Patents by Inventor Etsugou Yanagida

Etsugou Yanagida 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: 11919501
    Abstract: A brake device for a vehicle includes: a brake pedal having a pedal part and a lever part that rotates about a rotation shaft when the pedal part is operated; a housing that rotatably supports the lever part; a reaction force generator connected to the housing and the lever part to generate a reaction force against the lever part according to a stroke amount of the brake pedal; and a stopper configured to stop the lever part by being in contact with the lever part such that the lever part is restricted from rotating in a direction opposite to a rotation direction when the pedal part is operated.
    Type: Grant
    Filed: June 9, 2022
    Date of Patent: March 5, 2024
    Assignee: DENSO CORPORATION
    Inventors: Daisuke Hokuto, Etsugou Yanagida, Kunio Nanba
  • Publication number: 20220348171
    Abstract: A brake device for a vehicle includes: a brake pedal having a pedal portion and a lever portion that rotates about a rotation axis when the pedal portion is operated; a housing that rotatably supports the lever portion; and a plate member configured to generate a reaction force with respect to the lever portion in response to a stroke amount of the brake pedal. The plate member has a longitudinal surface defined by a side extending in a longitudinal direction of the plate member and a side extending in a width direction of the plate member. The longitudinal surface is arranged so as to face the lever portion. When the pedal portion is operated, the plate member is bent to generate the reaction force.
    Type: Application
    Filed: July 11, 2022
    Publication date: November 3, 2022
    Inventors: Etsugou YANAGIDA, Kunio NANBA, Daisuke HOKUTO
  • Publication number: 20220348172
    Abstract: A brake device includes: a brake pedal including a pedal and a lever that rotates about a rotation axis when the pedal is operated; a housing that rotatably supports the lever; a reaction force generator that generates a reaction force to the lever in accordance with a stroke amount of the brake pedal by receiving a force from the lever when the brake pedal is operated; a deformation member including a deformation portion that is deformed by a force received from the lever when the brake pedal is operated in a state where the reaction force generated by the reaction force generator is generated; and a stroke sensor that outputs a signal corresponding to the stroke amount and outputs a value indicating that operation of the brake pedal is abnormal and instructing execution of control for stopping a vehicle when the deformation portion is deformed.
    Type: Application
    Filed: July 19, 2022
    Publication date: November 3, 2022
    Inventors: Etsugou YANAGIDA, Kunio NANBA, Daisuke HOKUTO
  • Publication number: 20220297649
    Abstract: A vehicle brake system includes a vehicle brake device and a hydraulic pressure generation unit. The vehicle brake device includes: a brake pedal that has a pedal portion, and a lever portion rotating about a rotation axis in response to the pedal portion being operated; a stroke sensor that outputs a signal based on a stroke amount of the brake pedal; a housing that rotatably supports the lever portion; and a reaction force generation portion that generates a reaction force applied on the lever portion based on the stroke amount. The hydraulic pressure generation unit generates a hydraulic pressure for braking a vehicle.
    Type: Application
    Filed: June 8, 2022
    Publication date: September 22, 2022
    Inventors: Etsugou YANAGIDA, Daisuke HOKUTO, Kunio NANBA
  • Publication number: 20220297645
    Abstract: A vehicle brake device includes a brake pedal having a pedal part and a lever part rotatable about a rotational shaft according to an operation of the pedal part, a housing rotatably supporting the lever part and being located in a vehicle compartment of a vehicle and on a partition wall that separates an outside of the vehicle compartment and an inside of the vehicle compartment, and a reaction force generator connected to the housing and the lever part and configured to generate a reaction force on the lever part in accordance with a stroke amount of the brake pedal.
    Type: Application
    Filed: June 10, 2022
    Publication date: September 22, 2022
    Inventors: Etsugou YANAGIDA, Daisuke HOKUTO, Kunio NANBA
  • Publication number: 20220297650
    Abstract: A brake device for a vehicle includes: a brake pedal having a pedal part and a lever part that rotates about a rotation shaft when the pedal part is operated; a housing that rotatably supports the lever part; a reaction force generator connected to the housing and the lever part to generate a reaction force against the lever part according to a stroke amount of the brake pedal; and a stopper configured to stop the lever part by being in contact with the lever part such that the lever part is restricted from rotating in a direction opposite to a rotation direction when the pedal part is operated.
    Type: Application
    Filed: June 9, 2022
    Publication date: September 22, 2022
    Inventors: Daisuke HOKUTO, Etsugou YANAGIDA, Kunio NANBA
  • Patent number: 8959896
    Abstract: A reed valve is adapted to be fixed to a fixing member. The reed valve includes a valve plate and a resiliently deformable reed. The valve plate is fixed to the fixing member and includes a frame part and a supporting column. The frame part has an opening inward of the frame part. The opening passes through the frame part in a thickness direction of the valve plate. The supporting column is disposed across an inside of the opening. The reed is configured to open or close the opening. The frame part includes a frame seating surface with which the reed is engaged. The supporting column includes a column seating surface with which the reed is engaged. The column seating surface is recessed relative to the frame seating surface in the thickness direction.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: February 24, 2015
    Assignee: Denso Corporation
    Inventor: Etsugou Yanagida
  • Patent number: 8695338
    Abstract: A flow rate control valve and a waste-gate valve are operatively linked to a common cam plate, which is driven by an actuator. The cam plate has a first driving portion for rotating the flow rate control valve in a synchronized manner with rotation of the cam plate. The cam plate has a second driving portion for rotating the waste-gate valve in accordance with the rotation of the cam plate, wherein an operational pattern for the waste-gate valve is different from that for the flow rate control valve. As above, two valves are operated by one actuator so as to move independently from each other.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: April 15, 2014
    Assignee: Denso Corporation
    Inventors: Osamu Sato, Etsugou Yanagida
  • Publication number: 20120060494
    Abstract: A flow rate control valve and a waste-gate valve are operatively linked to a common cam plate, which is driven by an actuator. The cam plate has a first driving portion for rotating the flow rate control valve in a synchronized manner with rotation of the cam plate. The cam plate has a second driving portion for rotating the waste-gate valve in accordance with the rotation of the cam plate, wherein an operational pattern for the waste-gate valve is different from that for the flow rate control valve. As above, two valves are operated by one actuator so as to move independently from each other.
    Type: Application
    Filed: September 8, 2011
    Publication date: March 15, 2012
    Applicant: DENSO CORPORATION
    Inventors: Osamu SATO, Etsugou Yanagida
  • Publication number: 20120012774
    Abstract: A reed valve is adapted to be fixed to a fixing member. The reed valve includes a valve plate and a resiliently deformable reed. The valve plate is fixed to the fixing member and includes a frame part and a supporting column. The frame part has an opening inward of the frame part. The opening passes through the frame part in a thickness direction of the valve plate. The supporting column is disposed across an inside of the opening. The reed is configured to open or close the opening. The frame part includes a frame seating surface with which the reed is engaged. The supporting column includes a column seating surface with which the reed is engaged. The column seating surface is recessed relative to the frame seating surface in the thickness direction.
    Type: Application
    Filed: July 14, 2011
    Publication date: January 19, 2012
    Applicant: DENSO CORPORATION
    Inventor: Etsugou YANAGIDA
  • Publication number: 20110030372
    Abstract: A mixing device of an EGR apparatus has a double pipe structure being composed of a first cylindrical member and a second cylindrical member, wherein the first and second cylindrical members are coaxially arranged with each other. Cyclone blades are provided between the first and second cylindrical members, so that EGR gas introduced from an inlet portion into an inside of the first cylindrical member flows along an cylindrical inner wall of the first cylindrical member. A swirl flow is generated in the EGR gas passing through the cyclone blades, so that the EGR gas spirally flows in a downstream side to remove foreign material, such as flocculated water from the EGR gas.
    Type: Application
    Filed: August 9, 2010
    Publication date: February 10, 2011
    Applicant: DENSO CORPORATION
    Inventors: Kiyoshi Ooshima, Etsugou Yanagida, Yoshitaka Nishio
  • Publication number: 20110011084
    Abstract: An EGR system includes an exhaust gas recirculation pipe recirculating exhaust gas flowing through an exhaust pipe into an intake pipe upstream of a compressor of a supercharger. A swirling flow generator generates a swirling flow of intake air and exhaust gas along an inner surface of the intake pipe in order to centrifugally separate foreign matters from the intake air and the exhaust gas. A foreign-matters-collecting chamber collects the centrifugally separated solid foreign matters therein. The separated solid foreign matters are discharged through a discharge opening and a discharge pipe.
    Type: Application
    Filed: July 14, 2010
    Publication date: January 20, 2011
    Applicant: DENSO CORPORATION
    Inventors: Etsugou Yanagida, Yoshitaka Nishio, Yoshiaki Yamamoto, Kiyoshi Ooshima