Patents by Inventor Hirofumi Maruyama

Hirofumi Maruyama 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).

  • Publication number: 20220329249
    Abstract: An R/D conversion method includes a step of removing a frequency band including a frequency component that is twice an excitation frequency of excitation signals of a resolver (30) from a digital angle value (?). The R/D conversion method further includes a step of outputting, by the resolver (30), the resolver signals having a phase difference that corresponds to an angle of the resolver with respect to the excitation signals, respectively, and a step of feeding back the digital angle value (?) includes feeding back the digital angle value (?) to the resolver signals.
    Type: Application
    Filed: September 10, 2020
    Publication date: October 13, 2022
    Inventors: Hiroshi KUSHIHARA, Hirofumi MARUYAMA, Ryohei USHIKUSA, Shinichi ARAI
  • Patent number: 11253947
    Abstract: The present invention relates to a magnet wire bonding method and a bonding structure, and more particularly to a new improvement for ultrasonically bonding a longitudinal outer peripheral surface of a magnet wire having no entangling part to a flat surface of a flat part of a terminal pin. A magnet wire bonding method and structure, comprising: using a terminal pin (11) having a flat plate part (40) provided in a pin part (11a) as a terminal pin holding part (3); placing a magnet wire (13) in a longitudinally spread state on a flat surface (40a) of the flat plate part (40) without being entangled; and ultrasonically bonding an outer peripheral surface (13E) of the magnet wire (13) onto the flat surface (40a) with an ultrasonic horn (50).
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: February 22, 2022
    Assignee: TAMAGAWA SEIKI CO., LTD.
    Inventors: Hiroshi Kushihara, Kazuyuki Ishibashi, Hirofumi Maruyama, Shinichi Arai, Toshiki Muramatsu, Shinichi Hara, Katsutoshi Toyotake
  • Patent number: 11226792
    Abstract: A trigonometric function calculating device includes: an address generator that generates an address signal that is formed from plural bit strings and corresponds to a phase; a trigonometric function table that stores first sines and first cosines that respectively correspond to phases expressed by upper bits of the address signals, and second sines and a second cosines that respectively correspond to phases expressed by lower bits of the address signals; a calculation circuit that outputs, as a calculated value, a sine that corresponds to the address signal by calculating processing using the first sine, the first cosine, the second sine and the second cosine that correspond to the address signal and have been extracted by referring to the trigonometric function table; and a correcting section that corrects the calculated value on the basis of a correction value corresponding to the address signal.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: January 18, 2022
    Assignees: LAPIS SEMICONDUCTOR CO., LTD., TAMAGAWA SEIKI CO., LTD.
    Inventors: Masato Yamazaki, Hirofumi Maruyama
  • Patent number: 11190625
    Abstract: The present technology relates to a reception device, a data processing method, and a transmission/reception system capable of shortening time to output a packet. The reception device receives a transmission signal obtained by processing a multiplexed stream including a plurality of packets, analyzes transmission control information for controlling transmission of the transmission signal, decodes the transmission signal on the basis of an analysis result of the transmission control information, analyzes the multiplexed stream obtained by decoding the transmission signal and sets packet division information for dividing the packets from the multiplexed stream, the packet division information according to at least one of the analysis result of the transmission control information or an analysis result of the multiplexed stream, and divides the multiplexed stream into the packets on the basis of the set packet division information.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: November 30, 2021
    Assignee: SONY CORPORATION
    Inventors: Satoshi Okada, Yuichi Hirayama, Hirofumi Maruyama
  • Publication number: 20210195001
    Abstract: The present technology relates to a reception device, a data processing method, and a transmission/reception system capable of shortening time to output a packet. The reception device receives a transmission signal obtained by processing a multiplexed stream including a plurality of packets, analyzes transmission control information for controlling transmission of the transmission signal, decodes the transmission signal on the basis of an analysis result of the transmission control information, analyzes the multiplexed stream obtained by decoding the transmission signal and sets packet division information for dividing the packets from the multiplexed stream, the packet division information according to at least one of the analysis result of the transmission control information or an analysis result of the multiplexed stream, and divides the multiplexed stream into the packets on the basis of the set packet division information.
    Type: Application
    Filed: March 9, 2017
    Publication date: June 24, 2021
    Inventors: SATOSHI OKADA, YUICHI HIRAYAMA, HIROFUMI MARUYAMA
  • Publication number: 20210004207
    Abstract: A trigonometric function calculating device includes: an address generator that generates an address signal that is formed from plural bit strings and corresponds to a phase; a trigonometric function table that stores first sines and first cosines that respectively correspond to phases expressed by upper bits of the address signals, and second sines and a second cosines that respectively correspond to phases expressed by lower bits of the address signals; a calculation circuit that outputs, as a calculated value, a sine that corresponds to the address signal by calculating processing using the first sine, the first cosine, the second sine and the second cosine that correspond to the address signal and have been extracted by referring to the trigonometric function table; and a correcting section that corrects the calculated value on the basis of a correction value corresponding to the address signal.
    Type: Application
    Filed: June 29, 2020
    Publication date: January 7, 2021
    Applicants: LAPIS Semiconductor Co., Ltd., TAMAGAWA SEIKI Co., Ltd.
    Inventors: Masato YAMAZAKI, Hirofumi MARUYAMA
  • Patent number: 10631043
    Abstract: Communication reception that enables reception of a packet which may not contain an error without invalidating the same is disclosed. In one example, an information analyzing unit analyzes a data string and frame/slot information, and supplies TMCC information, slot header information, and data length information to a packet length indicating unit and a packet dividing unit. The packet length indicating unit defines the packet length in advance, and indicates the defined packet length to the packet dividing unit. The packet dividing unit performs packet division on the basis of the packet length obtained from the TMCC information, the slot header information, the data length information and the like from the information analyzing unit, and the packet length defined by the packet length indicating unit.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: April 21, 2020
    Assignee: Sony Corporation
    Inventors: Hirofumi Maruyama, Noriaki Ooishi, Yuichi Hirayama, Satoshi Okada
  • Publication number: 20200061735
    Abstract: The present invention relates to a magnet wire bonding method and a bonding structure, and more particularly to a new improvement for ultrasonically bonding a longitudinal outer peripheral surface of a magnet wire having no entangling part to a flat surface of a flat part of a terminal pin. A magnet wire bonding method and structure, comprising: using a terminal pin (11) having a flat plate part (40) provided in a pin part (11a) as a terminal pin holding part (3); placing a magnet wire (13) in a longitudinally spread state on a flat surface (40a) of the flat plate part (40) without being entangled; and ultrasonically bonding an outer peripheral surface (13E) of the magnet wire (13) onto the flat surface (40a) with an ultrasonic horn (50).
    Type: Application
    Filed: June 26, 2019
    Publication date: February 27, 2020
    Inventors: Hiroshi KUSHIHARA, Kazuyuki ISHIBASHI, Hirofumi MARUYAMA, Shinichi ARAI, Toshiki MURAMATSU, Shinichi HARA, Katsutoshi TOYOTAKE
  • Patent number: 10389393
    Abstract: The present technology relates to a reception device, a receiving method, and a program capable of improving a reception state. A delay wave by multipath is estimated on the basis of sensor information detected by a sensor unit, a replica of the delay wave is generated by a sum of products of a coefficient for each delay wave and a signal of a reception wave according to delay time on the basis of the estimated delay wave by the multipath, and the generated replica of the delay wave is subtracted from the signal of the reception wave, thereby removing the delay wave from the signal of the reception wave. The present technology may be applied to a receiver which receives a broadcast wave.
    Type: Grant
    Filed: August 17, 2016
    Date of Patent: August 20, 2019
    Assignee: Sony Corporation
    Inventors: Tomoya Kojima, Yuichi Hirayama, Shigeru Sawai, Hirofumi Maruyama, Takashi Horiguti, Bostamam Anas
  • Publication number: 20180352290
    Abstract: Communication reception that enables reception of a packet which may not contain an error without invalidating the same is disclosed. In one example, an information analyzing unit analyzes a data string and frame/slot information, and supplies TMCC information, slot header information, and data length information to a packet length indicating unit and a packet dividing unit. The packet length indicating unit defines the packet length in advance, and indicates the defined packet length to the packet dividing unit. The packet dividing unit performs packet division on the basis of the packet length obtained from the TMCC information, the slot header information, the data length information and the like from the information analyzing unit, and the packet length defined by the packet length indicating unit.
    Type: Application
    Filed: November 11, 2016
    Publication date: December 6, 2018
    Applicant: Sony Corporation
    Inventors: Hirofumi Maruyama, Noriaki Ooishi, Yuichi Hirayama, Satoshi Okada
  • Patent number: 10084472
    Abstract: The present invention relates to a phase modulation-type redundant two-phase-output resolver, an excitation signal (100) is applied to an excitation winding (50) of an annular stator (21) having a VR-type rotor (20) disposed therein, and a two-phase output signal (101) is outputted from first and second output windings (43, 44) that are provided in the annular stator (21), the excitation winding (50) is made up of first and second excitation windings (40, 41) of mutually different phases, and the excitation signal (100) has two phases, and even in a case where a break occurs in only any one winding from among the first and second excitation windings (40, 41) and the first and second output windings (43, 44), at least a one-phase output signal can be obtained.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: September 25, 2018
    Assignee: TAMAGAWA SEIKI CO., LTD.
    Inventors: Hiroshi Kushihara, Kazuyuki Ishibashi, Hirofumi Maruyama, Katsutoshi Toyotake, Shinichi Arai, Toshiki Muramatsu
  • Publication number: 20180248573
    Abstract: The present technology relates to a reception device, a receiving method, and a program capable of improving a reception 6state. A delay wave by multipath is estimated on the basis of sensor information detected by a sensor unit, a replica of the delay wave is generated by a sum of products of a coefficient for each delay wave and a signal of a reception wave according to delay time on the basis of the estimated delay wave by the multipath, and the generated replica of the delay wave is subtracted from the signal of the reception wave, thereby removing the delay wave from the signal of the reception wave. The present technology may be applied to a receiver which receives a broadcast wave.
    Type: Application
    Filed: August 17, 2016
    Publication date: August 30, 2018
    Inventors: Tomoya Kojima, Yuichi Hirayama, Shigeru Sawai, Hirofumi Maruyama, Takashi Horiguti, Bostamam Anas
  • Patent number: 9894890
    Abstract: Provided are a diagnosis marker, a diagnosis method, and a therapeutic agent suitable for diagnosing and treating amyotrophic lateral sclerosis (ALS). Also provided are an animal model and a cell model suitable for developing a therapeutic agent and a treatment method for ALS. The diagnosis method for ALS includes: an isolation step in which a nucleic acid is isolated from a specimen taken from a subject; a detection step in which bases expressed in a human chromosome 10 optineurin (OPTN) gene region are detected from the isolated nucleic acid; and a determination step in which it is determined whether or not the detected bases are mutated.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: February 20, 2018
    Assignee: HIROSHIMA UNIVERSITY
    Inventors: Hideshi Kawakami, Hirofumi Maruyama, Hiroyuki Morino
  • Patent number: 9800315
    Abstract: The present technology relates to a reception apparatus, a reception method, and a program capable of improving performance in diversity. The reception apparatus includes a plurality of demodulation units configured to demodulate a supplied branch and generate a symbol and a synthesis unit configured to synthesize the symbol demodulated by the plurality of demodulation units, in which the synthesis unit sets a predetermined time from arrival time of a first-arriving symbol as a search range, and synthesizes a symbol that arrives within the search range and the first-arriving symbol. The present technology can be applied to a mobile terminal apparatus that receives television broadcasting or the like with diversity system.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: October 24, 2017
    Assignee: SONY CORPORATION
    Inventors: Takashi Yokokawa, Satoshi Okada, Hirofumi Maruyama
  • Publication number: 20170053745
    Abstract: A method for manufacturing an electrolytic capacitor includes preparing a capacitor element that includes an anode body having a dielectric layer, and a separator including a cellulose fiber; impregnating the capacitor element with a first treatment solution containing a first solvent and conductive polymer particles; and impregnating, after impregnating the capacitor element with the first treatment solution, the capacitor element with a second treatment solution containing a second solvent at a state where the capacitor element includes the first solvent.
    Type: Application
    Filed: November 4, 2016
    Publication date: February 23, 2017
    Inventors: TATSUJI AOYAMA, TOMOYUKI TASHIRO, YUICHI NAKAJIMA, HIROFUMI MARUYAMA
  • Publication number: 20160338328
    Abstract: Provided are a diagnosis marker, a diagnosis method, and a therapeutic agent suitable for diagnosing and treating amyotrophic lateral sclerosis (ALS). Also provided are an animal model and a cell model suitable for developing a therapeutic agent and a treatment method for ALS. The diagnosis method for ALS includes: an isolation step in which a nucleic acid is isolated from a specimen taken from a subject; a detection step in which bases expressed in a human chromosome 10 optineurin (OPTN) gene region are detected from the isolated nucleic acid; and a determination step in which it is determined whether or not the detected bases are mutated.
    Type: Application
    Filed: August 8, 2016
    Publication date: November 24, 2016
    Inventors: Hideshi KAWAKAMI, Hirofumi MARUYAMA, Hiroyuki MORINO
  • Publication number: 20160261329
    Abstract: The present technology relates to a reception apparatus, a reception method, and a program that are capable of improving performance in diversity. A reception apparatus includes: a plurality of demodulation units that each demodulate a supplied branch and generate a symbol; a synthesis unit that synthesizes the symbols demodulated in the plurality of demodulation units and generates a synthesis symbol; an error correction unit that performs error correction of the synthesis symbol; and a smoothing unit that controls a transmission rate of the synthesis symbol from the synthesis unit to the error correction unit to fall within a certain range. The smoothing unit includes a buffer unit that holds the synthesis symbol from the synthesis unit, an input-time estimation unit that estimates a time at which the synthesis symbol is input from the synthesis unit, and an output-time generation unit that generates a time at which the synthesis symbol held in the buffer unit is output to the error correction unit.
    Type: Application
    Filed: October 10, 2014
    Publication date: September 8, 2016
    Inventors: NAOKI YOSHIMOCHI, HIROFUMI MARUYAMA, SATOSHI OKADA
  • Patent number: 9434992
    Abstract: Provided are a diagnosis marker, a diagnosis method, and a therapeutic agent suitable for diagnosing and treating amyotrophic lateral sclerosis (ALS). Also provided are an animal model and a cell model suitable for developing a therapeutic agent and a treatment method for ALS. The diagnosis method for ALS includes: an isolation step in which a nucleic acid is isolated from a specimen taken from a subject; a detection step in which bases expressed in a human chromosome 10 optineurin (OPTN) gene region are detected from the isolated nucleic acid; and a determination step in which it is determined whether or not the detected bases are mutated.
    Type: Grant
    Filed: March 3, 2014
    Date of Patent: September 6, 2016
    Assignee: HIROSHIMA UNIVERSITY
    Inventors: Hideshi Kawakami, Hirofumi Maruyama, Hiroyuki Morino
  • Publication number: 20160233943
    Abstract: The present technology relates to a reception apparatus, a reception method, and a program capable of improving performance in diversity. The reception apparatus includes a plurality of demodulation units configured to demodulate a supplied branch and generate a symbol, and a synthesis unit configured to synthesize the symbol demodulated by the plurality of demodulation units, to which the synthesis unit sets a predetermined time from arrival time of a first-arriving symbol as a search range, and synthesizes a symbol that arrives within the search range and the first-arriving symbol. The present technology can be applied to a mobile terminal apparatus that receives television broadcasting or the like with diversity system.
    Type: Application
    Filed: September 29, 2014
    Publication date: August 11, 2016
    Inventors: TAKASHI YOKOKAWA, SATOSHI OKADA, HIROFUMI MARUYAMA
  • Patent number: 9020023
    Abstract: The present technique relates to a reception device and a reception method which can improve equalization performance. An equalization processing unit has a time domain equalization unit which equalizes a received signal in a time domain and a frequency domain equalization unit which is provided in parallel to the time domain equalization unit and which equalizes the received signal in a frequency domain, and performs control of switching between the time domain equalization unit and the frequency domain equalization unit. The present technique can be applied to, for example, equalize a signal of data transmitted by way of single carrier transmission or data transmitted by way of multicarrier transmission.
    Type: Grant
    Filed: May 15, 2012
    Date of Patent: April 28, 2015
    Assignee: Sony Corporation
    Inventors: Katsumi Takaoka, Naoki Yoshimochi, Hidetoshi Kawauchi, Ryo Hasegawa, Hirofumi Maruyama