Patents by Inventor Tasuku Sakurai
Tasuku Sakurai 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: 9745532Abstract: Polyurea crosslinked particles for a transport device member are provided that have high acid resistance, increase long-term retainability when included in a coating film, and are capable of maintaining a high sliding property for a long time. The polyurea crosslinked particles for a transport device member are particles formed of reactants of a self-emulsifying isocyanate having two or more isocyanate groups and a non-self-emulsifying isocyanate having two or more isocyanate groups and having a ring structure in the presence of water and a crosslink density thereof is 1×10?4 mol/g or more.Type: GrantFiled: June 2, 2016Date of Patent: August 29, 2017Assignees: Honda Motor Co., Ltd., Negami Chemical Industrial Co., Ltd.Inventors: Tasuku Sakurai, Keiko Nishita
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Publication number: 20160362625Abstract: Polyurea crosslinked particles for a transport device member are provided that have high acid resistance, increase long-term retainability when included in a coating film, and are capable of maintaining a high sliding property for a long time. The polyurea crosslinked particles for a transport device member are particles formed of reactants of a self-emulsifying isocyanate having two or more isocyanate groups and a non-self-emulsifying isocyanate having two or more isocyanate groups and having a ring structure in the presence of water and a crosslink density thereof is 1×10?4 mol/g or more.Type: ApplicationFiled: June 2, 2016Publication date: December 15, 2016Inventors: Tasuku SAKURAI, Keiko NISHITA
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Patent number: 9029302Abstract: [Task] In a sliding member comprising a substrate and a coating layer provided thereon, the coating layer has a sliding surface and is formed of a resin-based coating and particles of a solid lubricant dispersed therein. The orientation ratio of (001) plane of the solid lubricant is enhanced. [Means for Solution] The coating layer of a sliding layer has an average thickness of 3 ?m or less. The particles of the solid lubricant have 2 ?m or more of an average particle diameter as measured by the laser diffraction method. The solid lubricant dispersed has 90% or more of relative C-axis intensity ratio.Type: GrantFiled: March 7, 2011Date of Patent: May 12, 2015Assignees: Taiho Kogyo Co., Ltd., Honda Motor Co., Ltd.Inventors: Soji Kamiya, Tasuku Sakurai
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Patent number: 8998500Abstract: A bearing seal structure includes: a ridge portion provided on an inner race; a groove portion provided on an outer race; and a grease reservoir that is defined by the ridge portion and the groove portion and contains grease for providing a seal between the inner race and outer race.Type: GrantFiled: December 16, 2011Date of Patent: April 7, 2015Assignee: Honda Motor Co., Ltd.Inventors: Morinobu Kawamura, Tasuku Sakurai
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Patent number: 8894289Abstract: A sealing device for an axle bearing includes a lubricant maintained on sliding contact surfaces, thereby suppressing elevation of torque due to the depletion of grease. A lubricant-adsorbing layer comprises a thickener and a binder. The lubricant comprises a base oil and a thickener. The thickener and the thickener are mutually attracted. A lubricant layer of a prescribed thickness is formed on the lubricant-adsorbing layer. This lubricant layer adheres closely to the lubricant-adsorbing layer making it difficult to separate the lubricant layer from the lubricant-adsorbing layer.Type: GrantFiled: May 25, 2012Date of Patent: November 25, 2014Assignee: Honda Motor Co., Ltd.Inventors: Tasuku Sakurai, Morinobu Kawamura
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Publication number: 20140093200Abstract: In the present invention, disclosed is a sealing device for an axle bearing wherein a lubricant is maintained on sliding contact surfaces, thereby suppressing elevation of torque due to the depletion of grease. A lubricant-adsorbing layer (40) comprises a thickener (41) and a binder (42). The lubricant (25) comprises a base oil (43) and a thickener (41B). The thickener (41) and the thickener (41B) are mutually attracted. A lubricant layer (44) of a prescribed thickness is formed on the lubricant-adsorbing layer (40). This lubricant layer (44) adheres closely to the lubricant-adsorbing layer (40) making it difficult to separate the lubricant layer from the lubricant-adsorbing layer (40).Type: ApplicationFiled: May 25, 2012Publication date: April 3, 2014Applicant: HONDA MOTOR CO., LTD.Inventors: Tasuku Sakurai, Morinobu Kawamura
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Publication number: 20130337271Abstract: It is an object of the invention to provide a sliding material composition and a sliding member capable of achieving low friction property at starting time and during sliding and also being excellent in abrasion resistance, especially when a counterpart sliding member is a rubber-based material. The invention relates to a sliding material composition for use in a sliding member whose counterpart sliding member is configured of rubber, the sliding material composition comprising a binder resin, 5 to 25 vol % of an N?-monoacyl basic amino acid, 5 to 25 vol % of molybdenum disulfide, and 5 to 20 vol % of polytetrafluoroethylene.Type: ApplicationFiled: February 16, 2012Publication date: December 19, 2013Applicants: HONDA MOTOR CO., LTD., TAIHO KOGYO CO., LTD.Inventors: Masaru Yoshikawa, Takashi Tomikawa, Toru Kawai, Tasuku Sakurai
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Publication number: 20120270761Abstract: [Task] In a sliding member comprising a substrate and a coating layer provided thereon, the coating layer has a sliding surface and is formed of a resin-based coating and particles of a solid lubricant dispersed therein. The orientation ratio of (001) plane of the solid lubricant is enhanced. [Means for Solution] The coating layer of a sliding layer has an average thickness of 3 ?m or less. The particles of the solid lubricant have 2 ?m or more of an average particle diameter as measured by the laser diffraction method. The solid lubricant dispersed has 90% or more of relative C-axis intensity ratio.Type: ApplicationFiled: March 7, 2011Publication date: October 25, 2012Applicants: HONDA MOTOR CO., LTD., TAIHO KOGYO CO., LTD.Inventors: Soji Kamiya, Tasuku Sakurai
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Patent number: 8242064Abstract: [Task] The solid-lubricant layer applied on the surface of Al or Cu-based bearing alloy is improved so as to satisfactorily demonstrate the properties of the solid lubricant. [Means for Solution] The solid lubricant dispersed in the solid-lubricant solid-lubricant layer exhibits 85% or more of the relative C axis intensity ratio defined below. The relative C axis intensity ratio=the accumulative intensity of (002), (004) and (008) planes relative to the accumulative intensity of (002), (004), (100), (101), (102), (103), (105), (110) and (008) planes detected by X ray diffraction.Type: GrantFiled: October 4, 2007Date of Patent: August 14, 2012Assignee: Taiho Kogyo Co., Ltd.Inventors: Soji Kamiya, Tasuku Sakurai, Mitsunori Arimura
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Publication number: 20120155791Abstract: A bearing seal structure includes: a ridge portion provided on an inner race; a groove portion provided on an outer race; and a grease reservoir that is defined by the ridge portion and the groove portion and contains grease for providing a seal between the inner race and outer race.Type: ApplicationFiled: December 16, 2011Publication date: June 21, 2012Applicant: HONDA MOTOR CO., LTD.Inventors: Morinobu Kawamura, Tasuku Sakurai
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Publication number: 20100144564Abstract: [Task] The solid-lubricant layer applied on the surface of Al or Cu-based bearing alloy is improved so as to satisfactorily demonstrate the properties of the solid lubricant. [Means for Solution] The solid lubricant dispersed in the solid-lubricant solid-lubricant layer exhibits 85% or more of the relative C axis intensity ratio defined below. The relative C axis intensity ratio=the accumulative intensity of (002), (004) and (008) planes relative to the accumulative intensity of (002), (004), (100), (101), (102), (103), (105), (110) and (008) planes detected by X ray diffraction.Type: ApplicationFiled: October 4, 2007Publication date: June 10, 2010Inventors: Soji Kamiya, Tasuku Sakurai, Mitsunori Arimura
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Publication number: 20090214887Abstract: A sliding member comprises an overlay layer that is formed on a copper alloy layer including a second phase composition. The copper alloy layer and the overlay layer have an interface therebetween, and the second phase composition is included in the copper alloy layer except the interface.Type: ApplicationFiled: February 18, 2009Publication date: August 27, 2009Applicants: DAIDO METAL COMPANY LTD., HONDA MOTOR CO., LTD.Inventors: Masahito FUJITA, Hideo TSUJI, Kouji ZUSHI, Tasuku SAKURAI, Takashi SHIRAISHI, Mitsunori ARIMURA