Patents by Inventor Masahisa Kaneta
Masahisa Kaneta 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: 9905935Abstract: An antenna device includes a transmission line for propagating high frequency signal, and a plurality of antenna elements connected to the transmission line. The transmission line includes a first plate-shaped conductor, a second plate-shaped conductor, and a third plate-shaped conductor electrically grounded, a first central conductor disposed between the first and second plate-shaped conductors, a second central conductor disposed between the second and third plate-shaped conductors, an electrically connecting member inserted in an inserting hole formed through the second plate-shaped conductor, to electrically connect the first and second central conductors together, and an electrically grounded conductor disposed adjacent to the electrically connecting member.Type: GrantFiled: November 25, 2015Date of Patent: February 27, 2018Assignee: HITACHI METALS, LTD.Inventors: Naoki Iso, Masahisa Kaneta, Nobuaki Kitano, Tomoyuki Ogawa, Tsukasa Fujishima
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Patent number: 9640860Abstract: An antenna device includes a center substrate including a dielectric substrate and a center conductor on the dielectric substrate, and two ground plates sandwiching via an air layer the center substrate therebetween to form a feeder line. A hole is formed in the dielectric substrate on at least one side of the center conductor along a longitudinal direction of the center conductor.Type: GrantFiled: January 16, 2015Date of Patent: May 2, 2017Assignee: HITACHI METALS, LTD.Inventors: Naoki Iso, Nobuaki Kitano, Masahisa Kaneta, Tomoyuki Ogawa
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Publication number: 20170040699Abstract: In an antenna device including an antenna element and a feeder line to supply power to the antenna element, the antenna device includes: a front surface feeder line and a rear surface feeder line on front and rear surfaces of a substrate; opposing upper-side and lower-side ground plates across the substrate; a coaxial cable including a center conductor connected to the front surface feeder line and the rear surface feeder line and an outer conductor connected to the upper-side ground plate; and a center conductor connection fitting including a substrate connection portion inserted between the upper-side ground plate and the lower-side ground plate and a first cable connection portion protruding to outside of the upper-side ground plate. First connection pieces of the substrate connection portion are connected to the front surface feeder line, and a second connection piece is connected to the rear surface feeder line.Type: ApplicationFiled: December 10, 2015Publication date: February 9, 2017Inventors: Naoki ISO, Masahisa KANETA, Nobuaki KITANO, Tomoyuki OGAWA, Tsukasa FUJISHIMA, Yoshiaki ISHIGAMI
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Patent number: 9559418Abstract: A phase shifter includes dielectric members including facing portions facing a signal line formed on a surface of a substrate and being made of a dielectric material, a supporting member configured to support the dielectric members and receive a moving force for moving the dielectric members in a direction which is parallel to the substrate and crosses the signal line, and a moving mechanism configured to apply the moving force to the supporting member. At least either the dielectric members or the supporting member is provided with a protrusion configured to keep a distance between the facing portions of the dielectric members and the signal line.Type: GrantFiled: May 14, 2015Date of Patent: January 31, 2017Assignee: HITACHI METALS, LTD.Inventors: Naoki Iso, Yoshiaki Ishigami, Masahisa Kaneta, Nobuaki Kitano, Tomoyuki Ogawa, Tsukasa Fujishima
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Patent number: 9520629Abstract: A phase-shift circuit being smaller in size than a conventional phase-shift circuit and being capable of causing a phase difference equivalent to or larger than that in the conventional phase-shift circuit between an input signal and an output signal is achieved. A phase-shift circuit includes: a signal line; and a dielectric member overlapping the signal line and being capable of reciprocating in a direction intersecting the signal line, and changes a phase of a signal propagating through the signal line. The dielectric member is configured of a frame body and a dielectric plate provided inside the frame body and having an overlapping area with the signal line increased or decreased by the reciprocation, and the frame body has a permittivity lower than a permittivity of the dielectric plate.Type: GrantFiled: May 18, 2015Date of Patent: December 13, 2016Assignee: Hitachi Metals, Ltd.Inventors: Naoki Iso, Masahisa Kaneta, Nobuaki Kitano, Tomoyuki Ogawa, Yoshiaki Ishigami
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Publication number: 20160248167Abstract: An antenna device includes a transmission line for propagating high frequency signal, and a plurality of antenna elements connected to the transmission line. The transmission line includes a first plate-shaped conductor, a second plate-shaped conductor, and a third plate-shaped conductor electrically grounded, a first central conductor disposed between the first and second plate-shaped conductors, a second central conductor disposed between the second and third plate-shaped conductors, an electrically connecting member inserted in an inserting hole formed through the second plate-shaped conductor, to electrically connect the first and second central conductors together, and an electrically grounded conductor disposed adjacent to the electrically connecting member.Type: ApplicationFiled: November 25, 2015Publication date: August 25, 2016Applicant: HITACHI METALS, LTD.Inventors: Naoki ISO, Masahisa Kaneta, Nobuaki Kitano, Tomoyuki Ogawa, Tsukasa Fujishima
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Publication number: 20160013532Abstract: A phase shifter includes dielectric members including facing portions facing a signal line formed on a surface of a substrate and being made of a dielectric material, a supporting member configured to support the dielectric members and receive a moving force for moving the dielectric members in a direction which is parallel to the substrate and crosses the signal line, and a moving mechanism configured to apply the moving force to the supporting member. At least either the dielectric members or the supporting member is provided with a protrusion configured to keep a distance between the facing portions of the dielectric members and the signal line.Type: ApplicationFiled: May 14, 2015Publication date: January 14, 2016Inventors: Naoki ISO, Yoshiaki ISHIGAMI, Masahisa KANETA, Nobuaki KITANO, Tomoyuki OGAWA, Tsukasa FUJISHIMA
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Publication number: 20150357696Abstract: A phase-shift circuit being smaller in size than a conventional phase-shift circuit and being capable of causing a phase difference equivalent to or larger than that in the conventional phase-shift circuit between an input signal and an output signal is achieved. A phase-shift circuit includes: a signal line; and a dielectric member overlapping the signal line and being capable of reciprocating in a direction intersecting the signal line, and changes a phase of a signal propagating through the signal line. The dielectric member is configured of a frame body and a dielectric plate provided inside the frame body and having an overlapping area with the signal line increased or decreased by the reciprocation, and the frame body has a permittivity lower than a permittivity of the dielectric plate.Type: ApplicationFiled: May 18, 2015Publication date: December 10, 2015Inventors: Naoki ISO, Masahisa KANETA, Nobuaki KITANO, Tomoyuki OGAWA, Yoshiaki ISHIGAMI
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Publication number: 20150207221Abstract: An antenna device includes a center substrate including a dielectric substrate and a center conductor on the dielectric substrate, and two ground plates sandwiching via an air layer the center substrate therebetween to form a feeder line. A hole is formed in the dielectric substrate on at least one side of the center conductor along a longitudinal direction of the center conductor.Type: ApplicationFiled: January 16, 2015Publication date: July 23, 2015Inventors: Naoki ISO, Nobuaki KITANO, Masahisa KANETA, Tomoyuki OGAWA
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Patent number: 5712796Abstract: The faulted sections are evaluated by calculating the measuring information resulted from the faults in various positions by the previous fault simulative calculation, introducing the resulting fault simulative measuring information into a self-organizing neural network having output elements of which number being more than that of input elements to permit the self-organizing neural network to learn the classification of the simulative measuring information, preparing an evaluation rule representing the correspondent relation between the output from the classification of the stimulative measuring information and the faulted position, thereafter introducing actual measured information into the self-organizing neural network to permit the self-organizing neural network to classify the introduced actual measured information, and evaluating the faulted section from an output classified by the self-organized neural network on the basis of the evaluation rule.Type: GrantFiled: July 12, 1995Date of Patent: January 27, 1998Assignee: Hitachi Cable, Ltd.Inventors: Kazutaka Ohura, Ryouji Matsubara, Masahisa Kaneta