Patents Assigned to Akebono Brake Industry Co., Ltd.
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Publication number: 20120196129Abstract: The present invention provides bead-like hollow particles and an easy and convenient method for producing the same, and a friction material using the bead-like hollow particles. The particles are bead-like hollow particles comprising odd-shaped particles composed of a metal oxide as a main component and having at least one of a through hole and non-through hole in a surface; the method is a producing method for the bead-like hollow particles, which comprises spraying and drying a suspension of a particulate biological material and a particulate metal oxide by a two-fluid nozzle spray dryer to obtain a powder composed of the particulate biological material as a core and a layer of the particulate metal oxide as a shell, and heating the obtained powder; and the friction material is a friction material using the hollow particles.Type: ApplicationFiled: October 12, 2010Publication date: August 2, 2012Applicant: Akebono Brake Industry Co., Ltd.Inventors: Naeko Okumura, Koichi Hatori, Akinori Hashimoto, Yoshiyuki Sugai, Hiroshi Idei
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Patent number: 8227390Abstract: The present invention provides a binder resin for a friction material, which enables high-temperature short-time thermoforming and can omit a post-curing step and suppress the generation of a pyrolysis component at molding; a friction material using the binder resin; and a binder resin composition for a friction material, which is enhanced in the heat resistance and can suppress a rapid increase of the wear amount, and in addition to these properties, which has good dynamic property and enables high-temperature short-time thermoforming.Type: GrantFiled: November 26, 2008Date of Patent: July 24, 2012Assignee: Akebono Brake Industry Co., Ltd.Inventors: Shou Kurihara, Hiroshi Idei, Yoshihiro Aoyagi, Motoki Kuroe
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Patent number: 8197731Abstract: Granules for a friction material is produced by: granulating a mixture including a friction modifying granular material and a resin binder in a fluidized bed under a presence of a liquid including a water-soluble or water-dispersible binder. The granules have a particle size of from 100 to 2000 ?m, an angle of repose of 40° or less, and a compression breakage strength of 10 MPa or less. The friction material is obtained by using the granules.Type: GrantFiled: February 1, 2008Date of Patent: June 12, 2012Assignee: Akebono Brake Industry Co., Ltd.Inventors: Yoshiyuki Sugai, Hiroshi Idei
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Publication number: 20120118500Abstract: An object of the present invention is to improve the fluidity of a thermosetting powder adhesive and clear the blocking with a powder adhesive in a constant amount supplying apparatus or a delivery pathway. The present invention has attained the object by a powder adhesive containing a thermosetting adhesive particle and an inorganic filler present on the surface of the thermosetting adhesive particle.Type: ApplicationFiled: September 29, 2010Publication date: May 17, 2012Applicant: AKEBONO BRAKE INDUSTRY CO., LTD.Inventors: Akinori Hashimoto, Hiroshi Idei, Hidetoshi Hishinuma
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Patent number: 8163387Abstract: An organic friction modifier is provided with a composite material particle in which laminar graphite particles are dispersed in an aramid resin. In addition, a friction material is provided with an organic friction modifier including a composite material particle in which laminar graphite particles are dispersed in an aramid resin.Type: GrantFiled: April 25, 2008Date of Patent: April 24, 2012Assignee: Akebono Brake Industry Co., Ltd.Inventors: Shou Kurihara, Hiroshi Idei, Yoshihiro Aoyagi
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Patent number: 8151949Abstract: A drum brake apparatus is provided with a backing plate, a brake shoe, a shoe guide portion formed integrally with a backing plate by cutting and press molding, a guide surface on a rear surface of the shoe guide portion, an engagement projection that is formed on the brake shoe and slidably engages with the guide surface, and end portions that is formed on the shoe guide portion at both ends of the shoe guide portion in a circumferential direction of the drum brake apparatus and is continuous to the backing plate. Uplift of the brake shoe from the backing plate is prevented by engagement between the guide surface and the engagement projection.Type: GrantFiled: May 12, 2009Date of Patent: April 10, 2012Assignee: Akebono Brake Industry Co., Ltd.Inventors: Hironori Akada, Masaki Uchida
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Patent number: 8033364Abstract: By rotating a regulating bolt about an axis thereof to move forward/backward with respect to a protrusion portion, a lever is rotated about a shaft portion of an adjusting member. Therefore, the shaft portion of an adjusting member is rotated together with the lever to adjust a gap formed between a disk and a piston. After the gap is adjusted, the regulating bolt is fastened owing to a lock nut and a screw hole of the protrusion portion to thereby fix an forward/backward position of the regulating bolt with respect to the protrusion portion. In addition, a fixing bolt is screwed into a screw hole of a second housing portion to thereby fix a rotational position of the lever. Accordingly, the rotational position of the lever is double-locked.Type: GrantFiled: November 7, 2007Date of Patent: October 11, 2011Assignees: Kabushiki Kaisha Toyota Jidoshokki, Akebono Brake Industry Co., Ltd.Inventors: Takashi Nishihara, Teruo Sanada
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Publication number: 20110174154Abstract: In a method for molding a resin piston by charging a preheated resin tablet into a cavity of a molding die, and by carrying out compression molding while heating, at a time point when an internal pressure of the cavity arrives at a determined pressure, by pressurizing a pressurizing margin in the molding die, resin which overflows from the molding die is discharged from a passage which is defined in an area except an outer circumferential surface of the piston, while the internal pressure of the cavity is maintained. After a thermosetting cycle has finished, the molding die 21 is opened.Type: ApplicationFiled: January 20, 2011Publication date: July 21, 2011Applicant: AKEBONO BRAKE INDUSTRY CO., LTD.Inventors: Isao SUNAGA, Daigo Kawabata
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Publication number: 20110139555Abstract: An electric brake device includes a brake pad, an axial force sensor and a controller. The brake pad is pressed against a rotation face of a brake rotor in a direction perpendicular to the rotation face. The axial force sensor detects a pressure of the brake pad. The controller performs a speed reduction control which is an operation target, based on at least one of the pressure of the brake pad and a reduced speed obtained from a wheel speed sensor.Type: ApplicationFiled: December 9, 2010Publication date: June 16, 2011Applicant: AKEBONO BRAKE INDUSTRY CO., LTD.Inventor: Hidekazu HORI
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Patent number: 7958976Abstract: The pad clip 14d is arranged between pins 12, 12 made to bridge an outer body portion and an inner body portion constituting a caliper and the two pads 10b, 11b. An engaging plate portion 27 is engaged with the respective pins 12, 12 without play. Press pieces 28, 28 formed by folding to bend both end portions in a rotational direction of the engaging plate portion in directions in which the more proximate to the two pads 10b, 11b, the more directed to an outer side in a radial direction are brought into elastic contact with outer peripheral edges of both end portions in a rotational direction of pressure plates 13b, 13b of the two pads 10b, 11b. Thereby, amounts of projecting portions in correspondence with the respective press pieces 28, 28 in a state of a material plate before being folded to bend from the engaging plate portion 27 can be restrained.Type: GrantFiled: June 25, 2007Date of Patent: June 14, 2011Assignee: Akebono Brake Industry Co., Ltd.Inventors: Takefumi Morio, Takaaki Sasaki
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Publication number: 20110092400Abstract: A method for producing a solid lubricant includes steps of preparing and coating. A phosphate aqueous solution prepared by the step of preparing is an aqueous solution containing at least one of aluminum dihydrogen phosphate and magnesium dihydrogen phosphate in an amount of 0.5 to 10% by mass. A graphite material is coated with a phosphate using the phosphate aqueous solution. The graphite material is used at a ratio of 40 to 50 parts by mass based on 100 parts by mass of the aqueous solution.Type: ApplicationFiled: October 15, 2010Publication date: April 21, 2011Applicant: AKEBONO BRAKE INDUSTRY CO., LTD.Inventors: Masanori KATO, Hiroshi Idei, Akinori Hashimoto
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Publication number: 20110017553Abstract: A cam housing assembly oscillates in association with rotation of an eccentric cam which is attached to a camshaft and is allowed to press a clutch by cam pins of the cam housing assembly. A pair of piston assemblies are provided of which each includes a piston which can slide within a sleeve, a spindle and a nut which screws on to the spindle and are supported in hole portions in a caliper body so as to oscillate therein, whereby a brake pad is pressed against by a plug after the spindle, the nut and the piston are sequentially pressed by pressing a clutch by the cam pins. Since the spindle and the nut are screwed on to each other through a reversible screw, a gap is adjusted automatically as the pad wears.Type: ApplicationFiled: July 21, 2010Publication date: January 27, 2011Applicant: AKEBONO BRAKE INDUSTRY CO., LTD.Inventor: Toshifumi MAEHARA
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Patent number: 7859393Abstract: Electromagnetic field transmissions between a sensor unit mounted on the inside surface of a tire and a sensor control unit mounted on the vehicle body are attenuated by the wall surface of a tire disposed between the units, and sensitivity is reduced. A booster antenna (18) is embedded in the tire wall surface between the sensor unit (6) and the sensor control unit (10). The booster antenna (18) is a coil antenna, and is configured so that the resonance frequency, which corresponds to the impedance and capacitance component of the booster antenna coil, corresponds to the frequency f0 of the transmission electromagnetic field of the sensor control unit (10). The booster antenna (18) is disposed in a position in which a magnetic coupling is formed with the coil antenna of the sensor unit (6), and transmissions via the electromagnetic field between the sensor unit (6) and the sensor control unit (10) are carried out through the booster antenna (18).Type: GrantFiled: April 17, 2006Date of Patent: December 28, 2010Assignees: Sanyo Electric Co., Ltd., Akebono Brake Industry Co., Ltd.Inventors: Hirohisa Suzuki, Hiroshi Saito, Eiichiro Kuwako, Takashi Kunimi
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Patent number: 7832264Abstract: The position of the rotation of a tire complicates the establishing of a wireless connection between a sensor unit attached to the tire and a sensor control unit attached to a vehicle body. A reflection plate is attached to an inner surface of a wheel housing at a position different from that of a sensor control unit. A transmission electromagnetic field from the sensor control unit is reflected by the metal reflection plate and transmitted to a sensor unit rotated to a position to which the field does not readily reach directly from the sensor control unit. The sensor unit varies an impedance of a coil antenna in accordance with transmission data, and generates a variation in the transmission electromagnetic field. The variation is detected via the reflection plate as a variation in a transmission load of the sensor control unit, and the transmission data from the sensor unit is detected in the sensor control unit.Type: GrantFiled: April 17, 2006Date of Patent: November 16, 2010Assignees: Sanyo Electric Co., Ltd., Akebono Brake Industry Co., Ltd.Inventors: Hirohisa Suzuki, Eiichiro Kuwako, Takashi Kunimi
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Publication number: 20100276237Abstract: A manufacturing apparatus 10 for manufacturing a brake lining 41 is provided with a support portion 33 for supporting a brake shoe 43, a compressing portion 20 for compressively bonding a strip-shaped brake lining 41 to a rim 43b by compressing a material and a mold portion 31, 32 including a mold frame 32 for shaping lateral surfaces of the brake lining 41 and a pressing member 31 for forming a frictional surface 41a of the brake lining 41 by pressing the material, so as to shape the brake lining 41. The mold frame 32 has a first molding surface 32a for shaping a first side plane 41b, a second molding surface 32b for shaping a second side plane 41c and a third molding surface 32c disposed at a boundary portion between the first molding surface 32a and the second molding surface 32b for continuously connecting the first molding surface 32a with the second molding surface 32b by a curved surface.Type: ApplicationFiled: January 7, 2009Publication date: November 4, 2010Applicant: AKEBONO BRAKE INDUSTRY CO., LTDInventors: Hidetoshi Hishinuma, Takanori Omiya
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Patent number: 7820239Abstract: An iron member having a coating film on at least part of its surface is manufactured by a step of projecting zinc particles to the surface of a base material made of an iron material to form a base film, and a step of forming a coating film of resin coating material on at least a part of the base film.Type: GrantFiled: February 29, 2008Date of Patent: October 26, 2010Assignee: Akebono Brake Industry Co., LtdInventors: Hiroshi Idei, Yoshiyuki Sugai, Hisao Kamii, Akinori Hashimoto, Masanori Kato
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Patent number: 7806241Abstract: Pistons 3 and 7 are pressed to a friction member 11 at two points that are positioned at a rotating-in side and a rotating-out side in a rotating direction of a brake rotor 10. An axial force control is performed for the piston 3 on the rotating-out side, and a position control based on the position of the piston 3 on the rotating-out side is performed for the piston 7 on the rotating-in side.Type: GrantFiled: September 20, 2006Date of Patent: October 5, 2010Assignee: Akebono Brake Industry Co., Ltd.Inventors: Hideaki Takahashi, Kimio Takahashi
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Publication number: 20100236878Abstract: Among abutment parts (Af, Bf, Cf, Ar) of pad-side engagement parts (11a, 11b) and support-member-side engagement parts (10a, 10a), a portion (Af) which bears a tangential force (Ff) applied to the pad (5a, 6a) during a forward rotation of the rotor on a forward side of the forward rotation of the rotor is positioned inwardly in a radial direction of a rotor with respect to a virtual tangent (k) at a centroid (O) of the pad (5a, 6a) of a virtual circle having a center identical with a center of the rotor and passing through said centroid (O). Among the abutment parts (Af, Bf, Cf, Ar), portions (Bf, Cf) which bear a rotational moment (Mf) applied to the pad (5a, 6a) during the forward rotation of the rotor are positioned at the circumferential both end parts of a support member (2a) and outwardly in the radial direction of the rotor with respect to the virtual tangent (k).Type: ApplicationFiled: March 10, 2010Publication date: September 23, 2010Applicant: AKEBONO BRAKE INDUSTRY CO., LTD.Inventor: Toshifumi MAEHARA
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Patent number: 7766110Abstract: A vehicle having in-wheel motors, wherein when the in-wheel motors are mounted on the vehicle driven by the torque of an internal combustion engine, the in-wheel motors are mounted on wheels on one side of the vehicle opposite to the other side on which the internal combustion engine is mounted. The non-rotating side of the motor and the knuckle are supported by a buffer mechanism having plates connected to each other by a direct-acting guide with springs composed of a direct-acting guide having a linear bearing and a rod and spring members moving in the vertical direction of the vehicle and mated with the direct-acting guide and a damper for interconnecting the plates, moving in the vertical direction of the vehicle to support the motor to either one or both of the unsprung mass of the vehicle and the car body by the buffer mechanism. Thus, the running ability and riding comfort of the vehicle having in-wheel motors can be improved.Type: GrantFiled: April 4, 2005Date of Patent: August 3, 2010Assignees: Kabushiki Kaisha Bridgestone, Kayaba Industry Co., Ltd., Akebono Brake Industry Co., Ltd.Inventors: Yasuhiro Suzuki, Katsumi Tashiro, Hisashi Kurokawa, Yoshinari Nakamura, Kimio Takahashi
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Patent number: 7740698Abstract: A non-asbestos friction material not containing a heavy metal and a heavy metallic compound as the blending ingredients of the friction material is provided with graphite and coke in total from 5 to 25 vol % in volume of friction material. A volume ratio of the graphite/coke is preferably from 2/1 to 7/1. An average particle size of the coke is preferably from 150 to 400 ?m.Type: GrantFiled: December 21, 2007Date of Patent: June 22, 2010Assignee: Akebono Brake Industry Co., Ltd.Inventors: Takuya Kitami, Hiroshi Isobe