Abstract: A ceramic heater includes a ceramic plate. An outer-peripheral-side resistance heating element is disposed in an outer peripheral zone of the ceramic plate. A wire line extends from each of a pair of terminals disposed in a central portion of the ceramic plate toward the outer peripheral zone, and a portion of the wire line close to the outer peripheral zone is a linear portion. A connection terminal is a conductive member connecting between the wire line and the outer-peripheral-side resistance heating element, and includes a first hole into which the linear portion of the wire line is inserted and a second hole into which an end portion of the outer-peripheral-side resistance heating element is inserted.
Abstract: A pillar shaped honeycomb structure includes: a porous partition wall that defines a plurality of cells, the cells forming flow paths for a fluid, the cells extending from an inflow end face to an outflow end face; and an outer peripheral wall located at the outermost circumference. At least a part of surfaces of the partition walls has a surface layer, and the surface layer includes magnetic particles and has permeability.
Abstract: An extrusion molding machine 1, including: an extruding portion 10 having a screw 11 and a barrel 12 capable of housing the screw; a molding portion 20 having one end and other end, the one end having a die 21, and the other end being connected to an extruding port 13 of the extruding portion 10; and a rectifier 30 arranged between the extruding portion 10 and the molding portion 20. A heat insulating member 40 is further arranged between the molding portion 20 and the rectifier 30.
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.
Abstract: A honeycomb structure includes a pillar-shaped honeycomb structure body having a porous partition wall disposed to surround a plurality of cells, wherein a major component of the partition wall is cordierite, a porosity of the partition wall is 45 to 55%, an average pore diameter of the partition wall is 8 to 19 ?m, a cumulative pore volume of the partition wall is such that a pore volume ratio of the pores having a pore diameter larger than a thickness of the partition wall relative to an overall pore volume of the partition wall is 3.0% or less, and a pore volume ratio of the pores having a pore diameter of 10 ?m or less relative to the overall pore volume of the partition wall is 30% or more, and a pore diameter distribution of the partition wall is a unimodal distribution, or a multimodal distribution.
Abstract: A ceramic porous body comprising: skeleton portions; and pore portions formed between the skeleton portions, the pore portions being capable of allowing a fluid to flow therethrough. In the ceramic porous body, the pore portions satisfy the following equations (1) and (2) in a cross section parallel to a flow direction of the fluid; L1/L2?0.92??(1), and L1+L2?27 ?m??(2) in which L1 is an average length of the pore portions in the flow direction of the fluid; and L2 is an average length of the pore portions in a direction orthogonal to the flow direction of the fluid.
Abstract: A ceramic membrane filter includes a porous substrate including cells through which a fluid flows, an intermediate membrane formed on the porous substrate, and a separation membrane formed on the intermediate membrane. In this ceramic membrane filter, the percentage of the number of cells having cracks with a size of 4 ?m or less relative to the total number of cells is 9% or less.
Abstract: A method for transferring a plurality of columnar honeycomb structures according to the present invention includes: subjecting first side surfaces of the plurality of columnar honeycomb structures to vacuum suction; and correctively transferring the plurality of the columnar honeycomb structures, optionally while supporting second side surfaces opposing to the first side surfaces of the plurality of columnar honeycomb structures by a supporting member.
October 31, 2018
Date of Patent:
April 13, 2021
NGK Insulators, Ltd.
Chikashi Ihara, Masato Shimada, Shinya Yoshida
Abstract: A honeycomb filter includes a pillar-shaped honeycomb structure having porous partition walls provided, surrounding a plurality of cells which serve as fluid through channels extending from an inflow end face to an outflow end face, and porous plugging portions provided either at the ends on the inflow end face side or the outflow end face side of the cells, wherein the plugging portions are composed of a porous material, the honeycomb structure has a central region and a circumferential region, and a ratio of an area of the circumferential region with respect to that of the central region ranges from 0.1 to 0.5, porosity of a central plugging portion in the central region, is higher than that of a circumferential plugging portion in the circumferential region, and the porosity of the central plugging portion ranges from 76% to 85%, and that of the circumferential plugging portion from 60% to 75%.
Abstract: A setter for firing in a plate which is used for firing a honeycomb formed body and interposed between the honeycomb formed body and a shelf plate, wherein the setter for firing has a setter lower surface section facing the shelf plate, the setter lower surface section including: a central region part formed by a region including a lower surface center of the setter lower surface section; and a peripheral region part formed by a peripheral region of the central region part, and the peripheral region part has at least four or more setter groove parts each having a recessed cross sectional shape and extending radially from the lower surface center respectively in a direction from a boundary with the central region part toward a setter outer circumferential section.
Abstract: A particular-gas concentration-measuring apparatus measures a particular gas concentration being the concentration of a particular gas in a measurement-object gas. The particular-gas concentration-measuring apparatus comprises a particular-gas concentration derivation unit. The particular-gas concentration derivation unit causes an electromotive-force acquisition unit to acquire an electromotive force and derives a correction value compensating for the difference between a correction-value derivation electromotive force that is the electromotive force and the reference electromotive force at a correction-value derivation time. The correction-value derivation time is a time during which a sensing electrode is exposed to a correction-value derivation gas, the correction-value derivation gas being the measurement-object gas where neither ammonia nor a combustible gas is assumed to be included.
Abstract: A sensor element includes: a main pump cell constituted by an inner pump electrode facing a first inner space into which a measurement gas is introduced, an external pump electrode provided on a surface of the sensor element, and a solid electrolyte located therebetween; and a measurement pump cell constituted by a measurement electrode facing a second inner space communicated with the first inner space and functioning as a reduction catalyst for NOx; and a solid electrolyte located therebetween. The inner pump electrode is a cermet made of Pt and ZrO2, the inner pump electrode has a porosity ranging from 1-5% and a thickness ranging from 5-20 ?m, a resistance of the main pump cell is equal to or smaller than 150?, and a diffusion resistance from the gas inlet to the inner pump electrode is ranging from 200-1000 cm?1.
Abstract: A composite oxide catalyst includes Ce that is a first metal, La that is a second metal, and a third metal as contained metals. The third metal is a transition metal, or a rare-earth metal other than Ce and La. A Ce content in the contained metals is higher than or equal to 5 mol % and lower than or equal to 95 mol %. An La content in the contained metals is higher than or equal to 2 mol % and lower than or equal to 93 mol %. A content of the third metal in the contained metals is higher than or equal to 2 mol % and lower than or equal to 93 mol %.
Abstract: A bonded body includes a supporting substrate, a bonding layer provided on a surface of a supporting substrate and composed of silicon oxide, and a piezoelectric material substrate of a material selected from the group consisting of lithium niobate, lithium tantalate and lithium niobate-lithium tantalate. A convexity is provided on the surface of the supporting substrate, and the bonding layer includes a structural defect part extending above the convexity.
Abstract: A solid electrolyte is constituted by lithium phosphorus oxynitride (LiPON). A multiplication value obtained by multiplying a ratio of a peak intensity of nitrogen atoms having a single bond with one P atom and having a double bond with another P atom to a peak intensity of an N2 state in a Raman spectroscopy spectrum by a ratio of a content amount of N atoms to a content amount of P atoms is greater than or equal to 0.40.
Abstract: An electric heating type support includes: a pillar shaped honeycomb structure being configured to a ceramic, 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 extending from one end face to other end face to form a flow path; an electrode layer disposed on a surface of the outer peripheral wall of the pillar shaped honeycomb structure; two or more underlayers having conductivity, the underlayers being provided on the electrode layer so as to be spaced apart from each other; and a metal electrode provided on the underlayers. A surface of each of the underlayers has a concave portion forming a space between each of the underlayers and the metal electrode.
Abstract: A honeycomb structure, including: a honeycomb structure body having a porous partition walls which are disposed to define a plurality of cells and a circumferential wall, wherein the partition walls are provided with protrusions which protrude to extend into the cells and are continuously disposed in an extending direction of the cells, the cells have a polygonal shape in a cross section orthogonal to the extending direction of the cells, the plurality of cells include a plurality of specific cells having at least one place where two sides each of which is provided with a different number of protrusions intersect each other, and in the cross section orthogonal to the extending direction of the cells, disposition directions of the shapes of the cells including the protrusions in the specific cells are different in one specific cell and other specific cells other than the one specific cell.
Abstract: A sensor element includes: a main pump cell constituted by an inner pump electrode facing the first inner space into which a measurement gas is introduced, an external pump electrode provided on an element surface, and a solid electrolyte located therebetween; a measurement electrode facing a second inner space communicating with the first inner space and functioning as a reduction catalyst for NOx; and a measurement pump cell constituted by the measurement electrode, the external pump electrode, and a solid electrolyte located therebetween. A diffusion resistance from the gas inlet to the inner pump electrode ranges from 200-1000 cm?1, a resistance of the main pump cell is equal to or smaller than 150?, a distance between the electrodes ranges from 0.1-0.6 mm, and the inner pump electrode which is a cermet made of an Au—Pt alloy and ZrO2 has an area ranging from 5-20 mm2.
Abstract: A copper alloy disclosed in the present description has a basic alloy composition represented by Cu100?(x+y)SnxAly (where 8?x?12 and 8?y?9 are satisfied), in which a main phase is a ?CuSn phase with Al dissolved therein, and the ?CuSn phase undergoes martensitic transformation when heat-treated or worked. A method for producing a copper alloy disclosed in the present description is a casting step of melting and casting a raw material containing Cu, Sn, and Al and having a basic alloy composition represented by Cu100?(x+y)SnxAly (where 8?x?12 and 8?y?9 are satisfied) so as to obtain a cast material, and a homogenization step of homogenizing the cast material in a temperature range of a ?CuSn phase so as to obtain a homogenized material, the method includes at least the casting step.
February 22, 2018
Date of Patent:
March 23, 2021
NGK Insulators, Ltd., National University Corporation Yokohama National University
Abstract: A heat exchanger includes: a hollow pillar shaped honeycomb structure; a first cylindrical member fitted to a surface of an outer peripheral wall of the pillar shaped honeycomb structure; a second cylindrical member fitted to a surface of an inner peripheral wall of the pillar shaped honeycomb structure; a cylindrical guide member having a portion, the portion being disposed on a radially inner side of the second cylindrical member with a distance so as to form the flow path for the first fluid; an upstream cylindrical member connecting an upstream end of the first cylindrical member to an upstream side of the guide member; and a downstream cylindrical member connected to a downstream end of the first cylindrical member. The guide member includes an inclined portion that inclines to its downstream side.