Patents by Inventor Takuma Nishimura
Takuma Nishimura 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: 11170635Abstract: A reading device includes wireless slave devices that communicate via a multihop wireless network, a measuring unit that measures the state of an inspection target to generate measurement data, a measurement data analysis unit, and a failure cause analysis unit that analyzes a failure cause when the analysis of the failure cause analysis unit fails. The reading device transmits the measurement data to the data collecting device by associating the measurement data with failure cause information. The data collecting device includes a wireless master device, a measurement data acquisition unit that acquires measurement data from each reading device, a recording unit that records the measurement data when the measurement data is not associated with failure cause information, and a retry control unit that retries data acquisition according to the type of the failure cause when the measurement data is associated with the failure cause information.Type: GrantFiled: June 7, 2017Date of Patent: November 9, 2021Assignee: Hitachi, Ltd.Inventors: Hiroshige Kashiwabara, Takuma Nishimura, Yoshimi Fujimata, Hidemasa Nakai, Jumpei Honda
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Publication number: 20210289365Abstract: A communication system includes: storage to store location information of each of a plurality of devices capable of wireless multi-hop communication, site configuration information including location and size information of an obstacle present at a site of the plurality of devices, and communication quality information between devices; a determination unit determines whether a repeater needs to be added for each of the plurality of devices, based on communication quality information; and a decision unit calculates an expected value related to attenuation of received power between the first and second devices caused by the obstacle, and decides a location for the determination unit to add the repeater based on location information of the first device determined, location information of the second device different from the first device and communicated with the first device through the repeater, the communication quality information between the first and second device, and the site configuration information.Type: ApplicationFiled: December 22, 2017Publication date: September 16, 2021Applicant: HITACHI, LTD.Inventors: Ryo NAKANO, Yuichi IGARASHI, Takuma NISHIMURA
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Publication number: 20210287527Abstract: Useless retries of data transfer is decreased to contribute to power saving during inspection. A reading device includes wireless slave devices that communicate via a multihop wireless network, a measuring unit that measures the state of an inspection target to generate measurement data, a measurement data analysis unit, and a failure cause analysis unit that analyzes a failure cause when the analysis of the failure cause analysis unit fails. The reading device transmits the measurement data to the data collecting device by associating the measurement data with failure cause information.Type: ApplicationFiled: June 7, 2017Publication date: September 16, 2021Inventors: Hiroshige KASHIWABARA, Takuma NISHIMURA, Yoshimi FUJIMATA, Hidemasa NAKAI, Jumpei HONDA
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Patent number: 11088652Abstract: A current detector and a detection unit are provided. The current detector is connected to at least one of drive current lines of a rotary machine. The detection unit performs an orthogonal detection on a main frequency detected by the current detector, and extracts a magnitude of a sideband wave. Then, a state of the rotary machine is diagnosed from the magnitude of the extracted sideband wave.Type: GrantFiled: October 9, 2019Date of Patent: August 10, 2021Assignee: HITACHI, LTD.Inventors: Kazuo Ono, Reiso Sasaki, Takuma Nishimura
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Publication number: 20210241784Abstract: A sound inspection system that can reduce power consumption is provided. A sound inspection system 1 that determines a state based on a sound of an inspection target object 2 includes a sound sensor device 10 that collects the sound of the inspection target object 2, analyzes the collected sound, and transmits an analysis result, and a sound data determination device 30 that determines a state of the inspection target object based on the analysis result from the sound sensor device. The sound sensor device transmits, as the analysis result, intensities of the collected sound for each predetermined frequency set in advance.Type: ApplicationFiled: March 1, 2019Publication date: August 5, 2021Inventors: Reiso SASAKI, Takuma NISHIMURA, Takahiro YAMADA, Tsukasa FUJIMORI
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Publication number: 20210221941Abstract: As a thermoplastic resin used as a matrix resin for a fiber-reinforced composite material, a thermoplastic resin having a high glass transition temperature in spite of having a low resin viscosity during molding is provided. Provided are a two-liquid curable composition for forming a thermoplastic matrix resin, the two-liquid curable composition containing an active hydrogen component containing an alkylthio group-containing aromatic diamine (A) and a diisocyanate component containing at least one kind of diisocyanate (B) selected from the group consisting of aliphatic diisocyanates, alicyclic diisocyanates, and modified forms of aliphatic diisocyanates and alicyclic diisocyanates, a matrix resin for a fiber-reinforced composite material, the matrix resin being a thermoplastic resin containing a reaction product of the active hydrogen component and the diisocyanate component, and a fiber-reinforced composite material containing the matrix resin and reinforcing fiber.Type: ApplicationFiled: April 9, 2019Publication date: July 22, 2021Applicant: DAI-ICHI KOGYO SEIYAKU CO., LTD.Inventors: Yoshinori YAMADA, Takuma NISHIMURA, Kei OIKAWA
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Publication number: 20210173382Abstract: A control device which controls a machine tool so as to move a table during exchange of tools includes: a movement distance acquisition unit which acquires a movement distance of the table during tool exchange; a movement time calculation unit which calculates a fastest movement time from an acquired movement distance, and a speed at which the table is caused to move fastest; a tool exchange time calculation unit which calculates a tool exchange time; a comparison unit which compares the tool exchange time calculated with the fastest movement time calculated; and a speed changing unit which changes the movement speed of the table, in a case of the fastest movement time being shorter than the tool exchange time, so that the movement time of the table becomes longer than the fastest movement time.Type: ApplicationFiled: November 18, 2020Publication date: June 10, 2021Applicant: FANUC CORPORATIONInventor: Takuma NISHIMURA
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Publication number: 20210130611Abstract: Provided are a two-component curable composition, for manufacture of a thermoplastic polyurethane resin, that exhibits low mixing viscosity and high glass transition temperature after curing, a thermoplastic polyurethane resin that is a cured product thereof, and a fiber-reinforced resin including the thermoplastic polyurethane resin. The two-component curable composition for manufacture of a thermoplastic polyurethane resin is a two-component curable composition including a polyol component including a diol (A) and a polyisocyanate component including a diisocyanate (B). The diol (A) includes a diol (A-1) having an aromatic ring and having a molecular weight of 200 to 700 and a diol (A-2) having no aromatic ring and having a molecular weight of 500 or less. The ratio ((A-1)/((A-1)+(A-2))) of the mass of the diol (A-1) to the total mass of the diol (A-1) and the diol (A-2) is (10/100) to (75/100).Type: ApplicationFiled: April 9, 2019Publication date: May 6, 2021Applicant: DAI-ICHI KOGYO SEIYAKU CO., LTD.Inventors: Takuma NISHIMURA, Yoshinori YAMADA, Kei OIKAWA
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Publication number: 20200393824Abstract: When the learning process is performed and the learning result is set in the wireless slave device, the time required for installing the wireless slave device is increased. Further, when data including the state of the inspection target object detected by the wireless slave device is transmitted as it is, the data size is increased, and the power consumption of the wireless slave device is also increased. A wireless slave device transmits a state of an inspection target object to a setting device as learning data, obtains, as an analysis result, a degree of difference between the state of the inspection target object and the normal state of the inspection target object based on a learning result set by the setting device, and wirelessly transmits data including the analysis result to the wireless master device.Type: ApplicationFiled: March 23, 2020Publication date: December 17, 2020Inventors: Kazuo ONO, Takuma NISHIMURA, Yoshinori MOCHIZUKI
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Publication number: 20200393811Abstract: A wireless endpoint provided in an automatic inspection system includes a sound collection unit that collects sounds produced by an inspection target, an analysis unit that analyzes the collected sound and obtains a degree of difference between the collected sound and a normal sound learned in advance as an analysis result, a wireless communication unit that wirelessly transmits data including the analysis result to a wireless base station, and a power supply unit that supplies power to the above units. The wireless base station manages the data received from the wireless endpoint. In response to a request from a monitoring terminal that monitors the status of the inspection target, the wireless base station transmits the analysis result retrieved from the data to the monitoring terminal. The monitoring terminal performs a process of disclosing a status of the inspection target determined from the analysis result.Type: ApplicationFiled: March 20, 2020Publication date: December 17, 2020Inventors: Reiso SASAKI, Kazuo ONO, Takuma NISHIMURA
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Publication number: 20200357107Abstract: There are provided an automatic inspection system and an automatic inspection method capable of suppressing power consumption of a measurement device. A measurement device includes a sensor unit 11 that measures an inspection target 3, a parameter management unit 13 that determines a predetermined parameter set for the sensor unit based on parameter determination information received from a data collection device 2, and a measurement data generation unit 12 that generates measurement data by analyzing data obtained by the sensor unit measuring the inspection target by using the predetermined parameter. The data collection device includes a parameter determination information generation unit 23 that generates parameter determination information, and a measurement data acquisition unit 21 that specifies the parameter determination information for the measurement device, requests the measurement device to acquire the measurement data, and stores the measurement data acquired from the measurement device.Type: ApplicationFiled: June 6, 2018Publication date: November 12, 2020Inventors: Jumpei HONDA, Takuma NISHIMURA, Hiroshige KASHIWABARA
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Patent number: 10819600Abstract: A data collection apparatus collecting data from a terminal device connected through a communication path, comprising a schedule managing unit determining a schedule transmitting a data acquisition request to the terminal device according to managed timing data, a transmission amount adjusting unit adjusting a transmission amount of the data acquisition request, and a collected data managing unit managing the data collected from the terminal device, in which the schedule managing unit manages a start point time that is a time at which a data collection from each terminal device starts, a collection period that is an interval of the data collection from each terminal device, a retransmission interval that is a time until the data acquisition request is retransmitted when the data collection from the terminal device fails, and a retransmission number that is the number of times to retransmit the data acquisition request as the timing data.Type: GrantFiled: October 19, 2018Date of Patent: October 27, 2020Assignee: HITACHI, LTD.Inventors: Yuichi Igarashi, Ryo Nakano, Jumpei Honda, Hiroshige Kashiwabara, Takuma Nishimura
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Publication number: 20200299923Abstract: A wheel loader includes a boom, a forward clutch, and a controller configured to control hydraulic pressure of hydraulic oil supplied to the forward clutch. The controller performs clutch hydraulic pressure control for bringing the forward clutch into a semi-engagement state by controlling the hydraulic pressure of the hydraulic oil supplied to the forward clutch on condition that the wheel loader advances while raising the boom in at least a loaded state.Type: ApplicationFiled: August 10, 2017Publication date: September 24, 2020Applicant: KOMATSU LTD.Inventors: Ryota ENOMOTO, Masanori IKARI, Kentaro YAJIMA, Takuma NISHIMURA
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Publication number: 20200259234Abstract: A coaxial line is provided which includes: a first columnar conductor disposed inside a multilayer substrate such that one end thereof is coupled to a first stripline and that the other end thereof is coupled to a second stripline; and one or more second columnar conductors penetrating the multilayer substrate such that one end thereof is coupled to a ground layer and that the other end thereof is coupled to a ground layer, the first columnar conductor acting as an inner conductor, and the second columnar conductors acting as outer conductors. Each of the first and second striplines is coupled to an open stub acting as resonators and a matching conductor acting as capacitance matching elements.Type: ApplicationFiled: September 14, 2018Publication date: August 13, 2020Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Motomi WATANABE, Takeshi YUASA, Takuma NISHIMURA
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Patent number: 10719468Abstract: A USB management system using a USB relay device includes a management terminal having a management database for recording management information of a USB client registered in advance. The USB relay device has a connection switching unit for switching a connection state between a first connector portion to which the USB client is connected and a second connector portion which is connected to a USB host controller. When the USB client is connected to the first connector portion, the USB relay device reads management information of the USB client and transmits the management information to the management terminal, and the management terminal inquires of the management database about the management information of the USB client transmitted from the USB relay device, compares the management information with the management information of the USB client registered in advance, and determines the connection state by the connection switching unit.Type: GrantFiled: January 15, 2018Date of Patent: July 21, 2020Assignee: HITACHI, LTD.Inventors: Kei Takezawa, Takuma Nishimura, Hideki Tonooka
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Patent number: 10680307Abstract: A substrate is used as one tube wall of a hollow waveguide, the substrate including a strip line wired in an inner layer, a first ground surface formed on a front surface, and a second ground surface formed on a part of a back surface. As a result of such a configuration, a waveguide strip line transducer having the same dimension as the external dimension of the hollow waveguide can be obtained.Type: GrantFiled: June 5, 2017Date of Patent: June 9, 2020Assignee: Mitsubishi Electric CoporationInventors: Motomi Watanabe, Shinji Arai, Tomohiro Takahashi, Takeshi Oshima, Takeshi Yuasa, Takuma Nishimura, Hidenori Yukawa
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Patent number: 10655725Abstract: A lubricating apparatus includes a lubricating oil supplying member disposed to face a tip surface of an input shaft. An axial oil passage and a radial oil passage are formed inside the input shaft and allow an outer circumferential surface of the input shaft having outer spline teeth and the tip surface to communicate with each other. A first supplied oil passage and a second supplied oil passage are formed inside the lubricating oil supplying member, a lubricating oil supplied to the axial oil passage flowing through the first supplied oil passage and the second supplied oil passage. The first supplied oil passage is provided with an inflow port, the lubricating oil flowing into the first supplied oil passage through the inflow port. The inflow port is open to an outer circumferential surface of the lubricating oil supplying member in a radial direction of the input shaft.Type: GrantFiled: November 12, 2015Date of Patent: May 19, 2020Assignee: KOMATSU LTD.Inventors: Osamu Kodama, Takuma Nishimura, Kyousuke Moriguchi
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Publication number: 20200150156Abstract: A rotary tool diagnosis system according to one aspect of the present invention includes a first current detector, a second current detector, and a signal processing device. The first current detector detects a current of at least one power line connected to a first electric motor that rotates a rotary tool. The second current detector detects a current of at least one power line connected to a second electric motor that is used for moving the rotary tool. The signal processing device triggers based on a result of processing on an output signal of the second current detector and starts recording of an output signal from the first current detector.Type: ApplicationFiled: November 7, 2019Publication date: May 14, 2020Inventors: Kazuo ONO, Kouji MATSUDA, Takuma NISHIMURA
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Patent number: 10636287Abstract: An automatic inspection system, which includes a wireless slave device having a reading device that acquires a physical quantity to be inspected and a wireless master device that receives measurement data of the physical quantity from the wireless slave device, is provided with a data collection device that collects the measurement data from the wireless slave device via the wireless master device in a constant cycle and detects a time zone in which the measurement data is non-acquirable by the reading device based on a result of the collection. The wireless master device performs control to avoid the wireless slave device from re-acquisition of the measurement data in the non-acquirable time zone based on a result of the detection of the non-acquirable time zone.Type: GrantFiled: November 6, 2017Date of Patent: April 28, 2020Assignee: Hitachi, Ltd.Inventors: Jumpei Honda, Takuma Nishimura, Yoshimi Fujimata, Hiroshige Kashiwabara
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Publication number: 20200127594Abstract: A current detector and a detection unit are provided. The current detector is connected to at least one of drive current lines of a rotary machine. The detection unit performs an orthogonal detection on a main frequency detected by the current detector, and extracts a magnitude of a sideband wave. Then, a state of the rotary machine is diagnosed from the magnitude of the extracted sideband wave.Type: ApplicationFiled: October 9, 2019Publication date: April 23, 2020Inventors: Kazuo ONO, Reiso SASAKI, Takuma NISHIMURA