Patents by Inventor Yoshiyuki Sugai
Yoshiyuki Sugai 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).
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Patent number: 10461104Abstract: A subject for the invention is to provide a friction material which contains neither any copper component nor metallic fibers and which has stable frictional properties and excellent wear resistance and is less apt to attack mating materials. This invention relates to a friction 10-35% by volume potassium titanate having a plurality of protrudent shapes, 3-10% by volume abrasive material having a Moh's hardness of 7 or higher, and 10-30% by volume elastomer-modified phenolic resin.Type: GrantFiled: December 20, 2013Date of Patent: October 29, 2019Assignee: AKEBONO BRAKE INDUSTRY CO., LTD.Inventors: Yoshiyuki Sugai, Katsuji Seki
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Patent number: 10060492Abstract: 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: GrantFiled: December 20, 2013Date of Patent: August 28, 2018Assignee: AKEBONO BRAKE INDUSTRY CO., LTD.Inventors: Yoichi Onda, Hiroshi Yamamoto, Satoshi Kusaka, Yoshiyuki Sugai, Katsuji Seki
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Patent number: 9656921Abstract: A friction material composition including a fiber base material, a friction modifier and a binder. A content of copper in the friction material composition is 0.5% by mass or less. The friction material composition includes a partially graphitized coke and muscovite. A friction material is formed by molding the friction material composition.Type: GrantFiled: November 11, 2014Date of Patent: May 23, 2017Assignee: AKEBONO BRAKE INDUSTRY CO., LTD.Inventors: Takuya Kitami, Katsuji Seki, Yoshiyuki Sugai
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Patent number: 9541144Abstract: A vehicular disc brake rotor is provided with a cast-iron base, a nitrogen diffusion layer formed on the cast-iron base, a nitrogen compound layer formed on the nitrogen diffusion layer, and an iron oxide layer including Fe3O4 and formed on the nitrogen compound layer. In a burnish and a first re-burnish of a “Passenger car-Braking device-Dynamometer test procedures” (which is based on JASO C 406:2000), a change ratio of a frictional coefficient between the burnish and the first re-burnish is 10% or less.Type: GrantFiled: August 29, 2013Date of Patent: January 10, 2017Assignee: AKEBONO BRAKE INDUSTRY CO., LTD.Inventors: Yoshiyuki Sugai, Katsuji Seki, Takuya Takada
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Publication number: 20160289442Abstract: A friction material includes a binder, a friction adjusting material and a fiber base material. The friction material does not contain a copper component. The friction material includes: at least any one of aluminum and an Fe—Al intermetallic compound; alumina; chromite; and a steel fiber.Type: ApplicationFiled: March 28, 2014Publication date: October 6, 2016Inventors: Takuya TAKADA, Katsuji SEKI, Yoshiyuki SUGAI, Tomomi YASUNO
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Publication number: 20160289126Abstract: A friction material composition including a fiber base material, a friction modifier and a binder. A content of copper in the friction material composition is 0.5% by mass or less. The friction material composition includes a partially graphitized coke and muscovite. A friction material is formed by molding the friction material composition.Type: ApplicationFiled: November 11, 2014Publication date: October 6, 2016Applicant: AKEBONO BRAKE INDUSTRY CO., LTD.Inventors: Takuya KITAMI, Katsuji SEKI, Yoshiyuki SUGAI
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Publication number: 20160245353Abstract: A friction material composition including a fiber base material, a binder and a friction modifier. A content of copper in the friction material composition is 0.5% by mass or less and the friction material composition includes a fluorine-based polymer particle. A friction material is formed by molding the friction material composition.Type: ApplicationFiled: November 11, 2014Publication date: August 25, 2016Inventors: Yuji HANAIE, Katsuji SEKI, Yoshiyuki SUGAI, Motoyuki MIYAJI
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Patent number: 9422994Abstract: A cast-iron friction member is manufactured by: performing a nitrocarburizing treatment on a cast workpiece at a treatment temperature of 500° C. to 600° C. to thus form a nitrogen compound layer on a surface of the workpiece; and exposing the workpiece to an atmosphere when a temperature becomes 400° C. to 480° C. after the nitrocarburizing treatment so as to cool the workpiece to a room temperature while keeping a contact state with oxygen to thus form an iron oxide layer including Fe3O4 on a surface of the nitrogen compound layer.Type: GrantFiled: August 29, 2013Date of Patent: August 23, 2016Assignee: AKEBONO BRAKE INDUSTRY CO., LTD.Inventors: Yoshiyuki Sugai, Katsuji Seki, Takuya Takada
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Publication number: 20150369320Abstract: 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: ApplicationFiled: December 20, 2013Publication date: December 24, 2015Applicant: AKEBONO BRAKE INDUSTRY CO., LTD.Inventors: Yoichi ONDA, Hiroshi YAMAMOTO, Satoshi KUSAKA, Yoshiyuki SUGAI, Katsuji SEKI
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Publication number: 20150287753Abstract: The problem addressed by the present invention is to provide a friction material, which does not contain a copper component or a metal fiber, has stable friction characteristics, has superior wear resistance, and has a low aggressiveness with respect to a partner material. The friction material does not contain a metal fiber or a copper component, and contains 10-35 vol % of potassium titanate, which has a plurality of convex shapes; 3-10 vol of an abrasive material having a Mohs hardness of at least 7, and 10-30 vol % of an elastomer-modified phenyl resin.Type: ApplicationFiled: December 20, 2013Publication date: October 8, 2015Inventors: Yoshiyuki Sugai, Katsuji Seki
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Publication number: 20140060983Abstract: A vehicular disc brake rotor is provided with a cast-iron base, a nitrogen diffusion layer formed on the cast-iron base, a nitrogen compound layer formed on the nitrogen diffusion layer, and an iron oxide layer including Fe3O4 and formed on the nitrogen compound layer. In a burnish and a first re-burnish of a “Passenger car-Braking device-Dynamometer test procedures” (which is based on JASO C 406:2000), a change ratio of a frictional coefficient between the burnish and the first re-burnish is 10% or less.Type: ApplicationFiled: August 29, 2013Publication date: March 6, 2014Applicant: Akebono Brake Industry Co., LtdInventors: Yoshiyuki SUGAI, Katsuji SEKI, Takuya TAKADA
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Publication number: 20140060704Abstract: A cast-iron friction member is manufactured by: performing a nitrocarburizing treatment on a cast workpiece at a treatment temperature of 500° C. to 600° C. to thus form a nitrogen compound layer on a surface of the workpiece; and exposing the workpiece to an atmosphere when a temperature becomes 400° C. to 480° C. after the nitrocarburizing treatment so as to cool the workpiece to a room temperature while keeping a contact state with oxygen to thus form an iron oxide layer including Fe3O4 on a surface of the nitrogen compound layer.Type: ApplicationFiled: August 29, 2013Publication date: March 6, 2014Applicant: AKEBOND BRAKE INDUSTRY CO., LTD.Inventors: Yoshiyuki SUGAI, Katsuji SEKI, Takuya TAKADA
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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: 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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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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Publication number: 20080213610Abstract: 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: ApplicationFiled: February 29, 2008Publication date: September 4, 2008Inventors: Hiroshi Idei, Yoshiyuki Sugai, Hisao Kamii, Akinori Hashimoto, Masanori Kato
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Patent number: 7416061Abstract: In a brake member having a brake lining bonded to a brake shoe, the brake shoe has a chemical conversion coating provided on the surface thereof and a ceramics coating layer provided on the chemical conversion coating which has been formed by dipping in a ceramics precursor solution. The brake lining is bonded to the ceramics coating layer by heating under pressure. A method for bonding a brake lining and a brake shoe is provided with a step of degreasing, cleaning and acid-washing the surface of a brake shoe and then forming a chemical conversion coating thereon, a step of dipping the brake shoe having a chemical conversion coating formed thereon in a ceramics precursor solution to effect ceramics coating and a step of bonding a dried brake lining to the brake shoe under heating and pressure.Type: GrantFiled: March 30, 2007Date of Patent: August 26, 2008Assignee: Akebono Brake Industry Co., Ltd.Inventors: Hiroshi Idei, Sho Kurihara, Yoshiyuki Sugai, Katsuhiro Kikuchi, Yoshihiro Aoyagi
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Publication number: 20080184628Abstract: 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: ApplicationFiled: February 1, 2008Publication date: August 7, 2008Inventors: Yoshiyuki SUGAI, Hiroshi Idei
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Publication number: 20070227842Abstract: In a brake member having a brake lining bonded to a brake shoe, the brake shoe has a chemical conversion coating provided on the surface thereof and a ceramics coating layer provided on the chemical conversion coating which has been formed by dipping in a ceramics precursor solution. The brake lining is bonded to the ceramics coating layer by heating under pressure. A method for bonding a brake lining and a brake shoe is provided with a step of degreasing, cleaning and acid-washing the surface of a brake shoe and then forming a chemical conversion coating thereon, a step of dipping the brake shoe having a chemical conversion coating formed thereon in a ceramics precursor solution to effect ceramics coating and a step of bonding a dried brake lining to the brake shoe under heating and pressure.Type: ApplicationFiled: March 30, 2007Publication date: October 4, 2007Inventors: Hiroshi Idei, Sho Kurihara, Yoshiyuki Sugai, Katsuhiro Kikuchi, Yoshihiro Aoyagi
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Patent number: 6265356Abstract: Starting material containing raw material fiber, raw material powder and binder for manufacturing friction material is granulated, so that primary granules are made, and then the primary granules are crushed so as to obtain granules of raw material for manufacturing friction material.Type: GrantFiled: November 3, 1998Date of Patent: July 24, 2001Assignees: Akebono Brake Industry, Co., LTD, Akebono Research and Development Centre Ltd.Inventor: Yoshiyuki Sugai