Patents Assigned to Akebono Brake Industry Co., Ltd.
  • LAMINATED SHIM FOR DISC BRAKE
    Publication number: 20180283479
    Abstract: A laminated shim for a disc brake includes base and cover shim plates. The base shim plate includes a base side substrate portion, and a base side locking piece extending in a lamination direction of the base shim plate and the cover shim plate. The cover shim plate includes a cover side substrate portion which is laminated on the base side substrate portion, and a cover side locking piece which extends from the cover side substrate portion in an extension direction of the base side locking piece and is radially overlapped with the base side locking piece. A circumferential end portion of one of the base side locking piece and the cover side locking piece abuts against a movement restricting surface facing a circumferential direction and provided at one of the base side substrate portion and the cover side substrate portion.
    Type: Application
    Filed: March 27, 2018
    Publication date: October 4, 2018
    Applicant: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventors: Isao TAMAOKI, Yuta YAMAGUCHI
  • Method and apparatus for fabricating electrostatic capacitance-type acceleration sensor and electrostatic capacitance-type acceleration sensor
    Patent number: 10067155
    Abstract: In a method for fabricating an electrostatic capacitance-type acceleration sensor having a capacitor which electrostatic capacitance between a movable electrode and a fixed electrode changes according to the displacement of the movable electrode, the method includes: a step of forming a groove on at least one of the surface of an insulative substrate and the surface of a semiconductor substrate; a step of forming a hole in the semiconductor substrate so as to penetrate the semiconductor substrate at a position communicating with a passage formed by the groove; and a step of forming an electrode extraction hole in the insulative substrate so as to penetrate the insulative substrate, at a position communicating with the passage formed by the groove.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: September 4, 2018
    Assignees: AKEBONO BRAKE INDUSTRY CO., LTD., JAPAN OIL, GAS AND METALS NATIONAL CORPORATION
    Inventors: Takahiro Tsunoda, Takashi Kunimi, Toru Sekine
  • Friction material
    Patent number: 10060492
    Abstract: A friction material includes a fiber base material, a friction modifier and a binder. The friction modifier includes two or more kinds of non-whisker-like titanate compounds. The non-whisker-like titanate compound includes non-whisker-like lithium potassium titanate. The friction material includes no copper component. Alternatively, a friction material includes a fiber base material, a friction modifier and a binder. The friction material includes a non-whisker-like titanate compound and a low-melting-point metal fiber. The friction material includes no copper component.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: August 28, 2018
    Assignee: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventors: Yoichi Onda, Hiroshi Yamamoto, Satoshi Kusaka, Yoshiyuki Sugai, Katsuji Seki
  • THERMOSETTING RESIN COMPOSITION FOR FRICTION MATERIAL, FRICTION MATERIAL AND METHOD FOR PRODUCING THERMOSETTING RESIN COMPOSITION FOR FRICTION MATERIAL
    Publication number: 20180231086
    Abstract: A thermosetting resin composition for a friction material includes a thermosetting resin and a lignocellulose nanofiber dispersed in the thermosetting resin. A method for producing a thermosetting resin composition for a friction material includes a first step and a second step. In the first step, a plant-based biomass containing a lignocellulose is mixed with a dispersion medium to obtain a mixture thereof, and the mixture is subjected to a defibration treatment to obtain a slurry of a lignocellulose nanofiber. In the second step, phenol is reacted with an aldehyde in the presence of an acid catalyst to obtain a thermosetting resin, and the slurry is added to the thermosetting resin. The lignocellulose nanofiber is dispersed in the thermosetting resin while removing the dispersion medium and unreacted phenol.
    Type: Application
    Filed: February 5, 2018
    Publication date: August 16, 2018
    Applicant: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventors: Motoki KUROE, Kanami NAKAMURA
  • WEDGE CAM BRAKE
    Publication number: 20180223923
    Abstract: A wedge cam brake executes a braking operation by causing proximal end portions of brake arms to press a pair of pad assemblies against both sides of a brake rotor so as to hold it therebetween by means of a cam action of a wedge cam which is caused to move to a braking position along the direction of a rotational axis of a ball screw which is screwed into a ball nut which is provided integrally with the wedge cam as a result of the ball screw being driven to rotate. The wedge cam includes a compression coil spring for pushing to bias the ball nut towards the braking position where the proximal end portions of the brake arms are expanded and a spring holding mechanism for holding the compression coil spring in a biasing force accumulating state.
    Type: Application
    Filed: August 5, 2016
    Publication date: August 9, 2018
    Applicant: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventors: Toshifumi MAEHARA, Shogo MASHIMO, Kazuhiro YOSHIKAWA
  • Pad assembly for disc brake
    Patent number: 10041554
    Abstract: An engaging projection formed on a back surface of a pressure plate is inserted into an engaging hole formed in an outside shim plate. A flat surface parts of the engaging projection constituting a side surface thereof are opposed to a linear parts of the engaging hole constituting an inner peripheral edge thereof. When the outside shim plate exists at a neutral position with respect to the pressure plate, the flat surface parts and linear parts are slightly inclined with respect to each other. A rotation of the outside shim plate about an axis of a piston based on a rotation force applied from a leading end face of the piston to the outside shim plate is regulated by line contact between the flat surface parts and linear parts.
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: August 7, 2018
    Assignee: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventors: Hiroyasu Ishikawa, Akiyuki Tajima, Kohei Bando
  • Sequential parking brake assembly
    Patent number: 10030728
    Abstract: An assembly includes a brake system comprising, a parking brake assembly including a first drive shaft and a second drive shaft. The assembly also includes two or more opposing brake pads, and a rotor extending between the two or more opposing brake pads. During use, the first drive shaft is moved so that a first portion of the brake pad is moved relative to the rotor, The second drive shaft is moved so that a second portion of the brake pad is moved relative to the rotor. One of the first portion of the brake pad or the second portion of the brake pad is moved relative to the rotor before the other of the first portion of the brake pad or the second portion of the brake pad is moved relative to the rotor.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: July 24, 2018
    Assignee: AKEBONO BRAKE INDUSTRY CO., LTD
    Inventors: Galus Chelaidite, Waleed Mahmoud Al-Mahshi, Carla Thomas
  • DISC BRAKE DEVICE
    Publication number: 20180195564
    Abstract: A floating type disc brake device in which a body, a support and a cylinder unit are configured separately, and a first piston and a second piston are accommodated in the cylinder unit, wherein the cylinder unit is fixed to arm portions provided on both the rotation-in side and the rotation-out side of a rotor in the support via cylinder attachment portions disposed on the outer circumference side of the cylinder unit.
    Type: Application
    Filed: June 28, 2016
    Publication date: July 12, 2018
    Applicant: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventors: Kazuhiro YOSHIKAWA, Kohei NOMA
  • Friction material
    Patent number: 10012280
    Abstract: A friction material as a lining for a drum brake includes polytetrafluoroethylene and an acrylic rubber-modified phenol resin. In the friction material, the polytetrafluoroethylene is preferably included in an amount of 0.1% by mass to 5% by mass, and the acrylic rubber-modified phenol resin is preferably included in an amount of 1% by mass to 15% by mass.
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: July 3, 2018
    Assignee: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventors: Yuki Sato, Mikiya Haruta
  • Power transfer mechanism for a parking brake assembly
    Patent number: 9989114
    Abstract: A brake assembly including a first brake piston; a second brake piston; and a parking brake assembly. The parking brake assembly includes a power transfer mechanism and a motor providing power to the power transfer mechanism. During a parking brake apply, the power transfer mechanism provides the power to both the first brake piston and the second brake piston so that both the first brake piston and the second brake piston are moved until a resistance of the second brake piston becomes higher than a resistance of the first brake piston. The power transfer mechanism then transfers the power from the second brake piston to the first brake piston so that the second brake piston ceases to move and additional power is supplied to the first brake piston.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: June 5, 2018
    Assignee: AKEBONO BRAKE INDUSTRY CO., LTD
    Inventor: Galus Chelaidite
  • Caliper housing having a mass damper
    Patent number: 9989112
    Abstract: A caliper housing having a) an inboard side; b) an outboard side distanced from the inboard side so that a rotor gap is formed between the inboard side and the outboard side; c) a bridge structure which extends from both the inboard side and the outboard side over the rotor gap and connects the inboard side with the outboard side; d) a damper bore passing through the caliper housing from the inboard side into the bridge structure; and e) a mass damper residing within the damper bore; wherein the mass damper is adapted to dampen vibrations occurring during use of the caliper housing.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: June 5, 2018
    Assignee: AKEBONO BRAKE INDUSTRY CO., LTD
    Inventors: Brad Robert Lethorn, Scott Alan Dubay, Keqin Xu
  • Disc brake system
    Patent number: 9989115
    Abstract: A brake system including a piston brake system and an integral parking brake system. The brake system includes a brake piston having a piston bore, and a brake pad. The parking brake system includes a rotary to linear stage mechanism located at least partially within the piston bore. During a brake apply, the brake piston and the brake pad are moved against a brake rotor to create a clamp force. During a parking brake apply, the rotary to linear stage mechanism transfers torque into a linear force to move the same brake piston and the same brake pad against the brake rotor to create a clamp force.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: June 5, 2018
    Assignee: AKEBONO BRAKE INDUSTRY CO., LTD
    Inventors: Michio Suzuki, Aurelian Bahmata
  • Disc brake apparatus
    Patent number: 9982731
    Abstract: A disc brake apparatus that holds brake pads (46) and is capable of holding a caliper body (30) in a part of the support is provided with a support in which pairs of torque receiving parts (16, 18) provided in both sides in a braking force tangential direction and connecting parts (20) respectively connecting together the torque receiving parts (16, 18) are provided in both sides in an axial-direction of a rotor. In the support, at least one of the torque receiving parts (16, 18) is capable of being divided. The support (12) includes an open part capable of inserting and removing the brake pads (46) in the braking force tangential direction by dividing the torque receiving parts.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: May 29, 2018
    Assignee: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventors: Toshifumi Maehara, Kazuhiro Yoshikawa
  • Brake piston
    Patent number: 9964165
    Abstract: A brake piston includes a piston pocket. The piston pocket receives a nut that is axially movable along a center axis. The nut is restricted from rotating within the piston pocket when a torque due to a frictional engagement between a nut seal and an inner pocket wall, one or more projections, or both is greater than an input torque at the nut. The nut is rotatable within the piston pocket when a torque due to the frictional engagement between the nut seal and the inner pocket wall, the one or more projections or both is less than the input torque at the nut and is less than the torque due to the frictional engagement between the piston and the piston seal.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: May 8, 2018
    Assignee: AKEBONO BRAKE INDUSTRY CO., LTD
    Inventors: Galus Chelaidite, Michio Suzuki
  • FRICTION MATERIAL
    Publication number: 20180119764
    Abstract: A friction material includes a fiber base material, a friction modifier and a binder. The friction modifier includes two or more kinds of titanate compounds. The two or more kinds of titanate compounds have a median diameter (D50) of 20 ?m or more. At least one of the two or more kinds of titanate compounds is a porous titanate compounds. The friction material includes no copper component.
    Type: Application
    Filed: October 31, 2017
    Publication date: May 3, 2018
    Applicant: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventors: Yu IWAI, Saki MARUTA, Yoichi KAWASHIMA, Hiroshi ISOBE
  • PISTON FOR DISC BRAKE DEVICE
    Publication number: 20180106314
    Abstract: An interior reinforcement body (14) is provide inside a piston (16) so as to continue to an inner circumferential surface of a cylindrical wall portion (17) and an inner surface of a bottom wall portion (18). A plurality of reinforcement walls (26a, 26b) which make up a radially outward portion of the interior reinforcement body (14) are not arranged in a radial direction but are arranged so as to be inclined relative to the radial direction. In particular, a pair of circumferentially adjacent reinforcement walls (26a, 26b) are arranged so as to be inclined reversely relative to the radial direction, and radially inward end portions of the pair of reinforcement walls (26a, 26b) are connected together.
    Type: Application
    Filed: April 19, 2016
    Publication date: April 19, 2018
    Applicant: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventors: Tsuyoshi SUZUKI, Takefumi MORIO
  • Disk brake pad and disc brake assembly
    Patent number: 9945435
    Abstract: A disc brake pad includes a lining and a back plate supporting the lining and having a projecting lug portion and a torque transfer surface. The projecting lug portion projects towards a rotor exit side. The torque transfer surface is disposed at a side edge portion which is situated further radially inwards than the lug portion. The projecting lug portion includes a first projecting arc-shaped surface portion which is disposed at a radially innermost portion of a radially inner surface of the lug portion. A portion of the torque transfer surface which lies near to a radially outer end of the torque transfer surface and which is situated further radially inwards than both of the radially inner surface and an action line of a brake tangential force exerted on braking is most projected toward the rotor exit side on the torque transfer surface.
    Type: Grant
    Filed: October 14, 2014
    Date of Patent: April 17, 2018
    Assignee: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventors: Masayuki Ueda, Isao Ishiguro
  • Disk brake device and brake pad for disk brake device
    Patent number: 9920799
    Abstract: The disk brake device comprises a caliper body including a cylinder part and a pawl part having a notch section connected together by a center bridge and side bridges with notch sections each interposed between the center bridge and side bridges, a support including guide pin guiding parts each interposed between the cylinder part and pawl part, guide pins respectively slidable to the guide pin guiding parts, and an outer side brake pad threadedly engaged with such surface of the pawl part as is opposed to a rotor on the rotor turn-in and turn-out sides of the notch section.
    Type: Grant
    Filed: October 25, 2013
    Date of Patent: March 20, 2018
    Assignee: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventors: Toshifumi Maehara, Shintaro Izaki
  • Electric drum or drum-in-hat park brake
    Patent number: 9920804
    Abstract: A linear actuation assembly comprising: (a) a differential assembly and (b) a pair of linear actuators in communication with the differential assembly; wherein the pair of linear actuators are movable along an axis so that during movement of each of the pair of linear actuators a pair of brake shoes are moved to create a brake force or moved to release a brake force, and wherein the differential assembly distributes power equally to each of the pair of linear actuators until resistance of one of the brake shoes increases then the differential assembly ceases to provide power to the brake shoe with increased resistance and distributes the power from the brake shoe with increased resistance to a brake shoe of lower resistance until a brake force is created.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: March 20, 2018
    Assignee: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventor: Kenneth Eric Gutelius
  • Friction material
    Patent number: 9914667
    Abstract: A friction material including two or more kinds of titanates and a ceramic fiber. The friction material includes no copper component. The two or more kinds of titanates may optionally include two or more kinds of alkali metal titanates, or the two or more kinds of titanates may optionally include an alkaline earth metal-alkali metal titanate and an alkali metal titanate.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: March 13, 2018
    Assignee: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventors: Yuki Muroya, Satoshi Kusaka