Patents by Inventor Mitsuhiro Sakoyama
Mitsuhiro Sakoyama 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: 9354258Abstract: A device including: a conductor through which a current to be measured flows; multiple coils arranged around the conductor; a first magnetic body provided to face one of end surfaces of each of the multiple coils and configured to magnetically short-circuit the multiple coils; and a second magnetic body provided to face another one of the end surfaces of each of the multiple coils, configured to magnetically short-circuit the multiple coils, and including through-holes through which coil wires from the multiple coils are passed, respectively, the through-holes being provided at positions facing the other end surfaces of the multiple coils, respectively.Type: GrantFiled: December 2, 2011Date of Patent: May 31, 2016Assignee: Toshiba Toko Meter Systems Co., Ltd.Inventors: Shinichi Ryochi, Mitsuhiro Sakoyama, Fuyuki Kurokawa, Tatsuya Kimura
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Publication number: 20140111190Abstract: A device including: a conductor through which a current to be measured flows; multiple coils arranged around the conductor; a first magnetic body provided to face one of end surfaces of each of the multiple coils and configured to magnetically short-circuit the multiple coils; and a second magnetic body provided to face another one of the end surfaces of each of the multiple coils, configured to magnetically short-circuit the multiple coils, and including through-holes through which coil wires from the multiple coils are passed, respectively, the through-holes being provided at positions facing the other end surfaces of the multiple coils, respectively.Type: ApplicationFiled: December 2, 2011Publication date: April 24, 2014Applicant: Toshiba Toko Meter Systems Co., Ltd.Inventors: Shinichi Ryochi, Mitsuhiro Sakoyama, Fuyuki Kurokawa, Tatsuya Kimura
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Patent number: 8433529Abstract: In a watt-hour meter, encoders 116, 117, 118 and 119 respectively convert a signal concerning a current and voltage used by a customer into a code sequence signal by Reed-Solomon codes or convolutional codes. Decoders 121, 122, 123, and 124 reversely convert the code sequence signal to the signal concerning the current and voltage. A power calculating section 125 converts the signal concerning the current and voltage into data concerning electricity consumption.Type: GrantFiled: February 25, 2009Date of Patent: April 30, 2013Assignee: Toshiba Toko Meter Systems Co., Ltd.Inventors: Kenji Nakano, Yoshito Sameda, Yukio Takanohashi, Tadanori Maoka, Mitsuhiro Sakoyama, Fuyuki Kurokawa
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Patent number: 8217643Abstract: A current detector includes a plate conductor (4) that is folded in one portion in a longitudinal direction to have two parts parallel to and facing each other having a predetermined width (w1) therebetween, so as to compose a looped current path (2a) in the conductor, and a magneto-electric transducer (2) that is placed between the two parts of the conductor (4; 4a, 4b) so that a magnetic sensing axis is parallel to a width direction of the conductor (4), of which a length (a) in a direction of the magnetic sensing axis is smaller than the width (w1) of the conductor.Type: GrantFiled: February 26, 2009Date of Patent: July 10, 2012Assignee: Toshiba Toko Meter Systems Co., Ltd.Inventors: Yuta Kuroki, Fuyuki Kurokawa, Mitsuhiro Sakoyama
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Patent number: 7919960Abstract: An electricity meter capable of minimizing a risk of data destruction in case of lightning or surge that involves improperly high voltage is provided. The electricity meter includes a measurement part, an operation part, and an insulation part. The measurement part includes a detection unit to detect electricity consumption of an objective system and a transmission unit to wirelessly transmit data representative of the detected electricity consumption. The operation part includes a reception unit to receive the wirelessly transmitted data and an operation unit to process the received data into data representative of electric energy consumed by the objective system. The insulation part electrically insulates the measurement part and operation part from each other.Type: GrantFiled: November 20, 2008Date of Patent: April 5, 2011Assignee: Toshiba Toko Meter Systems Co., Ltd.Inventors: Yukio Takanohashi, Yoshito Sameda, Kenji Nakano, Tadanori Maoka, Fuyuki Kurokawa, Mitsuhiro Sakoyama
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Publication number: 20110012590Abstract: A current detector includes a plate conductor (4) that is folded in one portion in a longitudinal direction to have two parts parallel to and facing each other having a predetermined width (w1) therebetween, so as to compose a looped current path (2a) in the conductor, and a magneto-electric transducer (2) that is placed between the two parts of the conductor (4; 4a, 4b) so that a magnetic sensing axis is parallel to a width direction of the conductor (4), of which a length (a) in a direction of the magnetic sensing axis is smaller than the width (w1) of the conductor.Type: ApplicationFiled: February 26, 2009Publication date: January 20, 2011Applicant: TOSHIBA TOKO METER SYSTEMS CO., LTD.Inventors: Yuta Kuroki, Fuyuki Kurokawa, Mitsuhiro Sakoyama
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Publication number: 20090248330Abstract: In a watt-hour meter, encoders 116, 117, 118 and 119 respectively convert a signal concerning a current and voltage used by a customer into a code sequence signal by Reed-Solomon codes or convolutional codes. Decoders 121, 122, 123, and 124 reversely convert the code sequence signal to the signal concerning the current and voltage. A power calculating section 125 converts the signal concerning the current and voltage into data concerning electricity consumption.Type: ApplicationFiled: February 25, 2009Publication date: October 1, 2009Applicant: Kabushiki Kaisha ToshibaInventors: Kenji NAKANO, Yoshito Sameda, Yukio Takanohashi, Tadanori Maoka, Mitsuhiro Sakoyama, Fuyuki Kurokawa
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Publication number: 20090134863Abstract: An electricity meter capable of minimizing a risk of data destruction in case of lightning or surge that involves improperly high voltage is provided. The electricity meter includes a measurement part, an operation part, and an insulation part. The measurement part includes a detection unit to detect electricity consumption of an objective system and a transmission unit to wirelessly transmit data representative of the detected electricity consumption. The operation part includes a reception unit to receive the wirelessly transmitted data and an operation unit to process the received data into data representative of electric energy consumed by the objective system. The insulation part electrically insulates the measurement part and operation part from each other.Type: ApplicationFiled: November 20, 2008Publication date: May 28, 2009Applicant: Kabushiki Kaisha ToshibaInventors: Yukio TAKANOHASHI, Yoshito Sameda, Kenji Nakano, Tadanori Maoka, Fuyuki Kurokawa, Mitsuhiro Sakoyama
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Patent number: 5248935Abstract: An electronic type watthour measuring apparatus equipped with an automatic measuring-error correcting circuit.Type: GrantFiled: February 21, 1992Date of Patent: September 28, 1993Assignee: Kabushiki Kaisha ToshibaInventors: Mitsuhiro Sakoyama, Masaharu Takeda, Naohide Suzuki