Patents Assigned to National University Corporation, Tokyo University of Marine Science and Technology
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Patent number: 11502590Abstract: A radial-gap type superconducting synchronous machine 1 is prepared which includes a rotor 20 having, on its peripheral side, a convex magnetic pole 21 which includes, at its distal end part, bulk superconductors 30. When viewed in the direction of the rotational axis C1 of the rotor 20, the magnetic pole center side of the bulk superconductors 30 is disposed nearer to a stator 10 than the magnetic pole end side of the bulk superconductors 30. A ferromagnet 28 is disposed on the rotational axis C1 side of the bulk superconductors 30. A magnetizing apparatus 100 is disposed outside the bulk superconductors 30 in the radial direction of the rotor 20. Magnetization of the bulk superconductors 30 is performed by directing magnetic flux lines from the magnetizing apparatus 100 toward the bulk superconductors 30.Type: GrantFiled: February 10, 2020Date of Patent: November 15, 2022Assignee: National University Corporation Tokyo University Of Marine Science And TechnologyInventors: Mitsuru Izumi, Motohiro Miki
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Publication number: 20220022431Abstract: The transplant fish production method includes selecting a donor fish species, selecting first and second fish species which are a combination that could be sterile, producing a hybrid fish species of the selected first fish species and second fish species, and transplanting reproductive cells of the donor fish species into the produced hybrid fish species.Type: ApplicationFiled: March 1, 2021Publication date: January 27, 2022Applicants: National University Corporation Tokyo University of Marine Science and Technology, Nippon Suisan Kaisha, Ltd.Inventors: Goro YOSHIZAKI, Yutaka TAKEUCHI, Ryosuke YAZAWA, Wataru KAWAMURA
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Patent number: 11160849Abstract: Provided is a norovirus deactivator, including a lysozyme component that includes at least one kind selected from lysozyme and/or a salt thereof, and a denatured product thereof.Type: GrantFiled: June 10, 2019Date of Patent: November 2, 2021Assignees: NATIONAL UNIVERSITY CORPORATION TOKYO UNIVERSITY OF MARINE SCIENCE AND TECHNOLOGY, KEWPIE CORPORATIONInventors: Hajime Takahashi, Miki Sato, Takashi Miyashita, Ryo Sasahara
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Publication number: 20210032697Abstract: Disclosed is a method for determining the sex of yellowtails, the method comprising a step of identifying whether an amino acid residue at position 143 in polypeptide encoded by the HSD17B1 gene of yellowtails is a glutamic acid residue or a glycine residue; a nucleic acid molecule or a primer set which is for use in said method; or a kit comprising the same, for determining the sex of yellowtails. The method according to the present invention is useful in that the genetic sex of yellowtails can be accurately determined.Type: ApplicationFiled: February 18, 2019Publication date: February 4, 2021Applicant: National University Corporation Tokyo University of Marine Science and TechnologyInventors: Takashi SAKAMOTO, Masatoshi NAKAMOTO, Kiyoshi KIKUCHI, Takashi KOYAMA
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Patent number: 10594197Abstract: A radial-gap type superconducting synchronous machine 1 is prepared which includes a rotor 20 having, on its peripheral side, a convex magnetic pole 21 which includes, at its distal end part, bulk superconductors 30. When viewed in the direction of the rotational axis C1 of the rotor 20, the magnetic pole center side of the bulk superconductors 30 is disposed nearer to a stator 10 than the magnetic pole end side of the bulk superconductors 30. A ferromagnet 28 is disposed on the rotational axis C1 side of the bulk superconductors 30. A magnetizing apparatus 100 is disposed outside the bulk superconductors 30 in the radial direction of the rotor 20. Magnetization of the bulk superconductors 30 is performed by directing magnetic flux lines from the magnetizing apparatus 100 toward the bulk superconductors 30.Type: GrantFiled: March 25, 2015Date of Patent: March 17, 2020Assignee: National University Corporation Tokyo University of Marine Science and TechnologyInventors: Mitsuru Izumi, Motohiro Miki
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Patent number: 10536067Abstract: A rotary machine cools a cooling target inside a rotor rotatable around a rotational axis, includes a condenser section disposed outside the rotor and condenses a gas phase cooling medium into a liquid phase cooling medium; an evaporator section disposed inside the rotor, and evaporates the liquid phase cooling medium generated by condensation in the condenser section into the gas phase cooling medium, by heat exchange between the cooling target and the liquid phase cooling medium; and a coupling pipe flows the liquid phase cooling medium and the gas phase cooling medium between the evaporator section and the condenser section, wherein the coupling pipe has a pipe structure in which a liquid phase cooling medium passage flows the liquid phase cooling medium generated by the condensation in the condenser section and a gas phase cooling medium passage flows the gas phase cooling medium generated by evaporation in the evaporator section.Type: GrantFiled: August 2, 2016Date of Patent: January 14, 2020Assignees: KAWASAKI JUKOGYO KABUSHIKI KAISHA, NATIONAL UNIVERSITY CORPORATION TOKYO UNIVERSITY OF MARINE SCIENCE AND TECHNOLOGYInventors: Yohei Murase, Etsuya Yanase, Toshiyuki Yanamoto, Mitsuru Izumi, Motohiro Miki, Kota Yamaguchi
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Patent number: 10476365Abstract: Provided is a rotary machine capable of increasing cooling efficiency while preventing an increase in the weight and cost of a rotor even in a case where the diameter of the rotor is increased.Type: GrantFiled: August 2, 2016Date of Patent: November 12, 2019Assignees: KAWASAKI JUKOGYO KABUSHIKI KAISHA, NATIONAL UNIVERSITY CORPORATION TOKYO UNIVERSITY OF MARINE SCIENCE AND TECHNOLOGYInventors: Yohei Murase, Etsuya Yanase, Toshiyuki Yanamoto, Mitsuru Izumi, Motohiro Miki, Kota Yamaguchi
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Publication number: 20190314462Abstract: Provided is a norovirus deactivator, including a lysozyme component that includes at least one kind selected from lysozyme and/or a salt thereof, and a denatured product thereof.Type: ApplicationFiled: June 10, 2019Publication date: October 17, 2019Applicants: NATIONAL UNIVERSITY CORPORATION TOKYO UNIVERSITY OF MARINE SCIENCE AND TECHNOLOGY, KEWPIE CORPORATIONInventors: Hajime Takahashi, Miki Sato, Takashi Miyashita, Ryo Sasahara
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Patent number: 10377330Abstract: A lateral rollover risk warning device can report vehicle rollover risk in real time during traveling with no need for inputting radius of a curved path in advance. It includes a first acceleration sensor detecting an external force applied in up-down direction of a vehicle body; an angular velocity sensor detecting a rotation around vehicle axis of vehicle body; and a second acceleration sensor detecting an external force in right-left direction of vehicle body, with an arithmetic part using detection results given by first acceleration sensor and angular velocity sensor to calculate a limit index of vehicle being led to a rollover, and using detection result given by second acceleration sensor to calculate a comparative index to be compared with limit index in real time; and a reporting part using limit index and comparative index to report lateral rollover risk warning information telling the rollover risk.Type: GrantFiled: February 25, 2015Date of Patent: August 13, 2019Assignee: National University Corporation Tokyo University of Marine Science and TechnologyInventor: Yutaka Watanabe
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Patent number: 10315741Abstract: An underwater propulsion apparatus 1 according to an embodiment includes a main body 2 having a conical tail portion, a channel 4 having an inlet 6 in the outer circumferential surface of the main body 2 and a nozzle 7 on the side downstream of the inlet 6 and in the tail portion, at least one pump 3 having an impeller 5 provided in the channel 4, a diffuser 8 attached to the main body 2 so as to surround the outer circumference of the nozzle 7, and a plurality of direction control wings 9 attached to the outer surface of the main body 2 and located in positions downstream of the nozzle 7 and close thereto, each of the plurality of direction control wings 9 having an upstream end pivotally supported by the main body 2.Type: GrantFiled: October 2, 2015Date of Patent: June 11, 2019Assignee: National University Corporation Tokyo University Of Marine Science And TechnologyInventors: Hayato Kondo, Masahiro Osakabe
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Patent number: 10283243Abstract: A superconducting bulk magnet comprising a plurality of superconducting bulk materials combined, in which breakage of superconducting bulk materials is prevented and a strong magnetic field can be generated, that is, a superconducting bulk magnet comprising a plurality of superconducting bulk materials, each comprising a single-crystal formed RE1Ba2Cu3Oy (RE is one or more elements selected from Y or rare earth elements, where 6.8?y?7.Type: GrantFiled: November 13, 2015Date of Patent: May 7, 2019Assignees: Nippon Steel & Sumitomo Metal Corporation, National University Corporation Tokyo University of Marine Science and TechnologyInventors: Mitsuru Morita, Hidekazu Teshima, Motohiro Miki, Mitsuru Izumi
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Publication number: 20190036438Abstract: Provided is a rotary machine capable of increasing cooling efficiency while preventing an increase in the weight and cost of a rotor even in a case where the diameter of the rotor is increased.Type: ApplicationFiled: August 2, 2016Publication date: January 31, 2019Applicants: KAWASAKI JUKOGYO KABUSHIKI KAISHA, NATIONAL UNIVERSITY CORPORATION TOKYO UNIVERSITY OF MARINE SCIENCE AND TECHNOLOGYInventors: Yohei MURASE, Etsuya YANASE, Toshiyuki YANAMOTO, Mitsuru IZUMI, Motohiro MIKI, Kota YAMAGUCHI
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Patent number: 10132674Abstract: A loading weight detection device applicable to various mobile bodies can accurately detect loading weight with minimized number of input variables.Type: GrantFiled: October 22, 2014Date of Patent: November 20, 2018Assignee: National University Corporation Tokyo University of Marine Science and TechnologyInventor: Yutaka Watanabe
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Publication number: 20180248464Abstract: A rotary machine cools a cooling target inside a rotor rotatable around a rotational axis, includes a condenser section disposed outside the rotor and condenses a gas phase cooling medium into a liquid phase cooling medium; an evaporator section disposed inside the rotor, and evaporates the liquid phase cooling medium generated by condensation in the condenser section into the gas phase cooling medium, by heat exchange between the cooling target and the liquid phase cooling medium; and a coupling pipe flows the liquid phase cooling medium and the gas phase cooling medium between the evaporator section and the condenser section, wherein the coupling pipe has a pipe structure in which a liquid phase cooling medium passage flows the liquid phase cooling medium generated by the condensation in the condenser section and a gas phase cooling medium passage flows the gas phase cooling medium generated by evaporation in the evaporator section.Type: ApplicationFiled: August 2, 2016Publication date: August 30, 2018Applicants: KAWASAKI JUKOGYO KABUSHIKI KAISHA, NATIONAL UNIVERSITY CORPORATION TOKYO UNIVERSITY OF MARINE SCIENCE AND TECHNOLOGYInventors: Yohei MURASE, Etsuya YANASE, Toshiyuki YANAMOTO, Mitsuru IZUMI, Motohiro MIKI, Kota YAMAGUCHI
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Publication number: 20180035652Abstract: The transplant fish production method includes selecting a donor fish species, selecting first and second fish species which are a combination that could be sterile, producing a hybrid fish species of the selected first fish species and second fish species, and transplanting reproductive cells of the donor fish species into the produced hybrid fish species.Type: ApplicationFiled: September 25, 2017Publication date: February 8, 2018Applicant: National University Corporation Tokyo University of Marine Science and TechnologyInventors: Goro YOSHIZAKI, Yutaka TAKEUCHI, Ryosuke YAZAWA, Wataru KAWAMURA
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Publication number: 20170316859Abstract: A superconducting bulk magnet comprising a plurality of superconducting bulk materials combined, in which breakage of superconducting bulk materials is prevented and a strong magnetic field can be generated, that is, a superconducting bulk magnet comprising a plurality of superconducting bulk materials, each comprising a single-crystal formed RE1Ba2Cu3Oy (RE is one or more elements selected from Y or rare earth elements, where 6.8?y?7.Type: ApplicationFiled: November 13, 2015Publication date: November 2, 2017Applicants: NIPPON STEEL & SUMITOMO METAL CORPORATION, National University Corporation Tokyo University of Marine Science and TechnologyInventors: Mitsuru MORITA, Hidekazu TESHIMA, Motohiro MIKI, Mitsuru IZUMI
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Patent number: 9797724Abstract: Provided is a capsize risk level calculation system which can calculate a capsize risk level providing an index of the capsize risk on an oscillation of hull without using hull information. This system includes an acceleration sensor detecting a reciprocating motion in an up-down direction of a vessel as an oscillation in an up-down direction of a virtual oscillation center axis; an angular velocity sensor detecting a simple pendulum motion in a rolling direction around the vessel center axis as a simple pendulum motion of the vessel COG around the oscillation center axis; and an arithmetic part calculating a capsize risk level from an oscillation radius connecting between the oscillation center axis and the vessel COG, and a capsize limit oscillation radius connecting between the oscillation center axis and the vessel metacenter, which are obtained on the results of detection by the acceleration sensor and the angular velocity sensor.Type: GrantFiled: May 16, 2013Date of Patent: October 24, 2017Assignee: NATIONAL UNIVERSITY CORPORATION TOKYO UNIVERSITY OF MARINE SCIENCE AND TECHNOLOGYInventor: Yutaka Watanabe
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Patent number: 9768652Abstract: Superconducting field poles each include a superconducting coil body formed by spirally winding a superconducting wire material, a ferromagnetic outer magnetic field-deflecting member arranged on an end face of the superconducting coil body at a radially outer side of a rotor, and a ferromagnetic inner magnetic field-deflecting member arranged on an end face of the superconducting coil body at a radially inner side of the rotor.Type: GrantFiled: September 5, 2013Date of Patent: September 19, 2017Assignees: KAWASAKI JUKOGYO KABUSHIKI KAISHA, NATIONAL UNIVERSITY CORPORATION TOKYO UNIVERSITY OF MARINE SCIENCE AND TECHNOLOGYInventors: Yohei Murase, Katsuya Umemoto, Mitsuru Izumi, Keita Tsuzuki
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Patent number: 9651371Abstract: An inclination angle calculation device comprises a motion detector for detecting motions of a traveling object during travel, in two directions included in a cross-section surface of the traveling object, the two directions being orthogonal with each other; and an arithmetic unit for calculating an inclination angle of the traveling object during travel in the cross-section surface, using a frequency of the motion in one of the two directions and a rolling frequency in the other direction of the two directions.Type: GrantFiled: December 3, 2010Date of Patent: May 16, 2017Assignee: NATIONAL UNIVERSITY CORPORATION TOKYO UNIVERSITY OF MARINE SCIENCE AND TECHNOLOGYInventor: Yutaka Watanabe
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Publication number: 20170049863Abstract: Provided is a norovirus deactivator, including a lysozyme component that includes at least one kind selected from lysozyme and/or a salt thereof, and a denatured product thereof.Type: ApplicationFiled: February 23, 2015Publication date: February 23, 2017Applicants: NATIONAL UNIVERSITY CORPORATION TOKYO UNIVERSITY OF MARINE SCIENCE AND TECHNOLOGY, KEWPIE CORPORATIONInventors: Hajime Takahashi, Miki Sato, Takashi Miyashita, Ryo Sasahara