Tdk Corporation

Mitsui Chemicals Asahi Life Materials Co., Ltd.

Asahi Kasei Fibers Corporation

Oki Electric Industry Co., Ltd.

Takashi Komatsu

Katsumi Kobayashi

Akitoshi Yoshii

Sunao Masuda

Kazuyuki Hasebe

Kayou Kusano

Eiji Shiota

Kouji Tanabe

Norihisa Ando

Daisuke Sato

Jinichiro Kato

Yusuke Sasaki

Rumina Obi

Masayuki Kaneda

Yasuo Nakanishi

Junichi Kusakabe

Chie Okamura

Masaaki Mori

Ryu Taniguchi

Shinya Yamamuro

Joichi Endo

Toshio Tohkura

Yuya Fujimoto

Provided is a composite sound-absorbing material that can exhibit sound absorption properties in a broad range of low frequencies, intermediate frequencies, and high frequencies even in a low-basis-weight region having low thickness. The composite sound-absorbing material according to the present invention is configured from two or more layers including a base material and a skin material, the skin material being positioned on the outermost layer, wherein the composite sound-absorbing material is characterized in that the ratio (skin material:base material) of the surface area (m/m) per unit area of the skin material and the surface area (m/m) per unit area of the base material is at least 1:5 and less than 1:40.

Composite sound-absorbing material

The present disclosure provides: a non-woven fabric for a sterilization packaging material, the non-woven fabric being capable of being compatible with all sterilization treatment methods and maintaining a sterile state in the interior without breaking even in a variety of environments in which the non-woven fabric can be assumed to be used as a sterilization packaging material; and a non-woven fabric for a sterilization packaging material, the non-woven fabric achieving both easy-peel properties that enable easy handling without breakage and barrier properties for retaining the sterile state in the interior.

Nonwoven fabric for sterilization packaging material

Provided is a non-woven fabric which is suitable for cleaning wipers, diapers, food packaging materials, etc., and has excellent water absorption and handling performance. The non-woven fabric according to the present invention contains a thermoplastic biodegradable resin, and is characterized in that fibers constituting the non-woven fabric have crimps, the flexural rigidity index in the mechanical direction (MD) of the non-woven fabric is 7.77-37.4 as defined by the following equation: flexural rigidity index in the mechanical direction (MD)=flexural rigidity (gf·cm) in the mechanical direction (MD)/{basis weight(g/m)}×10, and the bulk density of the non-woven fabric is 0.098 g/cmto 0.251 g/cm.

Non-woven fabric

To provide a polyketone porous film having heat resistance and chemical resistance and useful as a filter for filtration having a high particle collection efficiency and as a battery or capacitor separator having a low permeation resistance to ion and the like. A polyketone porous film comprising from 10 to 100 mass % of a polyketone as a copolymer of carbon monoxide and one or more olefins, wherein the polyketone porous film has a pore formed only by a polyketone, the pore diameter uniformity parameter as a value obtained by dividing the standard deviation of the pore diameter in the pore by an average pore diameter is from 0 to 1.0, and the average through hole diameter of the polyketone porous film is from 0.01 to 50 &#x3bc;m.

Polyketone porous film

A ceramic electronic component with metal terminals comprising a chip component formed with terminal electrodes at both ends, and a pair of metal terminals comprising a flat plate portion having a flat plate portion facing face provided so that it faces an end face of said chip component and connected to said terminal electrodes via a joining portion , and a mounting portion connected to one end portion of said flat plate portion and extending approximately perpendicular to said flat plate portion, wherein said mounting portion has a mounting portion bottom face forming an angle of approximately 270 degrees with respect to said flat plate portion, and a mounting portion upper face forming an angle of approximately 90 degrees with respect to said flat plate portion, and a solder adhering prevention area having lower wettability than said mounting portion bottom face is formed.

Ceramic electronic component with metal terminals

A ceramic electronic component comprising; including a chip component of approximately rectangular parallelepiped, a first metal terminal portion having a first flat plate portion facing a first end face, at least a pair of first fitting arm portions connected to the first flat plate portion, having a first engagement projection engaging with a first wraparound portion holding the first wraparound portion in between, and a first mounting portion connected to the first flat plate portion and extending approximately parallel to one side face, and a second metal terminal portion having a second flat plate portion facing the second end face, at least a pair of second fitting arm portions connected to the second flat plate portion, having a second engagement projection engaging with a second wraparound portion, holding the second wraparound portion in between, and a second mounting portion extending approximately parallel to one side face.

Ceramic electronic component

The present invention aims to provide an electronic component capable of reducing the occurrence of cracks at the joining portion with a board etc. A capacitor(laminated ceramic capacitor) being one example of the electronic component of the present invention is provided with an element assembly(ceramic) and a pair of external electrodesformed on both side surfaces of the element assembly. In the element assembly, a dielectric layerand an internal electrodeare laminated alternately. The external electrodehas such constitution that a first electrode layer connected with the internal electrode, a second electrode layer (electroconductive resin layer) including a hardened product of epoxy resin containing an epoxy compound having a molecular weight of 2000 or more and plural epoxy groups as the base compound, a third electrode layer composed of Ni and a fourth electrode layer composed of Sn are formed in this order from the element assembly side.

Electronic component

There is provided a polyketone comprising repeating units, 95-100 mole % of which are 1-oxotrimethylene and having an intrinsic viscosity of 2.5-20 dl/g, wherein the content of Pd element is 0-20 ppm, terminal structures include an alkyl ester group (terminal group A) and an alkyl ketone group (terminal group B), and the equivalent ratio of terminal group A/terminal group B is 0.1-8.0. The polyketone of the present invention can be used in any forms, such as fibers and films, and can be applied to a wide variety of the uses such as clothing, reinforcing materials for rubbers, resins, cements, and optical fibers, electronic materials, battery materials, civil engineering materials, medical materials, daily commodities, fishery materials, and packaging materials.

Polyketone and method for producing the same

The present invention aims to provide an electronic component capable of reducing the occurrence of cracks at the joining portion to a board etc. A capacitor(laminated ceramic capacitor) being one example of the electronic component is provided with an element assembly(ceramic) and a pair of external electrodesformed on both side surfaces of the element assembly. In the element assembly, a dielectric layerand an internal electrodeare laminated alternately. The external electrodehas such constitution that a first electrode layer connected with the internal electrode, a second electrode layer (electroconductive resin layer) including a hardened product of thermohardening resin containing a polyphenol compound having a side chain composed of an aliphatic group, a third electrode layer composed of Ni and a fourth electrode layer composed of Sn are formed in this order from the element assembly side.

A plasma display panel with quick firing nature and high speed scanning having a plurality of display cells defined by parallel cathode electrodes and parallel anode electrodes perpendicular to said cathode electrodes. The cells along a cathode electrode discharge simultaneously either strongly or weakly according to the currents in the anode electrodes, and said current in the anode electrodes is switched according to the picture pattern to be displayed. A strongly discharged cell provides a bright large discharge which is visible through a cathode electrode, and a weakly discharged cell provides a dark small discharge which is blinded by a cathode electrode itself and is invisible, but merely functions as a seed cell for firing adjacent cells. As all the cells function both as display cells and seed cells, quick firing of cells or high speed scanning of light spots along the anode electrodes is accomplished although no specific seed electrode for mere seed discharge is provided. And, density of cells or resolution power of a picture of the present invention is improved, as no specific seed electrode is provided.

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Tokyo, Japan

Takashi Komatsu