Patents by Inventor Shuichi Obayashi
Shuichi Obayashi 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: 9608453Abstract: There is provided a power transmitting apparatus including: a power supply, a power transmitting inductor, a mutual coupling adjusting unit and a control unit, in which the power supply supplies AC power, the power transmitting inductor transfers the AC power to a power receiving apparatus through magnetic coupling with a power receiving inductor in the power receiving apparatus, the mutual coupling adjusting unit adjusts a relative position between the power transmitting inductor and the power receiving inductor, and the control unit controls the mutual coupling adjusting unit, based on a mutual coupling coefficient between the power transmitting inductor and the power receiving inductor.Type: GrantFiled: January 10, 2013Date of Patent: March 28, 2017Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Tetsu Shijo, Akiko Yamada, Kohei Onizuka, Fumi Moritsuka, Hiroaki Ishihara, Noriaki Oodachi, Shuichi Obayashi, Hiroki Kudo, Kenichirou Ogawa, Shoji Otaka, Hiroki Shoki
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Publication number: 20170012477Abstract: An inductor unit according to one embodiment includes a first inductor comprising a first core and a first winding wound around the first core; and a second inductor comprising a second core and a second winding wound around the second core. The first inductor and the second inductor are disposed so that an angle is larger than 0 degree and smaller than 90 degrees. The angle is formed by: a first straight line coupling a first intersection point of a first center line in parallel with a first magnetic flux direction of the first core and a second center line perpendicular to the first magnetic flux direction, and a second intersection point of a third center line in parallel with the second magnetic flux direction of the second core and a fourth center line perpendicular to the second magnetic flux direction; and the first center line.Type: ApplicationFiled: September 13, 2016Publication date: January 12, 2017Inventors: Tetsu SHIJO, Kenichirou OGAWA, Akiko YAMADA, Noriaki OODACHI, Shuichi OBAYASHI
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Publication number: 20170005528Abstract: A power transmission device according to one embodiment, includes a first power transmission resonator configured to wirelessly transmits power; a second power transmission resonator configured to wirelessly transmits power; a first power supply configured to output AC power to the first power transmission resonator; and a second power supply configured to output AC power having a frequency different from that of the first power supply to the second power transmission resonator. An operating band of the first power transmission resonator includes the frequency of the first power supply and does not include the frequency of the second power supply. An operating band of the second power transmission resonator does not include the frequency of the first power supply and includes the frequency of the second power supply.Type: ApplicationFiled: September 19, 2016Publication date: January 5, 2017Inventors: Noriaki OODACHI, Shuichi OBAYASHI
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Publication number: 20170004916Abstract: An inductor according to one embodiment includes a magnetic core, a case, a winding, and a resin. The case is configured to house the magnetic core. The winding is configured to be wound around the case. The resin is configured to be formed of a first resin to cover the case and the winding. A difference between an inside dimension of the case and a dimension of the magnetic core in the same direction is greater than a variation of a dimension of the case in the direction when forming the resin.Type: ApplicationFiled: September 15, 2016Publication date: January 5, 2017Inventors: Tetsu SHIJO, Akiko YAMADA, Shuichi Obayashi
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Patent number: 9431166Abstract: According to an embodiment, there is an inductor, including: a magnetic core; a winding formed around the magnetic core; a first resin provided between turns of the winding; and a second resin covering the winding and the first resin, wherein the second resin has higher filler content than the first resin.Type: GrantFiled: March 4, 2014Date of Patent: August 30, 2016Assignee: Kabushiki Kaisha ToshibaInventors: Tetsu Shijo, Tetsushi Okamoto, Masahiro Sakai, Satoshi Hiroshima, Shuichi Obayashi, Akiko Yamada
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Publication number: 20160221461Abstract: According to one embodiment, a mobile machine includes a mobile body and a plurality of power transmission resonators. The mobile body is capable of being tilted in a particular direction such that a distance between a particular part opposed to a travel surface and the travel surface is reduced. The plurality of power transmission resonators are arranged at portions of the particular part of the mobile body, heights of the portions with reference to the travel surface being approximately identical with each other in a state of the mobile body being tilted.Type: ApplicationFiled: April 8, 2016Publication date: August 4, 2016Inventors: Shuichi OBAYASHI, Noriaki OODACHI, Tetsu SHIJO, Kenichirou OGAWA
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Patent number: 9369216Abstract: According to one embodiment, a communication apparatus includes a substrate, a communication circuit, a first signal line, an insulator, and a first conductor. The substrate includes a ground. The communication circuit is provided on the substrate. The first signal line is connected to the communication circuit and is electrically connected to the outer surface of the first conductor. The insulator surrounds the substrate. The first conductor surrounds the insulator.Type: GrantFiled: September 17, 2013Date of Patent: June 14, 2016Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Takafumi Ohishi, Kazuhiro Inoue, Shuichi Obayashi
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Patent number: 9331371Abstract: There is provided a waveguide connecting structure, including first, second, third and fourth waveguides. A first coupling window at one of magnetic field planes of the third waveguide couples the first and third waveguides in such a manner that the electric field planes of both are in parallel. A second coupling window formed at one of the electric field planes of the third waveguide couples the second and third waveguides in such a manner that the electric field planes of the second waveguide is in parallel with the magnetic field planes of the first waveguide. A third coupling window formed at the other one of the electric field planes couples the fourth and third waveguides in such a manner that the electric field planes of the fourth waveguide is in parallel with the magnetic field planes of the first waveguide.Type: GrantFiled: July 11, 2013Date of Patent: May 3, 2016Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Tetsu Shijo, Koh Hashimoto, Shuichi Obayashi
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Patent number: 9322853Abstract: An antenna device of an embodiment includes: an antenna; a variable impedance matching circuit that is connected to the antenna; a probe that receives power from the antenna; a power detector that is connected to the probe; a control circuit controlling the variable impedance matching circuit based on a value of power measured by the power detector; a first arithmetic circuit calculating a variation in the value of power measured by the power detector; a comparator circuit that compares the variation with a predetermined numerical value range; and a starter circuit that activates the control circuit based on a result of the comparison performed by the comparator circuit.Type: GrantFiled: June 27, 2014Date of Patent: April 26, 2016Assignee: Kabushiki Kaisha ToshibaInventors: Makoto Higaki, Shuichi Obayashi
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Patent number: 9245866Abstract: According to one embodiment, an antenna device includes a feeding portion, first and second wire-like metal portions, third and fourth plate-like metal portions and a fifth metal portion. One ends of the first and second wire-like metal portions are connected to the feeding portion. The third and fourth plate-like metal portions are respectively connected to the other ends of the first and second metal portions and disposed separately from each other with a predetermined distance therebetween. The fifth metal portion is configured to connect the third metal portion to the fourth metal portion. A total electrical length of the first to fifth metal portions is 3/2 wavelength at operating frequency band.Type: GrantFiled: July 5, 2012Date of Patent: January 26, 2016Assignee: Kabushiki Kaisha ToshibaInventors: Yukako Tsutsumi, Takayoshi Ito, Shuichi Obayashi
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Publication number: 20160006259Abstract: A power transmission system according to an embodiment includes a transmitting device and a receiving device. The transmitting (receiving) device includes a transmitting (receiving) housing and a transmitting (receiving) coil. The transmitting (receiving) housing includes a first transmitting (receiving) surface and a second transmitting (receiving) surface. The transmitting (receiving) coil includes a first transmitting (receiving) part and a second transmitting (receiving) part. A first facing area and a second facing area at the reference position are set such that change of strength of magnetic coupling between the transmitting coil and the receiving coil of when the receiving device is moved in a direction perpendicular to the first transmitting surface becomes smaller than change of strength of magnetic coupling between the transmitting coil and the receiving coil of when the receiving device is moved in a direction perpendicular to the second transmitting surface.Type: ApplicationFiled: May 27, 2015Publication date: January 7, 2016Inventors: Kenichirou OGAWA, Noriaki OODACHI, Shuichi OBAYASHI, Hiroki SHOKI
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Patent number: 9184492Abstract: According to one embodiment, a radio device includes: a mounting board having a conductive plane; a semiconductor package mounted on the mounting board and having a interposer having a conductive plane, a semiconductor chip mounted on one surface of the interposer, and an antenna having a conductive element formed on the one surface and connected to the semiconductor chip; and a plurality of connection portions connecting the mounting board and the interposer. A first electrical length of the first connection portion which is nearest the conductive element among the plurality of connection portions or a second electrical length of the first connection portion including a conductive plane of the mounting board or interposer connected to the first connection portion is less than ½ wavelength of the operating frequency of the antenna.Type: GrantFiled: July 8, 2011Date of Patent: November 10, 2015Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Yukako Tsutsumi, Hiroki Shoki, Shuichi Obayashi
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Publication number: 20150246617Abstract: In one embodiment, a power receiving device includes a power receiving inductor wirelessly receiving electric power from a power transmitting device, a capacitor unit connected to the power receiving inductor, a communication unit exchanging a power transmission status or a power reception status with the power transmitting device, a sensor unit performing at least one of received power detection, foreign object detection, and temperature detection, and a control unit controlling received power based on information received by the communication unit or a result of the detection performed by the sensor unit. The power receiving inductor includes a magnetic core, a coil winding, and a conductor plate. The magnetic core is provided in a detachable unit detachably attached to a housing of the power receiving device. The sensor unit is provided outside the detachable unit.Type: ApplicationFiled: May 18, 2015Publication date: September 3, 2015Applicant: Kabushiki Kaisha ToshibaInventors: Tetsu SHIJO, Akiko Yamada, Shuichi Obayashi
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Publication number: 20150222023Abstract: According to one embodiment, an antenna apparatus includes a waveguide is formed one or more first array elements and one or more second array element, each of the one or more first array elements being formed at a position where a coupling power ratio is no less than a threshold and including a first slot and at least one reflection suppressing element which suppresses a reflection from the first slot, each of the one or more second array elements being formed at a position where the coupling power ratio is less than the threshold and including a second slot and a third slot, the coupling power ratio indicating a ratio of an electric power supplied to each of the first and second array element to an electric power of electromagnetic wave radiated from the each of the first and second array element.Type: ApplicationFiled: February 4, 2015Publication date: August 6, 2015Applicant: Kabushiki Kaisha ToshibaInventors: Tetsu SHIJO, Shuichi OBAYASHI
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Patent number: 9014629Abstract: According to an embodiment, the first signal line is provided on the substrate and has one end connected to the communication unit. The coaxial line is provided by a surface side of the substrate and includes second and third signal lines. The third signal line is provided at an outside of the second signal line through a dielectric. One end of the second signal line is connected to the other end of the first signal line. One end of the third signal line is connected to the ground electrode though a via. The electrode unit includes a reference potential electrode and a signal electrode. The signal electrode is provided around the reference potential electrode with a space left in between. The reference potential electrode is connected to the other end of the third signal line whereas the signal electrode is connected to the other end of the second signal line.Type: GrantFiled: November 1, 2013Date of Patent: April 21, 2015Assignee: Kabushiki Kaisha ToshibaInventors: Masanori Kurata, Takafumi Ohishi, Shuichi Obayashi
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Patent number: 8970347Abstract: In one embodiment, a human body communication apparatus includes a first human body communication terminal carried by a person, a second human body communication terminal and an authentication unit included in the first or second human body communication terminal. The first human body communication terminal includes a first detection unit to detect first living body physiological information of the carrying person. The second human body communication terminal includes a human body contact sensor and a second detection unit to detect second living body physiological information of the person who touches the human body contact sensor. The authentication unit acquires the first and second living body physiological information and determines a correlation between the first and second living body physiological information to permit communication between the first and second human body communication terminals in accordance with the correlation.Type: GrantFiled: March 18, 2011Date of Patent: March 3, 2015Assignee: Kabushiki Kaisha ToshibaInventors: Takashi Ueno, Takafumi Ohishi, Shuichi Obayashi, Ichiro Seto, Toshitada Saito
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Publication number: 20150031420Abstract: An antenna device of an embodiment includes: an antenna; a variable impedance matching circuit that is connected to the antenna; a probe that receives power from the antenna; a power detector that is connected to the probe; a control circuit controlling the variable impedance matching circuit based on a value of power measured by the power detector; a first arithmetic circuit calculating a variation in the value of power measured by the power detector; a comparator circuit that compares the variation with a predetermined numerical value range; and a starter circuit that activates the control circuit based on a result of the comparison performed by the comparator circuit.Type: ApplicationFiled: June 27, 2014Publication date: January 29, 2015Inventors: Makoto HIGAKI, Shuichi Obayashi
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Publication number: 20150001955Abstract: According to one embodiment, there is provided a power transmitting device including: a power supply, a resonator, an adjuster and a controller. The power supply supplies AC power. The resonator includes a magnetic core and a coil wound around the magnetic core, the resonator wirelessly transmitting the AC power supplied from the power supply to a different resonator arranged to be opposed to the resonator. The adjuster relatively moves the coil and the magnetic core along a longitudinal direction of the coil. The controller controls the adjuster based on a value of current flowing in the resonator to adjust relative positions of the magnetic core and the coil.Type: ApplicationFiled: June 25, 2014Publication date: January 1, 2015Inventors: Akiko Yamada, Tetsu Shijo, Shuichi Obayashi, Hiroaki Ishihara, Kohei Onizuka, Kenichirou Ogawa, Fumi Moritsuka, Hiroki Kudo, Noriaki Oodachi
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Publication number: 20140361632Abstract: There is provided a leakage preventing device of electromagnetic wave for a first resonator to perform wireless power transmission with a second resonator. A first conductor plate is provided on a first side of the first resonator, the first side being an opposite side of a second side where the first resonator is opposed to the second resonator. First and second conductive objects are connectable to the first conductor plate at first ends and electrically connectable to a second conductor plate at a second ends respectively. The second conductor plate is provided on a third side of the second resonator. The third side of the second resonator is an opposite side of a fourth side of the second resonator where the second resonator is opposed to the first resonator. The first and second conductive objects form a conductive loop together with the first conductor plate and the second conductor plate.Type: ApplicationFiled: June 9, 2014Publication date: December 11, 2014Inventors: Shuichi OBAYASHI, Tetsu SHIJO, Makoto HIGAKI
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Patent number: 8847827Abstract: In one embodiment, a communication apparatus includes a substrate, an antenna disposed on the substrate, a first communication part transmitting or receiving a signal at a predetermined frequency via the antenna, a first conductor plate, a terminal disposed on the substrate and connected to the first conductor plate by a conductor line, a second communication part disposed on the substrate, connected electrically to the terminal, and communicating with a communication partner via the first conductor plate, and a second conductor plate connected electrically to the conductor line and having a length of substantially ¼ of the wavelength of the predetermined frequency.Type: GrantFiled: January 30, 2012Date of Patent: September 30, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Takafumi Ohishi, Noriaki Oodachi, Shuichi Obayashi