, LTD.
    Inventors: Kana IBATA, Asumi NAGAI, Katsuhiro INOUE
  • VEHICLE AIR CONDITIONING SYSTEM AND METHOD FOR REGENERATING AIR CONDITIONING DEVICE
    Publication number: 20240326560
    Abstract: A vehicle air conditioning system includes: an air conditioning duct through which air can flow; an air conditioning device disposed in the air conditioning duct; and a control unit for controlling the air conditioning device. The air conditioning device includes: a honeycomb structure including an outer peripheral wall and partition walls disposed on an inner side of the outer peripheral wall, the partition walls defining a plurality of cells, each of the cells extending from a first end face to a second end face to form a flow path, at least the partition walls being made of a material having a PTC property; a pair of electrodes provided on the honeycomb structure; and a functional material-containing layer formed on a surface of each of the partition walls.
    Type: Application
    Filed: March 13, 2024
    Publication date: October 3, 2024
    Applicant: NGK INSULATORS, LTD.
    Inventor: Hirotaka SAITO
  • METHOD FOR MANUFACTURING HONEYCOMB STRUCTURE
    Publication number: 20240327304
    Abstract: A method for manufacturing a honeycomb structure includes preparing a honeycomb formed body by extruding a green body comprising a ceramic raw material, a pore-forming material, a binder and a dispersion medium through a die that defines opening shapes of the plurality of cells; drying the honeycomb formed body to obtain a honeycomb dried body; and firing the honeycomb dried body to obtain a honeycomb fired body in which a thickness of the partition walls is 50 ?m or more and 210 ?m or less, and a porosity of the partition walls is 45% to 60%; wherein the pore-forming material contains crosslinked starch and an acrylic polymer, and the green body contains 1.0 parts by mass or more of crosslinked starch with the proviso that a P content is less than 0.2 parts by mass, with respect to 100 parts by mass of the ceramic raw material.
    Type: Application
    Filed: March 12, 2024
    Publication date: October 3, 2024
    Applicant: NGK INSULATORS, LTD.
    Inventors: Yukari KOMAI, Koji MOTOKI
  • LITHIUM SECONDARY BATTERY
    Publication number: 20240332522
    Abstract: Provided is a lithium secondary battery, including: a positive electrode layer including a lithium composite oxide sintered body; a negative electrode layer; a separator interposed between the positive electrode layer and the negative electrode layer; an electrolytic solution impregnated into the positive electrode layer, the negative electrode layer, and the separator; and an exterior body, which has a closed space and is configured to store the positive electrode layer, the negative electrode layer, the separator, and the electrolytic solution in the closed space. This lithium secondary battery has a determination coefficient R2 of 0.8 or more, which is obtained when plots of a square root of the number of days elapsed of up to 180 days and a capacity maintenance ratio (%) in a float charging test are linearly regressed.
    Type: Application
    Filed: June 10, 2024
    Publication date: October 3, 2024
    Applicant: NGK INSULATORS, LTD.
    Inventors: Takuaki MITSUHASHI, Daisuke IIDA, Eiji NAKASHIMA
  • CERAMIC BODY AND METHOD FOR PRODUCING SAME
    Publication number: 20240327295
    Abstract: A method for producing a ceramic body includes: a forming step of forming a forming material containing SiC powders having an average particle size D50 of 15 to 50 ?m and SiC powders having an average particle size D50 of 2 to 8 ?m in a mass ratio of 3:7 to 7:3 to obtain a formed body; and a firing and impregnating step of firing the formed body and impregnating it with metal Si.
    Type: Application
    Filed: February 5, 2024
    Publication date: October 3, 2024
    Applicant: NGK INSULATORS, LTD.
    Inventors: Shoji SAKAI, Tatsuya AKAHANI, Shuhei KUNO
  • MEMBRANE MODULE
    Publication number: 20240325969
    Abstract: A membrane module includes a housing, a membrane structure housed in the housing, a sealing portion configured to seal a gap between the housing and the membrane structure, and a cooling portion configured to cool a portion of the housing in contact with the sealing portion.
    Type: Application
    Filed: June 10, 2024
    Publication date: October 3, 2024
    Applicant: NGK INSULATORS, LTD.
    Inventors: Kosuke NAKAGAWA, Kazuki IIDA, Hirofumi KAN, Atsushi TORII, Makoto SHIOMI, Yukinari SHIBAGAKI, Katsuya SHIMIZU
  • REACTOR
    Publication number: 20240326008
    Abstract: A monolith-type reactor includes a porous support body, a plurality of first cells through which a raw material gas flows, a plurality of second cells through which the sweep gas flows, separation membranes, and a catalyst. The first cells pass through the porous support body in a first direction. The second cells extend in the porous support body in the first direction. The separate membranes are respectively formed on inner peripheral surfaces of the first cells and permeable to a product of the conversion reaction. The catalyst is arranged inside the separation membranes, and promotes the conversion reaction. In a cross section taken along a second direction perpendicular to the first direction, the average cross-sectional area of the first cells is larger than the average cross-sectional area of the second cells.
    Type: Application
    Filed: June 14, 2024
    Publication date: October 3, 2024
    Applicant: NGK INSULATORS, LTD.
    Inventors: Kazuki IIDA, Kosuke NAKAGAWA, Hirofumi KAN, Atsushi TORII
  • PILLAR-SHAPED HONEYCOMB STRUCTURE AND METHOD FOR MANUFACTURING SAME
    Publication number: 20240327303
    Abstract: A pillar-shaped honeycomb structure, comprising an outer peripheral side wall; first cells having an opening on the first end surface and having a sealing portion on the second end surface; and second cells adjacent to the first cells with partition walls interposed therebetween and having a sealing portion on the first end surface and having an opening on the second end surface; wherein the outer peripheral side wall, the partition walls, and the sealing portions are fired, and comprise cordierite as a main component and one or more sintering aids selected from ceria, zirconia, and titania; wherein in the partition walls, assuming an average porosity of a portion in a range A, and a portion in a range B is P1 (%); and assuming an average porosity of a portion in a range C is P2 (%), ?4?P1?P2?7 is satisfied.
    Type: Application
    Filed: March 7, 2024
    Publication date: October 3, 2024
    Applicant: NGK INSULATORS, LTD.
    Inventor: Yusuke TSUCHIYA
  • HONEYCOMB FILTER
    Publication number: 20240325956
    Abstract: A honeycomb filter includes a pillar-shaped honeycomb structure having a porous partition wall disposed so as to surround a plurality of cells which serve as a fluid through channel extending from a first end face to a second end face; and a plugging portion provided at either an end on the first end face side or the second end face side of the cell; wherein a thickness of the partition wall is 203 to 254 ?m, a porosity of the partition wall measured by the mercury press-in method is 55 to 70%, an average pore diameter of the partition wall measured by the mercury press-in method is 20 to 25 ?m, and the partition wall has an average base material neck diameter of 11 to 18 ?m for a base material neck part in which an actual part of a porous base material constituting the partition wall is locally narrowed.
    Type: Application
    Filed: February 20, 2024
    Publication date: October 3, 2024
    Applicant: NGK INSULATORS, LTD.
    Inventor: Sachiko MASUDA
  • PILLAR-SHAPED HONEYCOMB STRUCTURE FILTER AND METHOD FOR MANUFACTURING SAME
    Publication number: 20240325957
    Abstract: A pillar-shaped honeycomb structure filter, comprising a plurality of first cells extending from an inlet side end surface to an outlet side end surface, opening on the inlet side end surface and having a sealing portion on the outlet side end surface; and a plurality of second cells extending from the inlet side end surface to the outlet side end surface, having a sealing portion on the inlet side end surface and opening on the outlet side end surface, the plurality of first cells and the plurality of second cells alternately arranged adjacent to each other with a porous partition wall interposed therebetween; wherein a porous film composed of a plurality of particles is formed on a surface of each of the first cells, and the interparticle distance for the plurality of particles at which a cumulative ratio is 90% (D90) is 12.0 ?m or less.
    Type: Application
    Filed: March 19, 2024
    Publication date: October 3, 2024
    Applicant: NGK INSULATORS, LTD.
    Inventors: Daiki TAKATA, Yusuke TSUCHIYA, Shungo NAGAI
  • HEATER ELEMENT ASSEMBLY
    Publication number: 20240334555
    Abstract: A heater element assembly includes a heater element, and frame body, the heater element including: a honeycomb structure portion capable of generating heat when energized; a first electrode layer that covers a part or all of a surface of the partition walls forming the first end surface; a second electrode layer that covers a part or all of a surface of the partition walls forming the second end surface; a first terminal connected to an outer surface of the first electrode layer; and a second terminal connected to an outer surface of the second electrode layer; the frame body comprising a first frame portion made of resin and a second frame portion made of resin for clamping the heater element from a side of the first end surface and a side of the second end surface.
    Type: Application
    Filed: March 11, 2024
    Publication date: October 3, 2024
    Applicant: NGK INSULATORS, LTD.
    Inventors: Yukio MIYAIRI, Yoshiki KONNO
  • Sensor element and gas sensor with enhanced waterproofing
    Patent number: 12105047
    Abstract: A sensor element includes an element body having a measurement-object gas flow section formed therein, and a porous protective layer arranged to cover first to fifth surfaces of the element body. When an external wall that is the thinnest of parts of an external wall which constitute the element body and extend from the measurement-object gas flow section to the first to fifth surfaces is defined as a thinnest external wall and a surface corresponding to the thinnest external wall is defined as a closest surface, a part of the protective layer which covers the closest surface overlaps the entirety of the thinnest external wall when viewed in a direction perpendicular to the closest surface, and has one or more internal spaces formed therein which overlaps 80% or more of the thinnest external wall when viewed in the direction perpendicular to the closest surface.
    Type: Grant
    Filed: August 25, 2021
    Date of Patent: October 1, 2024
    Assignee: NGK INSULATORS, LTD.
    Inventors: Tomoki Nagae, Yoshimasa Kondo, Yusuke Ogiso, Katsunao Uenishi, Atsushi Watanabe, Ayato Koizumi
  • Electrostatic chuck
    Patent number: 12106994
    Abstract: An electrostatic chuck includes: a disk-shaped ceramic plate having a wafer placement surface on a surface thereof; an electrostatic electrode embedded in the ceramic plate; and gas grooves that are divided in a plurality of zones when the ceramic plate is seen from above and each of which is independently provided in the wafer placement surface so as to extend from one to the other of a pair of gas supply/discharge openings for a corresponding one of the zones. A pattern in which a gas is supplied to each of the gas grooves provided for a corresponding one of the zones is selectable between a first pattern in which the gas flows from one to the other of the pair of gas supply/discharge openings and a second pattern in which the gas flows from the other to the one of the pair of gas supply/discharge openings.
    Type: Grant
    Filed: September 19, 2022
    Date of Patent: October 1, 2024
    Assignee: NGK INSULATORS, LTD.
    Inventor: Tatsuya Kuno
  • Catalyst support and induction heating catalyst system
    Patent number: 12104519
    Abstract: A catalyst support for induction heating includes: a honeycomb structure including a pillar shaped honeycomb structure portion having: an outer peripheral wall; and a partition wall disposed on an inner side of the outer peripheral wall, the partition wall defining a plurality of cells, each of the cells extending from an end face on an inlet side to an end face on an outlet side in a gas flow direction to form a flow path; a catalyst supported onto an interior of the partition wall; and at least one magnetic body provided within the honeycomb structure, wherein the catalyst support has a region A where the catalyst is not supported, at least on the end face side of the catalyst support on the inlet side in the gas flow direction, and wherein the magnetic body is arranged at least in the region A in the gas flow direction.
    Type: Grant
    Filed: January 2, 2024
    Date of Patent: October 1, 2024
    Assignee: NGK INSULATORS, LTD.
    Inventors: Yukio Miyairi, Masaaki Masuda, Shuichi Ichikawa, Takuya Ishihara, Kai Matsumoto, Norihisa Fujie, Yoichi Aoki
  • Wafer placement table
    Patent number: 12108498
    Abstract: A wafer placement table includes a ceramic plate, an electrode embedded in the ceramic plate, a hollow ceramic shaft attached to a surface of the ceramic plate, a power-supplying member running inside the ceramic shaft and connected to a terminal of the electrode, a plate-side attaching site defined on the ceramic plate and to which the power-supplying member is attached, and a power-source-side attaching site defined at a free end of the ceramic shaft and to which the power-supplying member is attached. The power-source-side attaching site is defined in correspondence with the plate-side attaching site and in such a manner as to be shifted from the plate-side attaching site in plan view. The power-supplying member includes a redirecting portion where the power-supplying member extending from the power-source-side attaching site is forcibly redirected toward the plate-side attaching site.
    Type: Grant
    Filed: July 1, 2021
    Date of Patent: October 1, 2024
    Assignee: NGK INSULATORS, LTD.
    Inventors: Yuma Iwata, Seiya Inoue, Reo Watanabe
  • Method for manufacturing honeycomb structure containing silicon carbide
    Patent number: 12103856
    Abstract: A method for manufacturing a honeycomb structure containing silicon carbide, including blending a recycled raw material derived from a material constituting a first honeycomb structure containing silicon carbide in a process after firing as a part of an initial raw material for a second honeycomb structure containing silicon carbide, wherein the initial raw material comprises silicon carbide and metallic silicon; and the recycled raw material is a powder recovered from the material constituting the first honeycomb structure containing silicon carbide in the process after firing, and after the recovering, a particle size is adjusted so that a 10% diameter (D10) is 10 ?m or more and a 50% diameter (D50) is 35 ?m or less when a cumulative particle size distribution on a volume basis is measured by a laser diffraction/scattering method.
    Type: Grant
    Filed: February 23, 2021
    Date of Patent: October 1, 2024
    Assignee: NGK INSULATORS, LTD.
    Inventors: Taku Nishigaki, Suguru Kodama, Keisuke Kimura
  • Ceramic heater with shaft
    Patent number: 12108499
    Abstract: A ceramic heater with a shaft includes: a ceramic plate in which a resistance heating element is embedded; a hollow ceramic shaft having an upper end bonded to a surface on an opposite side of a wafer placement surface of the ceramic plate; and a shaft heater embedded in a side wall near an upper end of the ceramic shaft.
    Type: Grant
    Filed: October 29, 2021
    Date of Patent: October 1, 2024
    Assignee: NGK INSULATORS, LTD.
    Inventors: Kenichiro Aikawa, Hiroshi Takebayashi, Tatsuya Kuno
  • SEPARATION MEMBRANE MODULE
    Publication number: 20240316507
    Abstract: A separation membrane module includes a monolith type reactor, a housing, an annular first sealing portion and an annular second sealing portion. The monolith type reactor extends in a longitudinal direction and is configured to be used for a conversion reaction for converting a source gas into a liquid fuel. The annular first sealing portion seals a gap between the housing and a first end portion of the reactor in the longitudinal direction. The annular second sealing portion seals a gap between the housing and a second end portion of the reactor in the longitudinal direction. The first sealing portion is deformable or movable in the longitudinal direction together with the reactor. The second sealing portion fixes the reactor to the housing.
    Type: Application
    Filed: May 23, 2024
    Publication date: September 26, 2024
    Applicant: NGK INSULATORS, LTD.
    Inventors: Kosuke NAKAGAWA, Kazuki IIDA, Hirofumi KAN, Atsushi TORII
  • REACTOR MODULE
    Publication number: 20240316527
    Abstract: A reactor module includes a pre-reactor and a membrane reactor disposed downstream of the pre-reactor. The membrane reactor includes a separation membrane. In the pre-reactor, an intermediate gas is generated from a source gas containing hydrogen and carbon oxide. The intermediate gas contains a liquid fuel, water vapor, and residual source gas. In the membrane reactor, the liquid fuel and water vapor are generated from the residual source gas. The separation membrane allows the water vapor contained in the intermediate gas and a product generated from the residual source gas to pass therethrough.
    Type: Application
    Filed: May 31, 2024
    Publication date: September 26, 2024
    Applicant: NGK INSULATORS, LTD.
    Inventors: Kosuke NAKAGAWA, Kazuki IIDA, Hirofumi KAN, Atsushi TORII
  • VEHICLE AIR CONDITIONING SYSTEM
    Publication number: 20240317026
    Abstract: A vehicle air conditioning system includes: an air conditioning duct through which air can flow; an evaporator disposed in the air conditioning duct; and a humidity control device disposed on an upstream side of the evaporator in the air conditioning duct. The humidity control device includes: a honeycomb structure having an outer peripheral wall and partition walls disposed on an inner side of the outer peripheral wall, the partition walls defining a plurality of cells, each of the cells extending from a first end face to a second end face to form a flow path, at least the partition walls being made of a material having a PTC property; and a dehumidifying layer formed on a surface of each of the partition walls.
    Type: Application
    Filed: February 13, 2024
    Publication date: September 26, 2024
    Applicant: NGK INSULATORS, LTD.
    Inventor: Hirotaka SAITO