Patents by Inventor Shigeru Uchida
Shigeru Uchida 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: 20240079743Abstract: A battery terminal has a two-piece configuration of different types of conductive materials. A first piece placed outside and a second piece placed inside with including a current collecting portion are fixed in two portions of a first fixing portion and a second fixing portion. The first fixing portion is positioned between the current collecting portion and the second fixing portion in a longitudinal direction in a shape of the terminal. Leaning of the current collecting portion with respect to a center in a short-side direction and leaning of the first fixing portion with respect to a center are opposite to each other.Type: ApplicationFiled: June 26, 2023Publication date: March 7, 2024Applicants: PRIMEARTH EV ENERGY CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA, PRIME PLANET ENERGY & SOLUTIONS, INC.Inventors: Shigeru MATSUMOTO, Yozo UCHIDA, Yuki SATO, Tsuyoshi EHARA
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Patent number: 11895044Abstract: A base station includes: a control unit that allocates one or more layers per terminal for transmission to one or more terminals, and configures positions in a frequency domain and a time domain of reference signals of each of the layers on the basis of at least one of information indicating a position of each of the terminals and information indicating condition of each of channel between the transmission device and the one or more terminals; a processing unit that arranges the reference signals of each of the layers in the frequency domain and the time domain on the basis of the positions in the frequency domain and the time domain configured by the control unit; and a precoding unit and a transmitting unit that perform space-division multiplexing on signals of one or more layers arranged by the processing unit, and transmit the multiplexed signals.Type: GrantFiled: January 8, 2021Date of Patent: February 6, 2024Assignee: Mitsubishi Electric CorporationInventors: Fumihiro Hasegawa, Akinori Taira, Shigeru Uchida, Noriyuki Fukui, Akihiro Okazaki, Hiroki Iura
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Patent number: 11894822Abstract: A filter device includes: delay units serially connected to delay an input signal and output a delayed signal; multiplication units multiplying the delayed signal by a filter coefficient based on a predetermined value and a multiplying factor adjustment value; a coefficient adjustment unit that, when a multiplication result obtained by multiplying the predetermined value by the multiplying factor adjustment value exceeds a maximum value of a filter-coefficient representation range, divides the multiplication result exceeding the maximum value by the maximum value, and outputs a quotient of division as a coefficient adjustment value; a signal conversion unit outputting a signal obtained by adding after-filter-coefficient-multiplication signals outputted by the multiplication units and an adjusted signal obtained by adjusting a corresponding delayed signal using the coefficient adjustment value; and a division unit generating an output signal by dividing the signal outputted by the signal conversion unit by theType: GrantFiled: April 11, 2022Date of Patent: February 6, 2024Assignee: Mitsubishi Electric CorporationInventors: Yasutaka Yamashita, Shigenori Tani, Kazuma Kaneko, Shigeru Uchida
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Patent number: 11765007Abstract: A signal specification identification apparatus includes processing circuitry that estimates the transmission rate of a received signal, performs sampling frequency conversion on the received signal, calculates a probability corresponding to each of a plurality of candidates for a specification of the received signal, selects a candidate using the respective probabilities, and calculates reliability corresponding to a selected candidate, determines whether to output the selected candidate as an identification result or perform the sampling frequency conversion again, based on the reliability, and changes a parameter indicating the ratio of the sampling frequency conversion when it is determined that the sampling frequency conversion is to be performed again. Processing is repeated until the processing circuitry determines that the selected candidate as the identification result is to be output.Type: GrantFiled: January 5, 2023Date of Patent: September 19, 2023Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Yasutaka Yamashita, Shigeru Uchida
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Publication number: 20230155868Abstract: A signal specification identification apparatus includes processing circuitry that estimates the transmission rate of a received signal, performs sampling frequency conversion on the received signal, calculates a probability corresponding to each of a plurality of candidates for a specification of the received signal, selects a candidate using the respective probabilities, and calculates reliability corresponding to a selected candidate, determines whether to output the selected candidate as an identification result or perform the sampling frequency conversion again, based on the reliability, and changes a parameter indicating the ratio of the sampling frequency conversion when it is determined that the sampling frequency conversion is to be performed again. Processing is repeated until the processing circuitry determines that the selected candidate as the identification result is to be output.Type: ApplicationFiled: January 5, 2023Publication date: May 18, 2023Applicant: Mitsubishi Electric CorporationInventors: Yasutaka Yamashita, Shigeru Uchida
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Publication number: 20220239283Abstract: A filter device includes: delay units serially connected to delay an input signal and output a delayed signal; multiplication units multiplying the delayed signal by a filter coefficient based on a predetermined value and a multiplying factor adjustment value; a coefficient adjustment unit that, when a multiplication result obtained by multiplying the predetermined value by the multiplying factor adjustment value exceeds a maximum value of a filter-coefficient representation range, divides the multiplication result exceeding the maximum value by the maximum value, and outputs a quotient of division as a coefficient adjustment value; a signal conversion unit outputting a signal obtained by adding after-filter-coefficient-multiplication signals outputted by the multiplication units and an adjusted signal obtained by adjusting a corresponding delayed signal using the coefficient adjustment value; and a division unit generating an output signal by dividing the signal outputted by the signal conversion unit by theType: ApplicationFiled: April 11, 2022Publication date: July 28, 2022Applicant: Mitsubishi Electric CorporationInventors: Yasutaka YAMASHITA, Shigenori TANI, Kazuma KANEKO, Shigeru UCHIDA
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Patent number: 11303406Abstract: The base station allocates, to one terminal, at least one transmission layer and allocates at least one resource block that is a minimum allocation unit of a communication resource in each transmission layer, to transmit a signal to the terminal, and includes processing units each associated with one of the transmission layers, the processing units being equal in number to the transmission layers. Each processing unit includes a reference signal generation unit to generate a reference signal to be used by the terminal in demodulation processing on a received signal, and an information processing unit to determine an arrangement of the resource block in which to transmit the reference signal to the terminal, based on at least one of a state of a channel between the base station and the terminal or information on the resource block to be used in transmission of the reference signal in an adjacent cell.Type: GrantFiled: April 27, 2017Date of Patent: April 12, 2022Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Fumihiro Hasegawa, Akinori Taira, Hiroki Iura, Shigeru Uchida, Mitsuru Mochizuki, Tadahiro Shimoda
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Patent number: 11196459Abstract: A reception device includes an equalization processing unit including a linear filter unit and a nonlinear filter unit and performing equalization process on a reception signal; a linear propagation channel estimation unit making propagation channel estimation using a known signal included in a reception signal to calculate a filter coefficient of the linear filter unit; and a synchronization processing unit performing synchronization process of correcting frequency deviation based on a signal output by the equalization processing unit, and when a predetermined condition is satisfied after executing first equalization process of outputting a reception signal filtered by the linear filter unit to the synchronization processing unit, the equalization processing unit starts second equalization process that is an adaptive equalization process of outputting a result of addition of a reception signal filtered by the linear filter unit and a reception signal filtered by the nonlinear filter unit to the synchronizatiType: GrantFiled: November 2, 2018Date of Patent: December 7, 2021Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Yasunori Noda, Shunsuke Uehashi, Katsuyuki Motoyoshi, Shigeru Uchida
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Patent number: 11184137Abstract: A lower base station according to the present invention includes: a CSI acquisition unit that acquires channel information indicating a channel state between the lower base station and one or more mobile terminals; a lower scheduler unit that transmits the channel information to a higher base station, and determines the number of signal streams and a modulation and coding scheme for a destination terminal that is a mobile terminal selected from among the one or more mobile terminals, based on the destination terminal and a data transmission rate for the destination terminal, sent for notification by the higher base station; and an MU-MIMO signal processing unit that performs Multi User-Multiple Input Multiple Output precoding for the mobile terminal.Type: GrantFiled: June 27, 2017Date of Patent: November 23, 2021Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Hiroshi Nishimoto, Akinori Taira, Shigeru Uchida
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Publication number: 20210135805Abstract: A base station includes: a control unit that allocates one or more layers per terminal for transmission to one or more terminals, and configures positions in a frequency domain and a time domain of reference signals of each of the layers on the basis of at least one of information indicating a position of each of the terminals and information indicating condition of each of channel between the transmission device and the one or more terminals; a processing unit that arranges the reference signals of each of the layers in the frequency domain and the time domain on the basis of the positions in the frequency domain and the time domain configured by the control unit; and a precoding unit and a transmitting unit that perform space-division multiplexing on signals of one or more layers arranged by the processing unit, and transmit the multiplexed signals.Type: ApplicationFiled: January 8, 2021Publication date: May 6, 2021Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Fumihiro HASEGAWA, Akinori TAIRA, Shigeru UCHIDA, Noriyuki FUKUI, Akihiro OKAZAKI, Hiroki IURA
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Publication number: 20210126757Abstract: A lower base station according to the present invention includes: a CSI acquisition unit that acquires channel information indicating a channel state between the lower base station and one or more mobile terminals; a lower scheduler unit that transmits the channel information to a higher base station, and determines the number of signal streams and a modulation and coding scheme for a destination terminal that is a mobile terminal selected from among the one or more mobile terminals, based on the destination terminal and a data transmission rate for the destination terminal, sent for notification by the higher base station; and an MU-MIMO signal processing unit that performs Multi User-Multiple Input Multiple Output precoding for the mobile terminal.Type: ApplicationFiled: June 27, 2017Publication date: April 29, 2021Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Hiroshi NISHIMOTO, Akinori TAIRA, Shigeru UCHIDA
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Publication number: 20210083731Abstract: A base station device that forms a plurality of beams TB necessary for covering the entire service area and transmits a communication signal in a time-division manner with each of the plurality of beams TB, and a terminal device that receives the beams TB emitted from the base station device are included. Communication from the base station device to the terminal device is performed with a beam-forming technique. The terminal device compares the received power value of the communication signal in each of the plurality of beams TB received from the base station device with the terminal allowable power value of the terminal device, and, on the basis of the comparison result, transmits a specific signal for selecting a beam TB from the plurality of beams TB to the base station device.Type: ApplicationFiled: November 30, 2020Publication date: March 18, 2021Applicant: Mitsubishi Electric CorporationInventors: Hideyuki NAKAMIZO, Kenichi TAJIMA, Akihiro OKAZAKI, Shigeru UCHIDA, Noriyuki FUKUI
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Publication number: 20210067223Abstract: A radio communication device includes: a transmission/reception unit capable of spatially multiplexing signals to be transmitted to a plurality of counterpart devices with one frequency, and transmitting the signals at the same time, by using a hybrid beamforming method combining analog beamforming and digital precoding, the counterpart devices being counterpart radio communication devices; and a control unit to determine a number of transmission array(s) to be allocated to each of the counterpart devices and a number of transmission(s) of reference signal(s) to be transmitted to each of the counterpart devices on the basis of channel state information fed back from each of the counterpart devices.Type: ApplicationFiled: November 12, 2020Publication date: March 4, 2021Applicant: MITSUBISHI ELECTRIC CORPORATIONInventor: Shigeru UCHIDA
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Patent number: 10931413Abstract: A base station (1) according to the present invention includes: a control unit (10) that allocates one or more layers per terminal for transmission to one or more terminals, and configures positions in a frequency domain and a time domain of reference signals of each of the layers on the basis of at least one of information indicating a position of each of the terminals and information indicating condition of each of channel between the transmission device and the one or more terminals; a processing unit (12-1 to 12-N) that arranges the reference signals of each of the layers in the frequency domain and the time domain on the basis of the positions in the frequency domain and the time domain configured by the control unit (10); and a precoding unit (13) and a transmitting unit (14) that perform space-division multiplexing on signals of one or more layers arranged by the processing unit (12-1 to 12-N), and transmit the multiplexed signals.Type: GrantFiled: December 7, 2016Date of Patent: February 23, 2021Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Fumihiro Hasegawa, Akinori Taira, Shigeru Uchida, Noriyuki Fukui, Akihiro Okazaki, Hiroki Iura
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Publication number: 20210050883Abstract: A reception device includes an equalization processing unit including a linear filter unit and a nonlinear filter unit and performing equalization process on a reception signal; a linear propagation channel estimation unit making propagation channel estimation using a known signal included in a reception signal to calculate a filter coefficient of the linear filter unit; and a synchronization processing unit performing synchronization process of correcting frequency deviation based on a signal output by the equalization processing unit, and when a predetermined condition is satisfied after executing first equalization process of outputting a reception signal filtered by the linear filter unit to the synchronization processing unit, the equalization processing unit starts second equalization process that is an adaptive equalization process of outputting a result of addition of a reception signal filtered by the linear filter unit and a reception signal filtered by the nonlinear filter unit to the synchronizatiType: ApplicationFiled: November 2, 2018Publication date: February 18, 2021Applicant: Mitsubishi Electric CorporationInventors: Yasunori NODA, Shunsuke UEHASHI, Katsuyuki MOTOYOSHI, Shigeru UCHIDA
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Patent number: 10886980Abstract: A wireless communication apparatus includes a primary selection unit that selects a plurality of candidate terminals from among a plurality of terminals, based on signal-to-interference noise ratios of signals received from the plurality of terminals, a secondary selection unit that selects a plurality of transmission destination terminals from among the plurality of candidate terminals, based on channel estimate values of the candidate terminals, and a transmission processing unit that spatially multiplexes signals to be transmitted to the plurality of transmission destination terminals selected by the secondary selection unit, simultaneously on the same frequency.Type: GrantFiled: March 8, 2017Date of Patent: January 5, 2021Assignee: MITSUBISHI ELECTRIC CORPORATIONInventor: Shigeru Uchida
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Patent number: 10710153Abstract: Provided is a method for filling a stem-side hollow area of an engine valve with metallic sodium. The method includes injecting melted metallic sodium into a cylinder having a larger diameter than an inner diameter of the hollow area of the engine valve, forming a solidified metallic sodium rod having a substantially uniform structure in the cylinder, inserting the metallic sodium into the hollow area of the engine valve through a nozzle having a small diameter, and sealing the engine valve.Type: GrantFiled: January 29, 2016Date of Patent: July 14, 2020Assignees: NITTAN VALVE CO., LTD., SUKEGAWA ELECTRIC CO., LTD.Inventors: Shigeru Uchida, Ryo Onose, Koichi Homma, Kuniaki Miura, Masashige Hanawa
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Patent number: D894618Type: GrantFiled: March 4, 2019Date of Patent: September 1, 2020Assignee: Adrian.Uchida Company Ltd.Inventor: Shigeru Uchida
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Patent number: D904092Type: GrantFiled: March 4, 2019Date of Patent: December 8, 2020Assignee: Adrian.Uchida Company Ltd.Inventor: Shigeru Uchida
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Patent number: D906743Type: GrantFiled: March 4, 2019Date of Patent: January 5, 2021Assignee: Adrian.Uchida Company Ltd.Inventor: Shigeru Uchida