Patents by Inventor Shinya Kaji
Shinya Kaji 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: 10961185Abstract: The invention relates to a stabilizer for L-012 or a salt thereof, a stabilization method for L-012 or a salt thereof, coexisting with the stabilizer and L-012 or a salt thereof, and the like. The stabilizer is represented by Formula [1]: wherein p pieces of M1 each independently represent a hydrogen atom or an alkali metal atom, q pieces of R1 each independently represent a hydroxy group or a sulfonic acid group, m represents 0 or 1, p represents an integer of 1 to 3, q represents an integer of 0 to 4, Y represents a nitrogen atom or a CH group (a methine group), and Z represents an aryl group having a specific structure or a pyrazolyl group having a specific structure.Type: GrantFiled: October 20, 2016Date of Patent: March 30, 2021Assignee: FUJIFILM WAKO PURE CHEMICAL CHEMICAL CORPORATIONInventors: Shinya Kaji, Toshinari Ohashi, Naoyuki Yamamoto
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Patent number: 10801571Abstract: The present invention provides a friction material used for a disc brake pad, which is able to secure the braking effectiveness and the wear resistance under the high speed and high load braking conditions while satisfying laws and regulations relating to the required amount of the content of the copper component. A friction material used for a disc brake pad, which is manufactured by forming a non-asbestos organic friction material composition, in which the friction material composition contains 1-15 weight % of ferrous sulfide (FeS) particles relative to the total amount of the friction material composition as a lubricant, and the total amount of the copper component involved in the friction material composition is less than 5 weight % relative to the total amount of the friction material composition. Furthermore, it is preferable to contain 0.Type: GrantFiled: July 24, 2014Date of Patent: October 13, 2020Inventors: Shinya Kaji, Makoto Tamura, Mitsuaki Yaguchi
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Patent number: 10670099Abstract: [Object] The present invention provides a friction material used for a disc brake pad, which is manufactured by forming a non-asbestos-organic (NAO) friction material composition that does not contain a copper component, which provides an excellent wear resistance and a highly stable braking effectiveness even after being subjected to a history of high temperatures and high loads. [Means to Resolve] The friction material composition for the friction material molding containing, as an inorganic friction modifier, 10-40 weight % of a monoclinic zirconium oxide with an average particle diameter of 1-8 ?m relative to the total amount of the friction material composition, 1.Type: GrantFiled: October 3, 2016Date of Patent: June 2, 2020Assignee: NISSHINBO BRAKE INC.Inventors: Mitsuaki Yaguchi, Shinya Kaji, Tomomi Iwai
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Publication number: 20200032869Abstract: The present invention addresses the problem of providing a friction material for a disc brake pad, which is able to secure effective braking performance and wear resistance during the high speed and high load braking while satisfying laws and regulations relating to copper content. The solution to this problem is using a non-asbestos organic (NAO) friction material for a disc brake pad, which is formed by molding a friction material composition comprising a fiber base material, a binder, and a friction modifier, and specially comprising, as an inorganic friction modifier, 1-10 weight % of one or any combination of two or more of aluminum particles, aluminum fibers, alloy particles mainly containing aluminum, and alloy fibers mainly containing aluminum relative to the total amount of the friction material composition, 5-20 weight % of hard inorganic particles with an average particle diameter of 1-20 ?m and a Mohs hardness of 4.5 to 8.0, and copper content of less than 0.5 weight %.Type: ApplicationFiled: September 4, 2019Publication date: January 30, 2020Applicant: Nisshinbo Brake, Inc.Inventors: Shinya Kaji, Ryo Yamagami, Tomomi Iwai
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Patent number: 10458500Abstract: The present invention provides a friction material for a disc brake pad, which is able to suppress chipping of an edge of the friction material that occurs under the high speed and high load braking conditions and further to suppress the deterioration of the braking effectiveness under the high speed and high load braking conditions while satisfying laws and regulations relating to the required amount of the content of the copper component. A friction material composition that contains 0.5-10 weight % of a resilient graphitic carbon particle relative to the total amount of the friction material composition as a carbon type lubricant and contains the total amount of a copper component contained in the friction material composition is less than 5 weight % relative to the total amount of the friction material composition.Type: GrantFiled: December 2, 2014Date of Patent: October 29, 2019Assignee: Nisshinbo Brake Inc.Inventors: Mitsuaki Yaguchi, Shinya Kaji
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Publication number: 20180298971Abstract: [Object] The present invention provides a friction material used for a disc brake pad, which is manufactured by forming a non-asbestos-organic (NAO) friction material composition that does not contain a copper component, which provides an excellent wear resistance and a highly stable braking effectiveness even after being subjected to a history of high temperatures and high loads. [Means to Resolve] The friction material composition for the friction material molding containing, as an inorganic friction modifier, 10-40 weight % of a monoclinic zirconium oxide with an average particle diameter of 1-8 ?m relative to the total amount of the friction material composition, 1.Type: ApplicationFiled: October 3, 2016Publication date: October 18, 2018Applicant: NISSHINBO BRAKE, INC.Inventors: Mitsuaki YAGUCHI, Shinya KAJI, Tomomi IWAI
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Publication number: 20180290969Abstract: The invention relates to a stabilizer for L-012 or a salt thereof, a stabilization method for L-012 or a salt thereof, coexisting with the stabilizer and L-012 or a salt thereof, and the like. The stabilizer is represented by Formula [1]: wherein p pieces of M1 each independently represent a hydrogen atom or an alkali metal atom, q pieces of R1 each independently represent a hydroxy group or a sulfonic acid group, m represents 0 or 1, p represents an integer of 1 to 3, q represents an integer of 0 to 4, Y represents a nitrogen atom or a CH group (a methine group), and Z represents an aryl group having a specific structure or a pyrazolyl group having a specific structure.Type: ApplicationFiled: October 20, 2016Publication date: October 11, 2018Applicant: FUJIFILM WAKO PURE CHEMICAL CHEMICAL CORPORATIONInventors: Shinya KAJI, Toshinari OHASHI, Naoyuki YAMAMOTO
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Publication number: 20170234390Abstract: [OBJECT] The present invention provides a friction material used for a disc brake pad, which is able to secure the braking effectiveness and the wear resistance under the high speed and high load braking conditions while satisfying laws and regulations relating to the required amount of the content of the copper component. [MEANS TO SOLVE THE PROBLEM] A friction material used for a disc brake pad, which is manufactured by forming a non-asbestos organic friction material composition, in which the friction material composition contains 1-15 weight % of ferrous sulfide (FeS) particles relative to the total amount of the friction material composition as a lubricant, and the total amount of the copper component involved in the friction material composition is less than 5 weight % relative to the total amount of the friction material composition. Furthermore, it is preferable to contain 0.Type: ApplicationFiled: July 24, 2014Publication date: August 17, 2017Applicant: Nisshinbo Brake, Inc.Inventors: Shinya Kaji, Makoto TAMURA, Mitsuaki YAGUCHI
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Publication number: 20160356332Abstract: The present invention provides a friction material for a disc brake pad, which is able to suppress chipping of an edge of the friction material that occurs under the high speed and high load braking conditions and further to suppress the deterioration of the braking effectiveness under the high speed and high load braking conditions while satisfying laws and regulations relating to the required amount of the content of the copper component. A friction material composition that contains 0.5-10 weight % of a resilient graphitic carbon particle relative to the total amount of the friction material composition as a carbon type lubricant and contains the total amount of a copper component contained in the friction material composition is less than 5 weight % relative to the total amount of the friction material composition.Type: ApplicationFiled: December 2, 2014Publication date: December 8, 2016Applicant: Nisshinbo Brake, Inc.Inventors: Mitsuaki YAGUCHI, Shinya KAJI
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Publication number: 20160230827Abstract: The present invention addresses the problem of providing a friction material for a disc brake pad, which is able to secure effective braking performance and wear resistance during the high speed and high load braking while satisfying laws and regulations relating to copper content. The solution to this problem is using a non-asbestos organic (NAO) friction material for a disc brake pad, which is formed by molding a friction material composition comprising a fiber base material, a binder, and a friction modifier, and specially comprising, as an inorganic friction modifier, 1-10 weight % of one or any combination of two or more of aluminum particles, aluminum fibers, alloy particles mainly containing aluminum, and alloy fibers mainly containing aluminum relative to the total amount of the friction material composition, 5-20 weight % of hard inorganic particles with an average particle diameter of 1-20 ?m and a Mohs hardness of 4.5 or more, and copper content of less than 0.5 weight %.Type: ApplicationFiled: September 9, 2014Publication date: August 11, 2016Applicant: Nisshinbo Brake, Inc.Inventors: Shinya Kaji, Ryo Yamagami, Tomomi Iwai
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Patent number: 8057591Abstract: To provide, without increasing the number of manufacturing steps, a friction material that can effectively inhibit water fade, provide good brake effectiveness and a good wear resistance, and give low aggressiveness against the mating surface. In the friction material comprising the inorganic abrasive material and lubricant, the inorganic abrasive material includes 0.5-10 volume % of the inorganic particle relative to the total amount of the friction material, with Mohs' hardness of 5-8 and the average particle diameter of 0.5-10 ?m, and the graphite and the petroleum coke in amount of 8-15 volume % relative to the total amount of the friction material. Proportion of the graphite and the petroleum coke is 2:8-3:7 volume ratio, and the average particle diameter of the petroleum coke is 400-900 ?m.Type: GrantFiled: March 16, 2009Date of Patent: November 15, 2011Assignee: Nisshinbo Industries, Inc.Inventors: Mitsuaki Yaguchi, Shinya Kaji
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Publication number: 20090239076Abstract: To provide, without increasing the number of manufacturing steps, a friction material that can effectively inhibit water fade, provide good brake effectiveness and a good wear resistance, and give low aggressiveness against the mating surface. In the friction material comprising the inorganic abrasive material and lubricant, the inorganic abrasive material includes 0.5-10 volume % of the inorganic particle relative to the total amount of the friction material, with Mohs' hardness of 5-8 and the average particle diameter of 0.5-10 ?m, and the graphite and the petroleum coke in amount of 8-15 volume % relative to the total amount of the friction material. Proportion of the graphite and the petroleum coke is 2:8-3:7 volume ratio, and the average particle diameter of the petroleum coke is 400-900 ?m.Type: ApplicationFiled: March 16, 2009Publication date: September 24, 2009Applicant: NISSHINBO INDUSTRIES, INCInventors: Mitsuaki Yaguchi, Shinya Kaji