Patents by Inventor Hiromu Shiota
Hiromu Shiota 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: 11232892Abstract: A coil of an embodiment is formed by winding a winding conductor in which a conductive conductor is molded by a resin, wherein the winding conductor has the resin filled to a surface of the conductor without leaving any spaces.Type: GrantFiled: August 31, 2018Date of Patent: January 25, 2022Assignee: TOSHIBA INDUSTRIAL PRODUCTS AND SYSTEMS CORP.Inventors: Hiromu Shiota, Eiji Shimomura, Keishi Ito, Hiroshi Goto, Teruhiko Maeda, Yuusuke Shima
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Publication number: 20210391111Abstract: In a stacked core (1, 21) for a stationary induction apparatus according to an embodiment, joint surfaces where yoke portions (2, 3, 12, 22, 23) and leg portions (4, 5, 6, 11, 24, 25, 26) are joined have protrusions (8, 13) formed from a plurality of magnetic members (7), and recesses (9, 14) formed from a plurality of magnetic members alternately, and the yoke portions and the leg portions are configured to be butted in such a form that the protrusions and the recesses mesh with each other, sheet-like magnetic insulators (10, 15) are each disposed in a butt-joint portion between the protrusions and the recesses in such a form as to bend in a bellows shape along a butt line, and an air gap is provided, and in a relationship between the number of the stacked magnetic members forming each of the protrusions and the number of the stacked magnetic members forming each of the recesses, the number of the stacked magnetic members forming each of the protrusions is made smaller than the number of the stacked magneticType: ApplicationFiled: November 1, 2018Publication date: December 16, 2021Applicant: Toshiba Industrial Products and Systems Corp.Inventors: Yuusuke SHIMA, Hiromu SHIOTA
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Patent number: 10935414Abstract: A liquid level indicating device includes a moving member which is arranged in a liquid tank storing a cooling liquid and moves vertically in conjunction with variation in a liquid level of the cooling liquid, a string member having one end portion connected to the moving member, the string member being configured to be bendable and non-extendable in a longitudinal direction, an indicator connected to the other end portion of the string member and which indicates a height position of the moving member as a remaining amount of the cooling liquid by operating in conjunction with movement of the moving member through the string member, and a tube member which is configured to be bendable and non-extendable in the longitudinal direction, has the string member passed therethrough, and connects the liquid tank and the indicator.Type: GrantFiled: December 21, 2018Date of Patent: March 2, 2021Assignee: TOSHIBA INDUSTRIAL PRODUCTS AND SYSTEMS CORPInventors: Hiromu Shiota, Shota Ikeda, Midori Yamashita, Yosuke Takai, Kazuaki Ito
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Patent number: 10381151Abstract: The coupling coil structure, which is provided with a plurality of primary coils formed by winding a conductor wire and a plurality of secondary coils provided so as to generate mutual inductance with the plurality of primary coils and in which, among the plurality of primary coils, one primary coil is tapped at an intermediate portion thereof by another primary coil at right angles, is characterized in that, among the plurality of secondary coils, a secondary coil in mutual inductance with the one primary coil is constituted into a coupling coil by one conductor having a width at least the size in the axial direction of the primary coil.Type: GrantFiled: March 29, 2016Date of Patent: August 13, 2019Assignee: TOSHIBA INDUSTRIAL PRODUCTS AND SYSTEMS CORP.Inventor: Hiromu Shiota
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Publication number: 20190120683Abstract: A liquid level indicating device includes a moving member which is arranged in a liquid tank storing a cooling liquid and moves vertically in conjunction with variation in a liquid level of the cooling liquid, a string member having one end portion connected to the moving member, the string member being configured to be bendable and non-extendable in a longitudinal direction, an indicator connected to the other end portion of the string member and which indicates a height position of the moving member as a remaining amount of the cooling liquid by operating in conjunction with movement of the moving member through the string member, and a tube member which is configured to be bendable and non-extendable in the longitudinal direction, has the string member passed therethrough, and connects the liquid tank and the indicator.Type: ApplicationFiled: December 21, 2018Publication date: April 25, 2019Applicant: TOSHIBA INDUSTRIAL PRODUCTS AND SYSTEMS CORPInventors: Hiromu SHIOTA, Shota IKEDA, Midori YAMASHITA, Yosuke TAKAI, Kazuaki ITO
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Patent number: 10192669Abstract: A vector-magnetic-property-controlling material according to the present embodiment is subjected to a scratching process in two directions that intersect on the surface of a steel material. An iron core according to the present embodiment is configured from an oriented magnetic steel material which has been subjected to a scratching process in two directions that intersect on the surface thereof.Type: GrantFiled: November 21, 2014Date of Patent: January 29, 2019Assignees: TOSHIBA INDUSTRIAL PRODUCTS & SYSTEMS CORPORATION, NATIONAL UNIVERSITY CORPORATION OITA UNIVERSITYInventors: Masato Enokizono, Hiromu Shiota, Eiji Shimomura, Tsuyoshi Masuda
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Publication number: 20190019606Abstract: A coil of an embodiment is formed by winding a winding conductor in which a conductive conductor is molded by a resin, wherein the winding conductor has the resin filled to a surface of the conductor without leaving any spaces.Type: ApplicationFiled: August 31, 2018Publication date: January 17, 2019Applicant: TOSHIBA INDUSTRIAL PRODUCTS AND SERVICES CORP.Inventors: Hiromu Shiota, Eiji Shimomura, Keishi Ito, Hiroshi Goto, Teruhiko Maeda, Yuusuke Shima
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Patent number: 10026541Abstract: A molded stationary induction apparatus is provided with: a winding the surface of which is covered with resin or an insulating material containing resin; a closed vessel in which the winding is housed and air having pressure exceeding atmospheric pressure is sealed; and a heat exchanger which cools the air in the closed vessel.Type: GrantFiled: February 27, 2015Date of Patent: July 17, 2018Assignees: TOSHIBA INDUSTRIAL PRODUCTS AND SYSTEMS CORPORATION, Kabushiki Kaisha ToshibaInventors: Hiromu Shiota, Tetsuo Nakamae, Yuusuke Shima, Teruhiko Maeda, Masaharu Kubota
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Publication number: 20180182541Abstract: The present embodiment provides a wound-core production method for winding and laminating a plurality of pieces of core material which has at least one cut in each winding and thereby producing a wound core having a rectangular aperture in a central part, the wound-core production method comprising laminating the plurality of pieces of the cut core material while winding the core material into a shape of a rectangular frame using a winding device.Type: ApplicationFiled: February 9, 2016Publication date: June 28, 2018Applicant: Toshiba Industrial Products and Systems Corp.Inventors: HIROMU SHIOTA, YOSHINORI YAMAZAKI, TSUYOSHI MASUDA, EIJI SHIMOMURA, YUJI ISHIKAWA
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Publication number: 20170278617Abstract: A vector-magnetic-property-controlling material according to the present embodiment is subjected to a scratching process in two directions that intersect on the surface of a steel material. An iron core according to the present embodiment is configured from an oriented magnetic steel material which has been subjected to a scratching process in two directions that intersect on the surface thereof.Type: ApplicationFiled: November 21, 2014Publication date: September 28, 2017Inventors: MASATO ENOKIZONO, HIROMU SHIOTA, EIJI SHIMOMURA, TSUYOSHI MASUDA
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Publication number: 20170186530Abstract: A molded stationary induction apparatus is provided with: a winding the surface of which is covered with resin or an insulating material containing resin; a closed vessel in which the winding is housed and air having pressure exceeding atmospheric pressure is sealed; and a heat exchanger which cools the air in the closed vessel.Type: ApplicationFiled: February 27, 2015Publication date: June 29, 2017Applicants: TOSHIBA INDUSTRIAL PRODUCTIONS AND SYSTEMS CORPORATION, KABUSHIKI KAISHA TOSHIBAInventors: Hiromu SHIOTA, Tetsuo NAKAMAE, Yuusuke SHIMA, Teruhiko MAEDA, Masaharu KUBOTA
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Publication number: 20170162313Abstract: A wound iron core according to an embodiment of the present invention is provided with an iron core main body part around which a plurality of iron core materials are wound, and a window part formed at the center of the iron core main body part. The iron core materials each have a cut part at least at one location per winding. The cut parts are disposed so as to be dispersed in the periphery of the window part.Type: ApplicationFiled: May 11, 2015Publication date: June 8, 2017Applicant: TOSHIBA INDUSTRIAL PRODUCTS & SYSTEMS CORPORATIONInventors: Hiromu SHIOTA, Tsuyoshi MASUDA, Yoshinori YAMAZAKI, Eiji SHIMOMURA
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Publication number: 20160336100Abstract: A wound core is provided with plural wound core materials each having at least one cut portion for every one winding thereof. The wound core is provided with a rectangular window portion at the center thereof. A space factor of the core materials at each of corner portions is less than a space factor of the core materials at each of side portions.Type: ApplicationFiled: July 27, 2016Publication date: November 17, 2016Applicant: TOSHIBA INDUSTRIAL PRODUCTS & SYSTEMS CORPORATIONInventors: Hiromu SHIOTA, Tsuyoshi MASUDA, Yoshinori YAMAZAKI, Takashi IKEDA
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Publication number: 20160211070Abstract: The coupling coil structure, which is provided with a plurality of primary coils formed by winding a conductor wire and a plurality of secondary coils provided so as to generate mutual inductance with the plurality of primary coils and in which, among the plurality of primary coils, one primary coil is tapped at an intermediate portion thereof by another primary coil at right angles, is characterized in that, among the plurality of secondary coils, a secondary coil in mutual inductance with the one primary coil is constituted into a coupling coil by one conductor having a width at least the size in the axial direction of the primary coil.Type: ApplicationFiled: March 29, 2016Publication date: July 21, 2016Inventor: Hiromu SHIOTA
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Patent number: 6208230Abstract: A transformer for a cycloconverter includes three single-phase transformers connected into a three-phase configuration. Each of the single-phase transformers includes a two-legged core, primary windings wound on at least one of legs of the two-legged core, and twelve secondary windings wound on at least one of the legs of the two-legged core. The secondary windings are connected to positive group converters and negative group converters of a three-phase output circulating current type cycloconverter composed of three single-phase output circulating current type cycloconverters connected in a three-phase configuration. Each of the single-phase output circulating current type cycloconverters includes two positive group converters and two negative group converters arranged in a twelve-pulse bridge configuration.Type: GrantFiled: October 26, 1999Date of Patent: March 27, 2001Assignee: Kabushiki Kaisha ToshibaInventor: Hiromu Shiota
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Patent number: 5331303Abstract: A power transformer for cycloconverters comprises an iron core having three legs, nine positive group windings, nine negative group windings, and nine power supply windings. Three of the positive group windings, three of the negative group windings and three of the power supply windings are wound on each leg of the iron core. In application to the cycloconverters, three positive and negative group windings are allotted to each of three converters of the cycloconverter so that the three-phase AC voltages are applied to the three converters respectively. The three power supply windings are allotted to each pair of positive and negative group windings so that a winding circuit impedance becomes equal between the positive and negative group windings. These windings are arranged into a single transformer in which the windings are magnetically connected together by one three-leg core.Type: GrantFiled: April 21, 1992Date of Patent: July 19, 1994Assignee: Kabushiki Kaisha ToshibaInventor: Hiromu Shiota