Patents by Inventor Takayuki Shimada

Takayuki Shimada 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).

  • Patent number: 10805905
    Abstract: Information on allocation of a bandwidth of uplink communication of each of user devices is extracted from information notified from an upper-level device on the uplink communication of the user devices. Correspondence information is created to indicate a correspondence among the upper-level device, the terminal device, the lower-level device, and the user device. A start time point of the uplink communication of the terminal device and an information amount of signals for which transmission of the uplink communication of the terminal device is allowed are allocated to the terminal device on the basis of the information on allocation of the bandwidth of the uplink communication of each of the user devices and the correspondence information.
    Type: Grant
    Filed: March 28, 2016
    Date of Patent: October 13, 2020
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Hiroshi Ou, Tatsuya Shimada, Takayuki Kobayashi, Jun Terada
  • Patent number: 10794478
    Abstract: A washer having such a thickness t that a value (L3?(L1+L2+t)) obtained by subtracting the sum of a first distance L1 in an axial direction between a leading end face of a friction member and a face of a lockup piston, a second distance L2 in the axial direction between a shell-side abutting face of a pump shell and a face of an outside extended portion of an output hub, and the thickness t in the axial direction of the washer, from a third distance L3 in the axial direction between an opposed face of a front cover and a cover-side abutting face of a tubular portion, is in a predetermined range larger than zero, is selected and placed between the lockup piston and the outside extended portion of the output hub.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: October 6, 2020
    Assignees: AISIN AW INDUSTRIES CO., LTD, AISIN AW CO., LTD.
    Inventors: Kenichi Muneda, Takao Shimada, Fumimasa Kasashima, Keigo Goto, Masaaki Yamaguchi, Kazuyoshi Ito, Kensuke Sakamoto, Takayuki Miyaoka
  • Patent number: 10763754
    Abstract: An object of the present invention is to provide a highly efficient power supply device. A power supply device 1 according to the present invention includes a bidirectional DC-DC converter 3 and an insulated DC-DC converter 4. The bidirectional DC-DC converter 3 receives a main battery 5 and outputs a direct-current link voltage Vlink. The insulated DC-DC converter 4 receives the link voltage Vlink and supplies power to a load 7. The link voltage Vlink, which is an output of the bidirectional DC-DC converter 3, changes according to the output voltage of the insulated DC-DC converter 4.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: September 1, 2020
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Takayuki Oouchi, Takae Shimada, Fumihiro Sato, Shintaro Tanaka, Kenji Kubo, Eigo Kishimoto
  • Patent number: 10691049
    Abstract: A fixing device includes a fixing rotator and a pressure rotator that is disposed opposite the fixing rotator. A nip former is disposed inside a loop formed by the fixing rotator and disposed opposite the pressure rotator via the fixing rotator to form a fixing nip between the fixing rotator and the pressure rotator. The fixing rotator slides over the nip former. A flange supports the fixing rotator at both lateral ends of the fixing rotator in a longitudinal direction of the fixing rotator. The nip former includes a base and a thermal conductor that has a thermal conductivity greater than a thermal conductivity of the base. The base is greater than the thermal conductor in the longitudinal direction of the fixing rotator. The base includes a groove that is disposed outboard at least from the thermal conductor in the longitudinal direction of the fixing rotator.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: June 23, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Ippei Fujimoto, Hiroyuki Shimada, Yoshiki Yamaguchi, Takashi Seto, Takayuki Seki
  • Publication number: 20200169322
    Abstract: An information transmitter apparatus for use in an information transmission system is provided, where the information transmission system includes the information transmitter apparatus and an information receiver apparatus. The information transmitter apparatus transmits a surface-shaped visible light signal using a light source, where the visible light signal is modulated according to a modulated signal modulated using a plurality of respective-order carriers different from each other, and the respective-order carriers has a fundamental frequency and multiple frequencies of a frame output signal of a video camera of rolling shutter system provided in an information receiver apparatus. The information receiver apparatus receives the visible light signal using the video camera.
    Type: Application
    Filed: July 2, 2018
    Publication date: May 28, 2020
    Inventors: Hiromichi HASHIZUME, Masanori SUGIMOTO, Takayuki AKIYAMA, Hayato KUMAKI, Shota SHIMADA
  • Patent number: 10574430
    Abstract: A relay transmission system includes a relay unit configured to relay uplink signals and downlink signals in the first and second communication systems, a time division duplex (TDD) information estimation unit configured to estimate a transmission period of network devices in the first communication system on the basis of the uplink or downlink signal of the first communication system that is relayed by the relay unit, a surplus bandwidth determination unit configured to determine a surplus bandwidth in which an uplink signal of the first communication system is not allocated to a relay target of the relay unit during the transmission period on the basis of the number of network devices and a maximum transmission capacity of the network devices, and a bandwidth allocation unit configured to allocate the uplink signal of the second communication system to the relay target of the relay unit in the surplus bandwidth.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: February 25, 2020
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Daisuke Hisano, Tatsuya Shimada, Hiroshi Ou, Takayuki Kobayashi
  • Patent number: 10571837
    Abstract: A fixing device includes a fixing rotator that is flexible, endless, and rotatable. A heater heats the fixing rotator. A pressure rotator is disposed opposite the fixing rotator. A nip former defines a fixing nip between the fixing rotator and the pressure rotator. A support supports the nip former. The nip former includes a back face that contacts the support and has a nonlinear shape in a longitudinal direction of the nip former.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: February 25, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Yoshiki Yamaguchi, Ippei Fujimoto, Hiroyuki Shimada, Takayuki Seki, Takashi Seto, Yoshiyuki Fukuda, Hiroshi Yoshinaga
  • Patent number: 10555330
    Abstract: A terminal station device is a terminal station device of a communication system in which a high-order device, the terminal station device, an end-terminal device, and a low-order device are communicably connected in this order, the high-order device notifies the low-order device of resource information indicating a resource that is usable in communication, and thereby the resource is allocated to the low-order device. The terminal station device includes: a band allocation unit that allocates a band that is permitted to be used by the end-terminal device for transmission processing to the terminal station device, based on an interval at which the terminal station device has received the resource information.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: February 4, 2020
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Hiroshi Ou, Takayuki Kobayashi, Daisuke Hisano, Tatsuya Shimada
  • Publication number: 20200033777
    Abstract: A fixing device includes a fixing rotator and a pressure rotator that is disposed opposite the fixing rotator. A nip former is disposed inside a loop formed by the fixing rotator and disposed opposite the pressure rotator via the fixing rotator to form a fixing nip between the fixing rotator and the pressure rotator. The fixing rotator slides over the nip former. A flange supports the fixing rotator at both lateral ends of the fixing rotator in a longitudinal direction of the fixing rotator. The nip former includes a base and a thermal conductor that has a thermal conductivity greater than a thermal conductivity of the base. The base is greater than the thermal conductor in the longitudinal direction of the fixing rotator. The base includes a groove that is disposed outboard at least from the thermal conductor in the longitudinal direction of the fixing rotator.
    Type: Application
    Filed: May 22, 2019
    Publication date: January 30, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Ippei FUJIMOTO, Hiroyuki SHIMADA, Yoshiki YAMAGUCHI, Takashi SETO, Takayuki SEKI
  • Patent number: 10541549
    Abstract: An object of the present invention is to provide a charging apparatus having high efficiency of charging a battery by inputting an alternating current voltage. A charging apparatus that charges a direct current battery includes a step-down converter unit to which a direct current voltage from a power supply is input and that converts the direct current voltage, and when a voltage of the direct current battery is between a predetermined first voltage smaller than a charge completion voltage of the direct current battery and the charge completion voltage, a variable voltage that increases from the first voltage to the charge completion voltage in accordance with charging of the direct current battery is input to the step-down converter unit.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: January 21, 2020
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Fumihiro Sato, Takae Shimada, Takuya Ishigaki, Takayuki Ouchi, Hiroyuki Shoji, Naoya Takahashi, Eigo Kishimoto
  • Publication number: 20200013019
    Abstract: A notification apparatus includes a registration unit that registers plural participants for each work, a positional information acquisition unit that acquires pieces of positional information of the participants, and a notification unit that notifies at least one participant out of the participants when a positional relationship between the participants is a predetermined positional relationship based on the pieces of positional information of the participants.
    Type: Application
    Filed: June 28, 2019
    Publication date: January 9, 2020
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Jun SHINGU, Toshiro SHIMADA, Atsushi ITO, Shinobu OZEKI, Takayuki TAKEUCHI
  • Patent number: 10530283
    Abstract: A motor controller capable of more reliably starting a stepping motor even if a predetermined drive power is supplied to the stepping motor, and to a control method for the stepping motor is provided. The motor controller driving a stepping motor detects that the stepping motor is in a step-out state after a start operation of the stepping motor is performed. If predetermined determination conditions are satisfied, when it is detected that the stepping motor is in a step-out state, it is determined that a restart operation of the stepping motor is performed, and the stepping motor is restarted.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: January 7, 2020
    Assignee: MINEBEA MITSUMI INC.
    Inventors: Ayaka Shimada, Takayuki Matsui, Kazuo Takada, Haruka Miyaji, Hideo Sano
  • Patent number: 10505657
    Abstract: Information on allocation of a bandwidth of uplink communication of each user device is extracted from information notified by an upper-level device on the uplink communication of the user devices. Identification information of a lower-level device connected to a terminal device and identification information of the user devices are stored in correlation with each other. A bandwidth demanded for uplink communication of the terminal device is determined on the basis of the information on the allocation of the bandwidth of the uplink communication of each of the user devices and the identification information of the user devices. A start time point of the uplink communication of the terminal device and the amount of information of signals for which transmission of the uplink communication of the terminal device is allowed are allocated to the terminal device on the basis of the bandwidth demanded for the uplink communication of the terminal device.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: December 10, 2019
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Hiroshi Ou, Tatsuya Shimada, Takayuki Kobayashi, Jun Terada
  • Patent number: 10461553
    Abstract: Provided is a power source device having a high efficiency. A power source device 1 includes an insulated AC-DC converter 2 which receives a voltage of an AC power source 10 and outputs a link voltage Vlink, a bidirectional DC-DC converter 3 which receives the link voltage Vlink to charge a main battery 5, an insulated DC-DC converter 4 which receives the link voltage Vlink to supply power to a load 7, an operation mode in which the power is supplied from the AC power source 10 to the main battery 5, and an operation mode in which the power is supplied from the main battery 5 to the load 7.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: October 29, 2019
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Takae Shimada, Hiroyuki Shoji, Takayuki Oouchi, Fumihiro Sato, Kenji Kubo, Eigo Kishimoto
  • Publication number: 20190286025
    Abstract: A fixing device includes a fixing rotator that is flexible, endless, and rotatable. A heater heats the fixing rotator. A pressure rotator is disposed opposite the fixing rotator. A nip former defines a fixing nip between the fixing rotator and the pressure rotator. A support supports the nip former. The nip former includes a back face that contacts the support and has a nonlinear shape in a longitudinal direction of the nip former.
    Type: Application
    Filed: January 4, 2019
    Publication date: September 19, 2019
    Applicant: Ricoh Company, Ltd.
    Inventors: Yoshiki YAMAGUCHI, lppei FUJIMOTO, Hiroyuki SHIMADA, Takayuki SEKI, Takashi SETO, Yoshiyuki FUKUDA, Hiroshi YOSHINAGA
  • Publication number: 20190237795
    Abstract: A fuel cell module includes: a cell stack apparatus including a cell stack including an array of a plurality of fuel cells, a manifold which feeds a fuel gas to each of the fuel cells, and a reformer which reforms a raw fuel; an oxygen-containing gas introduction plate which feeds an oxygen-containing gas to each of the fuel cells; and a housing which houses the cell stack apparatus and the oxygen-containing gas introduction plate. The housing includes a box having an open side and a lid which closes the open side of the box, and the box has a length of the open side which is greater than a maximum length of a projected plane of the cell stack apparatus as viewed from a lateral side of the cell stack apparatus.
    Type: Application
    Filed: June 15, 2017
    Publication date: August 1, 2019
    Inventors: Mitsuhiro NAKAMURA, Mitsutaka SHIMADA, Kyosuke YAMAUCHI, Naoki YOKOO, Takayuki MARUYAMA, Tatsuya KANBAYASHI
  • Publication number: 20190221869
    Abstract: A fuel cell apparatus includes a fuel cell module including a housing and a fuel cell housed in the housing, the fuel cell generating electric power with use of a fuel gas and an oxygen-containing gas; and a heat exchanger which carries out heat exchange between a medium and exhaust gas from the fuel cell module, the heat exchanger being arranged laterally to the housing.
    Type: Application
    Filed: January 20, 2017
    Publication date: July 18, 2019
    Inventors: Mitsuhiro NAKAMURA, Mitsutaka SHIMADA, Kyosuke YAMAUCHI, Takayuki MARUYAMA, Tatsuya KANBAYASHI
  • Patent number: 10331062
    Abstract: An image forming apparatus includes a fixing device that includes a heater to heat a fixing rotator, an opposed rotator to press against the fixing rotator to form a fixing nip therebetween, and at least one rotary body to convey a recording medium to the fixing nip. A controller rotates the fixing rotator in a forward direction to fix a toner image on the recording medium. The controller stops the heater and rotates the fixing rotator in a predetermined rotation direction when a failure occurs while the fixing device is activated. The controller determines that the predetermined rotation direction is the forward direction or a backward direction according to the at least one rotary body that sandwiches the recording medium, if the fixing nip and the at least one rotary body sandwich the recording medium simultaneously when the failure occurs while the fixing device is activated.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: June 25, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroshi Yoshinaga, Kenji Ishii, Hiroyuki Shimada, Ippei Fujimoto, Takashi Seto, Takayuki Seki, Kazunari Sawada
  • Publication number: 20190186630
    Abstract: A washer having such a thickness t that a value (L3?(L1+L2+t)) obtained by subtracting the sum of a first distance L1 in an axial direction between a leading end face of a friction member and a face of a lockup piston, a second distance L2 in the axial direction between a shell-side abutting face of a pump shell and a face of an outside extended portion of an output hub, and the thickness t in the axial direction of the washer, from a third distance L3 in the axial direction between an opposed face of a front cover and a cover-side abutting face of a tubular portion, is in a predetermined range larger than zero, is selected and placed between the lockup piston and the outside extended portion of the output hub.
    Type: Application
    Filed: June 27, 2017
    Publication date: June 20, 2019
    Applicants: AISIN AW INDUSTRIES CO., LTD, AISIN AW CO., LTD.
    Inventors: Kenichi MUNEDA, Takao SHIMADA, Fumimasa KASASHIMA, Keigo GOTO, Masaaki YAMAGUCHI, Kazuyoshi ITO, Kensuke SAKAMOTO, Takayuki MIYAOKA
  • Publication number: 20190182836
    Abstract: An optical transmission device includes a bandwidth allocator that periodically reads bandwidth request information indicating a bandwidth required for a termination device to transmit an uplink signal from a storage and allocates a bandwidth to the termination device on the basis of the read bandwidth request information, and a timing adjuster that adjusts a period at intervals of which the bandwidth allocator reads the bandwidth request information from the storage on the basis of the timing at which resource information used to generate the bandwidth request information is received from an upper device.
    Type: Application
    Filed: June 19, 2017
    Publication date: June 13, 2019
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Tatsuya SHIMADA, Takayuki KOBAYASHI, Hiroshi OU, Daisuke HISANO