Patents by Inventor Akira Fujimoto
Akira Fujimoto 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: 20250087819Abstract: An electrochemical device includes a housing, a first electrochemical element present inside the housing and a porous structure occupying at least a part of the inside of the housing.Type: ApplicationFiled: July 24, 2024Publication date: March 13, 2025Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Akira FUJIMOTO, Yosuke AKIMOTO, Hiroaki YAMAZAKI
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Publication number: 20250076238Abstract: According to one embodiment, a sensor includes an element section. The element section includes a base including a first region, a second region and a third region, a first element fixed to the first region, a second element fixed to the second region, and a third element fixed to the third region. The first element includes a first fixed portion fixed to the first region, and a first film portion supported by the first fixed portion. The first film portion includes a first resistance member and a first layer including a first material. The second element includes a second fixed portion fixed to the second region, and a second film portion supported by the second fixed portion. The third element includes a third fixed portion fixed to the third region, and a third film portion supported by the third fixed portion.Type: ApplicationFiled: June 5, 2024Publication date: March 6, 2025Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Yosuke AKIMOTO, Akira FUJIMOTO, Yoshihiko KURUI, Ping WANG
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Publication number: 20250067809Abstract: The disclosure discloses a technique for more accurately evaluating a residual value of a secondary battery.Type: ApplicationFiled: January 19, 2022Publication date: February 27, 2025Inventors: Chiaki OZAWA, Akira FUJIMOTO, Hiroya FUJIMOTO
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Patent number: 12210050Abstract: The present embodiment provides a partial discharge measurement apparatus configured to detect partial discharge generated in a rotating electrical machine supplying or receiving power via an insulated conductor, where the apparatus comprises a calibration signal generator, a sensor, a compensation processor, and a signal processor. The calibration signal generator is configured to supply a calibration signal to a surface of an insulating layer of the insulated conductor. The sensor is configured to measure a physical quantity regarding the partial discharge. The compensation processor is configured to use an output signal of the sensor when the calibration signal has been supplied to generate a compensation coefficient. The signal processor is configured to process the output signal of the sensor based on the compensation coefficient.Type: GrantFiled: February 23, 2023Date of Patent: January 28, 2025Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Akira Fujimoto, Takashi Harakawa, Makoto Takanezawa, Hirotaka Tsubakihara
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Publication number: 20240404136Abstract: A rotary electric machine managing system of an embodiment has an image data generating unit configured in such a way as to generate image data which indicates past breakdown voltage-related information related to a breakdown voltage of the past, present breakdown voltage-related information related to a breakdown voltage of the present, and future breakdown voltage-related information related to a breakdown voltage of the future as breakdown voltage-related information. The past breakdown voltage-related information is information found based on a partial discharge signal obtained from a rotary electric machine at a time of operation in the rotary electric machine of the past. The present breakdown voltage-related information is information found based on a partial discharge signal obtained from the rotary electric machine at a time of operation in the rotary electric machine of the present.Type: ApplicationFiled: January 16, 2024Publication date: December 5, 2024Applicant: TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Tomoaki TAKAHASHI, Takashi HARAKAWA, Makoto TAKANEZAWA, Akira FUJIMOTO, Hiroyuki YODA, Koji ANDO
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Publication number: 20240390404Abstract: An object of the present invention is to provide an anti-human norovirus agent which can inhibit infection with and proliferation of human norovirus. The present inventors have found that the object can be attained through provision of an anti-human norovirus agent comprising a fucose analog having an inhibitory action on glycosylation by fucosyltransferase (FUT) as an active ingredient. Examples of the active ingredient include a fucose analog represented by formula (III) or (IV) or a salt thereof: [In the formulas, each of formula (III) and formula (IV) represents an ?-anomer or a ?-anomer; each of R1, R3, and R4 is —OH or —OAc; R2 is a halogen atom, —OH, or —OAc; and R5 is —CH3, —C?CH, —C?CCH3, or —CH2C?CH.Type: ApplicationFiled: August 5, 2024Publication date: November 28, 2024Applicants: KEIO UNIVERSITY, THE KITASATO INSTITUTEInventors: Kazuhiko KATAYAMA, Akira FUJIMOTO, Kei HAGA, Reiko TODAKA, Toshiro SATO
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Publication number: 20240302320Abstract: An electrochemical device includes a housing, a first member and a second member provided between the housing and the first member. The housing has a first through hole including a first opening that faces the first member. The second member has a second through hole including a second opening.Type: ApplicationFiled: February 6, 2024Publication date: September 12, 2024Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Akira FUJIMOTO, Yosuke AKIMOTO, Hiroaki YAMAZAKI
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Publication number: 20240295514Abstract: According to one embodiment, a sensor includes an element section including a first base and a first element. The first element includes a first fixed member fixed to the first base, a first connecting member supported by the first fixed member, and a first film portion supported by the first connecting member. A first gap is provided between the first base and the first film portion. The first film portion includes a first resistance layer, a first conductive layer, and a first conductive member provided between the first resistance layer and the first conductive layer. A potential of the first conductive member is fixed. A first electrical resistance of the first resistance layer is configured to change according to a state of a detection target around the first element.Type: ApplicationFiled: August 29, 2023Publication date: September 5, 2024Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Yosuke AKIMOTO, Akira FUJIMOTO, Yoshihiko KURUI, Ping WANG, Hiroaki YAMAZAKI
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Publication number: 20240295513Abstract: According to one embodiment, a sensor includes an element section including a first base and a first element. The first element includes a first fixed member fixed to the first base, a first connecting member supported by the first fixed member, and a first film portion supported by the first connecting member. A first gap is provided between the first base and the first film portion. The first film portion includes a first resistance layer, a first conductive layer, and a first conductive member. The first resistance layer does not overlap the first conductive layer in a first direction from the first base to the first fixed member. The first conductive member overlaps the first resistance layer and the first conductive layer in the first direction. A first electrical resistance of the first resistance layer changes according to a state of a detection target around the first element.Type: ApplicationFiled: July 19, 2023Publication date: September 5, 2024Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Yosuke AKIMOTO, Akira FUJIMOTO, Yoshihiko KURUI, Ping WANG, Hiroaki YAMAZAKI
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Publication number: 20240295516Abstract: According to one embodiment, a sensor includes an element portion including a first base and a first element. The first element includes, a first fixed member fixed to the first base, a first resistance connecting member supported by the first fixed member, a first conductive connecting member supported by the first fixed member, and a first film portion supported by the first resistance connecting member and the first conductive connecting member. A first gap is provided between the first base and the first film portion. The first film portion includes a first resistance layer and a first conductive layer. The first resistance connecting member includes a first resistance wiring electrically connected to the first resistance layer. The first conductive connecting member includes a first conductive wiring electrically connected to the first conductive layer.Type: ApplicationFiled: July 19, 2023Publication date: September 5, 2024Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Yosuke AKIMOTO, Akira FUJIMOTO, Yoshihiko KURUI, Ping WANG, Hiroaki YAMAZAKI
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Publication number: 20240082764Abstract: According to one embodiment, a filter includes a first layer and a second layer. The first layer includes a first resin provided with a plurality of holes. The first layer includes a first face. At least a part of the plurality of holes reaches the first face. The second layer includes a second resin. The second resin blocks at least a part of the plurality of holes reaching the first face.Type: ApplicationFiled: February 27, 2023Publication date: March 14, 2024Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Akira FUJIMOTO, Yosuke AKIMOTO, Hiroaki YAMAZAKI
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Patent number: 11915845Abstract: A rare earth sintered magnet is produced by depositing a coating of rare earth-containing particles on the surface of a rare earth magnet body, and heat treating the magnet body for causing absorption and diffusion of rare earth element in the magnet body. The depositing step utilizes a particle impingement phenomenon.Type: GrantFiled: July 26, 2022Date of Patent: February 27, 2024Assignee: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Taiga Asai, Akira Fujimoto, Tetsuya Ohashi
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Publication number: 20240011961Abstract: According to one embodiment, a sensor includes a housing, a sensor portion, and a film member. The housing includes a first housing member including an opening. The first housing member includes a first inner face, and a first side face inside the opening. The sensor portion includes a sensor member including a hole, and a sensor element. A first gap is provided between the sensor element and the sensor member. The film member is porous. The film member includes an inner region and an outer region around the inner region. The outer region faces the first inner face. The sensor member is located between the sensor element and the inner region. The sensor member faces the inner region. At least a part of the inner region overlaps the first side face in a second direction crossing a first direction from the sensor element to the sensor member.Type: ApplicationFiled: February 27, 2023Publication date: January 11, 2024Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Yosuke AKIMOTO, Akira FUJIMOTO, Hiroaki YAMAZAKI
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Publication number: 20240011959Abstract: According to one embodiment, a sensor includes a housing and a sensor portion. The housing includes a first housing member. The first housing member includes an opening. The sensor portion is provided in the housing. The sensor portion includes a sensor member including a hole, and a sensor element. A first space between the sensor element and the sensor member is connected to a second space that is another space in the housing. A detection target gas is configured to flow into the first space through the opening and the hole.Type: ApplicationFiled: February 24, 2023Publication date: January 11, 2024Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Yosuke AKIMOTO, Akira FUJIMOTO, Hiroaki YAMAZAKI
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Publication number: 20230408570Abstract: The present embodiment provides a partial discharge measurement apparatus configured to detect partial discharge generated in a rotating electrical machine supplying or receiving power via an insulated conductor, where the apparatus comprises a calibration signal generator, a sensor, a compensation processor, and a signal processor. The calibration signal generator is configured to supply a calibration signal to a surface of an insulating layer of the insulated conductor. The sensor is configured to measure a physical quantity regarding the partial discharge. The compensation processor is configured to use an output signal of the sensor when the calibration signal has been supplied to generate a compensation coefficient. The signal processor is configured to process the output signal of the sensor based on the compensation coefficient.Type: ApplicationFiled: February 23, 2023Publication date: December 21, 2023Applicants: KABUSHIKI KAISHA TOSHIBA, Toshiba Energy Systems & Solutions CorporationInventors: Akira FUJIMOTO, Takashi HARAKAWA, Makoto TAKANEZAWA, Hirotaka TSUBAKIHARA
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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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Publication number: 20230280306Abstract: According to one embodiment, an electrochemical device includes an electrochemical element, and a controller. The electrochemical element includes a first electrode, a second electrode, and a first member provided between the first electrode and the second electrode. The controller is electrically connected to the first electrode and the second electrode. The controller is configured to supply a first signal between the first electrode and the second electrode. The first signal includes a waveform repeating in a first period. The waveform includes a first duration of a first voltage of a first polarity, and a second duration of a second voltage of the first polarity. An absolute value of the second voltage is smaller than an absolute value of the first voltage.Type: ApplicationFiled: August 26, 2022Publication date: September 7, 2023Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Akira FUJIMOTO, Yosuke AKIMOTO, Hiroaki YAMAZAKI
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Publication number: 20230066157Abstract: A rare earth sintered magnet is produced by depositing a coating of rare earth-containing particles on the surface of a rare earth magnet body, and heat treating the magnet body for causing absorption and diffusion of rare earth element in the magnet body. The depositing step utilizes a particle impingement phenomenon.Type: ApplicationFiled: July 26, 2022Publication date: March 2, 2023Applicant: Shin-Etsu Chemical Co., Ltd.Inventors: Taiga ASAI, Akira FUJIMOTO, Tetsuya OHASHI
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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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Publication number: 20220373546Abstract: The present invention provides a method of immunologically detecting SARS-CoV-2, the method comprising detecting a SARS-CoV-2 N protein in a specimen taken from a subject by using the following antibodies (1) and (2): (1) a first antibody to a first epitope in a 306th to 339th amino acid region in the SARS-CoV-2 N protein, and (2) a second antibody to a second epitope in a 365th to 419th amino acid region in the SARS-CoV-2 N protein.Type: ApplicationFiled: May 12, 2021Publication date: November 24, 2022Applicant: FUJIREBIO INC.Inventors: Masayasu IMAIZUMI, Kentaro YAMAKAWA, Tomonori NISHII, Naoyuki TANAKA, Azusa IIZUKA, Akira FUJIMOTO, Nobuyuki ISE, Kazuyoshi MIYAMOTO, Shintaro YAGI, Katsumi AOYAGI