Patents by Inventor Satoshi Hiroshima
Satoshi Hiroshima 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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Publication number: 20230349965Abstract: A partial discharge measurement system comprising: at least one sensor configured to detect a voltage signal propagating through a conductor connected to a rotating electrical machine in a non-contact manner; a first bandpass filter through which a component of a first frequency included in the voltage signal acquired by the sensor passes; a second bandpass filter through which a component of a second frequency included in the voltage signal acquired by the sensor passes, the second frequency being lower than the first frequency; a phase acquirer configured to acquire a phase waveform of the component of the second frequency having passed through the second bandpass filter; and an output interface configured to output information by which a component of partial discharge of the rotating electrical machine included in the component of the first frequency having passed through the first bandpass filter can be identified based on the phase waveform.Type: ApplicationFiled: July 7, 2023Publication date: November 2, 2023Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Makoto TAKANEZAWA, Takashi HARAKAWA, Akira FUJIMOTO, Satoshi HIROSHIMA
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Patent number: 11579180Abstract: According to one embodiment, an insulation diagnostic system comprising: a peak-value acquisition circuit configured to acquire at least one peak value of a section corresponding to local discharge of a voltage signal acquired by at least one sensor that detects the voltage signal in a non-contact manner; a function acquisition circuit configured to acquire a calculation function for calculating charge amount related to the discharge based on at least two peak values acquired from the voltage signal that is detected by the sensor by applying a test voltage to a rotating electrical machine while the rotating electrical machine is stopped; and a charge-amount calculation circuit configured to calculate the charge amount related to partial discharge of the rotating electrical machine based on the calculation function and the peak value obtained from the voltage signal that is detected by the sensor during operation of the rotating electrical machine.Type: GrantFiled: December 27, 2021Date of Patent: February 14, 2023Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS COPORATIONInventors: Takashi Harakawa, Makoto Takanezawa, Akira Fujimoto, Satoshi Hiroshima, Kazunori Shioda
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Patent number: 11471770Abstract: A game server 30 includes: a processing unit 38 that deletes an item obtained by a user and increases the value of a parameter on the basis of an experience value of the deleted item when a condition preset by the user is satisfied; an item box 35 that stores the item obtained by the user when the condition is not satisfied; and a present box 36 that stores the item obtained by the user when the condition is not satisfied and the number of items stored in the item box 35 has reached an upper-limit value.Type: GrantFiled: January 22, 2021Date of Patent: October 18, 2022Assignee: CYGAMES, INC.Inventors: Kodai Wada, Kunihiko Matsuda, Satoshi Hiroshima
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Publication number: 20220221501Abstract: According to one embodiment, an insulation diagnostic system comprising: a peak-value acquisition circuit configured to acquire at least one peak value of a section corresponding to local discharge of a voltage signal acquired by at least one sensor that detects the voltage signal in a non-contact manner; a function acquisition circuit configured to acquire a calculation function for calculating charge amount related to the discharge based on at least two peak values acquired from the voltage signal that is detected by the sensor by applying a test voltage to a rotating electrical machine while the rotating electrical machine is stopped; and a charge-amount calculation circuit configured to calculate the charge amount related to partial discharge of the rotating electrical machine based on the calculation function and the peak value obtained from the voltage signal that is detected by the sensor during operation of the rotating electrical machine.Type: ApplicationFiled: December 27, 2021Publication date: July 14, 2022Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Takashi HARAKAWA, Makoto TAKANEZAWA, Akira FUJIMOTO, Satoshi HIROSHIMA, Kazunori SHIODA
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Publication number: 20220016523Abstract: An information processing system comprises a player terminal and a server, wherein the player terminal is configured to execute: transmission processing for transmitting action identification information corresponding to a selected action to the server on the basis of an input of a selecting operation for selecting one of a plurality of actions, the server is configured to execute: update processing for updating a parameter at least on the basis of the received action identification information; and setting rendering information at least on the basis of the received action identification information, the player terminal is further configured to execute: displaying an action image on a display on the basis of the received rendering information; and setting a terminal-side wait period on the basis of an input of a specific operation, and the player terminal does not execute the transmission processing during the terminal-side wait period.Type: ApplicationFiled: September 28, 2021Publication date: January 20, 2022Applicant: CYGAMES, INC.Inventors: Keita Ueda, Keisuke Kumagai, Satoshi Hiroshima
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Publication number: 20210138346Abstract: A game server 30 includes: a processing unit 38 that deletes an item obtained by a user and increases the value of a parameter on the basis of an experience value of the deleted item when a condition preset by the user is satisfied; an item box 35 that stores the item obtained by the user when the condition is not satisfied; and a present box 36 that stores the item obtained by the user when the condition is not satisfied and the number of items stored in the item box 35 has reached an upper-limit value.Type: ApplicationFiled: January 22, 2021Publication date: May 13, 2021Applicant: CYGAMES, INC.Inventors: Kodai Wada, Kunihiko Matsuda, Satoshi Hiroshima
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Patent number: 10444273Abstract: A partial discharge measurement device includes: an impulse voltage application unit; a measurement control unit; and first and second partial discharge detection unit. The measurement control unit includes: a first and a second detector level partial discharge counting unit; and a partial discharge resistance evaluation unit. Each of the first and the second detector level partial discharge counting units outputs a first or second detection signal when the first or second detection signal exceeds a predetermined specified value. The partial discharge resistance evaluation unit counts the number of occurrences of partial discharge based on an output from the first and second detector level partial discharge counting unit, and regards the impulse voltage value at which the count value has reached a predetermined value as a partial discharge inception voltage under the repeated impulse voltage application.Type: GrantFiled: April 21, 2015Date of Patent: October 15, 2019Assignees: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION, KABUSHIKI KAISHA TOSHIBA, TOSHIBA INDUSTRIAL PRODUCTS AND SYSTEMS CORPORATIONInventors: Tomomi Ikegami, Tetsuo Yoshimitsu, Takayuki Sakurai, Tatsuya Hirose, Satoshi Hiroshima, Yuji Yamamoto
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Publication number: 20170038424Abstract: A partial discharge measurement device includes: an impulse voltage application unit; a measurement control unit; and first and second partial discharge detection unit. The measurement control unit includes: a first and a second detector level partial discharge counting unit; and a partial discharge resistance evaluation unit. Each of the first and the second detector level partial discharge counting units outputs a first or second detection signal when the first or second detection signal exceeds a predetermined specified value. The partial discharge resistance evaluation unit counts the number of occurrences of partial discharge based on an output from the first and second detector level partial discharge counting unit, and regards the impulse voltage value at which the count value has reached a predetermined value as a partial discharge inception voltage under the repeated impulse voltage application.Type: ApplicationFiled: April 21, 2015Publication date: February 9, 2017Applicants: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION, Kabushiki Kaisha Toshiba, TOSHIBA INDUSTRIAL PRODUCTS AND SYSTEMS CORPORATIONInventors: Tomomi IKEGAMI, Tetsuo YOSHIMITSU, Takayuki SAKURAI, Tatsuya HIROSE, Satoshi HIROSHIMA, Yuji YAMAMOTO
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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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Patent number: 9322881Abstract: An impulse voltage generator uses a predetermined rectangular waveform signal and a high voltage to generate an impulse voltage. The high voltage is obtained by boosting an instruction voltage of the rectangular waveform signal on a per-cycle basis. A partial discharge frequency calculation section receives detection signals based on partial discharges occurring in an object to be measured by the application of the impulse voltage and counts the detection signal on a per-cycle basis as a partial discharge frequency. An application voltage signal observation circuit observes an application voltage signal indicating the impulse voltage applied to the object to be measured. In a first cycle in which the partial discharge frequency reaches a specified frequency or more, a voltage value acquiring section sets, as a partial discharge starting voltage, the peak value of the voltage indicated by the application voltage signal output from the application voltage signal observation circuit.Type: GrantFiled: March 13, 2013Date of Patent: April 26, 2016Assignees: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION, KABUSHIKI KAISHA TOSHIBAInventors: Takayuki Sakurai, Hiroyuki Ogawa, Tetsuo Yoshimitsu, Tatsuya Hirose, Satoshi Hiroshima
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Patent number: 9197201Abstract: A signal generator generates a combined signal that is generated only in the period where supply of a pulse signal is effected, a pulse signal whose frequency is of a higher impulse repetition frequency than the frequency of the period setting signal and whose amplitude represents a voltage value that is lower than the high voltage HVDC value. A semiconductor switch accumulates electric charge on a capacitative element by means of the high voltage HVDC from the high voltage generator when the voltage value of the combined signal is lower than the set gate voltage value and generates an impulse voltage whose peak value is the value of the high voltage HVDC, by means of the electric charge that is discharged from the capacitative element when the voltage value of the combined signal exceeds the set gate voltage value.Type: GrantFiled: June 3, 2014Date of Patent: November 24, 2015Assignees: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION, KABUSHIKI KAISHA TOSHIBAInventors: Hiroyuki Ogawa, Takayuki Sakurai, Tetsuo Yoshimitsu, Tatsuya Hirose, Satoshi Hiroshima, Masayuki Hikita, Masahiro Kozako, Takahisa Ueno
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Publication number: 20150015303Abstract: An impulse voltage generator uses a predetermined rectangular waveform signal and a high voltage to generate an impulse voltage. The high voltage is obtained by boosting an instruction voltage of the rectangular waveform signal on a per-cycle basis. A partial discharge frequency calculation section receives detection signals based on partial discharges occurring in an object to be measured by the application of the impulse voltage and counts the detection signal on a per-cycle basis as a partial discharge frequency. An application voltage signal observation circuit observes an application voltage signal indicating the impulse voltage applied to the object to be measured. In a first cycle in which the partial discharge frequency reaches a specified frequency or more, a voltage value acquiring section sets, as a partial discharge starting voltage, the peak value of the voltage indicated by the application voltage signal output from the application voltage signal observation circuit.Type: ApplicationFiled: March 13, 2013Publication date: January 15, 2015Applicants: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION, KABUSHIKI KAISHA TOSHIBAInventors: Takayuki Sakurai, Hiroyuki Ogawa, Tetsuo Yoshimitsu, Tatsuya Hirose, Satoshi Hiroshima
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Publication number: 20140292382Abstract: A signal generator generates a combined signal that is generated only in the period where supply of a pulse signal is effected, a pulse signal whose frequency is of a higher impulse repetition frequency than the frequency of the period setting signal and whose amplitude represents a voltage value that is lower than the high voltage HVDC value. A semiconductor switch accumulates electric charge on a capacitative element by means of the high voltage HVDC from the high voltage generator when the voltage value of the combined signal is lower than the set gate voltage value and generates an impulse voltage whose peak value is the value of the high voltage HVDC, by means of the electric charge that is discharged from the capacitative element when the voltage value of the combined signal exceeds the set gate voltage value.Type: ApplicationFiled: June 3, 2014Publication date: October 2, 2014Applicants: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORP., KABUSHIKI KAISHA TOSHIBAInventors: Hiroyuki Ogawa, Takayuki Sakurai, Tetsuo Yoshimitsu, Tatsuya Hirose, Satoshi Hiroshima, Masayuki Hikita, Masahiro Kozako, Takahisa Ueno
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Publication number: 20140253275Abstract: 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: ApplicationFiled: March 4, 2014Publication date: September 11, 2014Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Tetsu Shijo, Tetsushi Okamoto, Masahiro Sakai, Satoshi Hiroshima, Shuichi Obayashi, Akiko Yamada