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Koichi Sugimoto
Koichi Sugimoto, Nagano JP
| Patent application number | Description | Published |
|---|---|---|
| 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
| Patent application number | Description | Published |
|---|---|---|
| 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
| Patent application number | Description | Published |
|---|---|---|
| 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
| Patent application number | Description | Published |
|---|---|---|
| 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
| Patent application number | Description | Published |
|---|---|---|
| 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 |
Koichi Sugimoto, Kawasaki JP
| Patent application number | Description | Published |
|---|---|---|
| 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
| Patent application number | Description | Published |
|---|---|---|
| 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
| Patent application number | Description | Published |
|---|---|---|
| 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 |