Patents Assigned to NGK Insulators
  • Ceramic heater
    Patent number: 11874180
    Abstract: A ceramic heater includes a ceramic plate having a surface that serves as a wafer placement surface, resistance heating elements that are embedded in the ceramic plate, a tubular shaft that supports the ceramic plate from a rear surface of the ceramic plate, and a thermocouple passage that extends from a start point in a within-shaft region of the rear surface of the ceramic plate, the within-shaft region being surrounded by the tubular shaft, to a terminal end position in an outer peripheral portion of the ceramic plate. The thermocouple passage includes a stepped portion formed at an intermediate position between the start point and the terminal end position, a long-distance portion extending from the start position to the terminal end position, and a short-distance portion extending from the start position to the intermediate position.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: January 16, 2024
    Assignee: NGK INSULATORS, LTD.
    Inventor: Ryohei Matsushita
  • Method for producing conductive honeycomb structure and method for producing electrically heating support
    Patent number: 11872721
    Abstract: A method for producing a conductive honeycomb structure includes: a forming step of extruding a forming raw material to obtain a honeycomb formed body; a drying step of drying the honeycomb formed body to obtain a honeycomb dried body; and a firing step of firing the honeycomb dried body to obtain a honeycomb fired body. The forming step includes controlling a volume fraction of a portion that can form pores of the honeycomb formed body so that an absolute value of a difference in the volume fraction of the portion that can form the pores in predetermined regions of the honeycomb formed body relative to a previously set, predetermined porosity of the honeycomb fired body is within 0.5%. The predetermined porosity is a porosity preset for each of the predetermined regions of the honeycomb fired body.
    Type: Grant
    Filed: December 22, 2021
    Date of Patent: January 16, 2024
    Assignee: NGK INSULATORS, LTD.
    Inventors: Moriaki Matoba, Masahiro Tokuda, Hiroki Kitabayashi
  • REACTOR
    Publication number: 20240009641
    Abstract: A reactor includes a separation membrane permeable to a product of a conversion reaction of a raw material gas containing at least hydrogen and carbon oxide to a liquid fuel, a non-permeation side flow path extending in an approximately vertical direction on a non-permeation side of the separation membrane, the raw material gas flowing through the non-permeation side flow path, and a catalyst configured to fill the non-permeation side flow path and promote the conversion reaction. The catalyst includes a first layer and a second layer disposed upward of the first layer, and a mean equivalent circle diameter of catalyst particles included in the first layer is larger than a mean equivalent circle diameter of catalyst particles included in the second layer.
    Type: Application
    Filed: September 26, 2023
    Publication date: January 11, 2024
    Applicant: NGK INSULATORS, LTD.
    Inventors: Kosuke NAKAGAWA, Kazuki IIDA, Hirofumi KAN, Atsushi TORII
  • Assembly of piezoelectric material substrate and supporting substrate, and method for manufacturing same
    Patent number: 11871671
    Abstract: A bonded body includes a supporting substrate, a silicon oxide layer provided on the supporting substrate, and a piezoelectric material substrate provided on the silicon oxide layer and composed of a material selected from the group consisting of lithium niobate, lithium tantalate and lithium niobate-lithium tantalate. The surface resistivity of the piezoelectric material substrate on the side of the silicon oxide layer is 1.7×101 5?/? or higher.
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: January 9, 2024
    Assignee: NGK INSULATORS, LTD.
    Inventors: Yuji Hori, Takahiro Yamadera, Tatsuro Takagaki
  • Zeolite membrane complex, method of producing zeolite membrane complex, and hydrothermal synthesis apparatus
    Patent number: 11865499
    Abstract: A zeolite membrane complex includes a longitudinal support member having at least one through hole extending along its length and a zeolite membrane on an inner peripheral surface of the through hole or over an outer peripheral surface of the support, from one end portion of the support to the other end portion thereof. Among constituent elements of the zeolite membrane except oxygen, an element with the highest percentage is a main element, and when the concentration of the main element is measured at three portions defined by dividing the support into three equal parts in the longitudinal direction, the concentration of the main element gradually decreases from the one end portion toward the other end portion, and the ratio of the concentration of the main element at the other end portion to that at the one end portion is 0.90 or more.
    Type: Grant
    Filed: February 17, 2021
    Date of Patent: January 9, 2024
    Assignee: NGK INSULATORS, LTD.
    Inventors: Makoto Miyahara, Kenichi Noda
  • Honeycomb structure and electrically heating support
    Patent number: 11865529
    Abstract: A ceramic honeycomb structure includes: 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 plurality of cells to form a fluid flow path extending from one end face to other end face. The honeycomb structure contains: 1) particles including one or more selected from silicon carbide, silicon nitride and aluminum nitride; and 2) silicon doped with a dopant. The dopant is a Group 13 element or a Group 15 element. The honeycomb structure has a silicon content (B) of from 20 to 80% by mass, and the honeycomb structure has a porosity of 30% or less.
    Type: Grant
    Filed: January 14, 2022
    Date of Patent: January 9, 2024
    Assignee: NGK INSULATORS, LTD.
    Inventors: Takayuki Inoue, Makoto Hamazaki, Kohei Yamada
  • MEMBER FOR SEMICONDUCTOR MANUFACTURING APPARATUS
    Publication number: 20240006194
    Abstract: A member for semiconductor manufacturing apparatus includes: a ceramic plate having a wafer placement surface; a conductive base plate; a gas common passage provided inside the base plate; gas outlet passages provided to reach the wafer placement surface from the gas common passage; at least one gas inlet passage provided to communicate with the gas common passage from a lower surface of the base plate; and an insulating sleeve disposed in a base plate through-hole. The insulating sleeve has a first communication hole that constitutes part of the gas common passage, and a second communication hole that is provided to reach an upper surface of the insulating sleeve from the first communication hole, and constitute part of the gas outlet passages.
    Type: Application
    Filed: March 9, 2023
    Publication date: January 4, 2024
    Applicant: NGK Insulators, Ltd.
    Inventors: Mitsuru KOJIMA, Hiroshi TAKEBAYASHI, Jyunya WAKI
  • HEATING FURNACE
    Publication number: 20240003627
    Abstract: A heating furnace includes a plurality of heat storage coolers capable of introducing a cooling gas into an inside of the furnace and sucking an in-furnace gas; wherein each of the plurality of heat storage coolers includes a gas nozzle in communication with the inside of the furnace; a gas port in communication with an outside of the furnace and connected to a gas piping system that is capable of switching between supplying gas to the heat storage cooler and exhausting gas from the heat storage cooler; a gas passage communicating the gas nozzle with the gas port and having a space for filling a heat storage element; and a heat storage element filled in the space for filling the heat storage element.
    Type: Application
    Filed: June 8, 2023
    Publication date: January 4, 2024
    Applicant: NGK INSULATORS, LTD.
    Inventors: Daniel Yukichi KITAGUCHI, Tatsuya KINOSHITA, Masami SATO
  • MEMBER FOR SEMICONDUCTOR MANUFACTURING APPARATUS
    Publication number: 20240007023
    Abstract: A member for semiconductor manufacturing apparatus of the present invention includes an AlN ceramic substrate with a surface provided with projections for wafer placement. At least part of an area, provided with no projection, of the AlN ceramic substrate has a surface layer region from the surface to a predetermined depth, and a base material region below the surface layer region. The predetermined depth is 5 ?m or less. The oxygen content rate of the surface layer region is higher than the oxygen content rate of the base material region.
    Type: Application
    Filed: September 15, 2023
    Publication date: January 4, 2024
    Applicant: NGK INSULATORS, LTD.
    Inventor: Yusuke OGISO
  • CIRCUIT BOARD ASSEMBLY
    Publication number: 20240008185
    Abstract: A circuit board assembly includes a wiring board, the lithium secondary battery electrically connected to the wiring board, and a wireless communication device electrically connected to the wiring board. The lithium secondary battery includes a positive electrode, a negative electrode arranged to face the positive electrode, and an electrolyte. In the lithium secondary battery, an electrode area (S) and a battery resistance (R) satisfy a relationship of 0.08?R/S?1.80 (?/cm2), where the electrode area is an area where the positive electrode and the negative electrode face each other.
    Type: Application
    Filed: September 14, 2023
    Publication date: January 4, 2024
    Applicant: NGK INSULATORS, LTD.
    Inventor: Eiji NAKASHIMA
  • MEMBER FOR SEMICONDUCTOR MANUFACTURING APPARATUS
    Publication number: 20240006226
    Abstract: A member for a semiconductor manufacturing apparatus, the member has a wafer placement surface and includes: a plurality of gas outflow passages each having an opening on the wafer placement surface; a common gas passage that is in communication with the plurality of gas outflow passages; and at least one gas inflow passage that is in communication with the common gas passage from a surface of the member for a semiconductor manufacturing apparatus that is on an opposite side from the wafer placement surface, the number of the at least one gas inflow passage being smaller than the number of the gas outflow passages in communication with the common gas passage. Among the plurality of gas outflow passages, a gas outflow passage closer to the gas inflow passage has a larger gas passage resistance than a gas outflow passage farther from the gas inflow passage.
    Type: Application
    Filed: March 9, 2023
    Publication date: January 4, 2024
    Applicant: NGK Insulators, Ltd.
    Inventors: Mitsuru KOJIMA, Hiroshi TAKEBAYASHI, Jyunya WAKI
  • Group-III element nitride semiconductor substrate
    Patent number: 11862689
    Abstract: Group-III element nitride semiconductor substrate including a first surface and a second surface that are easy to visually distinguish from each other. An end portion is easily detected with an optical sensor, a large effective area (area that can be used in device production) can be secured, and warping of the entirety of the substrate is reduced. A Group-III element nitride semiconductor substrate includes a first surface; and a second surface, wherein the first surface is a mirror surface, the second surface has a second-surface central region and a second-surface outer peripheral region, the second-surface central region is a mirror surface, and the second-surface outer peripheral region is a non-mirror surface.
    Type: Grant
    Filed: February 17, 2023
    Date of Patent: January 2, 2024
    Assignee: NGK INSULATORS, LTD.
    Inventors: Katsuhiro Imai, Masahiro Sakai, Hiroki Kobayashi
  • Support, zeolite membrane complex, method of producing zeolite membrane complex, and separation method
    Patent number: 11857929
    Abstract: A porous cylindrical support for use in supporting a zeolite membrane has a generally cylindrical inside surface having a central axis extending in the longitudinal direction and a generally cylindrical outside surface that surrounds the inside surface. A zeolite membrane is formed on the outside surface. A maximum value A and a minimum value B of a support thickness in a circumferential direction satisfy (A?B)/(A+B)?0.3 in at least part of the support in the longitudinal direction, the support thickness being a radial distance between the inside surface and the outside surface. By reducing a variation in support thickness, it is possible to improve uniformity in the thickness of the zeolite membrane formed on the support.
    Type: Grant
    Filed: March 15, 2021
    Date of Patent: January 2, 2024
    Assignee: NGK INSULATORS, LTD.
    Inventor: Kenichi Noda
  • Lithium ion conductive material, all-solid-state secondary battery, and method of manufacturing solid electrolyte
    Patent number: 11862785
    Abstract: A lithium ion conductive material has a composition formula of Lia(OH)bFcBr, where 1.8?a?2.3, b=a?c?1, 0.01?c?0.11, and includes an antiperovskite-type crystal phase. Preferably, the lithium ion conductive material further includes a layered antiperovskite-type crystal phase. More preferably, 0?B/(A+B)?0.2 is satisfied, where A is the peak intensity in the vicinity of 2?=31.2° in the X-ray diffractometry using Cu-K? ray and B is the peak intensity in the vicinity of 2?=30.2°.
    Type: Grant
    Filed: September 16, 2020
    Date of Patent: January 2, 2024
    Assignee: NGK INSULATORS, LTD.
    Inventors: Miyuki Kojima, Keita Miyanishi, Yosuke Sato, Yuji Katsuda
  • Method for producing honeycomb structure
    Patent number: 11858170
    Abstract: A method for producing a honeycomb structure 1 having a slit 12 includes: a first step of preparing a honeycomb structure 1 being free from slit, and forming the slit 12 leaving at least a part of the outer peripheral wall 10 or the partition wall 11; after the first step, a second step of filling the slit 12 with a joining material 13; and after the second step, a third step of removing at least a part of the outer peripheral wall 10 or the partition wall 11 left in the first step to obtain the honeycomb structure 1 having the slit 12 that divides the honeycomb structure 1.
    Type: Grant
    Filed: October 29, 2021
    Date of Patent: January 2, 2024
    Assignee: NGK INSULATORS, LTD.
    Inventor: Yuto Naito
  • Flow path member for heat exchanger, and heat exchanger
    Patent number: 11859916
    Abstract: A flow path member for a heat exchanger includes: an inner cylinder capable of housing a heat recovery member through which a first fluid can flow; an outer cylinder having a feed port capable of feeding a second fluid and a discharge port capable of discharging the second fluid, the outer cylinder being disposed so as to be spaced on a radially outer side of the inner cylinder such that a flow path for the second fluid is formed between the outer cylinder and the inner cylinder; a feed pipe connected to the feed port; and a discharge pipe connected to the discharge port. The feed port and the discharge port are provided so as to be located in a distance of less than half the circumference of the outer cylinder in a circumferential direction.
    Type: Grant
    Filed: September 15, 2021
    Date of Patent: January 2, 2024
    Assignee: NGK INSULATORS, LTD.
    Inventors: Tatsuya Akahani, Tatsuo Kawaguchi, Makoto Yoshihara
  • Gas separation method and gas separator
    Patent number: 11857915
    Abstract: A gas separator includes a separation membrane complex in which a separation membrane with pores having a mean pore diameter less than or equal to 1 nm is formed on a porous support, and a gas supply part that supplies a mixed gas including CO2 and another gas from the side of the separation membrane to the separation membrane complex. Then, CO2 in the mixed gas is caused to permeate through the separation membrane and the support and is separated from the mixed gas in a state in which at least part of a permeation surface of the support, from which a gas having permeated through the separation membrane is exhausted, has a temperature lower by 10° C. or more than the temperature of the mixed gas before being supplied to the separation membrane complex.
    Type: Grant
    Filed: March 17, 2021
    Date of Patent: January 2, 2024
    Assignee: NGK INSULATORS, LTD.
    Inventors: Kenichi Noda, Kenji Yajima, Katsuya Shimizu
  • Air electrode/separator assembly and metal-air secondary battery
    Patent number: 11862815
    Abstract: Provided is an air electrode/separator assembly including: a hydroxide ion conductive dense separator; an interface layer containing a hydroxide ion conductive material and an electron conductive material and covering one side of the hydroxide ion conductive dense separator; and an air electrode layer provided on the interface layer and including an outermost catalyst layer composed of a porous current collector and a layered double hydroxide (LDH) covering a surface thereof. The outermost catalyst layer has a porosity of 60% or more.
    Type: Grant
    Filed: October 29, 2021
    Date of Patent: January 2, 2024
    Assignee: NGK INSULATORS, LTD.
    Inventors: Ozora Kano, Naomi Hashimoto, Naomi Saito
  • SOLID ELECTROLYTE, METHOD OF PRODUCING SOLID ELECTROLYTE, AND BATTERY
    Publication number: 20230420734
    Abstract: A solid electrolyte is composed primarily of a component expressed by a composition formula of Lia+dMbXcAeOf by using values a to f that are greater than 0, where M is an element serving as a trivalent cation, X is a halogen element, and A is a sulfur element or a phosphorus element, wherein 0.8c?(a+3b)?1.2c and 1.6f?(d+n×e)?2.4f are satisfied, where when A is a sulfur element, n is 4 or 6, and when A is a phosphorus element, n is 5.
    Type: Application
    Filed: September 6, 2023
    Publication date: December 28, 2023
    Applicants: NGK INSULATORS, LTD., NAGOYA INSTITUTE OF TECHNOLOGY
    Inventors: Yosuke SATO, En YAGI, Satoshi OZAKI, Toshihiro YOSHIDA, Yuji KATSUDA, Mizuki HIROSE, Reona MIYAZAKI
  • SEPARATION MEMBRANE COMPLEX AND METHOD OF PRODUCING SEPARATION MEMBRANE COMPLEX
    Publication number: 20230415102
    Abstract: A separation membrane complex includes a porous support, an intermediate membrane which is a polycrystalline membrane formed on a surface of the support and has pores that are originated from a framework structure and have an average pore diameter smaller than that of pores in the vicinity of the surface of the support, and a separation membrane which is formed on the intermediate membrane and is an inorganic membrane having a regular pore structure. In the separation membrane, a functional group is introduced into pores of a surface layer thereof which is away from the intermediate membrane.
    Type: Application
    Filed: September 13, 2023
    Publication date: December 28, 2023
    Applicant: NGK INSULATORS, LTD.
    Inventors: Makoto MIYAHARA, Kenichi NODA