Patents by Inventor Hiroaki Kojima
Hiroaki Kojima 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: 11978924Abstract: A power supply device including a plurality of battery cells electrically connected with each other by bus bar. The power supply device has a structure where bus bar includes: rod having conductivity and extending in an arrangement direction of the battery cells; and arm being elastically deformable and being connected to rod, arm is configured such that distal end of arm is welded to an electrode terminal of the battery cell, and rear end of arm is connected to rod so as to electrically connect the plurality of battery cells to each other via the rod, arm is formed of a conductive plate that is elastically deformable, deformation gap extending from rear end toward a distal end is formed between arm and rod, and arm is elastically deformable so as to displace distal end to be welded to the electrode terminal.Type: GrantFiled: August 26, 2019Date of Patent: May 7, 2024Assignee: SANYO Electric Co., Ltd.Inventors: Hiroaki Kita, Takashi Inamura, Yasumasa Kojima
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Patent number: 11979684Abstract: There is provided a content distribution device including a virtual character arrangement acquisitor that acquires an arrangement in a virtual space of each of a plurality of virtual characters respectively corresponding to a plurality of participants in accordance with an operation of a corresponding participant, a trigger detector that detects a first trigger and thereafter detects a second trigger, and a display control data distributor that generates and distributes display control data for displaying at least a part of the virtual space in which the plurality of virtual characters is arranged.Type: GrantFiled: June 24, 2020Date of Patent: May 7, 2024Assignee: DWANGO Co., Ltd.Inventors: Nobuo Kawakami, Takashi Kojima, Hiroaki Saito, Toshihiro Shimizu
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Patent number: 11372048Abstract: The invention provides a diagnostic device including: an input/output unit that receives an input of a current value indicating a value of a current of an electric motor measured by a sensor; a frequency analysis unit that converts the current value measured by the sensor into a frequency intensity; a deterioration mode decomposition unit that uses a state mode model indicating a change situation of a frequency intensity in a part constituting the electric motor to calculate an activity level indicating a time series change of a deterioration intensity for each state mode model from the frequency intensity; and an abnormality determination unit that determines a deterioration and an abnormality of each part using the activity level.Type: GrantFiled: November 17, 2020Date of Patent: June 28, 2022Assignee: HITACHI, LTD.Inventors: Akari Kubo, Masayoshi Ojima, Hiroaki Kojima
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Patent number: 11374454Abstract: A dynamo-electric machine with discharge reduced in a core slot without relation to a position of a stator coil placed in the core slot is provided. For that purpose, the present invention includes: a stator coil including a coil conductor and a main insulation layer covering a surface of the coil conductor; a core slot containing the stator coil; a first semiconducting layer that is placed between the stator coil and the core slot and is wrapped around and in contact with the main insulation layer; and a second semiconducting layer that is wrapped around the stator coil and in contact with the core slot, with the second semiconducting layer overlaid on the first semiconducting layer. The first semiconducting layer has a surface facing toward the core slot and a release layer is formed on the surface facing toward the core slot. The first semiconducting layer has electric connection with an inner peripheral surface of the core slot via the second semiconducting layer.Type: GrantFiled: January 7, 2019Date of Patent: June 28, 2022Assignee: Hitachi Industrial Products, Ltd.Inventors: Yuuki Kasai, Yuuichirou Yoshitake, Hiroaki Kojima
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Publication number: 20220198856Abstract: A communication control system includes an acquisition unit that obtains setting information when the setting information is input by a user. The setting information is related to a restriction on actuation of an operation subject that is actuated or allowed to be actuated through authentication communication performed with a terminal. The communication control system further includes a restriction unit that restricts actuation of the operation subject when a condition in the setting information is satisfied.Type: ApplicationFiled: April 7, 2020Publication date: June 23, 2022Applicant: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHOInventors: Keita SOBUE, Hiroaki KOJIMA, Masayuki KAWAMURA
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Patent number: 11336289Abstract: According to a clock generator, an oscillator outputs source oscillation clocks which are trimmed according to a trimming code. A first frequency divider generates X frequency division clocks by frequency-dividing the source oscillation clocks by a first frequency division ratio X. A trimming controller changes the trimming code within a period of the X frequency division clocks and supplies the changed trimming code to the oscillator.Type: GrantFiled: September 4, 2020Date of Patent: May 17, 2022Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATIONInventor: Hiroaki Kojima
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Patent number: 11187147Abstract: A pressure variation in a fuel tank can be prevented, and leakage of liquid fuel can be prevented even if the fuel tank is inclined in a predetermined direction, without operation for opening and closing a breather passage. An engine generator includes: a first breather passage having an opening at a position above a liquid fuel in a tank bulge section when the engine generator is inclined to the right (corresponding to a first direction); and a second breather passage having an opening at a position above the liquid fuel in the tank bulge section when the engine generator is inclined in the left direction (a second direction).Type: GrantFiled: September 6, 2018Date of Patent: November 30, 2021Assignee: HONDA MOTOR CO., LTD.Inventors: Hiroaki Kojima, Masashi Kai, Jun Yamamoto, Mitsuhiro Ito
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Publication number: 20210340903Abstract: A pressure variation in a fuel tank can be prevented, and leakage of liquid fuel can be prevented even if the fuel tank is inclined in a predetermined direction, without operation for opening and closing a breather passage. An engine generator includes: a first breather passage having an opening at a position above a liquid fuel in a tank bulge section when the engine generator is inclined to the right (corresponding to a first direction); and a second breather passage having an opening at a position above the liquid fuel in the tank bulge section when the engine generator is inclined in the left direction (a second direction).Type: ApplicationFiled: September 6, 2018Publication date: November 4, 2021Inventors: Hiroaki Kojima, Masashi Kai, Jun Yamamoto, Mitsuhiro Ito
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Publication number: 20210288654Abstract: According to a clock generator, an oscillator outputs source oscillation clocks which are trimmed according to a trimming code. A first frequency divider generates X frequency division clocks by frequency-dividing the source oscillation clocks by a first frequency division ratio X. A trimming controller changes the trimming code within a period of the X frequency division clocks and supplies the changed trimming code to the oscillator.Type: ApplicationFiled: September 4, 2020Publication date: September 16, 2021Inventor: Hiroaki Kojima
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Publication number: 20210165045Abstract: The invention provides a diagnostic device including: an input/output unit that receives an input of a current value indicating a value of a current of an electric motor measured by a sensor; a frequency analysis unit that converts the current value measured by the sensor into a frequency intensity; a deterioration mode decomposition unit that uses a state mode model indicating a change situation of a frequency intensity in a part constituting the electric motor to calculate an activity level indicating a time series change of a deterioration intensity for each state mode model from the frequency intensity; and an abnormality determination unit that determines a deterioration and an abnormality of each part using the activity level.Type: ApplicationFiled: November 17, 2020Publication date: June 3, 2021Inventors: Akari KUBO, Masayoshi OJIMA, Hiroaki KOJIMA
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Publication number: 20210142599Abstract: A portable device includes a vibration sensor and a determination unit. The determination unit determines that vibration is detected when an amount of vibration applied to the portable device exceeds a determination threshold that is indicative of a vibration detection sensitivity of the vibration sensor. The determination unit selects one of determination thresholds that are indicative of different vibration detection sensitivities and determines whether or not vibration is detected based on the selected determination threshold.Type: ApplicationFiled: May 29, 2018Publication date: May 13, 2021Applicant: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHOInventors: Tetsuya KAWAMURA, Hiroaki KOJIMA, Masayuki KAWAMURA, Tomohiko ISHIGAKI
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Publication number: 20210050758Abstract: A dynamo-electric machine with discharge reduced in a core slot without relation to a position of a stator coil placed in the core slot is provided. For that purpose, the present invention includes: a stator coil including a coil conductor and a main insulation layer covering a surface of the coil conductor; a core slot containing the stator coil; a first semiconducting layer that is placed between the stator coil and the core slot and is wrapped around and in contact with the main insulation layer; and a second semiconducting layer that is wrapped around the stator coil and in contact with the core slot, with the second semiconducting layer overlaid on the first semiconducting layer. The first semiconducting layer has a surface facing toward the core slot and a release layer is formed on the surface facing toward the core slot. The first semiconducting layer has electric connection with an inner peripheral surface of the core slot via the second semiconducting layer.Type: ApplicationFiled: January 7, 2019Publication date: February 18, 2021Inventors: Yuuki KASAI, Yuuichirou YOSHITAKE, Hiroaki KOJIMA
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Publication number: 20200072615Abstract: A positioning system includes a detector arranged in a terminal to detect a dynamic physical quantity generated at the terminal, and a position calculator that obtains a position of the terminal when the terminal is moved relative to a communication peer. The detector includes a direction detector that detects a movement direction of the terminal, and a movement change amount detector that detects a movement change amount of the terminal.Type: ApplicationFiled: February 16, 2018Publication date: March 5, 2020Inventors: Yuki KONO, Hiroaki KOJIMA, Masayuki KAWAMURA, Daisuke SENZAKI
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Patent number: 10442949Abstract: A composition for an electric wire coating material that has excellent damage resistance, low-temperature flexibility, tear resistance, and thermal stability, and an insulated electric wire in which this composition is used. The composition for an electric wire coating material containing polyvinyl chloride contains a plasticizer in an amount of 15 to 30 parts by mass and one or more ethylene-based copolymers selected from ethylene-vinyl ester copolymers and ethylene-?,?-unsaturated carboxylic acid ester copolymers in an amount of 0.1 to 10 parts by mass, with respect to 100 parts by mass of the polyvinyl chloride. An insulated electric wire is obtained by coating an outer circumference of a conductor with an insulating coating layer, with this composition for an electric wire coating material used in an electric wire coating material.Type: GrantFiled: September 23, 2016Date of Patent: October 15, 2019Assignees: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Toyoki Furukawa, Hiroaki Kojima
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Patent number: 10424984Abstract: A rotating electrical machine includes a plurality of coil conductors, and an insulating tape. The insulating tape is wound around the coil conductors a plurality of times to form an insulating layer. The insulating layer corresponds to at least a part of the coil conductors protruded from the core is provided so that a part of the wound insulating tape is adhered.Type: GrantFiled: March 18, 2016Date of Patent: September 24, 2019Assignee: Hitachi, Ltd.Inventors: Hiroaki Kojima, Kenji Ikeda, Naohiro Hiruta, Daisuke Kamegawa
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Publication number: 20190080539Abstract: This key security device is used together with a first terminal which may be a mobile phone with high functionality and a second terminal which may be an electronic key. The key security device is provided with: a location information acquiring unit which acquires location information about the first terminal from a global positioning system (GPS) receiver of the first terminal; a level setting unit which sets an alert level according to the acquired location information; and a security guard processor which sets a location determination parameter value according to the alert level, monitors the distance between the first terminal and the second terminal through communication between the first terminal and the second terminal according to the alert level and the location determination parameter, and executes a security guard processing of the second terminal according to the result of the monitoring.Type: ApplicationFiled: April 20, 2017Publication date: March 14, 2019Applicant: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHOInventors: Sho YOSHIKAWA, Daisuke SENZAKI, Masayuki KAWAMURA, Hiroaki KOJIMA
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Patent number: 10199900Abstract: The present invention provides a rotating machine which can maintain good contact state between the brush and the metal rotating body. A rotating machine of the present invention includes a stator including a stator winding, a rotor including a rotor winding and rotatably disposed apart from the stator with a gap, a metal rotating body electrically coupled with the rotor winding, a brush in contact with the metal rotating body, and a pressing mechanism for increasing pressure to press the brush against the metal rotating body when contact failure occurs between the metal rotating body and the brush.Type: GrantFiled: October 22, 2015Date of Patent: February 5, 2019Assignee: Hitachi, Ltd.Inventors: Takeshi Iwata, Hiroaki Kojima, Motonobu Iizuka
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Publication number: 20180215943Abstract: A composition for an electric wire coating material that has excellent damage resistance, low-temperature flexibility, tear resistance, and thermal stability, and an insulated electric wire in which this composition is used. The composition for an electric wire coating material containing polyvinyl chloride contains a plasticizer in an amount of 15 to 30 parts by mass and one or more ethylene-based copolymers selected from ethylene-vinyl ester copolymers and ethylene-?,?-unsaturated carboxylic acid ester copolymers in an amount of 0.1 to 10 parts by mass, with respect to 100 parts by mass of the polyvinyl chloride. An insulated electric wire is obtained by coating an outer circumference of a conductor with an insulating coating layer, with this composition for an electric wire coating material used in an electric wire coating material.Type: ApplicationFiled: September 23, 2016Publication date: August 2, 2018Inventors: Toyoki FURUKAWA, Hiroaki KOJIMA
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Publication number: 20180148622Abstract: A resin composition contains: a thermosetting resin; a thermally conductive filler; and mica; in which, when the thermally conductive filler is divided into a filler group (A) having a particle diameter of from 10 ?m to 100 ?m, a filler group (B) having a particle diameter of from 1.0 ?m to smaller than 10 ?m, and a filler group (C) having a particle diameter of from 0.1 ?m to smaller than 1.0 ?m, a ratio of the filler group (C) with regard to the thermally conductive filler, based on volume, is larger than a ratio of the filler group (B) with regard to the thermally conductive filler, based on volume.Type: ApplicationFiled: May 24, 2016Publication date: May 31, 2018Inventors: Yoshitaka TAKEZAWA, Shihui SONG, Keiji FUKUSHIMA, Tomokazu TANASE, Tetsuji KATOH, Akihiro SANO, Hiroaki KOJIMA
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Publication number: 20180137257Abstract: In order to provide a sensing device and the like capable of using the behavior of a plurality of microorganisms changing over time as a sensor for estimating a chemical substance, the present invention includes: a recording unit in which is recorded a plurality of sample data that statistically calculated in advance the behavior of a plurality of microorganisms changing over time in an environment with known chemical substances present; a statistics unit for generating statistical data that statistically calculated the behavior of the plurality of microorganisms changing over time in an environment with a predetermined chemical substance present; and a determination unit for estimating the predetermined chemical substance on the basis of the statistical data and the sample data.Type: ApplicationFiled: May 10, 2016Publication date: May 17, 2018Inventors: Hiroto Tanaka, Hiroaki Kojima, Yasushi Naruse, Masato Okada