Patents by Inventor Kohei Nakayama
Kohei Nakayama 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: 20170077580Abstract: A thermal insulation waveguide between a high-temperature unit and a low-temperature unit in a vacuum, chamber of an embodiment, the thermal insulation waveguide includes, a first substrate including a first line in the high-temperature unit, a second substrate including a second line in the low temperature unit, and a thermal insulation element connecting the substrates, and including a third line including an inductance component and connecting the first and second lines. The first substrate includes a first capacitor unit connected with the first line. The second substrate includes a second capacitor unit connected with the second line.Type: ApplicationFiled: September 8, 2016Publication date: March 16, 2017Inventors: Tamio KAWAGUCHI, Noritsugu SHIOKAWA, Hiroaki IKEUCHI, Tadahiro SASAKI, Kohei NAKAYAMA, Mutsuki YAMAZAKI, Hiroyuki KAYANO
-
Publication number: 20170062892Abstract: A superconducting filter device of an embodiment includes: a high-frequency filter includes a superconducting element, and a dielectric member; and a drive tool configured to adjust a distance between the superconducting element and the dielectric member. The dielectric member and the drive tool take both a connection state and a separation state.Type: ApplicationFiled: June 8, 2016Publication date: March 2, 2017Applicant: Kabushiki Kaisha ToshibaInventors: Mutsuki YAMAZAKI, Kohei NAKAYAMA, Noritsugu SHIOKAWA, Tamio KAWAGUCHI, Hiroyuki KAYANO
-
Patent number: 9325045Abstract: A filter according to embodiments includes n resonators, an input line, and an output line. Each of the resonators includes a first comb-like structure, a second comb-like structure, and a connection line that connect the first and the second comb-like structure. The first and second comb-like structures have a plurality of first lines and a second line that is connected to one end of the first lines. The first lines of the first and the second comb-like structures are arranged parallel to each other. The connection line has bending portions. Further, a second comb-like structure of a k-th resonator and a first comb-like structure of a (k+1)-th resonator are arranged so as to have an interlaced arrangement, and a second comb-like structure of the (k+1)-th resonator and a first comb-like structure of a (k+2)-th resonator are arranged so as to have an interlaced arrangement.Type: GrantFiled: March 12, 2014Date of Patent: April 26, 2016Assignee: Kabushiki Kaisha ToshibaInventors: Noritsugu Shiokawa, Hiroyuki Kayano, Tamio Kawaguchi, Kohei Nakayama
-
Publication number: 20160072168Abstract: According to one embodiment, a multiband filter includes a first resonator and a second resonator. The first resonator has a first capacitive component and a first inductive component. A signal of a first frequency is inputted to the first resonator. The second resonator has a second capacitive component and a second inductive component. A signal of a second frequency is inputted to the second resonator. The second frequency is different from the first frequency. A distance between a first capacitive component of the first resonator and a second capacitive component of the second resonator and a distance between a first inductive component of the first resonator and a second inductive component of the second resonator is longer than a shortest distance out of a distance between the first resonator and the second resonator. The capacitive components occur at the capacitance. The inductive components occur at the inductance.Type: ApplicationFiled: July 8, 2015Publication date: March 10, 2016Applicant: Kabushiki Kaisha ToshibaInventors: Tamio KAWAGUCHI, Noritsugu SHIOKAWA, Hiroyuki KAYANO, Kohei NAKAYAMA, Mutsuki YAMAZAKI
-
Patent number: 9194387Abstract: A refrigeration device of an embodiment includes: a heat-insulating vacuum chamber; a refrigerator cryogenic unit that is provided in the heat-insulating vacuum chamber and is cooled to a lower temperature than 195 K; a catalytic electrode that is provided in the heat-insulating vacuum chamber and contains a transition metal at least in part of a surface thereof; a power supply that applies a voltage to the catalytic electrode; and a heating unit that is provided in the heat-insulating vacuum chamber and heats the catalytic electrode. In this refrigeration device, the catalytic electrode is insulated from the heat-insulating vacuum chamber and the heating unit, and the heating unit is insulated from the heat-insulating vacuum chamber and the catalytic electrode.Type: GrantFiled: August 15, 2012Date of Patent: November 24, 2015Assignee: Kabushiki Kaisha ToshibaInventors: Kohei Nakayama, Mutsuki Yamazaki, Hiroyuki Kayano
-
Publication number: 20150262734Abstract: According to one embodiment, a superconducting member includes a superconducting layer, a foundation layer, and an intermediate layer. The superconducting layer is made of an oxide including Cu and Ba. The foundation layer is made of cerium oxide. The intermediate layer is provided between the foundation layer and the superconducting layer, and is made of BaxCayCeO3 (0.6<x<0.8 and 0.2<y<0.4).Type: ApplicationFiled: February 24, 2015Publication date: September 17, 2015Applicant: Kabushiki Kaisha ToshibaInventors: Kohei NAKAYAMA, Tamio KAWAGUCHI, Hiroaki IKEUCHI, Hiroyuki KAYANO
-
Patent number: 9099778Abstract: A superconducting antenna device of an embodiment includes an array antenna made by stacking a flat antenna having one or more antennas made of a superconducting material and a ground pattern on a low-loss dielectric substrate from a short wave band to an extremely-high frequency band, a vacuum chamber configured to accommodate the array antenna, a refrigerator configured to cool the array antenna, and a vacuum insulating window configured to pass an electromagnetic wave from a short wave band to an extremely-high frequency band in a direction of directivity of the array antenna in the vacuum chamber.Type: GrantFiled: September 11, 2014Date of Patent: August 4, 2015Assignee: Kabushiki Kaisha ToshibaInventors: Tamio Kawaguchi, Hiroyuki Kayano, Noritsugu Shiokawa, Kohei Nakayama, Mutsuki Yamazaki
-
Publication number: 20150084635Abstract: A magnetic resonance imaging apparatus of an embodiment includes a housing, a static magnetic field source having a superconducting coil or a permanent magnet inside the housing, and a superconducting array antenna inside the housing.Type: ApplicationFiled: September 11, 2014Publication date: March 26, 2015Applicant: Kabushiki Kaisha ToshibaInventors: Tamio KAWAGUCHI, Hiroyuki Kayano, Noritsugu Shiokawa, Kohei Nakayama, Mutsuki Yamazaki
-
Publication number: 20150087522Abstract: A superconducting antenna device of an embodiment includes an array antenna made by stacking a flat antenna having one or more antennas made of a superconducting material and a ground pattern on a low-loss dielectric substrate from a short wave band to an extremely-high frequency band, a vacuum chamber configured to accommodate the array antenna, a refrigerator configured to cool the array antenna, and a vacuum insulating window configured to pass an electromagnetic wave from a short wave band to an extremely-high frequency band in a direction of directivity of the array antenna in the vacuum chamber.Type: ApplicationFiled: September 11, 2014Publication date: March 26, 2015Applicant: Kabushiki Kaisha ToshibaInventors: Tamio KAWAGUCHI, Hiroyuki KAYANO, Noritsugu SHIOKAWA, Kohei NAKAYAMA, Mutsuki YAMAZAKI
-
Publication number: 20150065349Abstract: A superconducting filter device of an embodiment includes: a high-frequency filter includes a superconducting element, and a dielectric member; and a drive tool configured to adjust a distance between the superconducting element and the dielectric member. The dielectric member and the drive tool take both a connection state and a separation state.Type: ApplicationFiled: August 28, 2014Publication date: March 5, 2015Applicant: Kabushiki Kaisha ToshibaInventors: Mutsuki Yamazaki, Kohei Nakayama, Noritsugu Shiokawa, Tamio Kawaguchi, Hiroyuki Kayano
-
Publication number: 20140327500Abstract: A filter according to embodiments includes n resonators, an input line, and an output line. Each of the resonators includes a first comb-like structure, a second comb-like structure, and a connection line that connect the first and the second comb-like structure. The first and second comb-like structures have a plurality of first lines and a second line that is connected to one end of the first lines. The first lines of the first and the second comb-like structures are arranged parallel to each other. The connection line has bending portions. Further, a second comb-like structure of a k-th resonator and a first comb-like structure of a (k+1)-th resonator are arranged so as to have an interlaced arrangement, and a second comb-like structure of the (k+1)-th resonator and a first comb-like structure of a (k+2)-th resonator are arranged so as to have an interlaced arrangement.Type: ApplicationFiled: March 12, 2014Publication date: November 6, 2014Applicant: Kabushiki Kaisha ToshibaInventors: Noritsugu SHIOKAWA, Hiroyuki Kayano, Tamio Kawaguchi, Kohei Nakayama
-
Patent number: 8803639Abstract: A heat insulating transmission line includes a first waveguide with a first aperture end, a second waveguide with a second aperture end, and a reflector. The second waveguide is arranged coaxially with the first waveguide. The second aperture end faces the first aperture end through an air gap. The reflector is provided outside the air gap, and controls radiation power from the air gap. In addition, the reflector is substantially parallel to a portion of a virtual plane connecting an inner wall of the first aperture end of the first waveguide and an inner wall of the second aperture end of the second waveguide. When a mean frequency of a signal transmitting through the heat insulating transmission line is expressed as ?, a distance between the virtual surface and the reflector is not less than N×?/2?0.05? and not more than N×?/2+0.2? (N is a positive integer).Type: GrantFiled: June 6, 2013Date of Patent: August 12, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Tamio Kawaguchi, Hiroyuki Kayano, Noritsugu Shiokawa, Kohei Nakayama
-
Patent number: 8570120Abstract: A heat insulating transmission line includes a first waveguide with a first aperture end, a second waveguide with a second aperture end, and a reflector. The second waveguide is arranged coaxially with the first waveguide. The second aperture end faces the first aperture end through an air gap. The reflector is provided outside the air gap, and controls radiation power from the air gap. In addition, the reflector is substantially parallel to a portion of a virtual plane connecting an inner wall of the first aperture end of the first waveguide and an inner wall of the second aperture end of the second waveguide. When a mean frequency of a signal transmitting through the heat insulating transmission line is expressed as ?, a distance between the virtual surface and the reflector is not less than N×?/2?0.05? and not more than N×?/2+0.2? (N is a positive integer).Type: GrantFiled: December 15, 2009Date of Patent: October 29, 2013Assignee: Kabushiki Kaisha ToshibaInventors: Tamio Kawaguchi, Hiroyuki Kayano, Noritsugu Shiokawa, Kohei Nakayama
-
Publication number: 20130265122Abstract: A heat insulating transmission line includes a first waveguide with a first aperture end, a second waveguide with a second aperture end, and a reflector. The second waveguide is arranged coaxially with the first waveguide. The second aperture end faces the first aperture end through an air gap. The reflector is provided outside the air gap, and controls radiation power from the air gap. In addition, the reflector is substantially parallel to a portion of a virtual plane connecting an inner wall of the first aperture end of the first waveguide and an inner wall of the second aperture end of the second waveguide. When a mean frequency of a signal transmitting through the heat insulating transmission line is expressed as ?, a distance between the virtual surface and the reflector is not less than N×?/2?0.05? and not more than N×?/2+0.2? (N is a positive integer).Type: ApplicationFiled: June 6, 2013Publication date: October 10, 2013Inventors: Tamio KAWAGUCHI, Hiroyuki Kayano, Noritsugu Shiokawa, Kohei Nakayama
-
Publication number: 20130081410Abstract: A refrigeration device of an embodiment includes: a heat-insulating vacuum chamber; a refrigerator cryogenic unit that is provided in the heat-insulating vacuum chamber and is cooled to a lower temperature than 195 K; a catalytic electrode that is provided in the heat-insulating vacuum chamber and contains a transition metal at least in part of a surface thereof; a power supply that applies a voltage to the catalytic electrode; and a heating unit that is provided in the heat-insulating vacuum chamber and heats the catalytic electrode. In this refrigeration device, the catalytic electrode is insulated from the heat-insulating vacuum chamber and the heating unit, and the heating unit is insulated from the heat-insulating vacuum chamber and the catalytic electrode.Type: ApplicationFiled: August 15, 2012Publication date: April 4, 2013Applicant: Kabushiki Kaisha ToshibaInventors: Kohei NAKAYAMA, Mutsuki Yamazaki, Hiroyuki Kayano
-
Patent number: 8105981Abstract: This invention provides a thin superconducting oxide film, which can realize a high critical current, and a superconducting member having a high level of electric power resistance. The superconducting member comprises a sapphire R face substrate, a buffer layer formed of grain lumps of an oxide provided on the sapphire R face substrate, and a superconducting layer provided on the buffer layer. The nearest neighbor distance between oxygen atoms in the oxide and the grain diameter of grain lumps of the oxide have been specified. The superconducting member can be used as a member for superconducting filters.Type: GrantFiled: August 28, 2008Date of Patent: January 31, 2012Assignee: Kabushiki Kaisha ToshibaInventors: Kohei Nakayama, Mutsuki Yamazaki
-
Patent number: 7829141Abstract: A supporting method for supporting a metal particle including at least two elements on a surface of a plurality of granular supports in a decompression device, the supporting method supporting the metal particle whose particle diameter being smaller than a grain size of the granular support comprises holding the plurality of granular supports in a container and rotating a stirring device and/or the container, a stirring period in which the relative position among the plurality of granular supports are changed and a non-stirring period in which the relative position among the plurality of granular supports are not changed being altered by the rotating, wherein the decompression device comprises, an evaporation source for evaporating elements to form an alloy particle, the container for holding the plurality of granular supports in the decompression device so that a relative position among granular supports is able to be changed, a rotating device for rotating the container and the stirring device disposed in tType: GrantFiled: August 28, 2008Date of Patent: November 9, 2010Assignee: Kabushiki Kaisha ToshibaInventors: Mutsuki Yamazaki, Kohei Nakayama, Yoshihiko Nakano, Wu Mei
-
Publication number: 20100164655Abstract: A heat insulating transmission line includes a first waveguide with a first aperture end, a second waveguide with a second aperture end, and a reflector. The second waveguide is arranged coaxially with the first waveguide. The second aperture end faces the first aperture end through an air gap. The reflector is provided outside the air gap, and controls radiation power from the air gap. In addition, the reflector is substantially parallel to a portion of a virtual plane connecting an inner wall of the first aperture end of the first waveguide and an inner wall of the second aperture end of the second waveguide. When a mean frequency of a signal transmitting through the heat insulating transmission line is expressed as ?, a distance between the virtual surface and the reflector is not less than N×?/2?0.05? and not more than N×?/2+0.2? (N is a positive integer).Type: ApplicationFiled: December 15, 2009Publication date: July 1, 2010Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Tamio KAWAGUCHI, Hiroyuki KAYANO, Noritsugu SHIOKAWA, Kohei NAKAYAMA
-
Publication number: 20090082211Abstract: This invention provides a thin superconducting oxide film, which can realize a high critical current, and a superconducting member having a high level of electric power resistance. The superconducting member comprises a sapphire R face substrate, a buffer layer formed of grain lumps of an oxide provided on the sapphire R face substrate, and a superconducting layer provided on the buffer layer. The nearest neighbor distance between oxygen atoms in the oxide and the grain diameter of grain lumps of the oxide have been specified. The superconducting member can be used as a member for superconducting filters.Type: ApplicationFiled: August 28, 2008Publication date: March 26, 2009Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Kohei NAKAYAMA, Mutsuki Yamazaki
-
Publication number: 20090069173Abstract: A supporting method for supporting a metal particle including at least two elements on a surface of a plurality of granular supports in a decompression device, the supporting method supporting the metal particle whose particle diameter being smaller than a grain size of the granular support comprises holding the plurality of granular supports in a container and rotating a stirring device and/or the container, a stirring period in which the relative position among the plurality of granular supports are changed and a non-stirring period in which the relative position among the plurality of granular supports are not changed being altered by the rotating, wherein the decompression device comprises, an evaporation source for evaporating elements to form an alloy particle, the container for holding the plurality of granular supports in the decompression device so that a relative position among granular supports is able to be changed, a rotating device for rotating the container and the stirring device disposed in tType: ApplicationFiled: August 28, 2008Publication date: March 12, 2009Inventors: Mutsuki YAMAZAKI, Kohei NAKAYAMA, Yoshihiko NAKANO, Wu Mei