Mitsui Minings & Melting Co., Ltd.

Other

Toyota Jidosha Kabushiki Kaisha

Koichi Miyake

Naohiko Abe

Koji Taniguchi

Hiromu Watanabe

Yuichi Senoo

Tomoyuki Maeda

Makoto Kano

Shinichi Obata

Kenji Suzuki

Hidenobu Matsuyama

Susumu Takahashi

Yoshihiro Yoneda

Tatsuya Arai

Hideaki Matsushima

Hiroki Takahashi

Katsuhiko Yoshimaru

Kenji Tsushima

Kazuhiko Kato

Ayumu Tateoka

Ryuji Ninomiya

Shinichi Yamauchi

Sakiko Tomonaga

Ryoma Tsukuda

Motoki Koyama

Satoru Okada

Takeshi Ojiro

Kenichi Amitani

Koyu Ota

Shinya Hiraoka

Hiromu Watanbe

Fumiaki Hosokoshi

Touru Kurimoto

Yoshiaki Uwazumi

Kazutaka Hozumi

Katsushi Yano

Hiroaki Nakahara

Tadahiro Takami

Provided is a method with which it is possible to easily produce an electrode catalyst having excellent catalytic performance such as kinetically controlled current density. The method involves: a dispersion liquid preparation step of preparing a dispersion liquid by mixing (i) at least one type of solvent selected from the group consisting of sulfoxide compounds and amide compounds, (ii) a catalyst carrier powder constituted by a metal oxide, (iii) a platinum compound, (iv) a transition metal compound, and (v) an aromatic compound including a carboxyl group; and a loading step of heating the dispersion liquid to thereby load a platinum alloy of platinum and a transition metal on a surface of the catalyst carrier powder.

Method for producing electrode catalyst, and electrode catalyst

This method for producing an electrode catalyst includes: a dispersion liquid preparation step wherein a dispersion liquid is prepared by mixing (i) at least one solvent selected from the group consisting of sulfoxide compounds and amide compounds, (ii) a catalyst carrier powder composed of a metal oxide, (iii) a platinum compound, (iv) a transition metal compound and (v) an aromatic compound that contains a carboxyl group; a loading step wherein the dispersion liquid is heated so that a platinum alloy of platinum and a transition metal is loaded on the surface of the catalyst carrier powder; a solid-liquid separation step wherein a dispersoid is separated from the dispersion liquid after the loading step, thereby obtaining a catalyst powder wherein the catalyst carrier powder is loaded with the platinum alloy; and a heat treatment step wherein the catalyst powder is heated under vacuum or in a reducing gas atmosphere.

Disclosed is a tin oxide containing antimony and at least one element A selected from the group consisting of tantalum, tungsten, niobium, and bismuth. The antimony and the at least one element A selected from the group consisting of tantalum, tungsten, niobium, and bismuth are preferably dissolved in a solid state in tin oxide. The ratio of the number of moles of the element A to the number of moles of antimony, i.e., [(the number of moles of the element A/the number of moles of antimony)], is preferably 0.1 to 10.

Tin oxide, electrode catalyst for fuel cells, membrane electrode assembly, and solid polymer fuel cell

An object of the present invention is to provide a copper foil inexpensive and sufficient in tensile strength even after heat treatment. The copper foil includes zinc in a content range of 0.02% by mass to 2.7% by mass in the total mass of the entire copper foil, and if the regions in thicknesses direction from both surfaces of the copper foil where occupies 5% by mass in the total mass of the entire copper foil are referred to as the respective external layers and a region between one external layer and the other external layer is referred to as an internal layer, the internal layer includes copper as a main element and includes 100 ppm or more of one or mixture of small amount-elements selected from carbon, sulfur, chlorine and nitrogen, and includes zinc at 10% or more in the total mass of zinc included in the entire copper foil.

Copper foil, negative electrode current collector and negative electrode material for non-aqueous secondary battery

An object of the present invention is to provide a copper foil excellent in softening resistance performance which reduces decrease in tensile strength after heat treatment at about 350&#xb0; C. to 400&#xb0; C. In order to achieve the object, a surface-treated copper foil provided with a rust-proofing treatment layer on both surfaces of a copper foil in which a rust-proofing treatment layer is constituted by zinc alloy, and the either rust-proofing treatment layer is a zinc alloy layer having zinc amount of 20 mg/mto 1,000 mg/m; and the copper foil contains one or two or more of small amount elements selected from carbon, sulfur, chlorine and nitrogen, and a sum amount thereof is 100 ppm or more is adopted.

Surface-treated copper foil

Copper powder is provided, which, while having fine granularity, does not loose either resistance to oxidation or balance in conductivity, and furthermore, copper powder for conductive paste in which variations in shape and granularity are small and having a low concentration in oxygen content. The copper powder for conductive paste contains 0.07 to 10 atomic % Al inside each copper particle in the powder.

Copper powder for conductive paste and conductive paste

An automatic analytical instrument comprising a plurality of specimen tubes to store specimens, a plurality of storage tubes to store a part of the specimens contained in the specimen tubes by dispensing, a first dispensing unit to dispense the specimens contained in the specimen tubes into the storage tubes, a first turning table to hold a plurality of the storage tubes and transfer them by revolution, a plurality of analytical tubes to store a part of the specimens contained in the storage tubes by dispensing, a second dispensing unit to dispense the specimens contained in the storage tubes into the analytical tubes, a second turning table to hold a plurality of the analytical tubes and transfer them by revolution, an analytical unit to analyze the specimens contained in the analytical tubes, a transfer unit to transfer the analytical tubes held in the second turning table to the analytical unit, an delivering unit to deliver the analytical tubes after analysis is completed, a tube supply unit to supply the storage tubes and the analytical tubes which fall naturally into the first turning table and the second turning table, and a control unit to control dispensing by the first dispensing unit and the second dispensing unit, revolution by the first turning table and the second turning table, analysis by the analytical unit, transfer by the transfer unit, delivery by the delivering unit and supply by the tube supply unit.

Automatic analytical instrument

A valve seat ( ) is formed by build-up cladding by irradiating a laser beam on a copper alloy powder ( ) provided in the rim of a port ( ) formed in an engine cylinder head ( ). The copper alloy powder ( ) consists of copper (Cu), 6-9 wt % nickel (Ni), 1-5 wt % silicon (Si), and 1-5 wt % of one of molybdenum (Mo), tungsten (W), tantalum (Ta), niobium (Nb) and vanadium (V). Due to this composition, the valve seat ( ) has few microcracks and excellent abrasion resistance.

Abrasion resistant copper alloy, copper alloy powder for build-up cladding, and engine cylinder head

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Saitama, Japan

Koichi Miyake