Muroran, Japan
Muroran, Japan

Japan Steel Works, Ltd. is a steel manufacturer founded in Muroran, Hokkaidō, Japan in 1907. Wikipedia.

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Patent
Japan Steel Works | Date: 2017-03-31

The present invention provides an efficient heat treatment such as activation treatment of impurities on a substrate such as a thick silicon wafer with large heat capacity by laser annealing. Provided is a laser annealing apparatus 1 for heat-treating a surface of a substrate 30 comprising: a pulse oscillation laser source 10 which generates a pulse laser with gentle rise time and long pulse width; a continuous wave laser source 20 which generates a near-infrared laser for assisting annealing; optical systems 12, 22 which shape and guide beams 15, 25 of the two types of lasers respectively so as to irradiate the surface of the substrate 30 therewith; and a moving device 3 which moves the substrate 30 relatively to the laser beams 15, 25 to allow scanning of the combined irradiation of the two types of laser beams. According to this apparatus, deep activation of impurities can be performed in a thick semiconductor substrate with large heat capacity while securing sufficient light penetration depth and thermal diffusion length therefor.


A dimension in a Y-direction of a slit section (26) decreases gradually as a distance from an inflow port (23) in an X-direction increases. A cross-section of a manifold section (25) that is orthogonal to the X-direction decreases gradually as a distance from the inflow port (23) in the X-direction increases.


A dimension in a Y-direction of a slit section (26) decreases gradually as a distance from an inflow port (23) in an X-direction increases. A cross-section of a manifold section (25) that is orthogonal to the X-direction decreases gradually as a distance from the inflow port (23) in the X-direction increases.


The present invention provides a fiber-reinforced resin intermediate material, including not only a thermoplastic resin but also a thermosetting resin, in which defects such as voids are difficult to be generated and which is excellent in shaping ability; and a method for manufacturing the same. The fiber-reinforced resin intermediate material according to the present invention is a fiber-reinforced resin intermediate material formed by attaching a resin to an outer surface part of a reinforcing fiber substrate formed of reinforcing fibers subjected to opening and heating the resin to a temperature equal to or higher than the melting point of the resin to impregnate the reinforcing fiber substrate with the resin, wherein the reinforcing fiber substrate has void space that is opened on an outer surface thereof and the resin is in a semi-impregnated state.


Patent
Yamanashi University and Japan Steel Works | Date: 2015-07-24

A tunable dual-band resonator and a tunable dual-band band-pass filter using the tunable dual-band resonator. The dual-band resonator is structured such that a stub is added to each half-wavelength resonator provided with half-wavelength resonator protrusions (capacity-component adjust parts). The dual-band resonator is made up of an odd-number mode resonator in a shape including a ground conductor disposed on the back surface of a dielectric body, and a strip conductor disposed on the top surface thereof, and an even-number mode resonator in such a shape as to be formed when the stub is connected to an end face on the opposite side of the open-end of the strip, characterized in that a dielectric rod circular in cross section is provided in the space above the respective stubs, and another dielectric rod circular in cross section is provided in the space above the half-wavelength resonator protrusions.


Patent
Japan Steel Works | Date: 2016-11-02

A bearing is provided which supports an inner pipe flange part. An end face flange is formed so as to be inclined on a center of an inner flange part as a supporting point and a load is applied by a pushing and pulling device through the bearing in a direction intersecting at right angles to an axial direction of a roll to incline the end face flanges at both sides by prescribed angles. Thus, a rotation moment is applied to an end face of the outer cell to adjust a crown of the outer cell.


Patent
Japan Steel Works | Date: 2016-12-07

A multi-stage roll type sheet molding apparatus includes four or more molding rolls including a touch molding roll, a main molding roll and finish molding rolls disposed in the horizontal direction in parallel to each other, in which a molten sheet is supplied downward from above to a first nip part interposed between the touch molding roll and main molding roll, the sheet is compressed by the molding rolls, and the compressed sheet is windingly fed sequentially from the main molding roll to the finish molding rolls, thereby molding a sheet having a specific thickness. The apparatus further includes a rear-stage side rail for guiding the finish molding rolls in a horizontally movable manner and second to fourth hydraulic cylinders for horizontally moving the finish molding rolls to in such a manner that they can pressurize the sheet.


Patent
Japan Steel Works | Date: 2016-06-23

A method for producing an iron-based sintered alloy, which is used in sliding components in pairs and has a composition including, in terms of percent by mass, Ti: 18.4 to 24.6%, Mo: 2.8 to 6.6%, C: 4.7 to 7.0%, Cr: 7.5 to 10.0%, Ni: 4.5 to 6.5%, Co: 1.5 to 4.5%, Al: 0.6 to 1.0%, the balance being Fe and unavoidable impurities, wherein the method is carried out such that the alloy has a structure in which hard particles are dispersed in an island form in a matrix and, while an area ratio thereof is kept constant, a maximum circle equivalent diameter thereof is controlled to a predetermined value of 40 to 10 m.


Patent
Japan Steel Works | Date: 2016-07-13

This production method for fiber reinforcing members has: a step (1) in which a molten body of thermoplastic resin is formed in a lower mold, a mat-shaped material formed from a reinforcing fiber (B) is placed upon the molten body, an upper mold for pressurizing is closed on the lower mold, pressure is applied thereto and impregnation processing performed, then the resin-impregnated mat-shaped material is cooled and solidified, and a main body section formed from the fiber-reinforcing resin is formed; and a step (2) in which the upper mold for pressurizing is opened, an upper mold for injection molding is closed on the lower mold and an injection molding mold is formed, injection molding is then performed and an additional part is formed, and a fiber reinforcing member having the additional part combined with the main body section is molded.


Patent
Japan Steel Works and Kitami Institute of Technology | Date: 2016-03-23

A synthesis gas and nanocarbon production method has a lower hydrocarbon decomposition step for decomposing lower hydrocarbon to produce hydrogen and nanocarbon, a carbon dioxide reduction step for reacting a part of the nanocarbon produced with carbon dioxide to produce carbon monoxide, and a mixing step for mixing the hydrogen and carbon monoxide produced in a predetermined ratio, thereby nanocarbon and a synthesis gas having a desired gas ratio can be simultaneously produced easily.

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