Patents by Inventor Michitaka Ono
Michitaka Ono 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: 10706978Abstract: There is provided a core of a boiling water reactor that can be operated without loading a new fuel assembly at an operation cycle before decommissioning. The core of the boiling water reactor includes multiple fuel assemblies loaded in a square lattice shape. The multiple fuel assemblies are arranged in the core based on the number of residence cycles of fuel assemblies laterally adjacent and longitudinally adjacent to a fuel assembly having the shortest loading period in core cross section. The arrangement of fuel assemblies is also based on the number of residence cycles of fuel assemblies diagonally adjacent to the fuel assembly having the shortest loading period.Type: GrantFiled: October 18, 2017Date of Patent: July 7, 2020Assignee: Hitachi-GE Nuclear Energy, Ltd.Inventors: Michitaka Ono, Motoo Aoyama, Takeshi Mitsuyasu
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Publication number: 20180122522Abstract: There is provided a core of a boiling water reactor that can be operated without loading a new fuel assembly at an operation cycle before decommissioning. In the core of the boiling water reactor in which multiple fuel assemblies are loaded in a square lattice shape, during the fuel exchange, dispositions of the multiple fuel assemblies loaded into the core are changed without loading a new fuel assembly in the core, based on the number of residence cycles, in the core, of fuel assemblies laterally adjacent and longitudinally adjacent to a fuel assembly having the shortest loading period in core cross section and the number of residence cycles, in the core, of fuel assemblies diagonally adjacent thereto, among fuel assemblies loaded into the core after the fuel exchange without loading a fuel assembly having a shorter loading period than a fuel assembly having the shortest loading period loaded into the core before the fuel exchange in the core after the fuel exchange.Type: ApplicationFiled: October 18, 2017Publication date: May 3, 2018Inventors: Michitaka ONO, Motoo AOYAMA, Takeshi MITSUYASU
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Patent number: 9234692Abstract: According to one embodiment, there is provided a superconducting magnetic apparatus that conductively cools a superconducting coil contained in a vacuum container with a cryogenic refrigerator. The superconducting magnetic apparatus includes a thermal conductor thermally connecting a cooling stage of the cryogenic refrigerator to the superconducting coil, a radiation blocking layer provided around the superconducting coil, and a coil supporting body supporting the superconducting coil by partial or entire contact with a surface of the superconducting coil.Type: GrantFiled: June 14, 2010Date of Patent: January 12, 2016Assignee: Kabushiki Kaisha ToshibaInventors: Kei Koyanagi, Taizo Tosaka, Tsutomu Shimonosono, Michitaka Ono, Tsutomu Kurusu
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Patent number: 8655423Abstract: A superconducting coil is provided with a superconducting coil portion having a plurality of concentric coil layer portions. The superconducting coil portion is formed by winding a thin-film superconducting wire and an insulating material with a multilayer structure, wherein the concentric coil layer portions are adjacent to each other at boundary portions having adhesive force that are set to be less than that of other portions. The concentric coil layer portions each has a non-circular shape or circular shape.Type: GrantFiled: November 14, 2011Date of Patent: February 18, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Hiroshi Miyazaki, Sadanori Iwai, Kel Koyanagi, Taizo Tosaka, Kenji Tasaki, Masami Urata, Shigeru Ioka, Yusuke Ishii, Michitaka Ono
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Publication number: 20120122697Abstract: A superconducting coil is provided with a super-conducting coil portion having a plurality of concentric coil layer portions. The superconducting coil portion is formed by winding a thin-film superconducting wire and an insulating material with a multilayer structure, wherein the concentric coil layer portions are adjacent to each other at boundary portions having adhesive force that are set to be less than that of other portions. The concentric coil layer portions each has a non-circular shape or circular shape.Type: ApplicationFiled: November 14, 2011Publication date: May 17, 2012Applicant: Kabushiki Kaisha ToshibaInventors: Hiroshi Miyazaki, Sadanori Iwai, Kei Koyanagi, Taizo Tosaka, Kenji Tasaki, Masami Urata, Shigeru Ioka, Yusuke Ishii, Michitaka Ono
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Patent number: 7898778Abstract: A superconducting coil quench detection method and device capable of detecting a quench detection voltage even in a superconducting coil where a plurality of element coils are connected with a plurality of current sources and operated with repetitive pulses or AC and a voltage of several kV is applied continuously as an induction voltage. A super conducting power storage unit is also provided.Type: GrantFiled: April 18, 2006Date of Patent: March 1, 2011Assignee: Kabushiki Kaisha ToshibaInventors: Tsutomu Kurusu, Michitaka Ono, Taizo Tosaka, Yusuke Ishii, Yasuhiro Yamashita
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Publication number: 20100313574Abstract: According to one embodiment, there is provided a superconducting magnetic apparatus that conductively cools a superconducting coil contained in a vacuum container with a cryogenic refrigerator. The superconducting magnetic apparatus includes a thermal conductor thermally connecting a cooling stage of the cryogenic refrigerator to the superconducting coil, a radiation blocking layer provided around the superconducting coil, and a coil supporting body supporting the superconducting coil by partial or entire contact with a surface of the superconducting coil.Type: ApplicationFiled: June 14, 2010Publication date: December 16, 2010Inventors: Kei KOYANAGI, Taizo Tosaka, Tsutomu Shimonosono, Michitaka Ono, Tsutomu Kurusu
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Publication number: 20090046399Abstract: A superconducting coil quench detection method and device capable of detecting a quench detection voltage even in a superconducting coil where a plurality of element coils are connected with a plurality of current sources and operated with repetitive pulses or AC and a voltage of several kV is applied continuously as an induction voltage. A super conducting power storage unit is also provided. The quench detection device comprises a pickup coil (2) provided in a superconducting coil (1) or in the vicinity thereof, an overvoltage protection circuit (4) a voltage signal below a predetermined level by receiving the difference between a voltage induced in the superconducting coil (1) at the time of quenching of the superconducting coil (1) and a voltage induced in the pickup coil (2), and a quench detector (3) for detecting quench of the superconducting coil (1) by receiving the voltage signal.Type: ApplicationFiled: April 18, 2006Publication date: February 19, 2009Inventors: Tsutomu Kurusu, Michitaka Ono, Taizo Tosaka, Yusuke Ishii, Yasuhiro Yamashita
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Patent number: 6935870Abstract: A connector comprises a plurality of contact arrays parallel to one another. Each of the contact arrays includes two signal contacts (S) adjacent to each other and a ground contact (G) aligned with the signal contacts. In each contact array, the ground contact is located at a position corresponding to an intermediate position between two signal contacts in a next contact array.Type: GrantFiled: March 5, 2002Date of Patent: August 30, 2005Assignee: Japan Aviation Electronics Industry, LimitedInventors: Nobukazu Kato, Koji Hayashi, Kazushi Kamata, Michitaka Ono
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Publication number: 20020123254Abstract: A connector comprises a plurality of contact arrays parallel to one another. Each of the contact arrays includes two signal contacts (S) adjacent to each other and a ground contact (G) aligned with the signal contacts. In each contact array, the ground contact is located at a position corresponding to an intermediate position between two signal contacts in a next contact array.Type: ApplicationFiled: March 5, 2002Publication date: September 5, 2002Inventors: Nobukazu Kato, Koji Hayashi, Kazushi Kamata, Michitaka Ono
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Patent number: 6107905Abstract: A superconducting magnet apparatus including a superconducting coil for generating a magnetic field, a radiation shield surrounding the superconducting coil, a refrigerator for cooling the superconducting coil, and a cryostat provided inside the radiation shield to store a coolant cooled by the refrigerator, wherein the cryostat is thermally connected to the superconducting coil.Type: GrantFiled: March 25, 1999Date of Patent: August 22, 2000Assignee: Kabushiki Kaisha ToshibaInventors: Koji Itoh, Michitaka Ono, Toru Kuriyama, Yasutsugu Morii
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Patent number: 5795190Abstract: In a PC card connector which comprises a connector housing having a receiving space for receiving the PC card and holding a plurality of contact elements disposed in the receiving space for mating with a plurality of contacts of the PC card received in the receiving space, and an ejecting mechanism mounted on the connector housing for ejecting the PC card from the connector, the ejecting mechanism having an ejecting plate slidably mounted on an outer surface of the connector housing so as to engage an edge of the PC card and push out the PC card, a ground plate is fixed onto the connector housing and disposed between the ejecting plate and the outer surface of the connector housing. The ground plate has elastic tabs which are for engaging with ground pads on the PC card and fixing portions for fixing the ground plate onto the connector housing. The fixing portion is also used for connection with a ground pattern on a circuit board on which the connector is mounted in actual use.Type: GrantFiled: June 28, 1996Date of Patent: August 18, 1998Assignee: Japan Aviation Electronics Industry LimitedInventor: Michitaka Ono