Patents by Inventor Hiroshi Fujimoto
Hiroshi 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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Patent number: 11491666Abstract: A control system according to an embodiment includes a motor configured to drive a link, a first sensor configured to detect information about the driving by the motor or information about a relation between the driving means and the load member as first sensor information, a second sensor configured to detect information about a displacement of the link as second sensor information, and a control unit configured to perform feedback control of the driving means so as to follow a command value in a two-inertial system model including an inertial system on a load side and an inertial system on a driving side. The control unit includes a disturbance observer configured to estimate a disturbance, and a filter configured to convert an estimated value of the disturbance into a driving force of the motor.Type: GrantFiled: October 17, 2019Date of Patent: November 8, 2022Assignees: THE UNIVERSITY OF TOKYO, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroshi Fujimoto, Akiyuki Hasegawa, Taro Takahashi
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Patent number: 11494554Abstract: A function execution instruction system includes a function execution instruction unit configured to instruct execution of one or more functions, a sentence input unit configured to input a sentence, an execution function determination unit configured to determine a function the execution of which is instructed on the basis of an input sentence, a time information extraction unit configured to extract time information indicating a time from the input sentence, and a time specification unit configured to, in accordance with a determined function, specify a time used for the execution of the function on the basis of extracted time information wherein the function execution instruction unit instructs the execution of the determined function, which uses a specified time.Type: GrantFiled: December 4, 2018Date of Patent: November 8, 2022Assignee: NTT DOCOMO, INC.Inventors: Hiroshi Fujimoto, Kousuke Kadono
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Patent number: 11468106Abstract: A conversation device includes: an inquiry unit configured to output an inquiry including presentation of a key; an acquisition unit configured to acquire an answer; a key accumulating unit configured to accumulate keys included in the inquiry as accumulation keys in a case in which a positive answer for the inquiry is acquired; a candidate question sentence extracting unit configured to extract candidate question sentences including the accumulation keys by referring to a question sentence storing unit configured to store a question sentence and a set of keys included in the question sentence in association with each other; a key selecting unit configured to select an inquiry key that is caused to be included in a next inquiry output by the inquiry unit among a plurality of keys included in the candidate question sentences; and an output unit configured to output one question sentence among the candidate question sentences.Type: GrantFiled: December 28, 2018Date of Patent: October 11, 2022Assignee: NTT DOCOMO, INC.Inventors: Yuriko Ozaki, Hiroshi Fujimoto, Takanori Hashimoto
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Patent number: 11429672Abstract: An object is to provide a dialogue server capable of removing an unnecessary keyword from a truth table. A dialogue server 100 includes a truth table generation unit 105 extracting one or a plurality of keywords characterizing response content composed of a sentence on the basis of the response content and generating a truth table associating one or a plurality of keywords, from which an unnecessary keyword based on a predetermined condition is removed, of the one or the plurality of keywords, with the response content; a storage unit storing a truth table database 107; and an acquisition unit 102 searching for corresponding response content or a keyword for urging a user to make an additional input on the basis of the truth table database 107 upon reception of an input keyword from the user and transmitting the response content or the keyword to the user.Type: GrantFiled: December 28, 2018Date of Patent: August 30, 2022Assignee: NTT DOCOMO, INC.Inventors: Yuriko Ozaki, Hiroshi Fujimoto, Takanori Hashimoto
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Publication number: 20220266702Abstract: A wireless power receiving system includes: a power receiving device having a power receiving coil configured to receive electric power supplied wirelessly from a power transmission coil of a power transmission device installed on a road surface, at least part of the power receiving coil being contained in a vehicle wheel; and in-vehicle devices installed in a mobile object, the in-vehicle devices being energizably connected to the power receiving device. The power receiving device transmits the received electric power to the in-vehicle devices.Type: ApplicationFiled: July 22, 2020Publication date: August 25, 2022Applicants: THE UNIVERSITY OF TOKYO, BRIDGESTONE CORPORATION, NSK Ltd.Inventors: Hiroshi FUJIMOTO, Takehiro IMURA, Osamu SHIMIZU, Katsuhiro HATA, Keizo AKUTAGAWA, Yasumichi WAKAO, Isao KUWAYAMA, Daisuke GUNJI
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Patent number: 11366435Abstract: A control device to perform feedback control based on a current value, and output a first voltage value includes a feedforward controller using an inverse model of a plant; a feedforward voltage corrector to correct a voltage disturbance due to a modeling error between the plant and a model of the plant; a repetitive controller to learn periodic current disturbances; and a switch. The switch is ON when the current response is in a steady state, and the repetitive controller learns the disturbances and corrects a command current value. A feedback controller outputs the first voltage value by performing the feedback control based on a current value from the corrected command current value, and inputs the command current value to the inverse model to generate a second voltage value. The control device outputs a sum of the first and the second voltage value as a command voltage value.Type: GrantFiled: April 4, 2018Date of Patent: June 21, 2022Assignees: NIDEC CORPORATION, THE UNIVERSITY OF TOKYOInventors: Hiroshi Fujimoto, Linfeng Lan, Tomonari Mori, Masanori Watahiki
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Publication number: 20220149666Abstract: A dynamic wireless power transfer system includes a power transmission coil, a power transmission circuit, a power reception coil, a power reception circuit, and a relay circuit. The power transmission coil is provided in a road. The power transmission circuit supplies electric power to the power transmission coil. The power reception coil is provided in a vehicle. The power reception circuit is connected to the power reception coil. The relay circuit transfers electric power between the power transmission coil and the power reception coil in a contactless manner.Type: ApplicationFiled: January 26, 2022Publication date: May 12, 2022Applicants: DENSO CORPORATION, The University of TokyoInventors: Hayato SUMIYA, Eisuke TAKAHASHI, Nobuhisa YAMAGUCHI, Masaya TAKAHASHI, Hiroshi FUJIMOTO, Osamu SHIMIZU
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Publication number: 20220102586Abstract: A light-emitting element includes: a semiconductor stack having a triangular shape in a top plan view, the semiconductor stack including a first semiconductor layer, a second semiconductor layer, and an active layer between the first and seconds semiconductor layers; a first electrode located on the first semiconductor layer and including a first connecting portion and a first extension extending from the first connecting portion; and a second electrode located on the second semiconductor layer and including a second connecting portion and a second extension extending from the second connecting portion. The first extension includes a first portion extending from the first connecting portion toward the second connecting portion. The second extension includes a second portion including a portion extending along a first side, a third portion including a portion extending along a second side, and fourth and fifth portions each including a portion extending along a third side.Type: ApplicationFiled: September 20, 2021Publication date: March 31, 2022Applicant: NICHIA CORPORATIONInventors: Hiroshi FUJIMOTO, Keiji EMURA, Hidetoshi TANAKA
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Publication number: 20220024012Abstract: A fluid pressure hitting device comprises a piston inserted in a cylinder, a chisel, and a first, second, and third chambers. The chisel is fitted in the cylinder such that a part of the chisel projects from one axial end of the cylinder and is configured to further project from that axial end due to being hit by the piston as the piston slides toward the one axial end. The first through third chambers are partitioned by an inner peripheral surface of the cylinder and an outer peripheral surface of the piston. The first through third chambers are arranged in the axial direction in order fluid the one axial end to another axial end of the cylinder. A flow path is configured to supply fluid from a fluid supply portion when the piston hits the chisel, to the first chamber.Type: ApplicationFiled: November 7, 2019Publication date: January 27, 2022Applicant: TEISAKU CORPORATIONInventors: Masanori ITO, Hiroshi FUJIMOTO
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Publication number: 20210382713Abstract: According to one embodiment, an electronic calculator includes a processor. The processor is configured to display a screen image on which a first area displaying a source code and a second area displaying a diagram representing at least a part of the source code are arranged and edit the diagram displayed in the second area.Type: ApplicationFiled: August 25, 2021Publication date: December 9, 2021Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Hirotaka TOYA, Mamoru AOKI, Hiroshi FUJIMOTO
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Patent number: 11132194Abstract: According to one embodiment, an electronic calculator includes a processor. The processor is configured to display a screen image on which a first area displaying a source code and a second area displaying a diagram representing at least a part of the source code are arranged and edit the diagram displayed in the second area.Type: GrantFiled: March 13, 2019Date of Patent: September 28, 2021Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Hirotaka Toya, Mamoru Aoki, Hiroshi Fujimoto
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Publication number: 20210286949Abstract: Provided is a dialogue system where appropriate dialogue is conducted for a user when acquiring a question sentence in FAQ or the like. A key question sentence generation unit extracts one key from an answer database based on an initial key and generates a key question sentence. An output unit transmits an ask-back sentence including the key question sentence containing the one key and one or a plurality of initial keys to a user terminal. The output unit further transmits the initial key as an acquired key used for extracting the one key to the user terminal. By such processing, dialogue processing is performed by key input and an ask-back sentence in response to the key input.Type: ApplicationFiled: April 4, 2018Publication date: September 16, 2021Applicant: NTT DOCOMO, INC.Inventors: Takanori HASHIMOTO, Yuriko OZAKI, Hiroshi FUJIMOTO
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Publication number: 20210157988Abstract: The dialogue system includes a keyword acquisition unit configured to acquire an input key group containing one or a plurality of input keywords on the basis of an input of a character string, a category generation unit configured to classify the resulting sentence candidates into a plurality of categories on the basis of a comparison between the input key group acquired by the keyword acquisition unit and the storage key group contained in an FAQ database, an intra-category ranking determination unit configured to determine a priority ranking of the resulting sentence candidates within each of the categories, and a presentation unit configured to select a resulting sentence candidate of a highest priority ranking determined by the intra-category ranking determination unit from within a category of a highest priority ranking determined in advance, and present a response for prompting a user to make an additional input.Type: ApplicationFiled: January 11, 2019Publication date: May 27, 2021Applicant: NTT DOCOMO, INC.Inventors: Takanori HASHIMOTO, Hiroshi FUJIMOTO, Yuriko OZAKI
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Publication number: 20210124879Abstract: The dialogue system includes a ranking determination unit configured to determine a priority ranking of the resulting sentence candidates on the basis of a degree of coincidence between the input key group and the storage key group, and a presentation unit configured to present a response for prompting a user to make an additional input on the basis of a resulting sentence candidate of a highest priority ranking. In a case where there is the stored keyword which is in a predetermined correspondence relation with the character string, the keyword acquisition unit acquires the input keyword obtained by adding additional information to the stored keyword. In a case where the additional information is added to the input keyword, the ranking determination unit reduces an influence of the input keyword to which the additional information is added on the degree of coincidence.Type: ApplicationFiled: January 11, 2019Publication date: April 29, 2021Applicant: NTT DOCOMO, INC.Inventors: Takanori HASHIMOTO, Hiroshi FUJIMOTO, Yuriko OZAKI
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Publication number: 20210103258Abstract: A control device that outputs a command voltage value includes: a feedback controller to perform feedback control based on a current value, and output a first voltage value; a feedforward controller established by using an inverse model of a plant to be controlled; a feedforward voltage corrector to correct a voltage disturbance that occurs due to a modeling error between a plant model and the actual plant; a repetitive controller to learn periodic current disturbances; and a switch to control input/output to the repetitive controller. The switch is turned ON when the current response is in a steady state, and the repetitive controller learns the current disturbances and corrects a command current value. The feedback controller outputs the first voltage value by performing the feedback control based on a current value that is acquired from the corrected command current value. The feedforward controller inputs the command current value to the inverse model to generate a second voltage value.Type: ApplicationFiled: April 4, 2018Publication date: April 8, 2021Inventors: Hiroshi FUJIMOTO, Linfeng LAN, Tomonari MORI, Masanori WATAHIKI
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Publication number: 20210097236Abstract: An object is to provide an interaction server in which inputs of an input keyword are reduced and the number of exchanges in interaction is reduced as a result. An interaction server 100 includes a truth table 104 configured to have question sentences including a sentence to be provided to a user and a plurality of searching keywords associated with, and a relational table 105 configured to have one main keyword and a plurality of related keywords related to the main keyword associated with each other. A search unit 102 acquires at least one of the one main keyword and any of the plurality of related keywords listed in the relational table 105 on the basis of an input keyword, further performs searching in the truth table 104 using the main keyword and/or the related keyword which has been acquired, and acquires a question sentence candidate which is response content corresponding to the main keyword or the related keyword.Type: ApplicationFiled: December 28, 2018Publication date: April 1, 2021Applicant: NTT DOCOMO, INC.Inventors: Hiroshi FUJIMOTO, Takanori HASHIMOTO, Yuriko OZAKI
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Publication number: 20210034680Abstract: An object is to provide a dialogue server capable of removing an unnecessary keyword from a truth table. A dialogue server 100 includes a truth table generation unit 105 extracting one or a plurality of keywords characterizing response content composed of a sentence on the basis of the response content and generating a truth table associating one or a plurality of keywords, from which an unnecessary keyword based on a predetermined condition is removed, of the one or the plurality of keywords, with the response content; a storage unit storing a truth table database 107; and an acquisition unit 102 searching for corresponding response content or a keyword for urging a user to make an additional input on the basis of the truth table database 107 upon reception of an input keyword from the user and transmitting the response content or the keyword to the user.Type: ApplicationFiled: December 28, 2018Publication date: February 4, 2021Applicant: NTT DOCOMO, INC.Inventors: Yuriko OZAKI, Hiroshi FUJIMOTO, Takanori HASHIMOTO
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Patent number: D924865Type: GrantFiled: March 26, 2020Date of Patent: July 13, 2021Assignee: ALPINE ELECTRONICS, INC.Inventors: Hideki Endo, Hiroshi Fujimoto
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Patent number: D939470Type: GrantFiled: March 26, 2020Date of Patent: December 28, 2021Assignee: ALPINE ELECTRONICS, INC.Inventors: Hideki Endo, Hiroshi Fujimoto
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Patent number: D945982Type: GrantFiled: March 26, 2020Date of Patent: March 15, 2022Assignee: ALPINE ELECTRONICS, INC.Inventors: Hideki Endo, Hiroshi Fujimoto