Ngk Insulators, Inc.

Toyota Jidosha Kabushiki Kaisha

Toyota Boshoku Kabushiki Kaisha

Takashi Noro

Yoshimasa Omiya

Kazumi Mase

Atsushi Kaneda

Takahisa Kaneko

Yoshimasa Kobayashi

Hiroaki Takeuchi

Yunie Izumi

Tsuyoshi Watanabe

Tadato Ito

Chikashi Ihara

Takayuki Inoue

Masahiro Tokuda

Akifumi Nishio

Iwao Matsushima

Shuhei Kuno

Kisuke Yamamoto

Makoto Hamazaki

Yuji Itoh

Kazumi Nagareda

Keiji Morimoto

Toshiharu Kondo

Shungo Watanabe

A honeycomb structure made of ceramics, wherein the honeycomb structure includes: a borosilicate; and silicon particles doped with at least one dopant, the dopant is a Group 13 element or a Group 15 element, the silicon particles have a dopant amount (A) of 1×10to 5×10/cm, and the honeycomb structure has a silicon particle content (B) of 30 to 80% by mass.

Honeycomb structure and electrically heating support

A method for estimating a heat generation distribution in a honeycomb structure includes: a first step of allowing a predetermined minute current to flow between electrode layers Aand Bto energize a honeycomb structure, and measuring surface potentials at multiple points; a second step of allowing a predetermined minute current to flow between electrode layers Aand Bto energize the honeycomb structure, and measuring surface potentials at multiple points; a third step of quantifying, based on the measured surface potentials at the multiple points, at least one of resistances at the multiple points in the honeycomb structure, resistance ratios for energization paths, voltage sharing ratios, and surface potentials of the electrode layers A, A, Band B; and a step of estimating a heat generation distribution in the honeycomb structure based on the values quantified in the third step.

Method for estimating heat generation distribution in honeycomb structure, method for producing honeycomb structure and method for producing electrically heating support

A method for producing a honeycomb structure includes: a forming step of extruding a forming raw material containing a ceramic raw material mainly based on silicon carbide and metal silicon to obtain a honeycomb formed body, the honeycomb formed body comprising: an outer peripheral wall; and partition walls; 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 drying step includes: a first drying step of subjecting the honeycomb formed body to dielectric drying at a frequency of from 2 to 200 MHz so that a moisture scattering rate of the honeycomb formed body after dielectric drying is from 30 to 85%; and a second drying step of subjecting the honeycomb formed body having the moisture scattering rate of from 30 to 85% to hot air drying.

Method for producing honeycomb structure and method for producing electrically heating support

A conductive honeycomb structure, comprising: a columnar ceramic honeycomb structure portion comprising an outer peripheral side wall and partition walls each disposed inside the outer peripheral side wall and defining a plurality of cells penetrating from one bottom surface to another bottom surface to form flow paths; a pair of electrode layers disposed on an outer surface of the outer peripheral side wall across a central axis of the honeycomb structure portion; and a pair of metal terminals joined to the respective electrode layers via one or more welded portions, wherein each of the one or more welded portions comprises a welded area of from 2 to 50 mm.

Conductive honeycomb structure

A conductive honeycomb structure includes: a pillar honeycomb structure portion including an outer peripheral side wall and partition walls, each of the partition walls extending through the pillar honeycomb structure from a first end face to a second end face to define a plurality of cells forming a through channel of a first fluid; a pair of electrode portions disposed in contact with an outer surface of the outer peripheral side wall across a central axis of the honeycomb structure portion; and a pair of terminal connecting portions formed on the outer peripheral side wall, each of the terminal connecting portions being at least partially covered with each of the electrode portions. Each of the electrode portions includes band-shape first, second and third electrode layers each having a predetermined electrical resistance.

Honeycomb structure

A joined bodyincludes a ceramic body, a metal member, and a joint portionthat joins the ceramic bodyand the metal membertogether. The joint portionincludes a first joint layerjoined to the ceramic bodyand a second joint layerjoined to the metal member. The first joint layeris disposed on the ceramic bodyside and contains an alloy that contains Fe and Cr as main components, and a compound having a thermal expansion coefficient of 4.0&#xd7;10(/&#xb0; C.) or lower is dispersed in the first joint layer. The second joint layeris disposed on the metal memberside, contains an alloy that contains Fe and Cr as main components, and has a larger thermal expansion coefficient than the first joint layer

Joined body and method for producing joined body

A honeycomb structure includes a honeycomb structure body having a porous partition wall which cells and having a circumferential wall at an outer circumference thereof, and also includes a pair of electrodes on a side surface of the honeycomb structure body. An open frontal area of a center part is 0.70 to 0.95 times of that of an outer circumferential part, where the center part is defined as an area from a center of the honeycomb structure body to a position of 10% of a length from the center to the outer circumference in a direction toward the outer circumference in a cross-section orthogonal to the cells' extending direction, and the outer circumferential part is defined as an area from the outer circumference to a position of 10% of a length from the outer circumference to the center in a direction toward the center in the cross-section.

There are disclosed an information-display-equipped electric-heating-type heater, and a method of using the above information. An information-display-equipped electric-heating-type heater includes a tubular honeycomb structure made of a conductive material and having porous partition walls to define and form a plurality of cells which become through channels for a fluid and extend from one end face to the other end face, and a circumferential wall positioned in an outermost circumference; and a pair of electrodes disposed on the circumferential wall of the honeycomb structure, and information concerning a heater performance of the electric-heating-type heater is displayed in the honeycomb structure.

Information-display-equipped electric-heating-type heater and method of using information therefor

There is disclosed a honeycomb structure including a tubular honeycomb structure part having porous partition walls with which a plurality of cells are formed and an outer peripheral wall, and a pair of electrode parts arranged on a side surface of the honeycomb structure part, an electrical resistivity of the honeycomb structure part is from 10 to 200 &#x3a9;cm, each of the pair of electrode parts is formed into a band-like shape extending in a direction in which the cells extend, in a cross section perpendicular to the extending direction of the cells, the one electrode part is disposed opposite to the other electrode part via the center of the honeycomb structure part, and the electrode part has portions having a thickness of 0 to 70% of the maximum thickness of the electrode part.

A honeycomb structure includes a tubular honeycomb structure body including porous partition walls defining a plurality of cells, and an outer peripheral wall and a pair of electrode parts disposed on a side face of the honeycomb structure body, wherein the honeycomb structure body has electric resistivity of 1 to 200 &#x3a9;cm, each electrode part has a belt-like shape extending in an extending direction of the cells, each electrode part is placed on an opposite side each other across a center of the honeycomb structure body, the honeycomb structure body includes an inflow-side area that is an area on the inflow-side and covering the inflow end face, and an outflow-side area that is an area other than the inflow-side area, and the inflow-side area is made of a material having electric resistivity lower than electric resistivity of a material of the outflow-side area.

Honeycomb structure and method for manufacturing the same

A honeycomb structure includes a tubular honeycomb structure body having porous partition walls to define and form a plurality of cells and an outer peripheral wall, and a pair of electrodes disposed on a side surface of the honeycomb structure body. An electrical resistivity of the honeycomb structure body is from 1 to 200 &#x3a9;cm, each of the pair of electrodes is formed into a band-like shape extending in an extending direction of the cells of the honeycomb structure body, one electrode in the pair of electrodes is disposed on a side opposite to the other electrode in the pair of electrodes via a center of the honeycomb structure body, the honeycomb structure body has a central region and an outer peripheral region, and an electrical resistivity of the central region is lower than an electrical resistivity of the outer peripheral region.

Honeycomb structure and manufacturing method of the same

A honeycomb structure includes a tubular honeycomb structure body having porous partition walls to define and form a plurality of cells and an outer peripheral wall, and a pair of electrodes disposed on a side surface of the honeycomb structure body. An electrical resistivity of the honeycomb structure body is from 1 to 200 &#x3a9;cm, each of the pair of electrodes is formed into a band-like shape extending in an extending direction of the cells of the honeycomb structure body, one electrode in the pair of electrodes is disposed on a side opposite to the other electrode in the pair of electrodes via a center of the honeycomb structure body, the honeycomb structure body is constituted of an outer peripheral region and a central region, and an electrical resistivity of a material constituting the outer peripheral region is lower than an electrical resistivity of a material constituting the central region.

A vehicle seat including: a seat back; and a headrest that is provided to an upper part of the seat back, the headrest including, a frame that is supported to be vibratable with respect to the seat back, a headrest body that is mounted on the frame, a first cover and a second cover that nip and hold the frame in cooperation with each other in the headrest body, and a mass body that is held between the first cover and the second cover.

Vehicle seat

A torque converter includes a pump shell constituting an internal space for retaining ATF and capable of rotating about the rotation axis; a blade engaging with the pump shell; and an extension sleeve pressing the blade against the pump shell. The pump shell has a groove into which a tip portion of the blade is fit formed at its inner peripheral surface. In the state where the tip portion is fit into the groove, the extension sleeve presses the blade to fix the blade to the pump shell. The groove forms an acute angle &#x3b8; with respect to a meridian of the shell passing through the groove. The groove extends in one direction, has one end opened and the other end closed, and has a width larger on the side of the one end than on the side of the other end. The groove has a portion smallest in width equal to the width of the tip portion.

Fluid drive device

An apparatus for coating the outer peripheral surfaceof a pillar structurecomprising a smoothing meanshaving a smoothing plateand an elastic body; the elastic bodybeing disposed to be contacted with the outer peripheral surfaceof the pillar structureto be coated. The coating surface of a coating material supplied to the outer peripheral surfaceis smoothed between the outer peripheral surfaceand the elastic body. A method for coating the outer peripheral surface of a pillar structure is also provided. According to the method by using the apparatus, the occurrence of partial uncoating or peeling of the coating and occurrence of cracks in the coating portion during drying after coating can be inhibited since the coating material can be applied thinly and uniformly on the outer peripheral surface, thereby the coating surface is smoothed.

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Nagoya, Japan

Takashi Noro