Patents by Inventor Yuichi Igarashi
Yuichi Igarashi 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: 20240125886Abstract: Provided is an altitude calculation method for a flying body including calculating an altitude of the flying body by using information on horizontal coordinates of the flying body, a reception signal strength of a radio signal, and altitude calculation auxiliary information obtained in advance.Type: ApplicationFiled: October 6, 2023Publication date: April 18, 2024Inventors: Kenichi MIZUGAKI, Yuichi IGARASHI, Masanori ISHINO
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Publication number: 20240109601Abstract: A vehicle body structure includes a floor structure, a rear side member and a reinforcing member. The floor structure at least partially defines a door sill portion, a rear wheel well portion and a rear seat support portion. The rear side member extends wider and is directly attached to a lower surface of the floor structure adjacent to the door sill portion and a forward section of the rear wheel well portion. The reinforcing member is fixedly attached to an upper surface of the floor structure adjacent to the door sill portion and the forward section of the rear wheel well portion such that a portion of the floor structure, a portion of the reinforcing member and a portion of the rear side member are welded together via a plurality of triple welds.Type: ApplicationFiled: September 30, 2022Publication date: April 4, 2024Inventors: Aaron FELSENFELD, Yuichi IGARASHI, Nicholas TRIFONOFF
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Publication number: 20240106553Abstract: The position of a movable body is estimated without requiring the movable body to recognize and report its own position, and the position is reflected in a structural model constructed in a computer for the purpose of wireless communication environment evaluation.Type: ApplicationFiled: September 11, 2023Publication date: March 28, 2024Inventors: Ken TAKEI, Yuichi IGARASHI, Masami OHNISHI
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Publication number: 20240074327Abstract: According to one embodiment, a magnetic memory device includes: a first interconnect; a second interconnect; a first switching element provided on the first interconnect; a second switching element provided on the second interconnect; a first insulating layer provided surrounding the first switching element; a second insulating layer surrounding the second switching element and not being in contact with the first insulating layer; a first conductor provided on the first switching element and the first insulating layer; a second conductor provided on the second switching element and the second insulating layer; a first magnetoresistive effect element provided on the first conductor; and a second magnetoresistive effect element provided on the second conductor.Type: ApplicationFiled: June 12, 2023Publication date: February 29, 2024Applicant: Kioxia CorporationInventors: Taichi IGARASHI, Yuichi ITO, Eiji KITAGAWA, Masayoshi IWAYAMA
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Publication number: 20240062089Abstract: A quantum device includes a first quantum chip including a first qubit and a second qubit on a first surface of a first substrate; and a first via and a second via electrically connected to the first qubit and the second qubit penetrating the first substrate, and a second quantum chip including a coupling circuit, a coupling port coupling to the coupling circuit and a first pad for input and/or output of a signal for testing of the coupling circuit, on a first surface of a second substrate, the first pad disconnected from the coupling port, wherein the first qubit and the second qubit in electrical contact respectively via the first via and the second via with the coupling circuit arranged on the first surface of the second quantum chip.Type: ApplicationFiled: August 17, 2023Publication date: February 22, 2024Applicant: NEC CorporationInventor: Yuichi Igarashi
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Patent number: 11764780Abstract: In an aspect, the present disclosure provides a superconducting circuit including: a ground plane including a superconducting member; a plurality of superconducting parts surrounded by a non-conductive part with space from the ground plane, each of the plurality of superconducting parts including four coupling ports each configured to enable the superconducting part to interact with another superconducting part; a superconducting quantum interference device configured to set a resonance frequency of a first superconducting part included in the plurality of superconducting parts; and a multilevel wiring line configured to form, in cooperation with the ground plane, a superconducting loop surrounding the superconducting quantum interference device, in which the superconducting quantum interference device is disposed, in an area inside the superconducting loop, at a place where a magnetic field generated by a current from a bias line for the first superconducting part is applied.Type: GrantFiled: October 5, 2022Date of Patent: September 19, 2023Assignee: NEC CORPORATIONInventors: Aiko Yamaguchi, Yuichi Igarashi
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Publication number: 20230127101Abstract: In an aspect, the present disclosure provides a superconducting circuit including: a ground plane including a superconducting member; a plurality of superconducting parts surrounded by a non-conductive part with space from the ground plane, each of the plurality of superconducting parts including four coupling ports each configured to enable the superconducting part to interact with another superconducting part; a superconducting quantum interference device configured to set a resonance frequency of a first superconducting part included in the plurality of superconducting parts; and a multilevel wiring line configured to form, in cooperation with the ground plane, a superconducting loop surrounding the superconducting quantum interference device, in which the superconducting quantum interference device is disposed, in an area inside the superconducting loop, at a place where a magnetic field generated by a current from a bias line for the first superconducting part is applied.Type: ApplicationFiled: October 5, 2022Publication date: April 27, 2023Applicant: NEC CorporationInventors: Aiko YAMAGUCHI, Yuichi Igarashi
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Publication number: 20230021828Abstract: A worker constructs a map necessary for inspection of infrastructure equipment using data acquired using a target imaging device as data necessary for map generation, thereby reducing the cost necessary for transportation and the like of an autonomous inspection apparatus, and moreover, travel evaluation and inspection evaluation are performed using an evaluation function, and a map necessary for the inspection can be corrected based on a travel route of an autonomous travel route and an inspection result based on an evaluation result, whereby the introduction cost can be reduced.Type: ApplicationFiled: May 24, 2022Publication date: January 26, 2023Inventors: Noriyasu HASEJIMA, Kazuya MUROTANI, Yuichi IGARASHI, Yuta ESAKA
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Publication number: 20220397908Abstract: Provided is a self-propelled inspection device capable of improving efficiency of system introduction cost, setting, and update work necessary for self-propelling in a self-propelled inspection device expected to be operated outdoors for a long period of time. Therefore, there is provided the self-propelled inspection device that autonomously inspects an inspection object while autonomously traveling an inspection route, the self-propelled inspection device including: a self-position estimation unit that estimates a self-position; a map information database that manages map information for autonomous traveling; a traveling unit including a drive mechanism and a steering mechanism; a sensor that senses the inspection object; a map information update unit that updates the map information based on information sensed by the sensor; and a traveling unit control unit that controls the traveling unit based on the updated map information.Type: ApplicationFiled: July 22, 2020Publication date: December 15, 2022Inventors: Yuichi IGARASHI, Yuta ESAKA, Kazuo ONO, Noriyasu HASEJIMA, Kazuya MUROTANI, Takehito OGATA
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Patent number: 11489084Abstract: A photodetection element that includes: a substrate with a high infrared transmittance in a desired wavelength region; an electron barrier layer of a type-I superlattice structure, the electron barrier layer being formed above the substrate and lattice-matched to the substrate; and a light-receiving layer of a type-II superlattice structure, formed in contact with the electron barrier layer.Type: GrantFiled: May 11, 2018Date of Patent: November 1, 2022Assignee: NEC CORPORATIONInventor: Yuichi Igarashi
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Patent number: 11238673Abstract: An inspection target reading device includes a wireless slave station that performs communication via a wireless network, a measurement unit that measures a state of an inspection target, and an analysis unit that generates measurement data, and transmits the measurement data from the wireless slave station via the wireless network.Type: GrantFiled: April 17, 2018Date of Patent: February 1, 2022Assignee: HITACHI, LTD.Inventors: Jumpei Honda, Takuma Nishimura, Hiroshige Kashiwabara, Hidemasa Nakai, Yuichi Igarashi, Ryo Nakano
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Publication number: 20210382491Abstract: A self-propelled inspection robot according to the invention includes a self-position estimation unit that performs inspection of an equipment by traveling on a travel route and obtains the position of the self-propelled inspection robot, an obstacle detection unit that detects an obstacle, an inspection continuity determination unit that determines whether the self-propelled inspection robot can continue the inspection, a mode selection unit that selects an automatic mode and a manual mode as a travel mode of the self-propelled inspection robot when the inspection continuity determination unit determines that the inspection cannot be continued, and a control unit that makes the self-propelled inspection robot automatically travel when the inspection continuity determination unit and when the mode selection unit selects the automatic mode, and makes the self-propelled inspection robot travel by a user's operation when the mode selection unit selects the manual mode.Type: ApplicationFiled: April 30, 2021Publication date: December 9, 2021Inventors: Kazuya MUROTANI, Noriyasu HASEJIMA, Takehito OGATA, Yuichi IGARASHI, Kazuo ONO, Yuta ESAKA
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Patent number: 11190950Abstract: 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: GrantFiled: December 22, 2017Date of Patent: November 30, 2021Assignee: HITACHI, LTD.Inventors: Ryo Nakano, Yuichi Igarashi, Takuma Nishimura
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Patent number: 11133880Abstract: A computer system, which estimates a radio wave propagation characteristic in a space where a wireless communication system using structure data and system data is constructed, includes a computer having a processor and a storage apparatus and holds feature parameter information, which stores an entry that associates a parameter included in structure data, that is, a feature parameter which greatly contributes to an estimation result of the radio wave propagation characteristic in the space with a type of the space. When receiving a request for estimation of a radio wave propagation characteristic in a target space, the processor retrieves an entry associated with a type of the target space from the feature parameter information, and presents an interface to input a value of the feature parameter included in the retrieved entry as estimation structure data and an interface to input estimation system data.Type: GrantFiled: January 16, 2020Date of Patent: September 28, 2021Assignee: HITACHI, LTD.Inventors: Hiroki Yamada, Yuichi Igarashi, Kenzaburo Fujishima, Takashi Yano, Masami Oonishi
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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: 20210242361Abstract: A photodetection element that includes: a substrate with a high infrared transmittance in a desired wavelength region; an electron barrier layer of a type-I superlattice structure, the electron barrier layer being formed above the substrate and lattice-matched to the substrate; and a light-receiving layer of a type-II superlattice structure, formed in contact with the electron barrier layer.Type: ApplicationFiled: May 11, 2018Publication date: August 5, 2021Applicant: NEC CorporationInventor: Yuichi IGARASHI
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Patent number: 10819798Abstract: An on-site system includes a disclosure-condition-table storage unit and a disclosure-condition-table creation unit. The disclosure-condition-table storage unit stores a disclosure condition table for management of a relationship between a purpose of a service and a data characteristic of on-site data, as a disclosure condition for disclosing the on-site data to a service device that provides the service. The disclosure-condition-table creation unit creates the disclosure condition table in which a purpose of a service included in descriptive information of the service is associated with a data characteristic included in descriptive information of the on-site data, and stores the disclosure condition table in the disclosure-condition-table storage unit.Type: GrantFiled: June 3, 2016Date of Patent: October 27, 2020Assignee: HITACHI, LTD.Inventors: Tomoyuki Yamagata, Takahiro Ohira, Yuichi Igarashi, Yoshiyuki Tajima
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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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Patent number: 10795343Abstract: A data providing apparatus includes a field data acquisition unit configured to acquire field data relating to field equipment, and a data providing unit configured to transmit and receive information to and from a service providing unit, the service providing unit being a communication target and configured to use the field data as service data, in which the data providing unit manages information on a conversion rule defining a relationship between the field data and the service data, acquires the field data specified in a data acquisition request from the service providing unit, from the field data acquisition unit, converts the acquired field data to service data according to the conversion rule when there is a difference between a specification of the field data and a specification of the service data, and transmits the data obtained by the conversion to the service providing unit.Type: GrantFiled: January 25, 2019Date of Patent: October 6, 2020Assignee: Hitachi, Ltd.Inventors: Yoichi Nakamoto, Ryo Hirana, Toshiko Takamura, Daisuke Inaba, Yuichi Igarashi
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Publication number: 20200235835Abstract: A computer system, which estimates a radio wave propagation characteristic in a space where a wireless communication system using structure data and system data is constructed, includes a computer having a processor and a storage apparatus and holds feature parameter information, which stores an entry that associates a parameter included in structure data, that is, a feature parameter which greatly contributes to an estimation result of the radio wave propagation characteristic in the space with a type of the space. When receiving a request for estimation of a radio wave propagation characteristic in a target space, the processor retrieves an entry associated with a type of the target space from the feature parameter information, and presents an interface to input a value of the feature parameter included in the retrieved entry as estimation structure data and an interface to input estimation system data.Type: ApplicationFiled: January 16, 2020Publication date: July 23, 2020Applicant: HITACHI, LTD.Inventors: Hiroki YAMADA, Yuichi IGARASHI, Kenzaburo FUJISHIMA, Takashi YANO, Masami OONISHI