Ibiden Co.

Gifu, Japan

Ibiden Co.

Gifu, Japan

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Patent
Ibiden Co. | Date: 2017-01-19

A honeycomb filter includes a plurality of cells and porous cell walls. Exhaust gas is to flow through the plurality of cells. The plurality of cells include exhaust gas introduction cells and exhaust gas emission cells. The honeycomb filter has a round cross sectional shape. Each of the exhaust gas emission cells is adjacently surrounded fully by the exhaust gas introduction cells. In the cross section, the exhaust gas introduction cells and the exhaust gas emission cells each have a polygonal shape. In the cross section, a side forming a cross sectional shape of each of the first exhaust gas introduction cells faces one of the exhaust gas emission cells, a side forming a cross sectional shape of each of the second exhaust gas introduction cells faces one of the exhaust gas emission cells.


Patent
Ibiden Co. | Date: 2016-10-31

A printed wiring board includes a multilayer body, a first wiring layer formed on first surface of the body and including first pads, a second wiring layer embedded into second surface of the body and including second and third pads, conductor posts formed on the third pads, and via conductors formed in the body and having diameter reducing toward the second surface of the body. Each third pad has metal foil formed thereon such that each post is formed on the foil, the second wiring layer is formed such that the second pads are positioned to connect an electronic component in central portion of the second surface of the body and the third pads are positioned to connect another board in outer edge portion of the second surface of the body, and the second pads are formed such that each second pad has exposed surface recessed from the second surface.


The present invention relates to a multilayer coated member including a substrate containing a metal, an amorphous inorganic material layer formed on the substrate, and a non-oxide ceramic layer formed on the amorphous inorganic material layer.


Provided is a honeycomb fired body in which the pressure loss in the initial state where PM has not accumulated is sufficiently low, the strength is sufficiently high, and the heat capacity is not small. The honeycomb fired body of the present invention is a honeycomb fired body including a plurality of cells in each of which one end is plugged and which serve as channels of exhaust gas, and porous cell partition walls that define the cells, wherein the honeycomb fired body is formed of SiC, the plurality of cells include peripheral cells located at an outermost peripheral region of the honeycomb fired body and inner cells located more inward than the peripheral cells, all the inner cells have the same cross-sectional shape that is a rectangle in a plane perpendicular to the longitudinal direction thereof, each peripheral cell is defined by the cell partition walls and an outer wall forming a periphery of the honeycomb fired body, the cell partition walls in contact with the outer wall each have a thick wall region where the wall thickness gradually increases toward the outer wall, the cross-sectional shape of the peripheral cells in a plane perpendicular to the longitudinal direction thereof is a shape formed by reducing the rectangular cross-sectional shape of the inner cells to obtain a reduced rectangle and chamfering or rounding two corners of the reduced rectangle, the cross-sectional area of each peripheral cell in a plane perpendicular to the longitudinal direction thereof is 60 to 80% of the cross-sectional area of each inner cell in a plane perpendicular to the longitudinal direction thereof, the cell partition walls include inter-peripheral-cell cell partition walls each located between the peripheral cells and inter-inner-cell cell partition walls each located between the inner cells, and the minimum thickness of the inter-peripheral-cell cell partition walls is greater than the thickness of the inter-inner-cell cell partition walls.


Patent
Ibiden Co. | Date: 2017-07-19

The present invention provides an extrusion die capable of supplying a molding material having passed through material supply holes uniformly throughout slits. The extrusion die of the present invention is for use in production of a honeycomb molded body including a plurality of cells arranged in parallel with one another in a longitudinal direction with a cell wall therebetween, with the cell wall having a thickness of 0.21 mm or less, the extrusion die including a first face; a second face formed opposite to the first face; a material supply section having first through holes extending from the first face to the second face; and a molding section having second through holes extending from the second face to the first face to communicate with the first through holes, wherein the second through holes viewed from the second face form slits in a grid shape, and each first through hole viewed from the first face is formed between adjacent intersections of the slits viewed from the first face.


Provided is a honeycomb fired body in which the pressure loss in the initial state where PM has not accumulated is sufficiently low, the strength is sufficiently high, and the heat capacity is not small. The honeycomb fired body of the present invention is a honeycomb fired body including a plurality of cells in each of which one end is plugged and which serve as channels of exhaust gas, and porous cell partition walls that define the cells, wherein the honeycomb fired body is formed of SiC, the plurality of cells include peripheral cells located at an outermost peripheral region of the honeycomb fired body and inner cells located more inward than the peripheral cells, all the inner cells have the same cross-sectional shape that is a rectangle in a plane perpendicular to the longitudinal direction thereof, each peripheral cell is defined by the cell partition walls and an outer wall forming a periphery of the honeycomb fired body, the cell partition walls in contact with the outer wall each have a thick wall region where the wall thickness gradually increases toward the outer wall, the cross-sectional shape of the peripheral cells in a plane perpendicular to the longitudinal direction thereof is a shape formed by reducing the rectangular cross-sectional shape of the inner cells to obtain a reduced rectangle and chamfering or rounding two corners of the reduced rectangle, the cross-sectional area of each peripheral cell in a plane perpendicular to the longitudinal direction thereof is 60 to 80% of the cross-sectional area of each inner cell in a plane perpendicular to the longitudinal direction thereof, the cell partition walls include inter-peripheral-cell cell partition walls each located between the peripheral cells and inter-inner-cell cell partition walls each located between the inner cells, and the minimum thickness of the inter-peripheral-cell cell partition walls is greater than the thickness of the inter-inner-cell cell partition walls.


Patent
Ibiden Co. | Date: 2017-07-19

Provided is a honeycomb fired body and a honeycomb filter including the honeycomb fired body in which the pressure loss in the initial state where PM has not accumulated is sufficiently low, the strength is sufficiently high, and the heat capacity is not small. The honeycomb fired body of the present invention includes a plurality of cells that serve as channels of exhaust gas; porous cell partition walls defining the cells; and an outer wall formed at a periphery thereof, the cells including exhaust gas introduction cells in each of which an end on an exhaust gas inlet side is open and an end on an exhaust gas outlet side is plugged, and exhaust gas emission cells in each of which an end on the exhaust gas outlet side is open and an end at the exhaust gas inlet side is plugged, wherein the cross-sectional shape of the exhaust gas introduction cells in a plane perpendicular to the longitudinal direction thereof is constant from the end on the exhaust gas inlet side to the end on the exhaust gas outlet side except for the plugged portion, the cross-sectional shape of the exhaust gas emission cells in a plane perpendicular to the longitudinal direction thereof is constant from the end on the exhaust gas inlet side to the end on the exhaust gas outlet side except for the plugged portion, the exhaust gas emission cells except for the cells adjacent to the outer wall are each adjacently surrounded fully by the exhaust gas introduction cells across the cell partition walls, the exhaust gas introduction cells and the exhaust gas emission cells are alternately arranged in a region adjacent to the outer wall, the cross-sectional area of each exhaust gas emission cell located in the region adjacent to the outer wall in a plane perpendicular to the longitudinal direction thereof is larger than the cross-sectional area of each exhaust gas introduction cell located in the region adjacent to the outer wall in a plane perpendicular to the longitudinal direction thereof, and the cell partition walls in contact with the outer wall each have a thick wall region where the wall thickness gradually increases toward the outer wall.


Patent
Ibiden Co. | Date: 2017-01-23

A printed wiring board includes a lowermost resin insulating layer, a first conductor layer formed on first surface of the lowermost layer, a conductor post having upper surface facing the first surface of the lowermost layer, a metal post formed such that the metal post is protruding from second surface of the lowermost layer and is positioned at lower surface of the conductor post, an electronic component embedded in the lowermost layer such that the component is positioned on second surface side of the lowermost layer and has an electrode facing the first surface of the lowermost layer, and via conductors formed in the lowermost layer and including first and second via conductors such that the first via conductor is connecting the first conductor layer and the upper surface of the conductor post and the second via conductor is connecting the first conductor layer and the electrode of the component.


A light-emitting element mounting substrate includes a substrate including an insulating resin material, a first conductor layer formed on a first main surface of the substrate, a second conductor layer formed on a second main surface of the substrate on the opposite side to the first main surface, metal blocks positioned such that the metal blocks are penetrating through the first conductor layer, substrate and second conductor layer, and through hole conductors formed to extend adjacent to the metal blocks respectively such that the through hole conductors electrically connect the first conductor layer and the second conductor layer. The first conductor layer has an element mounting portion formed such that a light-emitting element is mounted to a first conductor layer side on the element mounting portion, and the metal blocks are positioned such that the metal blocks have end portions in the element mounting portion of the first conductor layer.


A flexible printed wiring board includes a flexible insulating layer, a conductor layer formed on a surface of the flexible insulating layer, and a metal block including a welding base material and positioned such that the metal block is penetrating through the flexible insulating layer and the conductor layer.

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