Patents by Inventor Kosaku Sagayama

Kosaku Sagayama 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: 11878665
    Abstract: A hydraulic pressure control unit and a straddle-type vehicle brake system capable of simultaneously reducing size of a motor for the hydraulic pressure control unit in a rotation axis direction and improving workability of connecting fluid pipes to a master cylinder port and a wheel cylinder port are obtained. An inlet valve and an outlet valve are provided in valve holes provided on a first surface of a base body. A motor is provided in an upright manner in a motor hole provided on the first surface. One of the master cylinder port and the wheel cylinder port is provided on a second surface as a surface opposing the first surface. The other of the master cylinder port and the wheel cylinder port is provided on a third surface constituting one end of the base body in a direction that is parallel with a reference surface including a center axis of the motor hole and is orthogonal to the center axis.
    Type: Grant
    Filed: April 4, 2019
    Date of Patent: January 23, 2024
    Assignee: Robert Bosch GmbH
    Inventor: Kosaku Sagayama
  • Publication number: 20230092378
    Abstract: To achieve a brake hydraulic pressure control system for a straddle-type vehicle which makes it possible to reduce its size as compared to existing ones. A brake hydraulic pressure control system (70) according to the present invention including: a substrate (80); a motor (40) which is a brushless motor configured to drive a pump device (31); a housing (85) which is connected to the substrate (80); and a detection mechanism (60) which is configured to detect the rotation state of an output shaft (45) of the motor (40), in which the motor (40) is disposed in a space surrounded by the substrate (80) and the housing (85), and a bearing (46) of the motor (40) is inserted into a concave part (84) formed in the substrate (80).
    Type: Application
    Filed: February 15, 2021
    Publication date: March 23, 2023
    Inventors: Hiroaki Atsushi, Mikiya Kotaka, Kosaku Sagayama
  • Patent number: 11554764
    Abstract: To obtain a hydraulic pressure control unit and a straddle-type vehicle brake system, each of which can answer a request for downsizing. The straddle-type vehicle brake system has a hydraulic circuit that includes: a primary channel through which brake fluid in a master cylinder is delivered to a wheel cylinder; a secondary channel through which the brake fluid in the wheel cylinder is released to a primary channel intermediate portion; and a supply channel that supplies the brake fluid to a secondary channel intermediate portion.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: January 17, 2023
    Assignee: Robert Bosch GmbH
    Inventors: Hiroaki Atsushi, Kosaku Sagayama
  • Patent number: 11479228
    Abstract: The invention has a purpose of obtaining a brake hydraulic pressure controller capable of securing durability with a simple configuration and a motorcycle brake system. The brake hydraulic pressure controller is a hydraulic pressure controller for a vehicle brake system and includes: a base body that is formed with a channel filled with a brake fluid therein; a hydraulic pressure regulation valve that has a plunger and opens/closes the channel by translatory movement of said plunger; a drive coil that has a hollow section, is vertically provided in the base body in a state where one end of the plunger is inserted in said hollow section, and causes the translatory movement of the plunger to drive the hydraulic pressure regulation valve; and a coil casing that accommodates the drive coil. The coil casing includes a wall that covers at least a part of an apex of the vertically-provided drive coil, and the drive coil is pressed toward the base body by a projection formed in the wall.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: October 25, 2022
    Assignee: Robert Bosch GmbH
    Inventors: Kosaku Sagayama, Takashi Ogawa
  • Patent number: 11472386
    Abstract: To acquire a hydraulic pressure control unit and a straddle-type vehicle brake system capable of adding an auxiliary plunger pump while suppressing extreme enlargement of the hydraulic pressure control unit. In a base body, a combination of a first plunger pump and a first accumulator and a combination of a second plunger pump and a second accumulator for a different system of a hydraulic circuit therefrom are separately provided on both sides of a reference surface including a center axis of a motor hole. A first plunger pump hole and a second plunger pump hole are separately provided on a second surface and a third surface constituting both ends of the base body in a first direction. A first accumulator hole, a second accumulator hole, and an auxiliary plunger pump hole are provided on a fourth surface constituting an end of the base body in a second direction.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: October 18, 2022
    Assignee: Robert Bosch GmbH
    Inventor: Kosaku Sagayama
  • Patent number: 11339890
    Abstract: The invention has a purpose of obtaining a brake hydraulic pressure controller capable of attaching a coil casing to a base body with a simple configuration, a motorcycle brake system, and a manufacturing method of a brake hydraulic pressure controller. In the brake hydraulic pressure controller, at least one projected portion is provided in the coil casing, at least one hole portion is provided in a surface of the base body to which the coil casing is attached, the coil casing is attached to the base body in a state where the projected portion is inserted in the hole portion, the projected portion includes a hook portion that bulges in a direction to cross a projected direction of said projected portion, the coil casing is held by the base body when a part of the base body abuts a surface of a base-side region that is a region near a base of the projected portion with a top of a bulge of the hook portion being a reference.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: May 24, 2022
    Assignee: Robert Bosch GmbH
    Inventor: Kosaku Sagayama
  • Publication number: 20210237704
    Abstract: A hydraulic pressure control unit and a straddle-type vehicle brake system capable of simultaneously reducing size of a motor for the hydraulic pressure control unit in a rotation axis direction and improving workability of connecting fluid pipes to a master cylinder port and a wheel cylinder port are obtained. An inlet valve and an outlet valve are provided in valve holes provided on a first surface of a base body. A motor is provided in an upright manner in a motor hole provided on the first surface. One of the master cylinder port and the wheel cylinder port is provided on a second surface as a surface opposing the first surface. The other of the master cylinder port and the wheel cylinder port is provided on a third surface constituting one end of the base body in a direction that is parallel with a reference surface including a center axis of the motor hole and is orthogonal to the center axis.
    Type: Application
    Filed: April 4, 2019
    Publication date: August 5, 2021
    Inventor: Kosaku Sagayama
  • Publication number: 20210114573
    Abstract: The invention has a purpose of obtaining a brake hydraulic pressure controller capable of securing durability with a simple configuration and a motorcycle brake system. The brake hydraulic pressure controller is a hydraulic pressure controller for a vehicle brake system and includes: a base body that is formed with a channel filled with a brake fluid therein; a hydraulic pressure regulation valve that has a plunger and opens/closes the channel by translatory movement of said plunger; a drive coil that has a hollow section, is vertically provided in the base body in a state where one end of the plunger is inserted in said hollow section, and causes the translatory movement of the plunger to drive the hydraulic pressure regulation valve; and a coil casing that accommodates the drive coil. The coil casing includes a wall that covers at least a part of an apex of the vertically-provided drive coil, and the drive coil is pressed toward the base body by a projection formed in the wall.
    Type: Application
    Filed: October 25, 2017
    Publication date: April 22, 2021
    Inventors: Kosaku Sagayama, Takashi Ogawa
  • Publication number: 20210114571
    Abstract: To acquire a hydraulic pressure control unit and a straddle-type vehicle brake system capable of adding an auxiliary plunger pump while suppressing extreme enlargement of the hydraulic pressure control unit. In a base body, a combination of a first plunger pump and a first accumulator and a combination of a second plunger pump and a second accumulator for a different system of a hydraulic circuit therefrom are separately provided on both sides of a reference surface including a center axis of a motor hole. A first plunger pump hole and a second plunger pump hole are separately provided on a second surface and a third surface constituting both ends of the base body in a first direction. A first accumulator hole, a second accumulator hole, and an auxiliary plunger pump hole are provided on a fourth surface constituting an end of the base body in a second direction.
    Type: Application
    Filed: April 5, 2019
    Publication date: April 22, 2021
    Inventor: Kosaku Sagayama
  • Patent number: 10967842
    Abstract: The invention has a purpose of obtaining a brake hydraulic pressure controller having improved vibration resistance and a motorcycle brake system including such a brake hydraulic pressure controller.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: April 6, 2021
    Assignee: Robert Bosch GmbH
    Inventors: Takashi Ogawa, Kosaku Sagayama
  • Publication number: 20210053539
    Abstract: To obtain a hydraulic pressure control unit and a straddle-type vehicle brake system, each of which can answer a request for downsizing. The straddle-type vehicle brake system has a hydraulic circuit that includes: a primary channel through which brake fluid in a master cylinder is delivered to a wheel cylinder; a secondary channel through which the brake fluid in the wheel cylinder is released to a primary channel intermediate portion; and a supply channel that supplies the brake fluid to a secondary channel intermediate portion.
    Type: Application
    Filed: December 14, 2018
    Publication date: February 25, 2021
    Inventors: Hiroaki Atsushi, Kosaku Sagayama
  • Publication number: 20200070791
    Abstract: The invention has a purpose of obtaining a brake hydraulic pressure controller having improved vibration resistance and a motorcycle brake system including such a brake hydraulic pressure controller.
    Type: Application
    Filed: October 25, 2017
    Publication date: March 5, 2020
    Inventors: Takashi Ogawa, Kosaku Sagayama
  • Publication number: 20200063881
    Abstract: The invention has a purpose of obtaining a brake hydraulic pressure controller capable of attaching a coil casing to a base body with a simple configuration, a motorcycle brake system, and a manufacturing method of a brake hydraulic pressure controller. In the brake hydraulic pressure controller, at least one projected portion is provided in the coil casing, at least one hole portion is provided in a surface of the base body to which the coil casing is attached, the coil casing is attached to the base body in a state where the projected portion is inserted in the hole portion, the projected portion includes a hook portion that bulges in a direction to cross a projected direction of said projected portion, the coil casing is held by the base body when a part of the base body abuts a surface of a base-side region that is a region near a base of the projected portion with a top of a bulge of the hook portion being a reference.
    Type: Application
    Filed: October 25, 2017
    Publication date: February 27, 2020
    Inventor: Kosaku Sagayama
  • Patent number: 10246066
    Abstract: The invention aims to provide a motor module in which the number of components is reduced and the number of steps required for assembly is reduced, and an ABS hydraulic unit in which the motor module is embedded. Provided is a motor module including a motor and a planetary gear mechanism which is attached to an output shaft of the motor. The motor module includes a fixing portion that integrally fixes the motor and the planetary gear mechanism. The fixing portion fixes the motor by inwardly clamping the motor and fixes an internal gear of the planetary gear mechanism.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: April 2, 2019
    Assignee: Robert Bosch GmbH
    Inventor: Kosaku Sagayama
  • Publication number: 20180345927
    Abstract: A pumpless-type brake hydraulic pressure unit comprising a housing that includes a base body, an inlet valve hole accommodating an inlet valve, an outlet valve hole accommodating an outlet valve, a master cylinder port connected to a master cylinder, a reservoir port connected to a reservoir, a wheel cylinder port connected to a wheel cylinder, and a pipeline. The base body includes a first side face, a second side face, and a third side face. The inlet valve hole and the outlet valve hole are open on the first side face, the master cylinder port and the wheel cylinder port are provided on the second side face. The first side face and the second side face are perpendicular to one another, the first side face and the third side face are perpendicular to one another, and the second side face and the third side face are perpendicular to one another.
    Type: Application
    Filed: August 10, 2018
    Publication date: December 6, 2018
    Inventor: Kosaku Sagayama
  • Patent number: 10005439
    Abstract: Provided is an ABS hydraulic unit where it is unnecessary to change a size of a control circuit board corresponding to a size of a block. An ABS hydraulic unit for performing an antilock brake control of a hydraulic brake includes: a pump and a valve mounted in a hydraulic circuit for making the hydraulic brake perform braking; a motor for operating the pump; a block into which the pump, the valve and the motor are assembled; and a control circuit board for controlling the motor and the valve, wherein the block has a first surface into which. the motor and the valve are assembled, and a second surface which intersects with the first surface, and the control circuit board is arranged such that the control circuit board extends along the second surface and the valve is positioned between the control circuit board and the motor, the control circuit board being electrically connected with the motor and the valve through a wire extending along the first surface.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: June 26, 2018
    Assignee: Robert Bosch GmbH
    Inventors: Hiroaki Atsushi, Kosaku Sagayama
  • Publication number: 20180170333
    Abstract: A purpose is to obtain a brake hydraulic pressure controller and a method for manufacturing a brake hydraulic pressure controller that realize suppression of manufacturing cost and downsizing of the brake hydraulic pressure controller and simplification of a manufacturing process. The brake hydraulic pressure controller 1 has: a base body 10 formed with a channel of a hydraulic fluid; plural hydraulic pressure regulating valves 3 provided in the channel; and plural drive coils respectively provided in the plural hydraulic pressure regulating valves 3 and driving the hydraulic pressure regulating valves 3. One end section 15B that constitutes one end side of the drive coil 11 is adhered to an adhesive surface section that constitutes a contour of the base body 10 via a first adhesive member 17A.
    Type: Application
    Filed: June 2, 2016
    Publication date: June 21, 2018
    Inventors: Kosaku Sagayama, Takashi Ogawa
  • Publication number: 20180056966
    Abstract: A brake hydraulic pressure controller includes a base body that is formed with a channel for a hydraulic fluid therein. A first banjo with a first end, to which a brake pipe is connected, is fixed to a first port of the channel by a banjo bolt. A second end of the first banjo, to which the brake pipe is not connected, is inserted in a bottomed hole that is perforated in specified depth on an outer surface of the base body and into which the hydraulic fluid does not flow in an entire region of the specified depth, or extends to the outside of a side of the base body and is locked to an edge on the side of the base body.
    Type: Application
    Filed: August 16, 2017
    Publication date: March 1, 2018
    Inventors: Hiroaki Atsushi, Kosaku Sagayama, Makoto Sasaki
  • Patent number: 9827959
    Abstract: To improve the degree of freedom with which an ABS hydraulic unit is attached to a handlebar, an ABS hydraulic unit includes a main housing that has at least part of a hydraulic circuit formed inside and is equipped with a mounting portion for mounting a brake lever and an attachment portion having at least part of a side surface of a through hole formed along a first direction, the through hole being for attaching the ABS hydraulic unit to a handlebar. The ABS hydraulic unit also includes a master cylinder that has a piston portion that moves in conjunction with the brake lever, the master cylinder being for increasing, with the movement of the piston portion, the pressure of brake fluid inside the hydraulic circuit. A piston insertion hole that extends in the moving direction of the piston portion and is for inserting the master cylinder is formed in the main housing along a second direction that intersects, but is not orthogonal to, the first direction.
    Type: Grant
    Filed: February 20, 2013
    Date of Patent: November 28, 2017
    Assignee: Robert Bosch GmbH
    Inventors: Kosaku Sagayama, Hiroaki Atsushi
  • Patent number: 9815444
    Abstract: A miniaturized ABS hydraulic unit is provided. In an ABS hydraulic unit 100 where a pump 12 and valves 13, 14 are disposed in the inside of a hydraulic circuit 1 for making a hydraulic brake perform braking, and an antilock brake control of the hydraulic brake is performed by controlling the pump 12 and the valves 13, 14, a motor 11 for operating the pump 12 is configured to operate the pump 12 by way of a planetary gear mechanism 30.
    Type: Grant
    Filed: September 19, 2013
    Date of Patent: November 14, 2017
    Assignee: Robert Bosch GmbH
    Inventor: Kosaku Sagayama