Patents by Inventor Ryosuke Hata
Ryosuke Hata 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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Publication number: 20080121411Abstract: There is provided a superconductive cable capable of promoting a heat insulating function by a heat insulating tube and capable of maintaining the heat insulating function of the heat insulating tube at a minimum even when outside of the heat insulating tube is destructed in transportation. A heat insulating tube 2 contained with a cable core 3 of a superconductive cable 1 includes a first metal tube 21 and a second metal tube 22 and a third metal tube 23 arranged from an inner side in a diameter direction. An inner side heat insulating portion 5 is formed between the first metal tube 21 and the second metal tube 22, and an outer side heat insulating portion 7 is formed on an inner side of the third metal tube 23 and on an outer side of the inner side heat insulating portion 5. A heat insulating function of the heat insulating portion on an outer side is set to be lower than a heat insulating function of the heat insulating portion on an inner side thereof.Type: ApplicationFiled: October 31, 2005Publication date: May 29, 2008Inventors: Masayuki Hirose, Ryosuke Hata
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Publication number: 20070175804Abstract: A coagulation-sedimentation apparatus is designed to enable the apparatus to treat water at a higher rate. The coagulation-sedimentation apparatus includes a separation tank body 60 divided into an upper chamber 61 and a lower chamber 62 by a partition member 64. The tank body has a raw water inlet pipe 66 that introduces raw water into the upper chamber, and a water distributing passage that introduces a part of the water from the upper chamber to the lower chamber. The upper chamber has a first treated water outlet 76, and the lower chamber has a second treated water outlet 78. The flow velocity of upward flow of the water toward the first treated water outlet 76 in the upper chamber and the flow velocity of upward flow of the water toward the second treated water outlet 78 in the lower chamber can be controlled so that flocs in the upward flows can settle.Type: ApplicationFiled: May 21, 2004Publication date: August 2, 2007Inventors: Sakae Kosanda, Ryosuke Hata, Hirotoshi Hinuma, Ken Suzuki, Tomoichi Fujihashi
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Patent number: 7132162Abstract: A method of manufacturing an oxide superconducting wire which can manufacture the longest possible wire by connecting relatively short wires with each other and is capable of suppressing reduction of a critical current resulting from influence by strain when the wires connected with each other are bent, an oxide superconducting wire, a superconducting coil and a superconducting apparatus are provided. According to the method of manufacturing an oxide superconducting wire by superposing end portions of two oxide superconducting wires with each other thereby bonding the end portions and connecting the oxide superconducting wires with each other, a junction formed by superposing the end portions with each other is so worked as to reduce the quantity of strain on an end of the junction when the two oxide superconducting wires and connected with each other are bent.Type: GrantFiled: December 6, 2004Date of Patent: November 7, 2006Assignee: Sumitomo Electric Industries, Ltd.Inventors: Naoki Ayai, Ryosuke Hata, Hiromi Takei, Kazuhiko Hayashi, Takeshi Hikata
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Publication number: 20060228548Abstract: A method of manufacturing an oxide superconducting wire which can manufacture the longest possible wire by connecting relatively short wires with each other and is capable of suppressing reduction of a critical current resulting from influence by strain when the wires connected with each other are bent, an oxide superconducting wire, a superconducting coil and a superconducting apparatus are provided. According to the method of manufacturing an oxide superconducting wire by superposing end portions of two oxide superconducting wires with each other thereby bonding the end portions and connecting the oxide superconducting wires with each other, a junction formed by superposing the end portions with each other is so worked as to reduce the quantity of strain on an end of the junction when the two oxide superconducting wires and connected with each other are bent.Type: ApplicationFiled: June 9, 2006Publication date: October 12, 2006Inventors: Naoki Ayai, Ryosuke Hata, Hiromi Takei, Kazuhiko Hayashi, Takeshi Hikata
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Publication number: 20060057381Abstract: A method of manufacturing an oxide superconducting wire which can manufacture the longest possible wire by connecting relatively short wires with each other and is capable of suppressing reduction of a critical current resulting from influence by strain when the wires connected with each other are bent, an oxide superconducting wire, a superconducting coil and a superconducting apparatus are provided. According to the method of manufacturing an oxide superconducting wire by superposing end portions of two oxide superconducting wires with each other thereby bonding the end portions and connecting the oxide superconducting wires with each other, a junction formed by superposing the end portions with each other is so worked as to reduce the quantity of strain on an end of the junction when the two oxide superconducting wires and connected with each other are bent.Type: ApplicationFiled: December 6, 2004Publication date: March 16, 2006Inventors: Naoki Ayai, Ryosuke Hata, Hiromi Takei, Kazuhiko Hayashi, Takeshi Hikata
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Publication number: 20050016633Abstract: The method of manufacturing soft magnetic articles comprises a step of preparing a melt solution containing soft magnetic materials and a step of forming soft magnetic particles from the melt solution in a magnetic field by an atomization rapid solidification method.Type: ApplicationFiled: July 20, 2004Publication date: January 27, 2005Inventors: Hirokazu Kugai, Haruhisa Toyoda, Naoto Igarashi, Kazuhiro Hirose, Takao Nishioka, Akihiko Ikegaya, Ryosuke Hata, Hitoshi Oyama, Kenichi Sato, Kazuhiko Hayashi, Masayuki Hirose, koji Muranaka
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Patent number: 6844064Abstract: A method of manufacturing an oxide superconducting wire which can manufacture the longest possible wire by connecting relatively short wires with each other and is capable of suppressing reduction of a critical current resulting from influence by strain when the wires connected with each other are bent, an oxide superconducting wire, a superconducting coil and a superconducting apparatus are provided. According to the method of manufacturing an oxide superconducting wire by superposing end portions of two oxide superconducting wires (1, 2) with each other thereby bonding the end portions and connecting the oxide superconducting wires with each other, a junction (L) formed by superposing the end portions with each other is so worked as to reduce the quantity of strain on an end of the junction (L) when the two oxide superconducting wires (1) and (2) connected with each other are bent.Type: GrantFiled: November 1, 2000Date of Patent: January 18, 2005Assignee: Sumitomo Electric Industries, Ltd.Inventors: Naoki Ayai, Ryosuke Hata, Hiromi Takei, Kazuhiko Hayashi, Takeshi Hikata
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Publication number: 20040074845Abstract: The present invention relates to a technology which can efficiently concentrate a suspension liquid which needs to be concentrated in sewage treatment plants or various waste water treatment plants, particularly sludge or the like which contains a large amount of odor components which will adversely be decayed and is hard to concentrate. The present invention can prevent odor substances from being produced in a concentration process, and can remarkably reduce the amount of odor components, carbonic acid, and the like contained in concentrated sludge or a lower separated liquid. Specifically, in a process of concentrating or dewatering residual evaporated substances in a liquid, when sludge is held under a reduced pressure of 5 to 70 kPa for less than 15 minutes, a portion of gas components dissolved in the liquid is changed into gaseous phase, and activation of microorganisms in the liquid is restricted.Type: ApplicationFiled: September 11, 2003Publication date: April 22, 2004Inventors: Takao Hagino, Ryosuke Hata, Yoshiharu Iriuchijima, Hideki Yoshida
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Patent number: 6713437Abstract: The method of preparing an oxide superconducting wire comprises steps of preparing a wire by coating raw material powder for a Bi—Pb—Sr—Ca—Cu—O based oxide superconductor including a 2223 phase with a metal and heat treating the wire in a pressurized atmosphere containing oxygen in a prescribed partial pressure, and the total pressure of the pressurized atmosphere is at least 0.5 MPa. The pressure heat treatment apparatus comprises a pressure furnace storing and heat treating a target in a pressurized atmosphere, a pressure regulator for measuring the total pressure in the pressure furnace, an oxygen concentration meter for measuring the oxygen concentration in the pressure furnace and a controller for controlling the oxygen partial pressure in the pressure furnace in response to the total pressure measured by the pressure regulator and the oxygen concentration measured by the oxygen concentration meter.Type: GrantFiled: October 25, 2002Date of Patent: March 30, 2004Assignee: Sumitomo Electric Industries, Ltd.Inventors: Shinichi Kobayashi, Tetsuyuki Kaneko, Ryosuke Hata
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Patent number: 6632776Abstract: The method of preparing an oxide superconducting wire comprises steps of preparing a wire by coating raw material powder for a Bi—Pb—Sr—Ca—Cu—O based oxide superconductor including a 2223 phase with a metal and heat treating the wire in a pressurized atmosphere containing oxygen in a prescribed partial pressure, and the total pressure of the pressurized atmosphere is at least 0.5 MPa. The pressure heat treatment apparatus comprises a pressure furnace storing and heat treating a target in a pressurized atmosphere, a pressure regulator for measuring the total pressure in the pressure furnace, an oxygen concentration meter for measuring the oxygen concentration in the pressure furnace and a controller for controlling the oxygen partial pressure in the pressure furnace in response to the total pressure measured by the pressure regulator and the oxygen concentration measured by the oxygen concentration meter.Type: GrantFiled: July 13, 2001Date of Patent: October 14, 2003Assignee: Sumitomo Electric Industries Ltd.Inventors: Shinichi Kobayashi, Tetsuyuki Kaneko, Ryosuke Hata
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Publication number: 20030059734Abstract: The method of preparing an oxide superconducting wire comprises steps of preparing a wire by coating raw material powder for a Bi—Pb—Sr—Ca—Cu—O based oxide superconductor including a 2223 phase with a metal and heat treating the wire in a pressurized atmosphere containing oxygen in a prescribed partial pressure, and the total pressure of the pressurized atmosphere is at least 0.5 MPa. The pressure heat treatment apparatus comprises a pressure furnace storing and heat treating a target in a pressurized atmosphere, a pressure regulator for measuring the total pressure in the pressure furnace, an oxygen concentration meter for measuring the oxygen concentration in the pressure furnace and a controller for controlling the oxygen partial pressure in the pressure furnace in response to the total pressure measured by the pressure regulator and the oxygen concentration measured by the oxygen concentration meter.Type: ApplicationFiled: October 25, 2002Publication date: March 27, 2003Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Shinichi Kobayashi, Tetsuyuki Kaneko, Ryosuke Hata
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Patent number: 6399878Abstract: A cable and cable system is provided having a conductor and an insulation layer on an outer circumference of a conductor. The insulation layer is impregnated with a medium-viscosity insulating oil that has a viscosity of 10 centistokes (cst) to less than 500 cst at 60° C. The insulation layer includes an insulating tape that may be one or a combination of composite tape having a polyolefin resin film laminated with a kraft paper on both its sides and an insulating tape including a polyolefin resin film. The cable includes a metal sheath provided on an outer circumference of the insulation layer, and a reinforcing layer formed on an outer circumference of the metal sheath. The reinforcing layer reinforces the metal sheath by absorbing hoop stress exerted on the metal sheath. The cable system includes a submarine-portion cable and a land-portion cable, an oil stop joint box, and an oil feeding tank.Type: GrantFiled: February 3, 1999Date of Patent: June 4, 2002Assignee: Sumitomo Electric Industries, Ltd.Inventors: Mamoru Kondo, Ryosuke Hata, Hiroshi Takigawa, Jun Yorita, Takahiro Horikawa, Yuichi Ashibe, Morihiro Seki
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Publication number: 20020022576Abstract: The method of preparing an oxide superconducting wire comprises steps of preparing a wire by coating raw material powder for a Bi—Pb—Sr—Ca—Cu—O based oxide superconductor including a 2223 phase with a metal and heat treating the wire in a pressurized atmosphere containing oxygen in a prescribed partial pressure, and the total pressure of the pressurized atmosphere is at least 0.5 MPa. The pressure heat treatment apparatus comprises a pressure furnace storing and heat treating a target in a pressurized atmosphere, a pressure regulator for measuring the total pressure in the pressure furnace, an oxygen concentration meter for measuring the oxygen concentration in the pressure furnace and a controller for controlling the oxygen partial pressure in the pressure furnace in response to the total pressure measured by the pressure regulator and the oxygen concentration measured by the oxygen concentration meter.Type: ApplicationFiled: July 13, 2001Publication date: February 21, 2002Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Shinichi Kobayashi, Tetsuyuki Kaneko, Ryosuke Hata
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Publication number: 20010042635Abstract: A solid cable provided with an insulation layer on the outer circumference of a conductor, and impregnated with insulating oil in this insulation layer. Medium-viscosity insulating oil the viscosity of which is between not less than 10 cst and less than 500 cst at 60° C. is used as the insulating oil.Type: ApplicationFiled: February 3, 1999Publication date: November 22, 2001Inventors: MAMORU KONDO, RYOSUKE HATA, HIROSHI TAKIGAWA, JUN YORITA, TAKAHIRO HORIKAWA, YUICHI ASHIBE, MORIHIRO SEKI
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Patent number: 6244106Abstract: The underground-laying depth of an electric power cable is obtained on the basis of temperature data of the electric power cable laid underground, ambient temperature data of a place where the electric power cable is laid underground, calorific power data of the electric power cable, thermal resistivity of soil where the electric power cable is laid underground, and radiation thermal resistivity of the surface of the electric power cable. The ambient temperature means the temperature of a place which is not influenced by the heat of the electric power cable.Type: GrantFiled: August 22, 1997Date of Patent: June 12, 2001Assignee: Sumitomo Electric Industries, Ltd.Inventors: Yuji Nakura, Ryosuke Hata, Masayoshi Yamaguchi
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Patent number: 6207261Abstract: Disclosed is an electrical insulating laminated paper prepared by a process which comprises the steps of melt-extruding a polyolefin resin as a binder onto one or two sheets of a kraft insulating paper by means of a extruder to obtain a laminated paper, and calendering or supercalendering the laminated paper so that the total thickness thereof is from 30 to 200 &mgr;m and the proportion of a polymer comprising the polyolefin resin is from 40 to 90%. The laminated paper is excellent in dielectric properties, dielectric strength, and mechanical properties such as adhesive strength.Type: GrantFiled: November 18, 1997Date of Patent: March 27, 2001Assignees: Tomoegawa Paper Co., Sumitomo Electric Industries, Ltd.Inventors: Hidemitsu Kuwabara, Katsuhiko Katayama, Toru Tsujioka, Ryosuke Hata, Hiroshi Takigawa, Jun Yorita
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Patent number: 6201191Abstract: A solid DC cable is made of a conductor having multilayered insulating layer around the outer circumference of the conductor.Type: GrantFiled: April 29, 1998Date of Patent: March 13, 2001Assignee: Sumitomo Electric Industries, Ltd.Inventors: Jun Yorita, Ryosuke Hata, Hiroshi Takigawa
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Patent number: 5586210Abstract: An apparatus for connecting metal tubes covering optical fiber cables includes at least two clamp units 10, 10' for holding a metal sleeve (C5) and two metal tubes (C2, C2') covering two optical fiber cables (C, C') in close position. A laser welding head is placed between two adjacent clamp units. Each clamp unit has a gear (22) as a rotation body to be driven by a drive gear, a clamp device (28, 33, 34) for clamping the metal tube covered optical fiber cables which are introduced in inserting holes (31) where the metal tube covered optical fiber cables are inserted. The clamp device is supported by the rotation body (22) so as to be movable together with the rotation body. The rotation body and the clamp device each are provided with a radially extending selectively open or blocked extraction path (36, 22') to remove, in a radial direction, the metal tube optical fiber cable which has been connected by the apparatus.Type: GrantFiled: August 25, 1995Date of Patent: December 17, 1996Assignees: NKK Corporation, Sumitomo Electric Industries, Inc.Inventors: Yasunori Yoshie, Saburou Ishiro, Ryosuke Hata, Takeshi Nakamura
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Patent number: 5481070Abstract: A DC OF cable has its main insulation composed of a composite insulation tape comprising a low dielectric loss film and kraft paper (PPLP). 1-10 sheets of kraft paper are wound on the PPLP main insulation as a layer on the inside and/or the outside thereof.Type: GrantFiled: February 25, 1994Date of Patent: January 2, 1996Assignee: Sumitomo Electric Industries, Ltd.Inventors: Masayuki Hirose, Ryosuke Hata, Yoshiteru Nakaura
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Patent number: 5333230Abstract: An optical-fiber incorporated longer-sized subaqueous unit comprises optical fiber units arranged inside or outside a plastic sheath provided on the periphery of the core body of the longer-sized subaqueous unit such as power cable core or water supply tube. Each optical fiber unit includes an optical fiber accommodated in a metal pipe having on its periphery a coating layer made of plastic material with a melting point higher than that of the material of the plastic sheath, and armoring iron wire bundles are further provided outside the plastic sheath on the periphery of the core body, thereby preventing any buckling in the optical fiber units.Type: GrantFiled: September 27, 1993Date of Patent: July 26, 1994Assignee: Sumitomo Electric Industries, Ltd.Inventors: Ryosuke Hata, Masayuki Hirose, Toshiyuki Amagai, deceased, Masayoshi Yamaguchi, Hiroyuki Kimura