Tdk Corporation

Sumitomo Electric Industries, Limited

Sony Corporation

Global Oled Technology LLC

Eastman-Kodak Company

Sumitomo Metal Industries, Inc.

Sae Magnetics (h.k.) Limited

Other

Headway Technologies, Incorporated

Nihon Kogyo Kabushiki Kaisha

Nippon Telegraph and Telephone Corporation

Nippon Steel Sumitomo Metal Corporation

Nippon Telegraph and Telephone Public Corporation

Nobuyuki Mori

Seiichi Mizukoshi

Koji Shimazawa

Makoto Kohno

Seiichi Takayama

Kouichi Onomura

Yasuhiro Ito

Nozomu Kawabe

Yukihiro Oishi

Ryuichi Inoue

Yoshihiro Tsuchiya

Shinji Hara

Masatada Numano

Kosuke Tanaka

Yoshitaka Sasaki

Takashi Honda

Ryuji Fujii

Osamu Shindo

Nobuyuki Okuda

Ryo Hosoi

Kazuaki Takanuki

Youichi Ando

Keiichi Nakamura

Motonori Nakamura

Atsushi Kimura

Mutsumi Tanida

Junichi Matsumoto

Takahiko Kitamura

Takao Amazawa

Hideo Oikawa

Masayuki Nishizawa

Iwao Kyono

Hideo Miyazaki

Yoshiharu Katoh

Masami Kuroki

Kenneth Alan Parulski

Hiromichi Ishibashi

Tsutomu Chou

Kei Hirata

Eiji Komura

Masatoshi Majima

Kenji Yokoyama

Shinji Inazawa

Shoichiro Sakai

Hideki Moriguchi

Hiroshi Kubota

Koji Mori

Keiichi Tsuda

Keita Kawamori

Masami Ikeda

Hisayoshi Watanabe

Yasutoshi Fujita

Masaki Izumi

Akihiro Sakamoto

Michitaka Nishiyama

Yoshiyuki Nakao

Hideki Tanzawa

Osamu Mizuno

Hiroshi Sato

Kazuya Tashiro

Akihiro Kaneko

Masafumi Maeda

Masaaki Fujii

Nakahachiro Honma

Nakahachiro Honna

Fusazo Wada

Shozi Nakamura

Masahiko Ito

Noritsugu Sugimoto

Chimoto Sugiyama

Makoto Akesaka

Toshiomi Yokoyama

An antenna is provided with a dielectric layer, a metal layer provided on one surface of the dielectric layer, a radiation element provided on the other surface of the dielectric layer, the radiation element including a slit portion in a central portion, a radiation system of which is magnetic field current radiation by electric field induction, a contactless feed element arranged above the slit portion, and a parasitic radiation element, a radiation system of which is electric field current radiation by magnetic field induction.

Antenna and electronic device

An antenna apparatus includes: a plurality of first antenna elements to be connected to a first power-feeding point; and a plurality of second antenna elements to be connected to a second power-feeding point, the plurality of first antenna elements and the plurality of second antenna elements being respectively radially arranged, in which one of the first antenna elements, which is selected, is connected to the first power-feeding point through a first switch apparatus and one of the second antenna elements, which is selected, is connected to the second power-feeding point through a second switch apparatus.

Antenna apparatus and wireless apparatus

There are provided a magnesium alloy coil stock having good flatness and a method for producing the magnesium alloy coil stock, and a magnesium alloy structural member that uses the coil stock and a method for producing the magnesium alloy structural member. The coil stock is obtained by coiling a sheet composed of a magnesium alloy in a cylindrical shape, and the internal diameter of the coil stock is 1000 mm or less. The coil stock can be produced by rolling a cast material obtained by subjecting a magnesium alloy to continuous casting, subjecting the rolled sheet to warm leveling, and coiling the worked sheet in a cylindrical shape while the temperature just before coiling is decreased to 100&#xb0; C. or less.

Magnesium alloy coil stock

A method of manufacturing an electronic device includes a positioning step of positioning a first member supporting a laser diode with respect to a second member having a waveguide, a bonding step of bonding the first member and the second member together, and a checking step of checking the accuracy of positioning of the first member with respect to the second member. In the positioning step, the laser diode is energized to allow laser light to be emitted, and the laser light is allowed to be incident on the incidence end of the waveguide. In the bonding step, a bonding material is melted by irradiating the first member with heating light while the laser diode is not energized. In the checking step, the laser diode is energized again.

Method of manufacturing an electronic device

There are provided a method for producing a magnesium alloy sheet having good press formability and a magnesium alloy coil stock obtained by coiling the magnesium alloy sheet. After a raw material sheetcomposed of a magnesium alloy is preheated to 280&#xb0; C. or less, the heated raw material sheetis rolled with a reduction rolland the obtained long rolled sheet is coiled. The surface temperature of the reduction rollis set to be 230&#xb0; C. or more and 290&#xb0; C. or less. The preheating, rolling, and coiling are repeatedly performed in a continuous manner. By setting both the temperatures of the raw material sheetand reduction rollto be certain temperatures, the rolling property of the raw material sheet can be improved and the raw material sheet can be properly rolled in a continuous manner. In addition, a variation in temperature in the width direction of the reduction roll can be suppressed and uniform rolling can be performed, resulting in the production of a long magnesium alloy sheet. In this magnesium alloy sheet, working strain is sufficiently introduced by rolling and an increase in the size of crystal grains is suppressed. Thus, the magnesium alloy sheet has good press formability. Furthermore, a coil stock in which telescoping is not easily caused and that has good appearance is obtained.

Method for producing magnesium alloy sheet and magnesium alloy coil stock

Provided are a rolled Mg alloy material whose mechanical properties are locally different in a width direction, a Mg alloy structural member produced by plastically working the rolled Mg alloy material, and a method for producing the rolled Mg alloy material. The method for producing a rolled Mg alloy material includes rolling a Mg alloy material with a reduction roll. The reduction roll has three or more regions in the width direction. The temperature is controlled in each of the regions so that a difference between a maximum temperature and a minimum temperature exceeds 10&#xb0; C. in the width direction of a surface of the reduction roll. The rolled state in the width direction is varied by varying a difference in temperature over the width direction of the reduction roll. As a result, it is possible to produce a rolled Mg alloy material whose mechanical properties are locally different in the width direction.

Rolled magnesium alloy material, magnesium alloy structural member, and method for producing rolled magnesium alloy material

The invention offers a magnesium alloy sheet having excellent warm plastic formability, a production method thereof, and a formed body produced by performing warm plastic forming on this sheet. The magnesium alloy sheet is produced by giving a predetermined strain to a rolled sheet RS that is not subjected to a heat treatment aiming at recrystallization. The sheet is not subjected to the foregoing heat treatment even after the giving of a strain. The strain is given through the process described below. A rolled sheet RS is heated in a heating furnace. The heated rolled sheet RS is passed between rollersto give bending to the rolled sheet RS. The giving of a strain is performed such that the strain-given sheet has a half peak width of 0.20 deg or more and 0.59 deg or less in a (0004) diffraction peak in monochromatic X-ray diffraction. The alloy sheet exhibits high plastic deformability by forming continuous recrystallization during warm plastic forming through the use of the remaining strain.

Magnesium alloy sheet

An object of the present invention is to provide air cooling equipment for a heat treatment process for a martensitic stainless steel pipe, which is capable of shortening the time required for the heat treatment process by enhancing the cooling efficiency at the time when the inner surface of steel pipe is air cooled in the heat treatment ent process. Air cooling equipmentfor a heat treatment process for a martensitic stainless steel pipe P in accordance with the present invention comprises: a conveying devicefor intermittently conveying the steel pipe P in the direction substantially at right angles to the longitudinal direction of the steel pipe P; and an air cooling deviceprovided with a nozzlefor spraying air Bi toward the inner surface of the steel pipe P, the nozzlebeing arranged along the longitudinal direction of the steel pipe P at a stop position of the steel pipe P intermittently conveyed by the conveying deviceso as to face to an end of the steel pipe P.

Air cooling equipment for heat treatment process for martensitic stainless steel pipe or tube

The invention offers a magnesium alloy sheet material having excellent plastic processibility and rigidity and a magnesium alloy formed body having excellent rigidity. The sheet material has magnesium alloy that forms the matrix containing hard particles. The region from the surface of the sheet material to a position away from the surface by 40% of the thickness of the sheet material is defined as the surface region, and the remaining region as the center region. Hard particles existing in the center region have a maximum diameter of more than 20 &#x3bc;m and less than 50 &#x3bc;m, and hard particles existing in the surface region have a maximum diameter of 20 &#x3bc;m or less. Because the hard particles existing at the surface side are fine particles, they are less likely to become the starting point of cracking or another defect at the time of plastic processing. Because the hard particles existing in the center region are coarse, they can increase the rigidity of the sheet material.

Magnesium alloy sheet material

The method of producing a magnesium alloy joined part has the following steps: a joining step of joining a reinforcing material made of metal to a plate material made of magnesium alloy without allowing an organic material to remain at the joined portion and a plastic-working step of performing plastic working on the plate material to which the reinforcing material is joined. A desirable means of joining the reinforcing material to the plate material can be to use an inorganic adhesive. Because the magnesium alloy joined part is formed by a structure in which the reinforcing material is joined to the plate material, in comparison with the case where the reinforcing material is formed by machining or the like, the magnesium alloy structural member can be obtained with high production efficiency.

Magnesium alloy joined part and production method thereof

A method of manufacturing an electronic device includes a first bonding step of bonding an electronic component and a first member together via a first bonding layer and a second bonding step of bonding the first member and a second member together via a second bonding layer after the first bonding step. The second bonding layer includes a bonding material layer made of a bonding material. In the second bonding step, with the bonding material interposed between the first and second members before being bonded together, the bonding material is heated and melted using light traveling through the first member. The first member is made of Si. The light has a wavelength in the range of 1100 to 15000 nm.

Method for manufacturing an electronic device including a light absorption layer

A near-field light generator includes a waveguide, a plasmon generator, and an MgO layer. The waveguide includes a core and a cladding. The plasmon generator has an outer surface including a plasmon exciting part and a near-field light generating part, and is configured so that a surface plasmon is excited on the plasmon exciting part based on light propagating through the core, and the near-field light generating part generates near-field light based on the surface plasmon. The MgO layer is in contact with at least part of the outer surface of the plasmon generator excluding the near-field light generating part, and not in contact with the core. The cladding is lower in refractive index than the core and the MgO layer.

Near-field light generator including a plasmon generator and a waveguide

The thermally-assisted magnetic recording head includes: a laser light source having an emission surface, the emission surface allowing laser light to be emitted therefrom; a waveguide having a core and a cladding, the core allowing the laser light emitted from the laser light source to propagate therethrough, and the cladding surrounding the core; a magnetic pole; and a plasmon generator. Each of the core and the cladding has an end surface facing the emission surface, and the end surface of the cladding suppresses returning of the laser light to the laser light source.

Thermally-assisted magnetic recording head with optically isolating waveguide, head gimbal assembly, head arm assembly, magnetic disk unit, and light transmission unit

A magnesium alloy member having mechanical properties and corrosion resistance and a method of manufacturing the magnesium alloy member are provided. A magnesium alloy member has a base material made of a magnesium alloy, and an anticorrosive film formed on the base material. The base material is a rolled magnesium alloy including 5 to 11% by mass of Al. By using a base material including a large amount of Al, a magnesium alloy member having excellent mechanical properties and high corrosion resistance can be produced. In addition, by using a rolled material, the number of surface defects at the time of casting is small, and the frequency of compensation processes such as undercoating and puttying can be reduced.

Magnesium alloy member and method of manufacturing the same

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Tokyo, Japan

Nobuyuki Mori