Patents by Inventor Koki Sugihara
Koki Sugihara 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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Publication number: 20240093001Abstract: An object of the present invention is to provide a rubber composition for hoses that can be a cured product having excellent hardness and elongation at break through only primary crosslinking. The present invention is a rubber composition for hoses including a ternary copolymer including each constituent unit of ethylene, a (meth)acrylic acid ester, and a carboxyl group-containing monomer including a carboxyl group, hexamethylenediamine carbamate, diazabicycloundecene, carbon black, and a plasticizer, the rubber composition having a content of the carbon black of from 77 to 87 parts by mass per 100 parts by mass of the ternary copolymer, a transmission oil pipe for automobiles formed by using the rubber composition for hoses, and a method for producing the same.Type: ApplicationFiled: August 30, 2021Publication date: March 21, 2024Inventor: Koki SUGIHARA
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Patent number: 11643528Abstract: The present invention is to provide a rubber composition for a hose and the like, the rubber composition having excellent oil resistance and low-temperature performance. A rubber composition for a hose, the rubber composition comprising: a hydrogenated acrylonitrile butadiene rubber having an acrylonitrile amount of 24 mass % or less, a carbon black, a peroxide, and a triallyl isocyanurate; a content of the peroxide being 2.4 parts by mass or more per 100 parts by mass of the hydrogenated acrylonitrile butadiene rubber; and a content of the triallyl isocyanurate being 1.9 parts by mass or more per 100 parts by mass of the hydrogenated acrylonitrile butadiene rubber, and a hose formed by using the rubber composition for a hose.Type: GrantFiled: November 9, 2021Date of Patent: May 9, 2023Assignee: The Yokohama Rubber Co., Ltd.Inventor: Koki Sugihara
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Patent number: 11597189Abstract: A refrigerant-transporting hose including an inner tube, an outer tube, and a reinforcing layer between the inner tube and the outer tube, the outer tube being formed of an outer tube rubber composition, the outer tube rubber composition containing a brominated copolymer rubber obtained by brominating a copolymer rubber of isomonoolefin and p-alkylstyrene, the content of the repeating units having bromine constituting the brominated copolymer rubber being from 0.8 to 1.5 mol % with respect to the total amount of the repeating units constituting the brominated copolymer rubber, a carbon black A having a dibutyl phthalate absorption amount of 40 cm3/100 g or less, a brominated alkylphenol resin, and zinc oxide, the content of the carbon black A being 35 parts by mass or greater with respect to 100 parts by mass of the brominated copolymer rubber. Such refrigerant-transporting hose achieves both workability and sealing property at an excellent level.Type: GrantFiled: September 18, 2020Date of Patent: March 7, 2023Assignee: The Yokohama Rubber Co., Ltd.Inventors: Koki Sugihara, Ikuma Yusa, Daisuke Maeda
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Publication number: 20220275178Abstract: The present invention is to provide a rubber composition for a hose and the like, the rubber composition having excellent oil resistance and low-temperature performance. A rubber composition for a hose, the rubber composition comprising: a hydrogenated acrylonitrile butadiene rubber having an acrylonitrile amount of 24 mass % or less, a carbon black, a peroxide, and a triallyl isocyanurate; a content of the peroxide being 2.4 parts by mass or more per 100 parts by mass of the hydrogenated acrylonitrile butadiene rubber; and a content of the triallyl isocyanurate being 1.9 parts by mass or more per 100 parts by mass of the hydrogenated acrylonitrile butadiene rubber, and a hose formed by using the rubber composition for a hose.Type: ApplicationFiled: November 9, 2021Publication date: September 1, 2022Inventor: Koki Sugihara
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Patent number: 11236997Abstract: A surveying instrument includes: a survey system; an image sensing system, including first and second image sensing units, the second having an angle of view wider than that of the first; horizontal and vertical angle drivers to rotate the survey and image sensing systems around a surveying instrument vertical and horizontal axes, respectively; a data storage part; an angle detecting part; and a control unit to cause an image, based on image data the first or second generates after imaging, a design data object for showing the design data portion locations included in the image, and coordinate measurement point objects for showing the coordinate measurement points locations, to be surveyed, corresponding to the design data portion included in the image, to appear on a representation device in response to the design data stored in the data storage part and the detected angle.Type: GrantFiled: October 24, 2014Date of Patent: February 1, 2022Assignee: NIKON-TRIMBLE CO., LTDInventors: Tomohiro Tanaka, Kazuhito Yamada, Koki Sugihara, Naoko Niimi
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Patent number: 11169183Abstract: A current sensor includes a bus bar, a magnetic core, and a casing. The bus bar includes a plate-shaped portion. The magnetic core surrounds the plate-shaped portion. The casing houses the bus bar and magnetic core. A thickness direction of the magnetic core is along a longitudinal direction of the plate-shaped portion. The casing includes lower and upper casings. The lower casing includes first and second press-fit portions. The first press-fit portion includes a groove portion into which the plate-shaped portion is press-fitted. In a state where the magnetic core is inserted downward into the second press-fit portion, both-side portions of the magnetic core in a width direction are press-fitted and held by the second press-fit portion. The upper casing includes a pressing portion that presses the bus bar and magnetic core downward. The groove portion is recessed downward, and is along a thickness direction of the magnetic core.Type: GrantFiled: November 19, 2019Date of Patent: November 9, 2021Assignee: AISIN CORPORATIONInventors: Daisuke Nakagawa, Koki Sugihara, Toshiro Nagashima
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Publication number: 20210162722Abstract: A refrigerant-transporting hose including an inner tube, an outer tube, and a reinforcing layer between the inner tube and the outer tube, the outer tube being formed of an outer tube rubber composition, the outer tube rubber composition containing a brominated copolymer rubber obtained by brominating a copolymer rubber of isomonoolefin and p-alkylstyrene, the content of the repeating units having bromine constituting the brominated copolymer rubber being from 0.8 to 1.5 mol % with respect to the total amount of the repeating units constituting the brominated copolymer rubber, a carbon black A having a dibutyl phthalate absorption amount of 40 cm3/100 g or less, a brominated alkylphenol resin, and zinc oxide, the content of the carbon black A being 35 parts by mass or greater with respect to 100 parts by mass of the brominated copolymer rubber. Such refrigerant-transporting hose achieves both workability and sealing property at an excellent level.Type: ApplicationFiled: September 18, 2020Publication date: June 3, 2021Inventors: Koki SUGIHARA, Ikuma YUSA, Daisuke MAEDA
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Publication number: 20200399455Abstract: The present invention is to provide a rubber composition exhibiting excellent heat resistance, dimensional stability, and workability, and a hose. The present invention includes a rubber composition containing an ethylene-propylene-diene copolymer (A) containing an ethylene-propylene-diene copolymer (a1) obtained by using a metallocene catalyst, an ethylene-propylene copolymer having a weight average molecular weight of 35000 or less, and sulfur; and a hose formed by using the rubber composition.Type: ApplicationFiled: November 8, 2018Publication date: December 24, 2020Inventor: Koki SUGIHARA
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Publication number: 20200369854Abstract: An object of the present invention is to provide a rubber composition and a hose that can be rubber having excellent bloom resistance. The present invention relates to a rubber composition and a hose having an outer layer formed of the rubber composition, the rubber composition including an ethylene-propylene-diene copolymer, a p-phenylenediamine-based anti-aging agent, carbon black, and zinc oxide, the content of the p-phenylenediamine-based anti-aging agent being 0.1 parts by mass or more and 5.0 parts by mass or less per 100 parts by mass of the ethylene-propylene-diene copolymer.Type: ApplicationFiled: March 23, 2018Publication date: November 26, 2020Inventor: Koki SUGIHARA
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Patent number: 10745544Abstract: Provided are a rubber composition for hoses containing acrylonitrile butadiene rubber, a filler, a resorcin-formaldehyde precondensate, an aldehyde-ammonia vulcanization accelerator, and a fatty acid diester, and a hose including a layer formed using the same.Type: GrantFiled: July 1, 2016Date of Patent: August 18, 2020Assignee: The Yokohama Rubber Co., LTD.Inventor: Koki Sugihara
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Publication number: 20200158758Abstract: A current sensor includes a bus bar, a magnetic core, and a casing. The bus bar includes a plate-shaped portion. The magnetic core surrounds the plate-shaped portion. The casing houses the bus bar and magnetic core. A thickness direction of the magnetic core is along a longitudinal direction of the plate-shaped portion. The casing includes lower and upper casings. The lower casing includes first and second press-fit portions. The first press-fit portion includes a groove portion into which the plate-shaped portion is press-fitted. In a state where the magnetic core is inserted downward into the second press-fit portion, both-side portions of the magnetic core in a width direction are press-fitted and held by the second press-fit portion. The upper casing includes a pressing portion that presses the bus bar and magnetic core downward. The groove portion is recessed downward, and is along a thickness direction of the magnetic core.Type: ApplicationFiled: November 19, 2019Publication date: May 21, 2020Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Daisuke NAKAGAWA, Koki SUGIHARA, Toshiro NAGASHIMA
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Patent number: 10221306Abstract: A rubber composition for a hose of the present technology contains: an ethylene-propylene copolymer having an ethylene content of 40 mass % or greater but less than 60 mass %; an ethylene-1-butene copolymer; and carbon black having a nitrogen adsorption specific surface area of 17 to 52 m2/g; a mass ratio of the ethylene-1-butene copolymer to the ethylene-propylene copolymer (ethylene-1-butene copolymer/ethylene-propylene copolymer) being from 10/90 to 90/10.Type: GrantFiled: September 20, 2017Date of Patent: March 5, 2019Assignee: The Yokohama Rubber Co., LTD.Inventor: Koki Sugihara
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Publication number: 20180264772Abstract: A rubber composition of the present technology includes: a diene polymer containing a butadiene rubber; and a polyhydric alcohol, a content of the polyhydric alcohol being from 0.5 parts by mass to 14 parts by mass per 100 parts by mass of the diene polymer.Type: ApplicationFiled: October 28, 2016Publication date: September 20, 2018Inventor: Koki Sugihara
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Publication number: 20180201766Abstract: Provided are a rubber composition for hoses containing acrylonitrile butadiene rubber, a filler, a resorcin-formaldehyde precondensate, an aldehyde-ammonia vulcanization accelerator, and a fatty acid diester, and a hose including a layer formed using the same.Type: ApplicationFiled: July 1, 2016Publication date: July 19, 2018Inventor: Koki Sugihara
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Publication number: 20180105686Abstract: A rubber composition for a hose of the present technology contains: an ethylene-propylene copolymer having an ethylene content of 40 mass % or greater but less than 60 mass %; an ethylene-1-butene copolymer; and carbon black having a nitrogen adsorption specific surface area of 17 to 52 m2/g; a mass ratio of the ethylene-1-butene copolymer to the ethylene-propylene copolymer (ethylene-1-butene copolymer/ethylene-propylene copolymer) being from 10/90 to 90/10.Type: ApplicationFiled: September 20, 2017Publication date: April 19, 2018Inventor: Koki Sugihara
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Publication number: 20170307370Abstract: A surveying instrument includes: a survey system; an image sensing system, including first and second image sensing units, the second having an angle of view wider than that of the first; horizontal and vertical angle drivers to rotate the survey and image sensing systems around a surveying instrument vertical and horizontal axes, respectively; a data storage part; an angle detecting part; and a control unit to cause an image, based on image data the first or second generates after imaging, a design data object for showing the design data portion locations included in the image, and coordinate measurement point objects for showing the coordinate measurement points locations, to be surveyed, corresponding to the design data portion included in the image, to appear on a representation device in response to the design data stored in the data storage part and the detected angle.Type: ApplicationFiled: October 24, 2014Publication date: October 26, 2017Applicant: NIKON-TRIMBLE CO., LTDInventors: Tomohiro TANAKA, Kazuhito YAMADA, Koki SUGIHARA, Naoko NIIMI
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Patent number: 7617575Abstract: Snap fasteners are attached to a fabric or substrate and resist water migration from one side of the fabric or substrate to an opposite side of the fabric or substrate. The water migration resistant snap fasteners resist water migration through the fabric to which the snap fastener is attached while maintaining secure attachment to the fabric. The water migration resistant snap fasteners have radially offset patterned circles of gripping protrusions which do not penetrate through the fabric. Also, the radial patterned circles of gripping protrusions securely grip the fabric and maintain the snap fasteners in the proper location on the fabric.Type: GrantFiled: October 9, 2007Date of Patent: November 17, 2009Assignee: YKK CorporationInventors: Koki Sugihara, Katsushi Kitano
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Publication number: 20090089978Abstract: Snap fasteners are attached to a fabric or substrate and resist water migration from one side of the fabric or substrate to an opposite side of the fabric or substrate. The water migration resistant snap fasteners resist water migration through the fabric to which the snap fastener is attached while maintaining secure attachment to the fabric. The water migration resistant snap fasteners have radially offset patterned circles of gripping protrusions which do not penetrate through the fabric. Also, the radial patterned circles of gripping protrusions securely grip the fabric and maintain the snap fasteners in the proper location on the fabric.Type: ApplicationFiled: October 9, 2007Publication date: April 9, 2009Inventors: Koki Sugihara, Katsushi Kitano
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Publication number: 20050235462Abstract: A first base material having a number of male engaging elements (112) formed of synthetic resin on a surface thereof and a second base material (121) are jointed and secured each other through a column-like joint portion (131). There is provided a male fixing member for sheets, which facilitates attachment operation to clothes or suspension cloths, has a durability, never loses appearance when it is mounted on clothes and allows even an infant to engage or disengage the male fixing members easily by an engagement/disengagement function of a surface fastener.Type: ApplicationFiled: March 4, 2003Publication date: October 27, 2005Inventors: Yoshinobu Takahashi, Koki Sugihara