Koichi Sugimoto
Koichi Sugimoto, Nagano JP
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20080251160 | High-Strength Cold-Rolled Steel Sheet Excellent in Uniform Elongation and Method for Manufacturing Same - A high-strength cold-rolled steel sheet excellent in uniform elongation, including in percent by mass: | 10-16-2008 |
20080251161 | High Strength Cold Rolled Steel Sheet and Plated Steel Sheet Excellent in the Balance of Strength and Workability - A high-strength cold-rolled steel sheet exhibiting an excellent strength-workability balance, including in percent by mass: | 10-16-2008 |
20090238713 | ULTRAHIGH-STRENGTH STEEL SHEET - The invention relates to an ultrahigh-strength thin steel sheet excellent in the hydrogen embrittlement resistance, the steel sheet including, by weight %, 0.10 to 0.60% of C, 1.0 to 3.0% of Si, 1.0 to 3.5% of Mn, 0.15% or less of P, 0.02% or less of S, 1.5% or less of Al, 0.003 to 2.0% of Cr, and a balance including iron and inevitable impurities; in which grains of residual austenite have an average axis ratio (major axis/minor axis) of 5 or more, the grains of the residual austenite have an average minor axis length of 1 μm or less, and the grains of the residual austenite have a nearest-neighbor distance between the grains of 1 μm or less. | 09-24-2009 |
20100172786 | HIGH-STRENGTH STEEL SHEET HAVING EXCELLENT ELONGATION, STRETCH FLANGEABILITY AND WELDABILITY - The present invention provides a high-strength steel sheet which has a 980 MPa class tensile strength as well as has excellent elongation, stretch flangeability and weldability, and also has excellent anti-delayed fraction property. The high-strength steel sheet comprises steel satisfying: C: 0.12 to 0.25%, Si: 1.0 to 3.0%, Mn: 1.5 to 3.0%, P: 0.15% or less, S: 0.02% or less, Al: 0.4% or less, and comprising the remnant made from iron and unavoidable impurities, wherein a ratio of the contents of Si and C (Si/C) is within the range from 7 to 14 in terms of a mass ratio, and a microstructure in a longitudinal section comprises, by an occupancy ratio based on the entire structure, 1) bainitic ferrite: 50% or more, 2) lath-type residual austenite: 3% or more, and 3) block-type residual austenite: 1% or more to ½×occupancy ratio of lath-type residual austenite, and 4) average size of block-type second phase is 10 μm or less. | 07-08-2010 |
20100221138 | HIGH-STRENGTH COMPOSITE STEEL SHEET HAVING EXCELLENT MOLDABILITY AND DELAYED FRACTURE RESISTANCE - The present invention provides a high-strength composite steel sheet which has a tensile strength of 980 MPa class as well as excellent and excellent anti-delayed fraction property, and also has excellent spot-weldability. The high-strength composite steel sheet comprises a steel satisfying: C: 0.10 to 0.25% (% by mass in case of a chemical component, the same shall apply hereinafter), Si: 1.0 to 3.0%, Mn: 1.5 to 3.0%, P: 0.15% or less, S: 0.02% or less, Al: 0.4% or less, and comprising the remnant made from iron and unavoidable impurities; the contents of Si, Al, Mn and Cr satisfy the relationship of “(Si+Al)/Mn or (Si+Al)/(Mn+Cr)=0.74 to 1.26”; and microstructure is specified. | 09-02-2010 |
Koichi Sugimoto, Nagasaki JP
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20100129209 | Centrifugal Compressor - There is provided a centrifugal compressor having a diffuser structure in which airflow is unlikely to separate from a hub side wall surface on a hub side wall surface downstream side within a diffuser passage. In a centrifugal compressor provided with a diffuser passage | 05-27-2010 |
20100166539 | Centrifugal compressor - A centrifugal compressor having a wide operating range, being economically efficient and high reliability in terms of a stable operation is provided. A centrifugal compressor including a partition wall | 07-01-2010 |
Koichi Sugimoto, Nagasaki-Shi JP
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20100143095 | RADIAL COMPRESSOR - A radial compressor is capable of preventing the occurrence of separation caused by a flow which goes beyond the front end of a blade and turns onto a negative pressure plane from a pressure plane, thereby reducing a surging flow rate to a smaller flow rate. The radial compressor includes an impeller which is rotatively driven, axially introduces air taken in through an air inlet passage formed in a housing, pressurizes the introduced air, and discharges the pressurized air in a radial direction, wherein an annular concave groove is formed in a peripheral wall of the air inlet passage of the housing, a rear end portion of an opening of the annular concave groove, which rear end portion meets the housing peripheral wall, is provided in the vicinity of a blade front end surface of the impeller, and the rear end portion of the opening of the annular concave groove is formed such that an axial projecting amount X thereof relative to the blade front end surface of the impeller is set to −1T≦X≦1.5T (where T denotes the thickness of the distal portion of a blade). | 06-10-2010 |
Koichi Sugimoto, Ueda-Shi JP
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20100092332 | HIGH-STRENGTH COLD ROLLED STEEL SHEET HAVING EXCELLENT FORMABILITY, AND PLATED STEEL SHEET - To provide a high-strength cold rolled steel sheet that has well-balanced tensile strength and elongation as well as well-balanced tensile strength and stretch-flangeability, and a plated steel sheet manufactured by plating the steel sheet. | 04-15-2010 |
Koichi Sugimoto, Tokyo JP
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20100009072 | CODE DISK WITH A PLURALITY OF TRACKS HAVING DIFFERENT PATTERNS - A code disk for a high-resolution encoder that can detect an absolute position and a method for manufacturing a mold to produce the code disk are provided. The code disk is formed by using transparent substrate. The code disk includes a plurality of tracks provided on the transparent substrate and an area provided between the plurality of tracks. Each surface of the plurality of tracks has a different pattern. A level of the area is different from that of the each surface of the plurality of tracks. The method for manufacturing the mold includes steps of processing a plurality of tracks with a flat surface on material; processing an area with a level different from that of each surface, between the plurality of tracks; forming different patterns on the each surface; plating the first material; and peeling plating from the first material to obtain a mold. | 01-14-2010 |
20120328444 | IMPELLER OF CENTRIFUGAL COMPRESSOR - Interference of a leakage vortex flow generated at the tip end side of the full blade with the leading edge of the splitter blade is avoided and high pressure ratio and enhanced efficiency can be achieved. A throat of am impeller is formed so that a distance from a leading edge of a rear side full blade on the rear side of the rotation direction of the compressor to a front side full blade adjacent to the rear side full blade is minimized, and the leading edge of the splitter blade is placed in a fluid flow streaming along the flow passage between the mutually adjacent full blades, on the downstream side of a leakage vortex line formed to connect the middle location of the throat to the leading edge of the front side full blade. | 12-27-2012 |
20130094955 | CENTRIFUGAL COMPRESSOR DIFFUSER AND CENTRIFUGAL COMPRESSOR PROVIDED WITH THE SAME - A centrifugal compressor diffuser includes a shroud-side wall ( | 04-18-2013 |
Koichi Sugimoto, Kawasaki JP
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20090265917 | METHOD OF MANUFACTURING THIN FILM MAGNETIC HEAD - By the method of manufacturing a thin film magnetic head, a magnetic material having a suitable characteristic can be used for manufacturing a magnetic pole and corrosion of the magnetic pole can be prevented. The method comprises: a step of forming a multilayered magnetic pole; a step of forming a stopper layer on the magnetic pole; a step of forming an insulating layer on the stopper layer; a step of polishing the insulating layer, by chemical mechanical polishing process, until an upper face of the stopper layer is exposed; a step of removing the stopper layer, by dry etching process with a reactive gas, until an upper face of the magnetic head is exposed; a step of removing the upper face of the magnetic pole, by dry etching process with an inert gas, until reaching a prescribed depth; and a step of polishing the upper face of the magnetic pole, by chemical mechanical polishing process, until the upper face of the magnetic pole is flattened. | 10-29-2009 |
Koichi Sugimoto, Odawara JP
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20110204908 | SEMICONDUCTOR DEVICE - A semiconductor device is designed to facilitate analyzing a position and a cause of the failure of an integrated circuit adopting a polyphase clock. To this end, the semiconductor device is provided with an error detecting unit that detects that a problem of the operation occurs in the integrated circuit, a clock state holding unit that holds the information of phases in a predetermined term of a two- or more-phase clock and an output unit that outputs the information of the phases in the predetermined term of the two- or more-phase clock when the error detecting unit detects that the problem of the operation occurs in the integrated circuit. | 08-25-2011 |
Koichi Sugimoto, Yokohama JP
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20110211804 | VIDEO DISPLAY DEVICE - The present invention provides a video display device provided with a storage mechanism that reliably holds a recording medium (HDD) with the reduced number of components. A tray integrally stores an installed HDD built in the device and a cassette HDD attachable to and detachable from the device, and is mounted on a main chassis. An HDD stopper of a hook-like shape integrated with the tray presses an end part of the installed HDD to secure its storage position. An HDD holder integrated with the tray presses a side surface at an end part of the cassette HDD to prevent it from falling off the tray. Further, a regulating plate formed by cutting and raising the main chassis suppresses deformation of the HDD stopper, and an anti-falling plate prevents the installed HDD from falling off the tray. | 09-01-2011 |