Patents by Inventor Junya Kaneda

Junya Kaneda 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).

  • Publication number: 20170167005
    Abstract: An object of the present invention is to provide austenitic stainless steel having a high strength and high corrosion resistance while improving resistance to irradiation and reducing irradiation-induced stress corrosion cracking. A solution is as follows. Austenitic stainless steel of the present invention contains Cr: 16 to 26%, Ni: 8 to 22%, O: 0.02 to 0.4%, C: 0.08% or less, and N: 0.1% or less by weight, and further contains at least one kind of Zr: 0.2 to 2.8%, Ta: 0.4 to 5. 0%, and Ti: 0.2 to 2.6%, the balance being Fe and unavoidable impurities, wherein Zr, Ta, and Ti are precipitated as precipitates of one or more kinds of oxide particles, carbide particles, nitride particles, and composite particles thereof.
    Type: Application
    Filed: March 18, 2015
    Publication date: June 15, 2017
    Applicant: HITACHI, LTD.
    Inventors: Takahiro ISHIZAKI, Junya KANEDA
  • Publication number: 20160056655
    Abstract: A battery pack for a motor-driven appliance comprises a battery including a plurality of cells, a cell discharge unit that discharges each cell individually, a voltage detection unit that detects each cell voltage, a target cell determination unit, and a discharge control unit. When at least one cell having the cell voltage equal to or smaller than a specified threshold is present, the cell voltage that is the smallest among them is set as a smallest cell voltage, and when at least one other cell having the cell voltage larger than the smallest cell voltage by a defined value or more or having the cell voltage larger than the threshold by the defined value or more is present, the target cell determination unit determines the at least one cell as a target cell, and the discharge control unit causes the target cell to be discharged by the cell discharge unit.
    Type: Application
    Filed: August 3, 2015
    Publication date: February 25, 2016
    Inventors: Junya KANEDA, Masafumi NODA
  • Patent number: 9177677
    Abstract: An underwater remote inspection device is provided with an etching device and a magnifying observation device mounted to a supporting member. A chamber of the etching device is provided with a negative electrode, a positive electrode and a sealing device, and is connected to an etchant supply pipe and an etchant exhaust pipe. A single pair of annular sealing members of the sealing device is provided to a distal end portion of the chamber. A suction passage formed in the side wall of the chamber communicates to a sealing region formed between the sealing members. The magnifying observation device is provided with a magnifying camera in a waterproof container and a plurality of LED lights are installed to the waterproof container. The underwater remote inspection apparatus can prevent leakage of an etchant and reduce execution time of etching.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: November 3, 2015
    Assignee: HITACHI-GE NUCLEAR ENERGY, LTD.
    Inventors: Koichi Kurosawa, Satoru Aoike, Shinya Ohmori, Junya Kaneda
  • Patent number: 8760028
    Abstract: An electrical rotating machine including a stator core is provided. The stator core is formed of substantially sector-shaped sheet segments die-cut from electrical steel sheets and arranged in a circumferential direction of the stator core to form circular sheets which are stacked in an axial direction of the stator core. In the electrical rotating machine, end regions of the stator core are formed of stacked sheet segments die-cut from non-grain oriented steel sheets, and the other region of the stator core is formed of stacked sheet segments die-cut from grain oriented steel sheets.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: June 24, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Akihito Nakahara, Kazuhiko Takahashi, Kazumasa Ide, Junya Kaneda, Kenichi Hattori, Takashi Watanabe
  • Publication number: 20110091002
    Abstract: An underwater remote inspection device is provided with an etching device and a magnifying observation device mounted to a supporting member. A chamber of the etching device is provided with a negative electrode, a positive electrode and a sealing device, and is connected to an etchant supply pipe and an etchant exhaust pipe. A single pair of annular sealing members of the sealing device is provided to a distal end portion of the chamber. A suction passage formed in the side wall of the chamber communicates to a sealing region formed between the sealing members. The magnifying observation device is provided with a magnifying camera in a waterproof container and a plurality of LED lights are installed to the waterproof container. The underwater remote inspection apparatus can prevent leakage of an etchant and reduce execution time of etching.
    Type: Application
    Filed: October 19, 2010
    Publication date: April 21, 2011
    Applicant: HITACHI-GE NUCLEAR ENERGY, LTD.
    Inventors: Koichi KUROSAWA, Satoru AOIKE, Shinya OHMORI, Junya KANEDA
  • Patent number: 7416814
    Abstract: A lithium secondary battery, which comprises a positive electrode, a negative electrode containing a lithium ion-storable/dischargeable negative electrode-active material and a lithium ion conductive, non-aqueous electrolytic solution or polymer electrolyte can have distinguished charging/discharging characteristics and a higher safety, when the negative electrode material contains particles comprising carbonaceous materials and at least one of elements capable of forming a compound with Li; the elements have a melting point of at least 900° C. and a thermal expansion coefficient of not more than 9 ppm/K at room temperature; the particles are embedded in a plurality of layers of the carbonaceous materials; the particles being subjected to a mechanical treatment to make particle sizes of the particles smaller than the initial particle size in advance.
    Type: Grant
    Filed: December 31, 2002
    Date of Patent: August 26, 2008
    Assignees: Hitachi, Ltd., Hitachi Chemical Co., Ltd.
    Inventors: Junya Kaneda, Noriyuki Watanabe, Yasuhisa Aono, Seiji Takeuchi, Yasushi Muranaka, Kouichi Takei
  • Publication number: 20060043820
    Abstract: An electrical rotating machine including a stator core is provided. The stator core is formed of substantially sector-shaped sheet segments die-cut from electrical steel sheets and arranged in a circumferential direction of the stator core to form circular sheets which are stacked in an axial direction of the stator core. In the electrical rotating machine, end regions of the stator core are formed of stacked sheet segments die-cut from non-grain oriented steel sheets, and the other region of the stator core is formed of stacked sheet segments die-cut from grain oriented steel sheets.
    Type: Application
    Filed: July 29, 2005
    Publication date: March 2, 2006
    Inventors: Akihito Nakahara, Kazuhiko Takahashi, Kazumasa Ide, Junya Kaneda, Kenichi Hattori, Takashi Watanabe
  • Patent number: 6909185
    Abstract: A composite material is provided, which has a low thermal expansivity, a high thermal conductivity, and a good plastic workability, which composite material may be applied to semiconductor devices and many other uses. The composite material is composed of metal and inorganic particles having a smaller coefficient of thermal expansion than the metal. It is characterized in that the inorganic particles are dispersed in such a way that 95% or more of them (in terms of their area in cross-section) form aggregates of complex configuration joined together. The composite material contains 20-80 vol % of copper oxide, with the remainder being copper. It has a coefficient of thermal expansion of 5×10?6 to 14×10?6/° C. and thermal conductivity of 30-325 W/m·K in the range of room temperature to 300° C. It is suitable for the radiator plate of semiconductor devices and the dielectric plate of electrostatic attractors.
    Type: Grant
    Filed: December 7, 1998
    Date of Patent: June 21, 2005
    Assignee: Hitachi, Ltd.
    Inventors: Yasuo Kondo, Junya Kaneda, Tasuhisa Aono, Teruyoshi Abe, Masahisa Inagaki, Ryuichi Saito, Yoshihiko Koike, Hideo Arakawa
  • Publication number: 20050093390
    Abstract: A rotor has magnets segmented in a circumferential direction of a periphery of a shaft, wherein magnetizing directions of the segmented magnets continuously vary, and a non-magnetic material or a ferromagnetic material is interposed in a circumferential gap between the segmented magnets. Further, a method of manufacturing a rotor comprises steps of arranging coils so that a longitudinal direction of each of the coils is along an axis of the shaft and magnetizing the segmented magnets. Still further, a rotary machine uses the rotor.
    Type: Application
    Filed: December 6, 2004
    Publication date: May 5, 2005
    Inventors: Matahiro Komuro, Masashi Kitamura, Junya Kaneda, Motoya Ito, Teruyoshi Abe, Yoshihiko Kuriyama
  • Patent number: 6833617
    Abstract: It is an object of the present invention to provide a composite material having low thermal expansivity, high thermal conductivity, and good plastic workability, which is applied to semiconductor devices and many other uses. The composite material is composed of metal and inorganic particles having a smaller coefficient of thermal expansion than said metal. It is characterized in that said inorganic particles disperse in such a way that 95% or more of them (in terms of their area in cross-section) form aggregates of complex configuration joining together. The composite material contains 20-80 vol % of copper oxide, with the remainder being copper. It has a coefficient of thermal expansion of 5×10−6 to 14×10−6/° C. and thermal conductivity of 30-325 W/m·K in the range of room temperature to 300° C. It is suitable for the radiator plate of semiconductor devices and the dielectric plate of electrostatic attractors.
    Type: Grant
    Filed: February 12, 2003
    Date of Patent: December 21, 2004
    Assignee: Hitachi, Ltd.
    Inventors: Yasuo Kondo, Junya Kaneda, Tasuhisa Aono, Teruyoshi Abe, Masahisa Inagaki, Ryuichi Saito, Yoshihiko Koike, Hideo Arakawa
  • Publication number: 20040031545
    Abstract: Provided are a composite material excellent in plastic workability, a method of producing the composite material, a heat-radiating board of a semiconductor equipment, and a semiconductor equipment to which this heat-radiating board is applied.
    Type: Application
    Filed: August 20, 2003
    Publication date: February 19, 2004
    Inventors: Kazutaka Okamoto, Yasuo Kondo, Teruyoshi Abe, Yasuhisa Aono, Junya Kaneda, Ryuichi Saito, Yoshihiko Koike
  • Patent number: 6657413
    Abstract: Providing control apparatus with a maximum torque/current ratio control means by which the relationship between the maximum torque and current amplitudes and the relationship between the maximum torque and current phases are converted to numeric expressions including one or more than one linear function with the torque taken as the parameter, then the current amplitude command and current phase command data that yields a maximum torque is computed, and computed data is sent as an output signal.
    Type: Grant
    Filed: September 20, 2001
    Date of Patent: December 2, 2003
    Assignee: Hitachi, Ltd.
    Inventors: Junnosuke Nakatsugawa, Yukio Kawabata, Tsunehiro Endo, Masashi Kitamura, Junya Kaneda
  • Patent number: 6646344
    Abstract: Provided are a composite material excellent in plastic workability, a method of producing the composite material, a heat-radiating board of a semiconductor equipment, and a semiconductor equipment to which this heat-radiating board is applied. This composite material comprises a metal and an inorganic compound formed to have a dendritic shape or a bar shape. In particular, this composite material is a copper composite material, which comprises 10 to 55 vol. % cuprous oxide (Cu2O) and the balance of copper (Cu) and incidental impurities and has a coefficient of thermal expansion in a temperature range from a room temperature to 300° C. of from 5×10−6 to 17×10−6/° C. and a thermal conductivity of 100 to 380 W/m·k. This composite material can be produced by a process comprising the steps of melting, casting and working and is applied to a heat-radiating board of a semiconductor article.
    Type: Grant
    Filed: February 25, 2000
    Date of Patent: November 11, 2003
    Assignee: Hitachi, Ltd.
    Inventors: Kazutaka Okamoto, Yasuo Kondo, Teruyoshi Abe, Yasuhisa Aono, Junya Kaneda, Ryuichi Saito, Yoshihiko Koike
  • Patent number: 6638662
    Abstract: A lithium secondary battery comprising a positive electrode, a negative electrode containing a lithium ion-storable/dischargeable negative electrode-active material and a lithium ion conductive, non-aqueous electrolytic solution or polymer electrolyte, characterized in that the negative electrode-active material comprises particles of carbonaceous material and particles of metal and metal oxide capable of enhancing lithium ion interstitial diffusibility/releasability as embedded in the particles of carbonaceous material, particles of carbonaceous materials and lithium ion interstitially diffusible/releasable particles being prepared by carbonization of a mixture thereof with MA or carbon precursor, has a high capacity and a long cycle life, and can be used in various electric appliances.
    Type: Grant
    Filed: February 16, 2000
    Date of Patent: October 28, 2003
    Assignee: Hitachi, Ltd.
    Inventors: Junya Kaneda, Seiji Takeuchi, Noriyuki Watanabe, Takahiro Yamaki, Yasushi Muranaka, Yasuhisa Aono
  • Patent number: 6630734
    Abstract: Provided are a composite material excellent in plastic workability, a method of producing the composite material, a heat-radiating board of a semiconductor equipment, and a semiconductor equipment to which this heat-radiating board is applied. This composite material comprises a metal and an inorganic compound formed to have a dendritic shape or a bar shape. In particular, this composite material is a copper composite material, which comprises 10 to 55 vol. % cuprous oxide (Cu2O) and the balance of copper (Cu) and incidental impurities and has a coefficient of thermal expansion in a temperature range from a room temperature to 300° C. of from 5×10−6 to 17×10−6/° C. and a thermal conductivity of 100 to 380 W/m·k. This composite material can be produced by a process comprising the steps of melting, casting and working and is applied to a heat-radiating board of a semiconductor article.
    Type: Grant
    Filed: March 21, 2002
    Date of Patent: October 7, 2003
    Assignee: Hitachi, Ltd.
    Inventors: Kazutaka Okamoto, Yasuo Kondo, Teruyoshi Abe, Yasuhisa Aono, Junya Kaneda, Ryuichi Saito, Yoshihiko Koike
  • Patent number: 6611056
    Abstract: Provided are a composite material excellent in plastic workability, a method of producing the composite material, a heat-radiating board of a semiconductor equipment, and a semiconductor equipment to which this heat-radiating board is applied. This composite material comprises a metal and an inorganic compound formed to have a dendritic shape or a bar shape. In particular, this composite material is a copper composite material, which comprises 10 to 55 vol. % cuprous oxide (Cu2O) and the balance of copper (Cu) and incidental impurities and has a coefficient of thermal expansion in a temperature range from a room temperature to 300° C. of from 5×10−6 to 17×10−6/° C. and a thermal conductivity of 100 to 380 W/m·k. This composite material can be produced by a process comprising the steps of melting, casting and working and is applied to a heat-radiating board of a semiconductor article.
    Type: Grant
    Filed: March 21, 2002
    Date of Patent: August 26, 2003
    Assignee: Hitachi, Ltd.
    Inventors: Kazutaka Okamoto, Yasuo Kondo, Teruyoshi Abe, Yasuhisa Aono, Junya Kaneda, Ryuichi Saito, Yoshihiko Koike
  • Publication number: 20030146499
    Abstract: It is an object of the present invention to provide a composite material having low thermal expansivity, high thermal conductivity, and good plastic workability, which is applied to semiconductor devices and many other uses.
    Type: Application
    Filed: February 12, 2003
    Publication date: August 7, 2003
    Inventors: Yasuo Kondo, Junya Kaneda, Tasuhisa Aono, Teruyoshi Abe, Masahisa Inagaki, Ryuichi Saito, Yoshihiko Koike, Hideo Arakawa
  • Publication number: 20030146498
    Abstract: It is an object of the present invention to provide a composite material having low thermal expansivity, high thermal conductivity, and good plastic workability, which is applied to semiconductor devices and many other uses.
    Type: Application
    Filed: February 12, 2003
    Publication date: August 7, 2003
    Inventors: Yasuo Kondo, Junya Kaneda, Tasuhisa Aono, Teruyoshi Abe, Masahisa Inagaki, Ryuichi Saito, Yoshihiko Koike, Hideo Arakawa
  • Publication number: 20030129494
    Abstract: A lithium secondary battery comprising a positive electrode, a negative electrode containing a lithium ion-storable/dischargeable negative electrode-active material and a lithium ion conductive, non-aqueous electrolytic solution or polymer electrolyte, characterized in that the negative electrode-active material comprises particles of carbonaceous material and particles of metal and metal oxide capable of enhancing lithium ion interstitial diffusibility/releasability as embedded in the particles of carbonaceous material, particles of carbonaceous materials and lithium ion interstitially diffusible/releasable particles being prepared by carbonization of a mixture thereof with MA or carbon precursor, has a high capacity and a long cycle life, and can be used in various electric appliances.
    Type: Application
    Filed: February 16, 2000
    Publication date: July 10, 2003
    Inventors: Junya Kaneda, Seiji Takeuchi, Noriyuki Watanabe, Takahiro Yamaki, Yasushi Muranaka, Yasuhisa Aono
  • Publication number: 20030117032
    Abstract: A rotor has magnets segmented in a circumferential direction of a periphery of a shaft, wherein magnetizing directions of the segmented magnets continuously vary, and a non-magnetic material or a ferromagnetic material is interposed in a circumferential gap between the segmented magnets. Further, a method of manufacturing a rotor comprises steps of arranging coils so that a longitudinal direction of each of the coils is along an axis of the shaft and magnetizing the segmented magnets. Still further, a rotary machine uses the rotor.
    Type: Application
    Filed: November 1, 2002
    Publication date: June 26, 2003
    Inventors: Matahiro Komuro, Masashi Kitamura, Junya Kaneda, Motoya Ito, Teruyoshi Abe, Yoshihiko Kuriyama