Patents by Inventor Haruhisa Wada
Haruhisa Wada 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: 10030634Abstract: A wind power generation system according to an embodiment includes a blade; a lightning protection device; an electric device; a voltage application mechanism; a first lightning arrester element; and a second lightning arrester element. The lightning protection device includes a receptor provided at the blade and guides a current of lightning to the ground from the receptor via a lightning conductor. The electric device is installed at the blade and includes a first electric conductor and a second electric conductor provided apart from each other. The voltage application mechanism applies a voltage between the first electric conductor and the second electric conductor. The first lightning arrester element has one end thereof electrically connected to the first electric conductor and has the other end thereof grounded. The second lightning arrester element has one end thereof electrically connected to the second electric conductor and has the other end thereof grounded.Type: GrantFiled: March 21, 2016Date of Patent: July 24, 2018Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Motofumi Tanaka, Shinya Nakayama, Haruhisa Wada, Naoto Shinohara, Shigeo Maezawa, Toshiki Osako, Satoshi Hanai
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Publication number: 20160290321Abstract: A wind power generation system according to an embodiment includes a blade; a lightning protection device; an electric device; a voltage application mechanism; a first lightning arrester element; and a second lightning arrester element. The lightning protection device includes a receptor provided at the blade and guides a current of lightning to the ground from the receptor via a lightning conductor. The electric device is installed at the blade and includes a first electric conductor and a second electric conductor provided apart from each other. The voltage application mechanism applies a voltage between the first electric conductor and the second electric conductor. The first lightning arrester element has one end thereof electrically connected to the first electric conductor and has the other end thereof grounded. The second lightning arrester element has one end thereof electrically connected to the second electric conductor and has the other end thereof grounded.Type: ApplicationFiled: March 21, 2016Publication date: October 6, 2016Applicant: Kabushiki Kaisha ToshibaInventors: Motofumi TANAKA, Shinya NAKAYAMA, Haruhisa WADA, Naoto SHINOHARA, Shigeo MAEZAWA, Toshiki OSAKO, Satoshi HANAI
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Patent number: 8358217Abstract: A stationary induction apparatus has: a winding to which AC current is supplied; an electrostatic shield which includes an electrostatic shield member having a hollow and an electrically conductive film wound around the electrostatic shield member, and which is configured to suppress the electric field of the winding; a housing which contains the winding, the electrostatic shield and the insulating fluid; an IC tag which has a sensor arranged in the hollow of the electrostatic shield member and configured to detect position of the electrostatic shield member, and a transmitter unit configured to transmit, by radio, information acquired by the sensor as a high-frequency signal having a frequency much higher than the frequency of the AC current; and a receiver unit which is arranged in the housing, receives the high-frequency signal transmitted by radio from the IC tag and transmits, by wire, the signal outside the housing.Type: GrantFiled: February 19, 2008Date of Patent: January 22, 2013Assignee: Kabushiki Kaisha ToshibaInventors: Haruhisa Wada, Masaki Sugihara, Masahiro Hanai
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Patent number: 7868755Abstract: To shorten a period of time necessary for performing routine inspections and reduce costs by monitoring a state such as a contact failure of a switching equipment which constitutes a power reception circuit or a branch circuit of a substation through a simple construction. A sensor attached IC tag application high voltage equipment is constructed by detachably mounting a sensor attached IC tag at a position where a sensor of a sensor attached IC tag obtains a physical quantity of a detection target, wherein the sensor attached IC tag is configured to communicate with an externally located IC tag reader.Type: GrantFiled: October 5, 2007Date of Patent: January 11, 2011Assignee: Kabushiki Kaisha ToshibaInventors: Masahiro Hanai, Haruhisa Wada, Hirokazu Takagi, Shiro Maruyama, Masayuki Sato
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Publication number: 20110000772Abstract: A power switchgear having an action monitoring function by an IC tag with a sensor includes: a main body including a switching section carrying out switching action; an operating mechanism including a switching operation section mechanically connected to the switching section so as to carry out switching operation of the switching section; and an action monitoring section monitoring an action of the switching operation section and wirelessly communicating with an external equipment. The action monitoring section includes an IC tag with sensor attached to a portion of the switching operation section and a case surrounding at least a portion of the switching operation section including the IC tag with a sensor.Type: ApplicationFiled: October 15, 2007Publication date: January 6, 2011Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Masahiro Hanai, Haruhisa Wada, Shiro Maruyama
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Publication number: 20080197977Abstract: A stationary induction apparatus has: a winding to which AC current is supplied; an electrostatic shield which includes an electrostatic shield member having a hollow and an electrically conductive film wound around the electrostatic shield member, and which is configured to suppress the electric field of the winding; a housing which contains the winding, the electrostatic shield and the insulating fluid; an IC tag which has a sensor arranged in the hollow of the electrostatic shield member and configured to detect position of the electrostatic shield member, and a transmitter unit configured to transmit, by radio, information acquired by the sensor as a high-frequency signal having a frequency much higher than the frequency of the AC current; and a receiver unit which is arranged in the housing, receives the high-frequency signal transmitted by radio from the IC tag and transmits, by wire, the signal outside the housing.Type: ApplicationFiled: February 19, 2008Publication date: August 21, 2008Inventors: Haruhisa Wada, Masaki Sugihara, Masahiro Hanai
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Publication number: 20080087115Abstract: To shorten a period of time necessary for performing routine inspections and reduce costs by monitoring a state such as a contact failure of a switching equipment which constitutes a power reception circuit or a branch circuit of a substation through a simple construction. A sensor attached IC tag application high voltage equipment is constructed by detachably mounting a sensor attached IC tag at a position where a sensor of a sensor attached IC tag obtains a physical quantity of a detection target, wherein the sensor attached IC tag is configured to communicate with an externally located IC tag reader.Type: ApplicationFiled: October 5, 2007Publication date: April 17, 2008Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Masahiro Hanai, Haruhisa Wada, Hirokazu Takagi, Shiro Maruyama, Masayuki Sato