Patents Assigned to NGK Insulators, Ltd.
-
Publication number: 20240196485Abstract: An induction heating coil unit 2 according to the present invention is an induction heating coil unit 2being configured to be able to heat a heating object 1 by induction heating, wherein the induction heating coil unit 2 includes: an induction heating coil 20 wherein conductors 200 are wound around a predetermined axis line AL; and end wall portions 21 made of a soft magnetic material, the end wall portions 21 being disposed to cover at least a part of end portions on both sides of the induction heating coil 20 in an axial direction, and wherein each of the conductors 200 has an opposing surface 201 opposing to an outer peripheral surface or an inner peripheral surface of the heating object 1, and wherein the opposing surface 201 includes a parallel portion 201a extending parallel to the axis line AL.Type: ApplicationFiled: January 23, 2024Publication date: June 13, 2024Applicants: NGK INSULATORS, LTD., NATIONAL UNIVERSITY CORPORATION OKAYAMA UNIVERSITYInventors: Kazuhiro UMETANI, Shota KAWAHARA, Daiki MIYAKE, Masataka ISHIHARA, Eiji HIRAKI, Shuichi ICHIKAWA, Yukio MIYAIRI, Masaaki MASUDA, Takuya ISHIHARA
-
Publication number: 20240190779Abstract: A method for manufacturing a metal-impregnated ceramic fired body includes: a step 1 of contacting a ceramic formed body with a metal in a form of granules, a step 2 of heating the metal at or above a melting point thereof in a state where the metal in the form of granules is in contact with the ceramic formed body so that the ceramic formed body is fired while the metal is impregnated into the ceramic formed body, thereby obtaining a metal-impregnated ceramic fired body.Type: ApplicationFiled: November 20, 2023Publication date: June 13, 2024Applicants: NGK INSULATORS, LTD., NGKADREC COMPANYInventors: Sora GOTO, Shuhei KUNO, Hiroomi MATSUBA
-
Publication number: 20240190783Abstract: A method for manufacturing a metal-impregnated ceramic fired body includes: a preparation step 1 for a first metal-impregnated ceramic fired body, including impregnating a ceramic formed body with a metal by heating to a melting point of the metal or higher; and a preparation step 2 for a second metal-impregnated ceramic fired body having a lower metal impregnation amount than the first metal-impregnated ceramic fired body, including removing a part of the metal impregnated in the first metal-impregnated ceramic fired body by reheating the first metal-impregnated ceramic fired body to the melting point of the metal or higher.Type: ApplicationFiled: November 20, 2023Publication date: June 13, 2024Applicants: NGK INSULATORS, LTD., NGKADREC COMPANYInventors: Sora GOTO, Shuhei KUNO, Hiroomi MATSUBA
-
Patent number: 12007352Abstract: A gas sensor includes a sensor element and one or more hollow columnar dense bodies. The sensor element includes an element main body having a side surface, a porous layer and a water-penetration reduction portion that cover at least a front end-side part of the side surface. The water-penetration reduction portion disposed on the side surface so as to divide the porous layer or to be located closer to the rear end than the porous layer, an overlap length W that is the length of a continuous overlap between a range in which the water-penetration reduction portion is present in a longitudinal direction and a range in which inner peripheral surfaces of the one or more dense bodies are present in the longitudinal direction being 0.5 mm or more, and having a dense layer covers the side surface, the water-penetration reduction portion reduces the capillarity of water.Type: GrantFiled: June 13, 2022Date of Patent: June 11, 2024Assignee: NGK INSULATORS, LTD.Inventors: Yuki Nakayama, Shota Kageyama, Yusuke Fujii, Kei Kosaka
-
Patent number: 12009245Abstract: A member for semiconductor manufacturing apparatus, includes: a ceramic plate having a wafer placement surface; a plug receiving hole formed in a surface of the ceramic plate opposite to the wafer placement surface; a gas outlet port extending through a bottom wall of the plug receiving hole; a plug received in the plug receiving hole; and a gas flow path disposed inside the plug to be continuous with the gas outlet port, wherein a stepped portion is disposed on a side surface of the plug or an inner surface of the plug receiving hole, the plug receiving hole and the plug are in contact with each other in an area deeper than the stepped portion, a gap is formed between the plug receiving hole and the plug in an area shallower than the stepped portion, and a plug support member made of an adhesive material is formed in the gap.Type: GrantFiled: December 1, 2021Date of Patent: June 11, 2024Assignee: NGK INSULATORS, LTD.Inventors: Masaki Ishikawa, Yuji Akatsuka, Kenji Yonemoto
-
Patent number: 12005535Abstract: A method for producing a shrink-fitted member by arranging a pillar shaped ceramic body inside a deep-drawn stainless steel pipe and shrink-fitting them. The method includes: a preparing step of preparing the deep-drawn stainless steel pipe produced by deep-drawing and the pillar shaped ceramic body; a heating step of heating the deep-drawn stainless steel pipe to 900° C. or more; and a shrink-fitting step of inserting the pillar shaped ceramic body into the heated deep-drawn stainless steel pipe and shrink-fitting them.Type: GrantFiled: February 13, 2023Date of Patent: June 11, 2024Assignee: NGK INSULATORS, LTD.Inventors: Fumitaka Takeuchi, Shuhei Kuno, Seiya Sawada
-
Publication number: 20240186593Abstract: There is provided a remote monitoring system for remotely monitoring the state of an item and/or battery, including a lithium-ion secondary battery capable of wireless power transfer, a sensor that detects the state of the item and/or lithium-ion secondary battery to acquire status information, a wireless communication module connected to the lithium-ion secondary battery and the sensor, the wireless communication module including a transmission unit that transmits the status information to a remote server, and a reception unit that receives a warning signal transmitted from the remote server when the status information is out of a normal range, and means for issuing an alert appealing to the five senses in response to the reception of the warning signal.Type: ApplicationFiled: February 15, 2024Publication date: June 6, 2024Applicant: NGK INSULATORS, LTD.Inventors: Chiori SUZUKI, Iwao OHWADA, Takaaki KOIZUMI
-
Publication number: 20240181399Abstract: A processing method of a separation membrane complex includes a step of preparing a separation membrane complex including a porous support and a separation membrane formed on the support and a step of bringing a cleaning fluid composed of supercritical or subcritical carbon dioxide having a density of 600 to 1000 kg/m3 into contact with the separation membrane of the separation membrane complex.Type: ApplicationFiled: February 12, 2024Publication date: June 6, 2024Applicant: NGK INSULATORS, LTD.Inventors: Kenichi NODA, Narumi TOMOKAGE
-
Publication number: 20240186170Abstract: A member for a semiconductor manufacturing apparatus includes: a ceramic plate that has a wafer placement surface at an upper surface thereof; a plug disposition hole that extends through the ceramic plate in an up-down direction and that has a truncated conical space whose upper opening is larger than a lower opening thereof; a truncated conical plug that is disposed in the plug disposition hole, that allows gas to flow in the up-down direction, and whose upper surface is larger than a lower surface thereof; an adhesive layer that is provided between the plug disposition hole and the truncated conical plug; an electrically conductive baseplate that is joined to a lower surface of the ceramic plate through a joint layer; and a gas supply path that is provided in the baseplate and the joint layer and that supplies gas to the truncated conical plug.Type: ApplicationFiled: July 5, 2023Publication date: June 6, 2024Applicant: NGK INSULATORS, LTD.Inventors: Natsuki HIRATA, Shinya YOSHIDA, Tatsuya KUNO, Seiya INOUE, Taro USAMI, Kenji YONEMOTO, Aoi SAITO
-
Publication number: 20240186672Abstract: A waveguide device includes: a line substrate having holes periodically formed in a semiconductor substrate; a waveguide configured to propagate an electromagnetic wave while confining the electromagnetic wave therein with the holes; a low-dielectric constant portion having a dielectric constant smaller than a dielectric constant of the line substrate, the low-dielectric constant portion overlapping the waveguide in a thickness direction of the line substrate; and a support substrate arranged below the line substrate, the support substrate being configured to support the line substrate. The waveguide device is configured to guide an electromagnetic wave having a frequency of 30 GHz or more and 20 THz or less.Type: ApplicationFiled: January 10, 2024Publication date: June 6, 2024Applicant: NGK INSULATORS, LTD.Inventors: Kentaro TANI, Jungo KONDO
-
Patent number: 11998972Abstract: A method for producing a shrink-fitted member by arranging a hollow type pillar shaped ceramic body inside a metal pipe and shrink-fitting them, the hollow type pillar shaped ceramic body including: an outer peripheral surface and an inner peripheral surface in a direction substantially parallel to an axial direction; and a first end face and a second end face in a direction substantially perpendicular to the axial direction. The method includes arranging the hollow type pillar shaped ceramic body inside the metal pipe while gripping the hollow type pillar shaped ceramic body using a chuck mechanism.Type: GrantFiled: January 9, 2023Date of Patent: June 4, 2024Assignee: NGK INSULATORS, LTD.Inventors: Fumitaka Takeuchi, Shuhei Kuno, Seiya Sawada
-
Patent number: 12002978Abstract: Provided is an alkaline secondary battery including: a stacked-cell battery in which multiple single cell elements having a configuration of an alkaline secondary battery are stacked; and a box-shaped case made of resin in which the stacked-cell battery is housed vertically. The box-shaped case has a bottom, a pair of long-side walls parallel to the stacked-cell battery, a pair of short-side walls perpendicular to the stacked-cell battery, and a lid part. The lid part has a vulnerable portion having a smaller thickness than other portions of the lid part, the thickness of the vulnerable portion is 0.1 to 1.0 mm, and a proportion of an area of the vulnerable portion with respect to a total area of the lid part in a plan view is 10 to 40%.Type: GrantFiled: December 28, 2021Date of Patent: June 4, 2024Assignee: NGK INSULATORS, LTD.Inventors: Yuichi Gonda, Keiichi Mori, Genta Terazawa
-
Publication number: 20240178539Abstract: A waveguide device includes: an inorganic material substrate; a conductor layer including a signal electrode and first earth electrodes; a support substrate positioned on an opposite side to the conductor layer with respect to the inorganic material substrate; a second earth electrode positioned between the inorganic material substrate and the support substrate; and a third earth electrode positioned on an opposite side to the second earth electrode with respect to the support substrate. The first earth electrodes, the second earth electrode, and the third earth electrode are electrically connected to each other. A thickness “t” of the inorganic material substrate satisfies the following formula (1).Type: ApplicationFiled: February 6, 2024Publication date: May 30, 2024Applicant: NGK INSULATORS, LTD.Inventors: Kentaro TANI, Naotake OKADA, Jungo KONDO
-
Patent number: 11996313Abstract: A member for semiconductor manufacturing apparatus has a structure in which a hollow ceramic shaft is provided on a back surface of a ceramic plate having a front surface serving as a wafer placement surface. The member for semiconductor manufacturing apparatus includes an RF electrode embedded in the ceramic plate, an RF connector disposed outside of the hollow interior of the ceramic shaft, and an RF link member provided between the RF connector and the RF electrode. The RF link member has a branching portion consisting of a plurality of RF rods, and the branching portion extends to the outside of the ceramic shaft.Type: GrantFiled: December 15, 2021Date of Patent: May 28, 2024Assignee: NGK INSULATORS, LTD.Inventor: Ryuji Tamura
-
Patent number: 11996544Abstract: Provided is a coin-shaped lithium secondary battery including a positive electrode plate which is a lithium complex oxide sintered plate; a negative electrode plate which is a titanium-containing sintered plate; a separator interposed between the positive electrode plate and the negative electrode plate; an electrolytic solution with which the positive electrode plate, the negative electrode, and the separator are impregnated; and an exterior body having a closed space, the closed space accommodating the positive electrode plate, the negative electrode plate, the separator, and the electrolytic solution, the lithium secondary battery having a thickness of 0.7 to 1.6 mm and a diameter of 10 to 20 mm.Type: GrantFiled: October 14, 2020Date of Patent: May 28, 2024Assignee: NGK INSULATORS, LTD.Inventors: Yukinobu Yura, Kazuki Maeda, Shunsuke Mizukami
-
Patent number: 11994053Abstract: An electrically heating converter includes: a pillar shaped honeycomb structure made of conductive ceramics, including: 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 penetrating from one end face to other end face to form a flow path; metal electrodes; conductive connecting portions arranged on a surface of the pillar shaped honeycomb structure; and a pressing member configured to press the metal electrodes against the conductive connecting portions, so that the metal electrodes are electrically connected to the pillar shaped honeycomb structure. Each of the conductive connecting portions has an electrical resistivity lower than that of the pillar shaped honeycomb structure.Type: GrantFiled: August 24, 2022Date of Patent: May 28, 2024Assignee: NGK INSULATORS, LTD.Inventors: Hironori Takahashi, Naoki Okamoto
-
Publication number: 20240167411Abstract: An electrically heating catalytic converter according to the present invention includes: a honeycomb structure 1 having an outer peripheral wall and partition walls defining a plurality of cells; a pair of metal electrodes 2 connected to the honeycomb structure 1; and a housing 3 provided with an inlet 30 and an outlet 31, the housing 3 storing the honeycomb structure 1 therein, wherein the honeycomb structure 1 has a plurality of regions comprising a central region including an axial center of the honeycomb structure and an outer peripheral region adjacent to the outer peripheral wall, wherein the opening percentage of the central region is less than or equal to 0.9 times that of the outer peripheral region, and wherein a diameter of the central region is more than or equal to 65% and less than or equal to 135% of that of the inlet of the housing.Type: ApplicationFiled: November 6, 2023Publication date: May 23, 2024Applicants: NGK INSULATORS, LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takashi TAKADA, Hitomi FURUKAWA, Takahiro SADAMITSU, Toshinori OKI, Shingo KORENAGA, Yoshio YAMASHITA
-
Publication number: 20240172332Abstract: An electrically heating support includes: a honeycomb structure 1 including a honeycomb structure portion 10 having an outer peripheral wall 100; and electrode layers 11 provided on a surface of the outer peripheral wall 100; metal electrodes 2; and a plurality of thermally sprayed fixed layers 3, wherein each of the pair of metal electrodes 2 includes: a base portion 20; and a comb tooth-shaped connection portion 21 having a plurality of teeth portions 23, wherein each of the tooth portions 23 includes at least one first portion 23a and at least one second portion 23b narrower than the first portion 23a, and wherein at least one of the thermally sprayed fixed layers 3 is provided on an outer peripheral surface of the honeycomb structure 1 and the at least one second portion 23b so that the connection portion 21 is fixed to the honeycomb structure 1.Type: ApplicationFiled: November 6, 2023Publication date: May 23, 2024Applicants: NGK INSULATORS, LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yuta NAGATANI, Shinobu SHIMASAKI
-
Patent number: 11986778Abstract: A gas separation apparatus includes a gas supply part and a zeolite membrane. The gas supply part supplies a mixed gas at a pressure greater than or equal to 10 atm and less than or equal to 200 atm. The mixed gas contains at least CH4, CO2, and N2. A water content of the mixed gas is made less than or equal to 3000 ppm. The zeolite membrane allows CO2 and N2 in the mixed gas to permeate therethrough, to thereby separate CO2 and N2 from CH4. The zeolite membrane is made of zeolite. The zeolite contains Al. A ratio of alkali metal to whole framework elements in the zeolite is less than or equal to 6.0 mol %. An amount of substance of the alkali metal in the zeolite is less than an amount of substance of Al.Type: GrantFiled: July 22, 2020Date of Patent: May 21, 2024Assignee: NGK INSULATORS, LTD.Inventor: Kenichi Noda
-
Patent number: 11986812Abstract: A honeycomb structure according to at least one embodiment of the present invention includes: partition walls defining cells each extending from a first end surface of the honeycomb structure to a second end surface thereof to form a fluid flow path; and an outer peripheral wall. The partition walls and the outer peripheral wall are each formed of ceramics containing silicon carbide and silicon. A surface of the silicon has formed thereon an oxide film having a thickness of from 0.1 ?m to 5.0 ?m.Type: GrantFiled: March 11, 2022Date of Patent: May 21, 2024Assignee: NGK INSULATORS, LTD.Inventors: Makoto Hamazaki, Takayuki Inoue, Kohei Yamada
