Patents by Inventor Takashi Kurata
Takashi Kurata has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10716230Abstract: The first annular sealing material is filled and applied between a first sealing surface provided on an outer peripheral part of the case and a second sealing surface provided on an outer peripheral part of the cover, a second annular sealing material is filled and applied between a first fitting member provided at the opening of the sealed housing and a second fitting member provided at the outer periphery of the body of the connector housing, a terminal part sealing material is applied to a connection surface which is an inner surface of the wall for partitioning inside and outside of the connector housing and is connected to the circuit substrate, the case and the cover are fastened together by a fastening member, the hermetically sealed housing is provided with a sealable ventilation passage that communicates the inside of the hermetically sealed housing with outside air.Type: GrantFiled: May 10, 2019Date of Patent: July 14, 2020Assignee: Mitsubishi Electric CorporationInventors: Yusuke Matsuda, Koji Hashimoto, Yoshitake Nishiuma, Takashi Kurata
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Publication number: 20190380220Abstract: The first annular sealing material is filled and applied between a first sealing surface provided on an outer peripheral part of the case and a second sealing surface provided on an outer peripheral part of the cover, a second annular sealing material is filled and applied between a first fitting member provided at the opening of the sealed housing and a second fitting member provided at the outer periphery of the body of the connector housing, a terminal part sealing material is applied to a connection surface which is an inner surface of the wall for partitioning inside and outside of the connector housing and is connected to the circuit substrate, the case and the cover are fastened together by a fastening member, the hermetically sealed housing is provided with a sealable ventilation passage that communicates the inside of the hermetically sealed housing with outside air.Type: ApplicationFiled: May 10, 2019Publication date: December 12, 2019Applicant: Mitsubishi Electric CorporationInventors: Yusuke MATSUDA, Koji Hashimoto, Yoshitake Nishiuma, Takashi Kurata
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Patent number: 8959752Abstract: A transformer core manufacturing apparatus for manufacturing an annular transformer core having thin plates formed of magnetic materials laminated includes an uncoiler unit which allows a plurality of uncoilers each having a thin plate magnetic material coiled hoop-like to uncoil the magnetic material, a carrier unit for guiding a plurality of the magnetic materials uncoiled from the plurality of the uncoilers as a single group of magnetic body, a first alignment unit for aligning the carried group of the single magnetic body in a width direction, a cut-off unit for cutting the magnetic body aligned by the first alignment unit in a predetermined dimension, a laminating unit for laminating a plurality of the groups of the magnetic body cut by the cut-off unit, a second alignment unit for aligning the magnetic body laminated on the laminating unit, and a control unit for controlling operations of the above cited units.Type: GrantFiled: July 20, 2011Date of Patent: February 24, 2015Assignee: Hitachi Industrial Equipment Systems Co., Ltd.Inventors: Shunsuke Ikeda, Junichi Ishizuki, Takashi Kurata, Eisuke Maruyama
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Patent number: 8735781Abstract: A method and apparatus for controlling heating and cooling of a transfer unit in a precision hot press device configured to suppress overheating and supercooling, and of performing quick heating and cooling, wherein the method and apparatus compares an amount of energy given to the transfer unit or taken from the transfer unit by a heating unit or a cooling unit with an amount of energy observed to enter into or exit from the transfer unit before the temperature of the transfer unit reaches a target temperature, calculates an amount of surplus or supercooled energy from a difference between the two energy amounts, and heats or cools the transfer unit based on the amount of surplus or supercooled energy.Type: GrantFiled: January 21, 2010Date of Patent: May 27, 2014Assignee: Hitachi Industrial Equipment Systems Co., Ltd.Inventors: Daisuke Shimao, Takashi Kurata
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Publication number: 20130078330Abstract: A precision press device and a press load control method is provided for downsizing a vacuum chamber in press work in the vacuum chamber, shortening a time required to reach a vacuum and performing high accuracy pressure control. A pressure sensor is set up outside the chamber 16 and a cylinder chamber 17 is formed to allow a tubular plunger 7 to slide up and down. A negative pressure 22 in the chamber 16 attracts the pressurized section 2 and the pressurizing section 1, but by injecting an equivalent pressure 19 of a fluid into the cylinder chamber 17, pushing out the tubular plunger 7, the attractive forces are canceled out.Type: ApplicationFiled: September 15, 2012Publication date: March 28, 2013Applicant: Hitachi Industrial Equipment Systems Co., Ltd.Inventors: Daisuke Shimao, Katsuaki Inoue, Takashi Kurata
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Patent number: 8387526Abstract: The present invention provides a precision press device and a press load control method thereof for downsizing a vacuum chamber in press work in the vacuum chamber, shortening a time required to reach a vacuum and further performing high accuracy pressure control. To downsize a chamber 16, a pressure sensor is set up outside the chamber 16 and a cylinder chamber 17 is formed to allow a tubular plunger 7 to slide up and down using the tubular shape of the chamber 16. A negative pressure 22 in the chamber 16 attracts the pressurized section 2 and the pressurizing section 1 to each other, but by injecting an equivalent pressure 19 of a fluid into the cylinder chamber 17, pushing out the tubular plunger 7, the attractive forces are canceled out. It is possible to control the load on the substrate or the like transferred by the press stage with high accuracy.Type: GrantFiled: August 24, 2009Date of Patent: March 5, 2013Assignee: Hitachi Industrial Equipment Systems Co., Ltd.Inventors: Daisuke Shimao, Katsuaki Inoue, Takashi Kurata
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Patent number: 8375569Abstract: An apparatus for manufacturing a transformer core includes a drawing which draws magnetic sheet materials in parallel from winding bodies. A cutter cuts the sheet materials at predetermined positions substantially simultaneously to form sheets each with a different length. An overlapping unit forms a block-shaped laminate by laminating the cut magnetic sheet materials in length and forms a resultant laminate by laminating the formed block-shaped laminates. An annulation unit forms an annular structure of the resultant laminate so that the longer block-shaped laminate forms the outer annular portion and the shorter block-shaped laminate forms the inner annular portion. Both ends of the magnetic sheet materials are abutted or overlapped to locate the abutted or overlapped portions at annularly different positions between adjoining layers of the magnetic sheet materials. A control unit controls the drawing unit, cutter and overlapping unit.Type: GrantFiled: June 11, 2009Date of Patent: February 19, 2013Assignee: Hitachi Industrial Equipment Systems Co., Ltd.Inventors: Kazuyuki Fukui, Kenji Nakanoue, Takashi Kurata, Hisashi Koyama, Hidemasa Yamaguchi, Chikara Mizusawa
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Publication number: 20120047718Abstract: Transformer core manufacturing apparatus and method having magnetic thin plates aligned with high accuracy are provided for manufacturing the transformer core using the thin and lightweight magnetic plates.Type: ApplicationFiled: July 20, 2011Publication date: March 1, 2012Inventors: Shunsuke Ikeda, Junichi Ishizuki, Takashi Kurata, Eisuke Maruyama
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Patent number: 8017692Abstract: A resin composition for metal plating provides a molded article exhibiting excellent metal plating adhesion strength and chemical resistance, while having excellent productivity. A metal-plated molded article can also be made from such a resin composition. The resin composition for metal plating includes 50-90% by mass of Component (A) and 10-50% by mass of Component (B), the total of Component (A) and Component (B) being 100% by mass, wherein Component (A) is a polypropylene resin, and Component (B) is a rubber-reinforced vinyl resin obtained by polymerizing a vinyl monomer in the presence of a rubber-like polymer, or a mixture of the rubber-reinforced vinyl resin and a (co)polymer of the vinyl monomer. The composition may further include 0.5-30 parts by mass of a compatibilizer (C) per 100 parts by mass of the total of Component (A) and Component (B). Component (B) is preferably a non-diene rubber-reinforced resin.Type: GrantFiled: November 20, 2007Date of Patent: September 13, 2011Assignee: Techno Polymer Co., Ltd.Inventors: Hiroyoshi Kaito, Takashi Kurata, Toshiyuki Higashijima
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Publication number: 20110129682Abstract: A laser-sinterable resin powder, which retains properties of styrene resins such as impact resistance and low water absorption and shows sharp decrease of melt viscosity similarly to crystalline resins at a temperature not lower than the glass transition temperature can be made of a thermoplastic resin composition containing 10-80 mass % of a crystalline resin (A) with a melting point of 80-250° C. and 20-90 mass % of a styrene resin (B), and having a 50% average particle diameter of 10-100 ?m. The Component (A) is preferably a polyolefin resin. The Component (B) is preferably a rubber-reinforced styrene resin composition, wherein the rubber component is preferably an ethylene-?-olefin copolymer rubber and/or a hydrogenated product of a diene rubber. The laser-sinterable powder preferably has a melt flow rate of 5-500 g/10 min.Type: ApplicationFiled: August 5, 2008Publication date: June 2, 2011Applicant: TECHNO POLYMER CO., LTD.Inventors: Takashi Kurata, Fusamichi Kitada, Toshiki Niino, Shunsuke Oizumi
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Publication number: 20110018674Abstract: A technology for manufacturing a transformer core with laminated structure draws the magnetic sheet materials in parallel from plural winding bodies around which the magnetic sheet material is wound like hoop, cuts the materials at predetermined positions substantially simultaneously to form plural magnetic sheet materials each with a different length, forms a block-shaped laminate by laminating the plural magnetic sheet materials in the order of length, and further laminates the block-shaped laminates in the order of length.Type: ApplicationFiled: June 11, 2009Publication date: January 27, 2011Inventors: Kazuyuki Fukui, Kenji Nakanoue, Takashi Kurata, Hisashi Koyama, Hidemasa Yamaguchi, Chikara Mizusawa
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Patent number: 7876596Abstract: A novel nonvolatile memory element, which can be manufactured by a simple and high yield process by using an organic material and has a high on/off ratio, and a method for manufacturing such nonvolatile memory element. A switching layer (14) made of an electrical insulating radical polymer is provided between an anode layer (12) and a cathode layer (16). Further, a hole injection transport layer (13) is provided between the switching layer (14) and the anode layer (12), and an electron injection transport layer (15), between the switching layer (14) and the cathode layer (16). An intermediate layer is provided between the switching layer and the adjacent layer. The radical polymer is preferably nitroxide radical polymer. The switching layer (14), the hole injection transport layer (13) and the electron injection transport layer (15) are formed by being stacked by a wet process.Type: GrantFiled: November 4, 2005Date of Patent: January 25, 2011Assignee: Waseda UniversityInventors: Hiroyuki Nishide, Kenji Honda, Yasunori Yonekuta, Takashi Kurata, Shigemoto Abe
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Publication number: 20100307732Abstract: A method and apparatus for controlling heating and cooling of a transfer unit in a precision hot press device capable of suppressing overheating and supercooling, and of performing quick heating and cooling, wherein the method and apparatus compares an amount of energy (amount of heat) given to the transfer unit or taken from the transfer unit by a heating unit or a cooling unit with an amount of energy observed to enter into or exit from the transfer unit before the temperature of the transfer unit reaches a target temperature, calculates an amount of surplus or supercooled energy from a difference between the two energy mounts, and heats or cools the transfer unit based on the amount of surplus or supercooled energy.Type: ApplicationFiled: January 21, 2010Publication date: December 9, 2010Inventors: Daisuke SHIMAO, Takashi Kurata
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Publication number: 20100089255Abstract: The present invention provides a precision press device and a press load control method thereof for downsizing a vacuum chamber in press work in the vacuum chamber, shortening a time required to reach a vacuum and further performing high accuracy pressure control. To downsize a chamber 16, a pressure sensor is set up outside the chamber 16 and a cylinder chamber 17 is formed to allow a tubular plunger 7 to slide up and down using the tubular shape of the chamber 16. A negative pressure 22 in the chamber 16 attracts the pressurized section 2 and the pressurizing section 1 to each other, but by injecting an equivalent pressure 19 of a fluid into the cylinder chamber 17, pushing out the tubular plunger 7, the attractive forces are canceled out. It is possible to control the load on the substrate or the like transferred by the press stage with high accuracy.Type: ApplicationFiled: August 24, 2009Publication date: April 15, 2010Inventors: Daisuke Shimao, Katsuaki Inoue, Takashi Kurata
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Publication number: 20100068615Abstract: A resin composition for metal plating provides a molded article exhibiting excellent metal plating adhesion strength and chemical resistance, while having excellent productivity. A metal-plated molded article can also be made from such a resin composition. The resin composition for metal plating includes 50-90% by mass of Component (A) and 10-50% by mass of Component (B), the total of Component (A) and Component (B) being 100% by mass, wherein Component (A) is a polypropylene resin, and Component (B) is a rubber-reinforced vinyl resin obtained by polymerizing a vinyl monomer in the presence of a rubber-like polymer, or a mixture of the rubber-reinforced vinyl resin and a (co)polymer of the vinyl monomer. The composition may further include 0.5-30 parts by mass of a compatibilizer (C) per 100 parts by mass of the total of Component (A) and Component (B). Component (B) is preferably a non-diene rubber-reinforced resin.Type: ApplicationFiled: November 20, 2007Publication date: March 18, 2010Applicant: Techno Polymer Co., LtdInventors: Hiroyoshi Kaito, Takashi Kurata, Toshiyuki Higashijima
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Publication number: 20080259680Abstract: A novel nonvolatile memory element, which can be manufactured by a simple and high yield process by using an organic material and has a high on/off ratio, and a method for manufacturing such nonvolatile memory element. A switching layer (14) made of an electrical insulating radical polymer is provided between an anode layer (12) and a cathode layer (16). Further, a hole injection transport layer (13) is provided between the switching layer (14) and the anode layer (12), and an electron injection transport layer (15), between the switching layer (14) and the cathode layer (16). An intermediate layer is provided between the switching layer and the adjacent layer. The radical polymer is preferably nitroxide radical polymer. The switching layer (14), the hole injection transport layer (13) and the electron injection transport layer (15) are formed by being stacked by a wet process.Type: ApplicationFiled: November 4, 2005Publication date: October 23, 2008Applicant: Waseda UniversityInventors: Hiroyuki Nishide, Kenji Honda, Yasunori Yonekuta, Takashi Kurata, Shigemoto Abe
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Patent number: 6849689Abstract: Rubber-reinforced thermoplastic resins containing a copolymer resin (A1) obtained by polymerizing a vinyl monomer (b1) in the presence of an acrylic rubber-like polymer (a), or a mixture of copolymer resin (A1) and a (co)polymer (A2) of a vinyl monomer (b2). Acrylic rubber-like polymer (a) contains 50 to 98% by weight of acrylic rubber-like polymer particles (a1) which have a particle size of less than 350 nm and 2 to 50% by weight of acrylic rubber-like polymer particles (a2) which have a particle size of not less than 350 nm. The amount of the acrylic rubber-like polymer (a) is 5 to 80% by weight based on the rubber-reinforced thermoplastic resin.Type: GrantFiled: March 26, 2002Date of Patent: February 1, 2005Assignee: Techno Polymer Co., Ltd.Inventors: Gou Yamada, Hiromu Akatsuka, Takashi Kurata
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Publication number: 20020188066Abstract: The present invention relates to a rubber-reinforced thermoplastic resin comprising a copolymer resin (A1) obtained by polymerizing a vinyl monomer (b1) in the presence of an acrylic rubber-like polymer (a), or a mixture of said copolymer resin (A1) and a (co)polymer (A2) of a vinyl monomer (b2),Type: ApplicationFiled: March 26, 2002Publication date: December 12, 2002Inventors: Gou Yamada, Hiromu Akatsuka, Takashi Kurata
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Patent number: 6448342Abstract: The present invention relates to a transparent butadiene-based rubber-reinforced resin produced by graft-polymerizing monomer components (b) comprising as main components an aromatic vinyl compound, a vinyl cyanide compound and an acrylic or methacrylic acid ester in the presence of particles of a butadiene-based rubber (a), said butadiene-based rubber-reinforced resin comprising, when observed by an electron microscope, a rubber phase having an average particle size of 150 to 350 nm and containing particles having a particle size of less than 150 nm in an amount of not more than 30% by weight and particles having a particle size of more than 350 nm in an amount of not more than 30% by weight; and containing acetone solubles having an intrinsic viscosity [&eegr;] of 0.2 to 0.4 dl/g when measured at 30° C. in methyl ethyl ketone.Type: GrantFiled: April 18, 2001Date of Patent: September 10, 2002Assignee: Techno Polymer Co., Ltd.Inventors: Takashi Kurata, Shinobu Fukumura, Yoshio Nakanishi, Junichirou Nitta
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Patent number: 6337371Abstract: The present invention relates to a thermoplastic resin composition with excellent long-term heat-aging properties, comprising: (I) 10 to 45% by weight of a rubber-modified thermoplastic resin obtained by graft polymerizing at least one monomer selected from the group consisting of aromatic vinyl compounds, vinyl cyanide compounds and other vinyl monomers copolymerizable therewith in the presence of a rubber-like polymer; (II) 5 to 30% by weight of a thermoplastic resin obtained by copolymerizing the monomers comprising an aromatic vinyl compound, a vinyl cyanide compound and optionally other vinyl monomer copolymerizable therewith; and (III) 50 to 70% by weight of a polycarbonate resin, the content of the vinyl cyanide compound in the whole produced composition being 3 to 12% by weight.Type: GrantFiled: February 5, 2001Date of Patent: January 8, 2002Assignee: Techno Polymer Co., Ltd.Inventors: Takashi Kurata, Yukio Hosaka