Patents by Inventor Takayuki Yamamoto

Takayuki Yamamoto 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: 11364890
    Abstract: A braking device includes: a reservoir; a master cylinder in which when the amount of operation performed on a brake pedal reaches or exceeds a predetermined amount, a port communicating between a pressure chamber and the reservoir is cut off and hydraulic pressure corresponding to the brake pedal operation amount is generated; a hydraulic pressure unit for adjusting the wheel cylinder hydraulic pressure; and a control unit for controlling the hydraulic pressure unit. The control unit determines, based on a temperature-related value related to the temperature of a friction member pressed by the wheel cylinder hydraulic pressure against a rotating member fixed to a wheel, whether the friction member is in a fade state. When the friction member is in a fade state, the control unit controls the hydraulic pressure unit to suction brake fluid from the reservoir through the port, and is fed to the wheel cylinder.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: June 21, 2022
    Assignee: ADVICS CO., LTD.
    Inventors: Yasuhito Ishida, Tatsushi Kobayashi, Takayuki Yamamoto
  • Patent number: 11325576
    Abstract: A braking control device includes a first adjustment unit, a master unit, a regenerative coordination unit, a first opening/closing valve, a second opening/closing valve, a reaction force hydraulic pressure sensor, an input hydraulic pressure sensor, a controller. The master unit includes a master cylinder and a master piston, a master chamber, a servo chamber, and a reaction force chamber. The regenerative coordination unit includes an input piston. The first opening/closing valve provided in a first fluid passage. The second opening/closing valve provided in a second fluid passage. The reaction force hydraulic pressure sensor detects a pressure in the reaction force chamber. The input hydraulic pressure sensor detects a pressure in the input cylinder.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: May 10, 2022
    Assignee: ADVICS CO., LTD.
    Inventors: Takayuki Yamamoto, Hiroyuki Kodama
  • Patent number: 11299135
    Abstract: A brake control device including a pressure adjusting unit including an electric pump and an electromagnetic valve, and that adjusts, using the electromagnetic valve, a brake liquid discharged by the electric pump to an adjusted liquid pressure and introduces the adjusted liquid pressure to the wheel cylinders of the rear wheels; and a master unit that includes a master cylinder and a master piston, and that includes a master chamber connected to the wheel cylinders of the front wheels and a servo chamber to which the adjusted liquid pressure is introduced and which provides, to the master piston, an advancing force that opposes a retreating force applied to the master piston by the master chamber.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: April 12, 2022
    Assignee: ADVICS CO., LTD.
    Inventors: Takayuki Yamamoto, Hiroyuki Kodama, Hiroyuki Ando
  • Patent number: 11232336
    Abstract: A printer apparatus that operates with power supplied by a power supply device includes: a printing unit that performs printing; a communication unit that is connected by USB to an external apparatus and supplies the power to the external apparatus; and a print control unit that causes the printing unit to perform printing in accordance with a print command received by the communication unit. When the printing unit performs the printing, the print control unit causes the communication unit to transmit a power-saving-enabling instruction that instructs the external apparatus to enter a power saving state.
    Type: Grant
    Filed: January 28, 2020
    Date of Patent: January 25, 2022
    Inventor: Takayuki Yamamoto
  • Patent number: 11204724
    Abstract: A printing system includes a terminal device that generates print job data, and a child printer that is configured to communicate with a parent printer that receives the print job data from the terminal device, where the child printer is configured to perform printing based on the print job data. The terminal device stores the generated print job data and transmits, to the parent printer, print job related data including the stored print job data and a plurality of pieces of access information for accessing the terminal device. The child printer requests a transmission of the print job data from the terminal device based on the plurality of pieces of access information included in the print job related data received by the parent printer.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: December 21, 2021
    Assignee: Seiko Epson Corporation
    Inventors: Kazuki Ohashi, Shinsuke Kubota, Takayuki Yamamoto
  • Publication number: 20210362698
    Abstract: A braking control device includes an upstream mechanism control unit, a determination unit, and a control unit. The upstream mechanism control unit is configured to feedback control the upstream mechanism in such a manner that a detected hydraulic pressure detected by a hydraulic pressure sensor is brought to an upstream target hydraulic pressure. The hydraulic pressure sensor detects a hydraulic pressure of the hydraulic pressure circuit. The determination unit is configured to determine, based on the detected hydraulic pressure by the hydraulic pressure sensor, whether hydraulic pressure hunting is occurring. The control unit is configured to control the downstream mechanism based on the upstream target hydraulic pressure and the target wheel pressure in a case where the determination unit determines that the hydraulic pressure hunting is occurring.
    Type: Application
    Filed: September 5, 2018
    Publication date: November 25, 2021
    Applicant: ADVICS CO., LTD.
    Inventors: Yasuhito ISHIDA, Kunihiro NISHIWAKI, Tatsushi KOBAYASHI, Tomotaka ASANO, Ken KUZUYA, Takayuki YAMAMOTO
  • Patent number: 11180123
    Abstract: This vehicle control system is provided with an input monitoring unit and a determination time changing unit. When a state in which first target data is not input to a second control unit continues for a first determination time or longer, the input monitoring unit determines the first target data to be in a non-input state. When a state in which second target data is not input to the second control unit continues for a second determination time or longer, the input monitoring unit determines the second target data to be in a non-input state. When the first target data is determined to be in a non-input state, the determination time changing unit shortens the second determination time.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: November 23, 2021
    Assignee: ADVICS CO., LTD.
    Inventors: Yasuhito Ishida, Takayuki Yamamoto
  • Patent number: 11155254
    Abstract: A braking device includes a stroke simulator, a hydraulic pressure generation unit, a reaction hydraulic pressure detection unit, a master hydraulic pressure detection unit, and a bottoming determination unit. The stroke simulator includes a cylinder and a piston slidably movable inside the cylinder in conjunction with an operation of a brake operation member. The stroke simulator causes a reaction force chamber to generate a reaction hydraulic pressure and applies a reaction force. The hydraulic pressure generation unit generates a master hydraulic pressure by driving a master piston and supplies a hydraulic pressure to a wheel cylinder. The reaction hydraulic pressure detection unit detects the reaction hydraulic pressure. The master hydraulic pressure detection unit detects the master hydraulic pressure. The bottoming determination unit determines whether the master piston is in a bottoming state based on the reaction hydraulic pressure and the master hydraulic pressure.
    Type: Grant
    Filed: October 4, 2017
    Date of Patent: October 26, 2021
    Assignee: ADVICS CO., LTD.
    Inventors: Kunihiro Nishiwaki, Takayuki Yamamoto, Yasuhito Ishida, Tatsushi Kobayashi
  • Publication number: 20210323525
    Abstract: A vehicle braking device provided with a hydraulic circuit having a first system, a second system, and a connection flow channel connecting both systems. The vehicle braking device includes a fluid supply unit supplying fluid to the first system, a first braking unit, for applying a braking force to a first wheel by using the fluid flowing in the first system, a second braking unit, for applying a braking force to a second wheel by using the fluid flowing in the second system, a determination unit for determining whether the fluid is leaking from the second system, and a control unit for executing specific control for controlling the fluid supply unit so that an amount of fluid supplied to the first system is increased in response to determination by the determination unit that the fluid is leaking from the second system.
    Type: Application
    Filed: November 18, 2019
    Publication date: October 21, 2021
    Applicant: ADVICS CO., LTD.
    Inventor: Takayuki YAMAMOTO
  • Patent number: 11117558
    Abstract: This vehicle brake device comprises: a simultaneous driving determination section which determines whether it is necessary to simultaneously drive an upstream-side motor and a downstream-side motor; and a PWM control section which, when the determination result by the simultaneous driving determination section is in the affirmative, changes the duty ratio of the PWM signal to be output to the upstream-side motor so as to be smaller than when the determination result by the simultaneous driving determination section is in the negative, and uses PWM control to drive the upstream-side motor.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: September 14, 2021
    Assignee: ADVICS CO., LTD.
    Inventors: Ken Kuzuya, Tomotaka Asano, Yasuhito Ishida, Tatsushi Kobayashi, Takayuki Yamamoto
  • Patent number: 11117561
    Abstract: A sensor monitoring device that comprises: a first controller ECA into which a detected value Smn from a sensor SMN is inputted via a first signal line LMA; a second controller ECB into which the detected value Smn is inputted via a second signal line LMB; and a communication bus CMB that transmits signals between the first controller ECA and the second controller ECB. The second controller ECB reads in the detected value Smn as a second processing value Smb and transmits the second processing value Smb to the first controller ECA via the communication bus CMB. The first controller ECA reads in the detected value Smn as a first processing value Sma, receives the second processing value Smb, and, on the basis of the first processing value Sma and the second processing value Smb, determines the suitability of the first processing value Sma.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: September 14, 2021
    Assignee: ADVICS CO., LTD.
    Inventors: Yasuhito Ishida, Takayuki Yamamoto
  • Patent number: 11111668
    Abstract: This panel (1) has a panel body (10) and a leg (20) that supports the panel body (10). The leg (20) has a shaft (22) that is inserted into the panel body (10), and a leg body (21) to which the shaft (22) is fixed and that is disposed outside of the panel body (10). The leg body (21) is provided with a first rotation stopper (31) that is in direct contact with at least either one of the front face (10A) and the back face (10B) of a panel face of the panel body (10) and that stops rotation of the panel body (10) in one direction around the shaft (22), and a second rotation stopper (32) that is configured to stop the rotation of the panel body (10) in the direction opposite to the one direction.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: September 7, 2021
    Assignee: OKAMURA CORPORATION
    Inventors: Takayuki Yamamoto, Akiyoshi Shiodera
  • Patent number: 11104319
    Abstract: A braking control device for imparting brake fluid pressure on wheel cylinders in response to operation of a braking operation member to produce braking force includes: first and second fluid pressure units for imparting brake fluid pressure by first and second power sources respectively; and a determining device for determining whether or not operation of the first fluid pressure unit is appropriate. When the determining device determines that operation is appropriate, the first fluid pressure unit imparts brake fluid pressure based on a suitability characteristic, which is the relationship between the brake fluid pressure and the braking operation member operation amount, set in advance. The second fluid pressure unit has proximity characteristics, generally matching the suitability characteristic, and notification characteristics, different from the suitability characteristic.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: August 31, 2021
    Assignee: ADVICS CO., LTD.
    Inventors: Yasuhito Ishida, Takayuki Yamamoto
  • Publication number: 20210261106
    Abstract: A brake control device includes an electric pump, a pressure adjustment valve that adjusts a hydraulic pressure of a brake fluid discharged by the electric pump to an adjustment hydraulic pressure and supplies the brake fluid in a rear wheel cylinder, and a master unit provided with a servo chamber into which brake fluid at the adjustment hydraulic pressure is supplied and in which the adjustment hydraulic pressure is converted into a forward force of a master piston, and a master chamber fluidically separated from the servo chamber by the master piston and connected to the front wheel cylinder and in which a rearward force converted from the hydraulic pressure in the front wheel cylinder and is applied to the master piston. Also included is an input unit provided with an input chamber and a simulator, and a controller configured to control the electric pump and the pressure adjustment valve.
    Type: Application
    Filed: August 29, 2019
    Publication date: August 26, 2021
    Applicant: ADVICS CO., LTD.
    Inventor: Takayuki YAMAMOTO
  • Patent number: 11094120
    Abstract: An inspection processing system includes a control unit connected to a photographing unit and an output unit. The control unit includes circuitry. The inspection processing system identifies a current position, displays a virtual image of a three-dimensional model of a structure corresponding to the current position. The virtual image is superimposed on a structure image obtained from the photographing unit. The inspection processing system further obtains an evaluation result of an evaluation item of an inspection subject using the structure image on which the displayed virtual image is superimposed, and records the evaluation result in an inspection information memory in association with the position of the inspection subject in the three-dimensional model.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: August 17, 2021
    Assignee: OBAYASHI CORPORATION
    Inventors: Yuichi Ikeda, Tamaki Horii, Kazuyuki Goto, Hidefumi Takenaka, Takayuki Yamamoto
  • Publication number: 20210229648
    Abstract: A braking control device includes a master unit including a master chamber connected to a front wheel cylinder and a servo chamber that applies forward force opposing a reverse force applied to a master piston by the master chamber to the master piston, a pressure adjustment unit that adjusts brake fluid discharged by a pump to a first liquid pressure by a first solenoid valve and introduces the first liquid pressure to a rear wheel cylinder, and adjusts the first liquid pressure to decrease to a second liquid pressure by a second solenoid valve and introduces the second liquid pressure to the servo chamber; and a regenerative coordination unit having an input piston operable in conjunction with a braking operation member and an input cylinder fixed to the master cylinder, and in which a gap between the master piston and the input piston is controlled by the second liquid pressure.
    Type: Application
    Filed: February 5, 2019
    Publication date: July 29, 2021
    Applicant: ADVICS CO., LTD.
    Inventors: Takayuki YAMAMOTO, Hiroyuki KODAMA, Hiroyuki ANDO
  • Publication number: 20210213835
    Abstract: A vehicle includes a regenerative generator on a front wheel. A braking control device includes an actuator that applies a front wheel torque and a rear wheel torque, and a controller that individually adjusts the front wheel torque and the rear wheel torque. The controller is configured to determine the front wheel torque and the rear wheel torque to zero when a regenerative braking force Fg generated by the regenerative generator has not reached a maximum regenerative force Fx which is a generatable maximum value. On the other hand, the controller is configured to increase the rear wheel torque from zero before increasing the front wheel torque from zero when the regenerative braking force Fg reaches the maximum regenerative force Fx.
    Type: Application
    Filed: February 5, 2019
    Publication date: July 15, 2021
    Applicant: ADVICS CO., LTD.
    Inventors: Takayuki YAMAMOTO, Hiroyuki KODAMA, Hiroyuki ANDO
  • Patent number: 11014542
    Abstract: A braking control device comprises: an operational displacement sensor detecting operational displacement of a braking member; a first hydraulic pressure unit that reads operational displacement as a first displacement processing value via a first displacement signal line and adjusts braking hydraulic pressure based on the first displacement processing value; a second hydraulic pressure unit that reads operational displacement as a second displacement processing value via a second displacement signal line and adjusts braking hydraulic pressure based on the second displacement processing value; and a communication bus transmitting signals between the first and second hydraulic pressure units. The first hydraulic pressure unit acquires the second displacement processing value via the communication bus and determines suitability/unsuitability of the first displacement processing value.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: May 25, 2021
    Assignee: ADVICS CO., LTD.
    Inventors: Yasuhito Ishida, Takayuki Yamamoto
  • Publication number: 20210129815
    Abstract: A braking control device for a vehicle includes a malfunction detector configured to detect a malfunction of a first stroke sensor or a second stroke sensor, a memory configured to store a first stroke and a second stroke, a stroke calculator for first calculation configured to calculate, from the first stroke and the second stroke, an average value for calculating a target deceleration before a malfunction is detected by the malfunction detector, a stroke calculator for second calculation configured to calculate, from the average value and the second stroke (first stroke), an additional value for calculating the target deceleration after the malfunction is detected, and a target deceleration setting circuit configured to set the target deceleration from the average value or the additional value.
    Type: Application
    Filed: March 28, 2019
    Publication date: May 6, 2021
    Applicant: Advics Co., Ltd.
    Inventors: Tomotaka ASANO, Takayuki YAMAMOTO, Yasuhito ISHIDA
  • Patent number: D945798
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: March 15, 2022
    Assignee: Okamura Corporation
    Inventor: Takayuki Yamamoto