Hitachi Metals, Ltd.

Dowa Electronics Materials Co., Ltd.

Dowa Mining Co., Ltd.

Tdk Corporation

Yokogawa Electric Corporation

Oerlikon Surface Solutions Ag, Pfaffikon

Mitsubishi Hitachi Tool Engineering, Ltd.

Toyota Jidosha Kabushiki Kaisha

Omron Corporation

Proterial, Ltd.

Moldino Tool Engineering, Ltd.

Hitachi Tool Engineering, Ltd.

Dowa Metals & Mining Co., Ltd.

Shipbuilding Research Centre of Japan

Umetoku Co., Ltd

Kenichi Inoue

Atsushi Ebara

Masahiro Yoshida

Ken Inoue

Yoshiyuki Michiaki

Kazuyuki Matsumoto

Toshihiko Ueyama

Shuho Koseki

Fumiaki Honda

Kana Morishita

Shinichi Konno

Kimitaka Sato

Tomoya Sasaki

Kozo Ogi

Takatoshi Fujino

Norihisa Ando

Masahiro Mori

Kosuke Yazawa

Sunao Masuda

Denis Kurapov

Kayou Matsunaga

Masahide Kawabata

Susumu Katsuragi

Kyoso Masuda

Kenji Takimoto

Shigetoshi Tanido

Chiaki Ito

Hirokazu Tairaku

Saleh Breik Abusuilik

Tomonori Sakuta

Shinya Ito

Takahiro Yamada

Shinya Sasaki

Takayuki Yoshida

Satoshi Murakami

Toshihiro Uehara

Akitoshi Yoshii

Kazutaka Okamoto

Kazunori Sato

Tadashi Kitamura

Masao Mabuchi

Kazushi Sano

Kenji Masada

Seiichi Hisano

Hiroshi Shiratori

Kazuhisa Saito

Yoshiki Satou

Kotaro Nakamura

Koji Utsumi

Kazuyuki Kubota

Katsutaka Tanabe

Yuuzoh Fukunaga

Kazuya Shinagawa

Yuki Kaneshiro

Nobuyuki Toyoura

Wolfgang Kalss

Itto Sugimoto

Tadashi Furuya

Seiji Oka

Tatsuya Shouji

Yoshihiro Minagi

Shinichi Uchiyama

Yoshikazu Suzuki

Katsuhiro Obata

Akito Inoue

Shigeyoshi Fujihara

Shinji Kayama

Akihiro Asano

Hideyuki Fujimoto

Yuji Tsurukawa

Nobuhiro Ikeda

Toru Otomo

Toshifumi Miyamoto

Naoki Hayashi

Kousuke Uda

Takashi Ogisu

Syuuhou Koseki

Daiki Shinno

Akio Sawabe

Takehito Tomoi

Katsuyoshi Takekuma

Shigeo Ohnishi

Yoshihiro Honma

Haruhiro Otani

Yuto Hiyama

Morishita Kana

There are provided an inexpensive copper powder, which has a low content of oxygen even it has a small particle diameter and which has a high shrinkage starting temperature when it is heated, and a method for producing the same. While a molten metal of copper heated to a temperature, which is higher than the melting point of copper by 250 to 700° C. (preferably 350 to 650° C. and more preferably 450 to 600° C.), is allowed to drop, a high-pressure water is sprayed onto the heated molten metal of copper in a non-oxidizing atmosphere (such as an atmosphere of nitrogen, argon, hydrogen or carbon monoxide) to rapidly cool and solidify the heated molten metal of copper to produce a copper powder which has an average particle diameter of 1 to 10 μm and a crystallite diameter Dxof not less than 40 nm on (200) plane thereof, the content of oxygen in the copper powder being 0.7% by weight or less.

Copper powder and method for producing same

A method for manufacturing a forged article, capable of improving the durability of a die for forging is provided. The method, includes forging a steel material, by using a die, by spraying or applying a water-soluble polymer lubricant containing 0.01 to 0.98 mass % of a water-soluble sulfate onto a working surface of the die, the die being made of a raw material having a constituent composition of by mass %, of 0.4 to 0.7% of C, 1.0% or less of Si, 1.0% or less of Mn, 4.0 to 6.0% of Cr, 2.0 to 4.0% of (Mo+½W), 0.5 to 2.5% of (V+Nb), 0 to 1.0% of Ni, 0 to 5.0% of Co, 0.02% or less of N, and a remnant composed of Fe and impurities, and having hardness of 55 to 60 HRC, and the die including a nitrided layer or a nitrosulfidized layer on the working surface thereof.

Method for manufacturing forged article

An object is to provide an alloy composition that has a sufficient melting point for casting of an aluminum alloy, also has high hardness, and can suppress an occurrence of galling. The alloy composition of the present invention includes: a Mo—Cr-based dendritic structure; and a Ni—Al-based interdendritic structurethat fills a periphery of the Mo—Cr-based dendritic structure. The alloy composition of the present invention can adopt a chemical composition I in which when Mo+Cr+Ni+Al=100 at. % holds, Ni+Al=15 to 50 at. % and Mo+Cr=50 to 85 at. % hold; or a chemical composition II in which Ni+Al=40 to 70 at. % and Mo+Cr=30 to 60 at. % hold.

Alloy composition, method for producing alloy composition, and die

While a molten metal of copper heated to a temperature, which is higher than the melting point of copper by 250 to 700&#xb0; C. (preferably 350 to 650&#xb0; C. and more preferably 450 to 600&#xb0; C.), is allowed to drop, a high-pressure water is sprayed onto the heated molten metal of copper in a non-oxidizing atmosphere (such as an atmosphere of nitrogen, argon, hydrogen or carbon monoxide) to rapidly cool and solidify the heated molten metal of copper to produce a copper powder which has an average particle diameter of 1 to 10 &#x3bc;m and a crystallite diameter Dxof not less than 40 nm on (200) plane thereof, the content of oxygen in the copper powder being 0.7% by weight or less.

The present invention discloses a coated cutting tool having a hard coating film on a surface of the tool. The hard coating film is a nitride, the content ratio of titanium (Ti) with respect to a total amount of metal elements (including semimetal elements) is in a range of 70 at % to 95 at %, the content ratio of silicon (Si) with respect to the total amount of metal elements (including semimetal elements) is in a range of 5 at % to 30 at %, and the content ratio of argon (Ar) with respect to the total amount of metal elements (including semimetal elements) and non-metal elements is 0.1 at % or less. The hard coating film has a NaCl type crystal structure and has an average crystal grain size in a range of 5 nm to 30 nm.

Coated cutting tool

A silver powder which has a small content of carbon and which is difficult to be agglutinated, and a method for producing the same. While a molten metal, which is prepared by melting silver to which 40 ppm or more of copper is added, is allowed to drop, a high-pressure water is sprayed onto the molten metal to rapidly cool and solidify the molten metal to produce a silver powder which contains 40 ppm or more of copper, 0.1% by weight or less of carbon and 0.1% by weight or less of oxygen and wherein the particle diameter (D50 diameter) corresponding to 50% of accumulation in volume-based cumulative distribution of the silver powder, which is measured by means of a laser diffraction particle size analyzer, is in the range of from 1 &#x3bc;m to 15 &#x3bc;m, the average particle diameter (SEM diameter) of single particles being in the range of from 1 &#x3bc;m to 8 &#x3bc;m when it is measured by means of a field emission scanning electron microscope (SEM), the ratio (SEM diameter/D50 diameter) of the SEM diameter to the D50 diameter being in the range of from 0.3 to 1.0.

Silver powder and method for producing same

There is provided a silver powder which has a small average particle diameter and a small thermal shrinkage percentage, and a method for producing the same. While a molten metal of silver heated to a temperature (1292 to 1692&#xb0; C.), which is higher than the melting point (962&#xb0; C.) of silver by 330 to 730&#xb0; C., is allowed to drop, a high-pressure water is sprayed onto the molten metal of silver (preferably at a water pressure of 90 to 160 MPa) to rapidly cool and solidify the molten metal of silver to powderize silver to produce a silver powder which has an average particle diameter of 1 to 6 &#x3bc;m and a shrinkage percentage of not greater than 8% (preferably not greater than 7%) at 500&#xb0; C., the product of the average particle diameter by the shrinkage percentage at 500&#xb0; C. being 1 to 11 &#x3bc;m&#xb7;% (preferably 1.5 to 10.5 &#x3bc;m&#xb7;%).

An object of the present invention is to provide metal powder that can be used to form an external electrode, which is excellent in solder wettability and solder leach resistance while having a layer structure with fewer layers than in the related art and, furthermore, is excellent in electrical conductivity. This silver-coated alloy powder comprises a coating layer on a surface of an alloy core particle containing copper, nickel, zinc, and inevitable impurities, the coating layer containing silver.

Silver-coated alloy powder, electrically conductive paste, electronic part, and electric device

A method of manufacturing an electronic device includes preparing a chip component with a terminal electrode. A terminal plate is prepared. A connection member is placed between an end surface of the terminal electrode and an inner surface of the terminal plate. The terminal plate and the terminal electrode are joined using the connection member by bringing a press head into contact with an outer surface of the terminal plate and pressing and heating the terminal plate against the terminal electrode.

Method of manufacturing electronic device and the same

A plurality of electronic elementsare arranged in a second direction Dorthogonal to a first direction Dwhich is a facing direction of external electrodesandforming a pair in the first electronic element groupA and the second electronic element groupB. The first electronic element group SA and the second electronic element groupB are disposed side by side in the first direction D. The first terminalis disposed between the first electronic element groupA and the second electronic element groupB in the first direction D. The second terminalsandare disposed at positions with the first electronic element groupA and the second electronic element groupB respectively interposed between the second terminals and the first terminalin the first direction D

Electronic component

The present invention pertains to high-strength/high-ductility alloys, and in particular, provides high-strength composite particles comprising a ceramic phase and a metal phase, a composite powder, a method for manufacturing composite particles, and a method for manufacturing a composite member. Composite particles including a ceramic phase and a metal phase, wherein the composite particles are characterized in that the porosity is no greater than 45% in area ratio in cross-section, and the area ratio of the metal phase, where the total area of the ceramic phase and the metal phase is 100%, is at least 20%. A composite powder characterized in including a plurality of the composite particles.

Composite particles, composite powder, method for manufacturing composite particles, and method for manufacturing composite member

An object of the present invention is to provide a phosphorus-containing copper powder with good volume resistivity and a small carbon content by suppressing an oxygen content to a relatively low value even if a particle size is made small, and a method for producing the same. In the phosphorus-containing copper powder containing phosphorus, a ratio of an oxygen content (wt. %) to a BET specific surface area (m/g) (oxygen content/BET specific surface area) is 0.90 wt. %&#xb7;g/mor less, a divalent copper compound is present on a surface of particles constituting the phosphorus-containing copper powder, a carbon content is 0.10 wt. % or less, and D50 is 7.11 &#x3bc;m or less.

Phosphorus-containing copper powder and method for producing the same

A method for producing a tool coated with a hard coating, the method including the following steps: applying a TiAIN coating layer onto a substrate with a first magnetron sputtering process and applying a TiSiN coating layer onto the TiAIN layer with a second magnetron sputtering process, where x is smaller than or equal to 0.85 and preferably between and including 0.80 and 0.70 whereas the second magnetron sputtering process is performed with power densities greater than 100 W/cmand as such is a HIPIMS process.

Method for producing a double-layer coated cutting tool with improved wear resistance

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Tokyo, Japan

Kenichi Inoue