Patents by Inventor Ryo Shimizu

Ryo Shimizu 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: 10301827
    Abstract: In a bonding structure for bonding a bonding attachment, having an insertion hole formed to allow insertion of a rebar therein, to the rebar, an application liquid mixed with a granular fine powder is previously applied on the rebar or the inside of the insertion hole of the bonding attachment, and then the bonding attachment is bonded to the rebar inserted in the insertion hole. Thereby, the granular fine powder is disposed on the contact surfaces of the bonding attachment and the rebar inserted in the insertion hole of the bonding attachment, increasing the friction force to resist against the force to pull the inserted rebar out from the insertion hole.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: May 28, 2019
    Assignee: Fujio Bolt Manufacturing Co. Ltd.
    Inventors: Fujio Yamazaki, Norio Matsubara, Ryo Shimizu
  • Publication number: 20190113684
    Abstract: There is provided an integration-type optical modulation device which performs polarization-beam-combining on two linearly polarized light beams respectively output from a plurality of optical modulation elements and outputs the resultant beam so as to seek an improvement and stabilization of optical characteristics, miniaturization, and low cost.
    Type: Application
    Filed: March 24, 2017
    Publication date: April 18, 2019
    Inventors: Hara TOKUTAKA, Ryo SHIMIZU
  • Publication number: 20190113683
    Abstract: There is provided an integration-type optical modulation device which performs polarization-beam-combining on two linearly polarized light beams respectively output from a plurality of optical modulation elements and outputs the resultant beam so as to seek an improvement and stabilization of optical characteristics, miniaturization, and low cost.
    Type: Application
    Filed: March 24, 2017
    Publication date: April 18, 2019
    Inventors: Hara TOKUTAKA, Ryo SHIMIZU
  • Patent number: 10247966
    Abstract: Provided is an optical modulator module in which a modulation substrate having a plurality of optical modulation units is stored inside a package case. The optical modulator module includes a plurality of signal supply lines configured to supply a modulation signal to the optical modulation unit through a connector terminal which is introduced into the package case. At least two or more of the plurality of signal supply lines are set such that the signal supply lines have overall electrical lengths which are different from each other.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: April 2, 2019
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Kei Kato, Norikazu Miyazaki, Ryo Shimizu
  • Publication number: 20190098744
    Abstract: An optical modulator with FPC and optical transmission device using the same are provided. This optical modulator includes a flexible printed circuit which electrically connects the optical modulator to a circuit board. The flexible printed circuit has a substantially quadrilateral shape. A pad is formed on the flexible printed circuit along one side of the substantially quadrilateral shape so as to be electrically connected to the circuit board. In order to release the mechanical stress applied onto the side or the end portion of the flexible printed circuit and/or to prevent propagation of distortion generated in the side or the end portion, the flexible printed circuit has: a cutout or a notch provided in a direction from a part of at least one side toward the inside of the flexible printed circuit; and/or a curved portion connecting at least two adjacent sides.
    Type: Application
    Filed: September 15, 2016
    Publication date: March 28, 2019
    Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Norikazu MIYAZAKI, Ryo SHIMIZU, Toru SUGAMATA
  • Patent number: 10239517
    Abstract: A controller of a hybrid vehicle includes: a control unit configured to activate a starter device for starting any one of a drive motor and an engine by stepping up electric power from a battery by a voltage transformer. The control unit includes a limitation part that limits passing power of the voltage transformer when the temperature of the voltage transformer rises, and a calculation part that obtains a maximum electric power that can be supplied to the drive motor when the starter device is activated, by subtracting a consumed power of the starter device from limited power during limitation of passing power by the limitation part. The control unit activates the starter device and starts the engine, when required power of the drive motor reaches the maximum electric power calculated by the calculation part during limitation of passing power by the limitation part.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: March 26, 2019
    Assignee: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventors: Naoki Miyamoto, Norihiko Ikoma, Makoto Kamachi, Ryo Shimizu, Hironori Abe
  • Patent number: 10218283
    Abstract: When a pulse generator detects that a switching transistor on a primary side of a DC/DC converter turns off, the pulse generator sets a pulse signal S1 to an on level configured as an instruction to turn on a synchronous rectification transistor. When the pulse generator detects that the current that flows through the secondary winding of a transformer becomes substantially zero, the pulse generator sets the pulse signal S1 to an off level configured as an instruction to turn off the synchronous rectification transistor. After a predetermined time-up period elapses after the detection of the turn-on of the switching transistor, a forced turn-off circuit forcibly turns off the synchronous rectification transistor.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: February 26, 2019
    Assignee: ROHM CO., LTD.
    Inventors: Hiroki Kikuchi, Ryo Shimizu
  • Patent number: 10191760
    Abstract: A non-transitory computer-readable storage medium storing therein a proxy response program that causes a computer to execute a process includes requesting suspension or pausing of a virtual machine when an idle state of the virtual machine is detected, changing, when the virtual machine is suspended or paused, settings information of a communication control device between a terminal device and the virtual machine, so as to transfer access from the terminal device to the virtual machine, to the computer; sending, when the access to the virtual machine that is suspended or paused is transferred, a response to the terminal device on the basis of communication response settings information relating to a communication response to the terminal device by the virtual machine that is suspended or paused; and requesting resumption of the virtual machine that is suspended or paused in response to the transfer of the access.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: January 29, 2019
    Assignee: Fujitsu Limited
    Inventors: Kazuma Kitano, Yosuke Kondo, Ryo Shimizu, Satoshi Oyu, Tomoaki Masuda
  • Publication number: 20190004249
    Abstract: To realize additional improvement and stabilization of optical characteristics, miniaturization, and low cost in an integration-type optical modulation device that includes a plurality of optical modulation elements, combines two modulated and linearly polarized light beams emitted from each of the modulation elements into one light beam. The optical modulation device includes two optical modulation elements (120a and 120b) each of which outputs two linearly polarized light beams; and four lenses (140a and the like) which respectively receive four linearly polarized light beams output from the two optical modulation elements. A distance between the two linearly polarized light beams which are output from one of the optical modulation elements and respectively pass through two of the lenses, and the two linearly polarized light beams which are output from the other optical modulation element and respectively pass through two of the lenses is set to gradually increase along a propagation direction.
    Type: Application
    Filed: September 16, 2016
    Publication date: January 3, 2019
    Inventors: Tokutaka HARA, Ryo SHIMIZU
  • Publication number: 20190006949
    Abstract: An external circuit element RSET is connected in use to an SET terminal. A synchronous rectification controller generates a pulse signal Si based on a control time determined according to the state of the SET terminal. A driver switches on and off the synchronous rectification transistor according to the pulse signal S1. An abnormal state detection circuit is capable of detecting an open-circuit state and/or a short-circuit state that can occur in the SET terminal. When the abnormal state detection circuit detects such an open-circuit state and/or short-circuit state, the abnormal state detection circuit asserts a detection signal S11. When the detection signal S11 is asserted, a primary-side controller arranged on the primary side of the DC/DC converter is instructed to suspend the switching operation of a switching transistor.
    Type: Application
    Filed: August 10, 2018
    Publication date: January 3, 2019
    Inventors: Hiroki KIKUCHI, Ryo SHIMIZU
  • Patent number: 10160441
    Abstract: A power controller of a hybrid vehicle includes: a first drive motor that drives any one of a front wheel and a rear wheel of a vehicle; an engine that drives the one wheel or the corresponding other one of the front wheel and the rear wheel of the vehicle through a clutch; a generator that is driven by the engine; and a voltage transformer that steps down generated electric power supplied to the first drive motor and a battery from the generator. The power controller limits passing power of the voltage transformer according to the temperature of the voltage transformer, and connects the clutch when the passing power of the voltage transformer is limited.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: December 25, 2018
    Assignee: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventors: Makoto Kamachi, Ryo Shimizu, Norihiko Ikoma, Hironori Abe, Naoki Miyamoto
  • Patent number: 10124950
    Abstract: A dispersing tray is mounted to a combination scale at a top part thereof to disperse and deliver supplied articles outwardly. The dispersing tray has, on a back surface thereof, a liquid stopper that prevents outward movement of a liquid.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: November 13, 2018
    Assignee: Yamato Scale Co., Ltd.
    Inventors: Koji Morimoto, Ryo Shimizu
  • Publication number: 20180315633
    Abstract: A workpiece conveyance apparatus having: a conveyance path on which the workpiece moves; a gas flotation section that gas-floats the workpiece over the conveyance path; a movable holding section that holds the workpiece to move on the conveyance path along with the workpiece; and a treatment region conveyance path that is located on the conveyance path, and has a treatment region where predetermined treatment for the workpiece is performed, wherein the movable holding section has at least two or more holding sections along a movement direction of the conveyance path, each of the holding sections is capable of switching between release of holding and holding for the workpiece during movement of the workpiece, operation for releasing holding of the workpiece by the holding section on the treatment region conveyance path, and holding the workpiece on the conveyance path other than the treatment region conveyance path.
    Type: Application
    Filed: October 25, 2016
    Publication date: November 1, 2018
    Applicant: THE JAPAN STEEL WORKS, LTD.
    Inventors: Ryo SHIMIZU, Miki SAWAI, Hirotaka SAZUKA, Daisuke ITO
  • Patent number: 10093305
    Abstract: In a hybrid vehicle including a front motor for driving front wheels, and a step-up converter for stepping up voltage from a battery to supply power to the front motor, in which power regenerated by rotational force of the front wheel during vehicle deceleration is stepped down by a step-up converter and can be supplied to a battery, the hybrid vehicle includes a hybrid control unit which computes maximum input power of the step-up converter and regenerated power of the front motor during vehicle deceleration, and sets a difference obtained by subtracting regenerated power of the front motor from the maximum input power of the step-up converter to the maximum generated power of the generator.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: October 9, 2018
    Assignee: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventors: Ryo Shimizu, Norihiko Ikoma, Makoto Kamachi, Hironori Abe, Naoki Miyamoto
  • Patent number: 10086825
    Abstract: In a hybrid vehicle including: a step-up converter for stepping-up the voltage from a battery and supplying power to the front motor for driving front wheels; as well as a paddle switch for setting regenerative braking torque stepwisely, and a hybrid control unit for calculating a regenerative braking force based on a selection stage set by the paddle switch, the hybrid control unit decreases the regenerative braking force to be less than the regenerative braking force while the maximum input/output power of the step-up converter is not limited, when a selection stage in which regenerative braking force is more than that in a D range is selected while the maximum input/output power of the step-up converter is limited.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: October 2, 2018
    Assignee: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventors: Ryo Shimizu, Norihiko Ikoma, Makoto Kamachi, Hironori Abe, Naoki Miyamoto
  • Patent number: 10079547
    Abstract: A synchronous rectifying controller on secondary side of insulating synchronous rectifying converter to control synchronous rectifying transistor, comprising: first comparator to compare drain voltage of the transistor with first negative threshold voltage, and assert set signal based on the comparison of them; second comparator to compare drain voltage with second negative threshold voltage, and assert reset signal based on the comparison of them; third comparator to compare drain voltage with third positive threshold voltage, and assert release signal based on the comparison of them; control circuit set in response to the assertion of the set signal and to adjust control pulse to have ON level, and reset in response to the assertion of the reset signal and to adjust the control pulse to have OFF level; and driver to drive the transistor, wherein set operation of the control circuit is inhibited until the release signal is asserted.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: September 18, 2018
    Assignee: ROHM CO., LTD.
    Inventors: Hiroki Kikuchi, Ryo Shimizu
  • Publication number: 20180257491
    Abstract: Provided is a regenerative coordination brake control device that reduces the frequency of switching regenerative braking between a restricted state, in which regenerative braking is prohibited or suppressed, and a restriction removed state, in which the restriction on regenerative braking is removed. A regenerative coordination brake control device 91 includes a regeneration restriction condition determiner 92, which outputs a regeneration restriction signal S1 when determining that a restriction condition for prohibiting or suppressing regenerative braking is met, an acceleration operation detector 93, which outputs a regeneration restriction removal signal S2 when detecting an acceleration of the vehicle, and a regeneration restriction removal determiner 94, which determines whether a restriction on regenerative braking of the vehicle that is in the restricted state is to be continuously imposed or removed using the regeneration restriction removal signal S2 and the regeneration restriction signal S1.
    Type: Application
    Filed: September 13, 2016
    Publication date: September 13, 2018
    Applicant: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventors: Yoshinori TOMITA, Ryo SHIMIZU, Norihiko IKOMA
  • Patent number: 10075081
    Abstract: An external circuit element RSET is connected in use to an SET terminal. A synchronous rectification controller generates a pulse signal S1 based on a control time determined according to the state of the SET terminal. A driver switches on and off the synchronous rectification transistor according to the pulse signal S1. An abnormal state detection circuit is capable of detecting an open-circuit state and/or a short-circuit state that can occur in the SET terminal. When the abnormal state detection circuit detects such an open-circuit state and/or short-circuit state, the abnormal state detection circuit asserts a detection signal S11. When the detection signal S11 is asserted, a primary-side controller arranged on the primary side of the DC/DC converter is instructed to suspend the switching operation of a switching transistor.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: September 11, 2018
    Assignee: ROHM CO., LTD.
    Inventors: Hiroki Kikuchi, Ryo Shimizu
  • Patent number: 10059324
    Abstract: A hybrid vehicle including a front motor for driving front wheels, a rear motor for driving rear wheels, and a step-up converter for stepping-up the voltage from a battery and supplying power to the front motor, in which an engine is started to shift the vehicle from an EV mode into a series mode when the output power of the step-up converter is lower than the required power of the front motor, the hybrid vehicle includes a hybrid control unit which computes maximum output power of the step-up converter and, when the output power of the step-up converter is more than the maximum output power, increases the distribution ratio of the travel driving torque of the rear wheel, thereby increasing the output torque of the rear motor.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: August 28, 2018
    Assignee: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventors: Ryo Shimizu, Norihiko Ikoma, Makoto Kamachi, Hironori Abe, Naoki Miyamoto
  • Patent number: 10033289
    Abstract: A first capacitor and an auxiliary power supply are provided to a secondary side of an insulated synchronous rectification DC/DC converter, in addition to a synchronous rectification transistor and a secondary-side controller. One end of the first capacitor is connected to a first node that connects the synchronous rectification transistor and a secondary winding. The auxiliary power supply charges the first capacitor using the voltage VOUT supplied via the output line, so as to stabilize the voltage across the first capacitor. The ground voltage is supplied to the secondary-side controller via the first node. Furthermore, the power supply voltage is supplied to the secondary-side controller via the other end of the first capacitor.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: July 24, 2018
    Assignee: ROHM CO., LTD.
    Inventors: Hiroki Kikuchi, Ryo Shimizu