Jfe Steel Corporation

Tdk Electronics Company, Limited

Wired Japan Co., Ltd.

Hiroshi Sugihara

Toshiaki Izumi

Seitoku Saito

Satoshi Uenosono

Takayoshi Kobuke

Akio Sonobe

Yukiko Ozaki

Fumio Maruta

Kazuo Takada

Hirofumi Enokido

An iron-ion supply material capable of efficiently supplying iron ions to plants is provided. An iron-ion supply material that acts as an iron-ion supply source for supplying iron ions contributing to plant growth comprises an iron powder having an iron content of 80% by mass or more, wherein 50% by mass or more of the whole iron powder has a particle size of 100 &#x3bc;m or more and 10 mm or less.

Iron-ion supply material

An iron-based mixed powder for powder metallurgy having improved machinability, without degrading the mechanical property of a sintered body made by compacting the iron-based mixed power. The iron-based mixed powder comprises a mixture of an iron-based powder, a powder for an alloy, a powder for machinability improvement, and a lubricant. The powder for machinability improvement comprises a manganese sulfide powder, and at least one selected from the group consisting of a calcium phosphate powder and a hydroxy apatite powder. Alternatively the powder for machinability improvement has an average particle diameter of 1 to 60 micrometers and comprise manganese sulfide powder and calcium fluoride powder.

Iron-based mixed powder for powder metallurgy and sintered body

A method for manufacturing sponge iron includes heating iron oxide together with a solid reducing agent to reduce the iron oxide into sponge iron, wherein the iron oxide includes a mixture of powdered hematite and powdered iron ore or a mixture of powdered hematite and powdered mill scale, the powdered hematite has a specific surface area of 2.0 m/g or more, and the content of the powdered hematite is 5-45% by mass with respect to the total quantity of iron oxide.

Method for producing sponge iron, and reduced iron powder and method for production thereof

The present invention provides an optical fiber, an optical fiber cable and a radiation detecting system at a low cost. Further, the radiation detecting system is provided which can adequately monitor the radiation leak without delay. The optical fiber cable comprises: an optical fiber including; a corehaving lightwave guide property and extending along one direction; a clad layercovering over a peripheral surface of the core; and a scintillator material dispersed in the clad layerand emitting light when radiation is applied, a radiation-shielding layercovering substantially over a periphery of the optical fiber, and a gaplocated in at least one part of the radiation-shielding layer. The radiation detecting system comprises an optical fiber cableadapted to emit light at a region where radiation is applied and transmitting the emitted light, photoelectric conversion meansconnected to at least one end of the optical fiber cable, and processing meansdetecting when radiation is applied in accordance with an output signal of the photoelectric conversion means

Optical fiber, optical fiber cable, and radiation detecting system using such

The present invention provides an optical fiber, an optical fiber cable and a radiation detecting system at a low cost. Further, the radiation detecting system is provided which can adequately monitor the radiation leak without delay. The optical fiber cable comprises: an optical fiber including; a core having lightwave guide property and extending along one direction; a clad layer covering over a peripheral surface of the core ; and a scintillator material dispersed in the clad layer and emitting light when radiation is applied, a radiation-shielding layer covering substantially over a periphery of the optical fiber , and a gap located in at least one part of the radiation-shielding layer . The radiation detecting system comprises an optical fiber cable adapted to emit light at a region where radiation is applied and transmitting the emitted light, photoelectric conversion means connected to at least one end of the optical fiber cable , and processing means detecting when radiation is applied in accordance with an output signal of the photoelectric conversion means

A magnetic recording medium has plural magnetic layers on a non-magnetic substrate. The magnetic particles are orientated in substantially the same tilt direction for major axes of the particles in each magnetic layer and in cross tilt directions for major axes of the particles in the adjacent magnetic layers.

Magnetic recording medium

A thin metallic layer type magnetic recording medium having thin metallic layers in a structure comprises a layer in which a tilt angle of a metallic particle direction to the normal line to said substrate gradually increases depending upon an increase of a distance from said substrate; and a layer in which a tilt angle of a metallic particle direction to the normal line to said substrate gradually decreases depending upon an increase of a distance from said substrate.

Magnetic recording medium and apparatus for preparing the same

A magnetic recording medium is prepared by a tilt vapor deposition of magnetic particles from a vapor thereof on a substrate running along a peripheral surface of a cylindrical can in vacuum wherein plural cans are used to deposit said magnetic particles at substantially the same tilt angle on each of said cans.

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Tokyo, Japan

Hiroshi Sugihara