Patents by Inventor Tomohiro Urata

Tomohiro Urata 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).

  • Patent number: 10662319
    Abstract: Provided is a rubber composition in which static ozone resistance, dynamic ozone resistance and discoloration resistance are highly balanced. Also provided is a tire in which static ozone resistance, dynamic ozone resistance and discoloration resistance are highly balanced. The rubber composition comprises a rubber component, a petroleum wax, and an antidegradant, wherein the petroleum wax comprises a C20-C34 hydrocarbon component and a C35 or higher hydrocarbon component, and a proportion of the C20-C34 hydrocarbon component is 15% by mass to 30% by mass and a proportion of the C35 or higher hydrocarbon component is 70% by mass to 85% by mass, based on a total mass of the C20-C34 hydrocarbon component and the C35 or higher hydrocarbon component.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: May 26, 2020
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Tomohiro Urata, Seiichi Tahara
  • Patent number: 10640579
    Abstract: The present invention provides a modified conjugated diene polymer in which a phenoxy group of a polar group-containing phenoxy compound is bonded to at least one selected from the group consisting of the end, main chain, and side chain of a conjugated diene polymer, which can further improve a rubber composition in the low-heat-generation property and abrasion resistance, and a rubber composition using the same.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: May 5, 2020
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Tomohiro Urata
  • Publication number: 20190264010
    Abstract: Provided is a rubber composition in which static ozone resistance, dynamic ozone resistance and discoloration resistance are highly balanced. Also provided is a tire in which static ozone resistance, dynamic ozone resistance and discoloration resistance are highly balanced. The rubber composition comprises a rubber component, a petroleum wax, and an antidegradant, wherein the petroleum wax comprises a C20-C34 hydrocarbon component and a C35 or higher hydrocarbon component, and a proportion of the C20-C34 hydrocarbon component is 15% by mass to 30% by mass and a proportion of the C35 or higher hydrocarbon component is 70% by mass to 85% by mass, based on a total mass of the C20-C34 hydrocarbon component and the C35 or higher hydrocarbon component.
    Type: Application
    Filed: October 12, 2017
    Publication date: August 29, 2019
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Tomohiro URATA, Seiichi TAHARA
  • Publication number: 20190113898
    Abstract: A setting system 1 includes a device configuration database DB1 that stores setting data in a first format in which a device parameter to be set to a field device 11 and identification information that logically identifies the device parameter are associated, and for which authority prescribed in advance is required in order to change the stored data, and in which, using device configuration information specifying the physical structure of the field device 11 and the setting data in the first format obtained by reference to the database DB1, setting data is generated in a second format in which physical information specifying the physical address at which the device parameter is to be set is associated with the device parameter, and is set to the field device. According to this setting system, it is possible to perform exchange of a field device without any requirement for engineering by a system engineer, thereby avoiding a device in production efficiency.
    Type: Application
    Filed: October 10, 2018
    Publication date: April 18, 2019
    Applicant: YOKOGAWA ELECTRIC CORPORATION
    Inventors: Hiroshi Mori, Fuyuki Mizushima, Tomohiro Urata
  • Publication number: 20180371291
    Abstract: An object of the present invention is to provide a coating composition that is capable of providing a cured film excellent in adhesion to a base material and flexural fatigue resistance. Another object of the present invention is to provide a cured film obtained from the coating composition, and a laminate and a tire each having the cured film formed thereon. The coating composition of the present invention contains a polythiol compound (A), a polyurethane having an ethylenically unsaturated group (B), and a radical generator (C).
    Type: Application
    Filed: December 15, 2016
    Publication date: December 27, 2018
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Tomohiro URATA, Shinichi MUSHA, Kotaro HAYAKAWA, Tatsuya FUNAKI, Akihide OOSAKU
  • Publication number: 20180345737
    Abstract: Provided is a tire on which cracks on sidewall portion outer surfaces are unlikely to progress. The tire comprises a depthwise part I from a point on a sidewall portion outer surface to 0.5 mm on at least a part of a sidewall portion, wherein: the depthwise part I satisfies the following requirement: the depthwise part I: comprising a natural rubber, a butadiene rubber, and a thermoplastic elastomer; a peak temperature T1 (° C.) of tan ? is ?20° C. or more and ?5° C. or less; and when tan ? at the peak temperature T1 (° C.) is ?1 and a storage modulus at the peak temperature T1 (° C.) is E?1 (MPa), ?1?0.90 and E?1?MPa.
    Type: Application
    Filed: December 2, 2016
    Publication date: December 6, 2018
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Seiichi TAHARA, Shinichi MUSHA, Tomohiro URATA, Tatsuya NOMOTO
  • Publication number: 20180016361
    Abstract: The present invention provides a modified conjugated diene polymer in which a phenoxy group of a polar group-containing phenoxy compound is bonded to at least one selected from the group consisting of the end, main chain, and side chain of a conjugated diene polymer, which can further improve a rubber composition in the low-heat-generation property and abrasion resistance, and a rubber composition using the same.
    Type: Application
    Filed: January 21, 2016
    Publication date: January 18, 2018
    Applicant: BRIDGESTONE CORPORATION
    Inventor: Tomohiro URATA
  • Patent number: 9012535
    Abstract: The present invention is to provide a production method of a natural rubber master batch including a step of mixing a natural rubber latex and an aqueous slurry having carbon black dispersed in water, wherein a mixing amount of the carbon black is from 10 to 100 parts by mass based on 100 parts by mass of a natural rubber component; and the carbon black is satisfied with the relationships expressed by (1) 120<CTAB adsorption specific surface area<160, (2) 50<24M4DBP<100, and (3) 75<toluene discoloration transmittance<95. Also, the present invention is to provide a natural rubber master batch obtained by the subject production method. Furthermore, the present invention is to provide a rubber composition using the foregoing natural rubber master batch and a tire using the subject rubber composition.
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: April 21, 2015
    Assignee: Bridgestone Corporation
    Inventors: Hiroshi Yamada, Atsushi Nakayama, Tomohiro Urata
  • Publication number: 20100311898
    Abstract: The present invention is to provide a production method of a natural rubber master batch including a step of mixing a natural rubber latex and an aqueous slurry having carbon black dispersed in water, wherein a mixing amount of the carbon black is from 10 to 100 parts by mass based on 100 parts by mass of a natural rubber component; and the carbon black is satisfied with the relationships expressed by (1) 120<CTAB adsorption specific surface area<160, (2) 50<24M4DBP<100, and (3) 75<toluene discoloration transmittance<95. Also, the present invention is to provide a natural rubber master batch obtained by the subject production method. Furthermore, the present invention is to provide a rubber composition using the foregoing natural rubber master batch and a tire using the subject rubber composition.
    Type: Application
    Filed: November 25, 2008
    Publication date: December 9, 2010
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Hiroshi Yamada, Atsushi Nakayama, Tomohiro Urata