Patents by Inventor Tatsuya Miyazaki

Tatsuya Miyazaki 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).

  • Publication number: 20170327670
    Abstract: The present invention provides a pneumatic tire including a tread formed from a rubber composition that can simultaneously highly improve initial grip performance and stable grip performance during the middle and late periods of running, and further can reduce the occurrence of blowing even during high-temperature running. The present invention relates to a pneumatic tire including a tread, the tread being formed from a rubber composition containing a diene rubber, the rubber composition further containing a hydrogenated terpene aromatic resin obtained by hydrogenation of the double bonds of a terpene aromatic resin, the hydrogenated terpene aromatic resin having a degree of hydrogenation of double bonds of 5-100%, a hydroxyl value of 20 mg KOH/g or less, and a softening point of 116-180° C., the hydrogenated terpene aromatic resin being present in an amount of 1-50 parts by mass per 100 parts by mass of the diene rubber.
    Type: Application
    Filed: December 9, 2015
    Publication date: November 16, 2017
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Tatsuya MIYAZAKI, Kensuke WASHIZU
  • Publication number: 20170306130
    Abstract: The invention aims to provide a rubber composition for outer layers of tires capable of reducing the generation of odors while maintaining or improving good elongation at break and processability, and a pneumatic tire using the same. Included is a rubber composition for outer layers of tires, including: a rubber component; a nonionic surfactant or polyethylene glycol; and a vulcanization accelerator represented by formula (1) below, the rubber component including a diene rubber in an amount of 70-100% by mass based on 100% by mass of the rubber component, the rubber composition including, per 100 parts by mass of the rubber component, 0.2-6.0 parts by mass of the nonionic surfactant or polyethylene glycol, 0.2-10 parts by mass of the vulcanization accelerator, and not more than 0.5 parts by mass of N-tert-butyl-2-benzothiazolylsulfenamide, wherein R11 represents a C2-C16 alkyl group, and R12 represents a C3-C16 branched alkyl group or a benzothiazolylsulfide group.
    Type: Application
    Filed: November 5, 2015
    Publication date: October 26, 2017
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Tatsuya MIYAZAKI
  • Patent number: 9796826
    Abstract: A rubber composition that achieves a balanced improvement in wet grip performance, abrasion resistance, and roll processability, and a pneumatic tire formed from the rubber composition. The rubber composition includes, per 100 parts by mass of a rubber component, 1-60 parts by mass of an inorganic reinforcing agent having an average particle size of 0.69 ?m or less and a nitrogen adsorption specific surface area of 10-50 m2/g, the inorganic reinforcing agent being represented by the following formula: kM1.xSiOy.zH2O wherein M1 represents at least one metal selected from the group consisting of Al, Mg, Ti, Ca, and Zr, or an oxide or hydroxide of the metal; k represents an integer of 1 to 5; x represents an integer of 0 to 10; y represents an integer of 2 to 5; and z represents an integer of 0 to 10.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: October 24, 2017
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Tatsuya Miyazaki
  • Patent number: 9795945
    Abstract: An object of the present invention is to provide an exhaust gas purification catalyst for purifying exhaust gas, in particular, fine composite-metal particles contained therein, and a method for producing the same; the exhaust gas purification catalyst according to the present invention includes fine composite-metal particles containing Rh and Pd, wherein, when the fine composite-metal particles in the exhaust gas purification catalyst are analyzed by STEM-EDX, the average ratio of the amount of Pd with respect to the total amount of Rh and Pd in the fine composite-metal particles is 1.7 atomic % or more and 24.8 atomic % or less.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: October 24, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shogo Shirakawa, Yui Kamada, Tatsuya Miyazaki
  • Publication number: 20170253728
    Abstract: Provided are: a rubber composition for treads which contains a diene rubber in the rubber component and can simultaneously achieve blowing resistance during dry running, wet grip performance and abrasion resistance; and a pneumatic tire including a tread formed from the rubber composition for treads. The rubber composition contains: a diene rubber including styrene-butadiene rubber; zinc dithiophosphate; an inorganic filler including at least one selected from the group consisting of: a compound of the formula: mM.xSiOy.zH2O wherein M represents at least one metal selected from the group consisting of Al, Mg, Ti, Ca, and Zr, or an oxide or hydroxide of the metal, m represents an integer of 1-5, x represents an integer of 0-10, y represents an integer of 2-5, and z represents an integer of 0-10; magnesium sulfate; and silicon carbide, and having a BET value of 5-120 m2/g and a linseed oil absorption of 30-80 mL/100 g; and sulfur, wherein, per 100 parts by mass of the diene rubber, there are 0.
    Type: Application
    Filed: July 29, 2015
    Publication date: September 7, 2017
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Tatsuya MIYAZAKI
  • Publication number: 20170253730
    Abstract: Provided is a high performance tire including a tread formed from a rubber composition which achieves a balanced improvement in grip performance, abrasion resistance, and processability. The present invention relates to a high performance tire including a tread formed from a rubber composition, the rubber composition containing: a rubber component including a styrene-butadiene copolymer (1); a styrene-butadiene copolymer (2); and a hydrogenated terpene aromatic resin, the styrene-butadiene copolymer (1) and the styrene-butadiene copolymer (2) differing in styrene content by 10% by mass or more.
    Type: Application
    Filed: February 9, 2017
    Publication date: September 7, 2017
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Hiroki NAKAJIMA, Tatsuya MIYAZAKI
  • Publication number: 20170222645
    Abstract: A multidirectional input device includes a case, and a movable body that is restrained from rotating relative to the case, disposed so as to face the case, and mounted on the case so as to be movable in directions with a predetermined neutral position as a base point. The multidirectional input device further includes a first position detector that outputs a first signal in response to a position of the movable body, and a cam part formed on one of a surface, facing the case, of the movable body, and a surface, facing the movable body, of the case. The multidirectional input device further includes a restraint member having a tip which is in elastic contact with the cam part to urge the movable body to the neutral position, and a second position detector that outputs a second signal in response to a position of the restraint member.
    Type: Application
    Filed: September 2, 2015
    Publication date: August 3, 2017
    Inventors: TATSUYA MIYAZAKI, YOSUKE OHASHI
  • Publication number: 20170210881
    Abstract: Provided is a rubber composition that can improve hysteresis loss to allow for simultaneous improvement in initial grip performance and stable grip performance during mid and late running while ensuring good abrasion resistance. The present invention relates to a rubber composition containing: a rubber component; sulfur; and a specific compound, the rubber composition containing 60% to 100% by mass of a diene rubber based on 100% by mass of the rubber component, the rubber composition containing 0.1 to 30 parts by mass of the specific compound per 100 parts by mass of the rubber component.
    Type: Application
    Filed: July 27, 2015
    Publication date: July 27, 2017
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Tatsuya MIYAZAKI
  • Publication number: 20170213671
    Abstract: A multidirectional input device of the present disclosure includes a case, a movable body that is mounted on the case so as to be movable in a plurality of directions with a predetermined neutral position as a base point, a first position detector that outputs a first signal in response to a position of the movable body, a second position detector that outputs a second signal when the movable body is located at the neutral position, and a controller that detects a moving direction of the movable body by the first signal. The controller corrects a threshold value for determination for detecting the moving direction in response to the first signal and the second signal.
    Type: Application
    Filed: September 2, 2015
    Publication date: July 27, 2017
    Inventors: YOSUKE OHASHI, TATSUYA MIYAZAKI
  • Patent number: 9708476
    Abstract: Provided are a rubber composition for tires preventing discoloration and improving ozone resistance while maintaining or improving good elongation at break, and a pneumatic tire using the rubber composition. Included is a rubber composition for tires including: a rubber component; a naturally occurring wax containing 40-98% by mass of an ester component; a phenylenediamine antioxidant and/or a quinone antioxidant; and a specific nonionic surfactant, the rubber composition having an amount of diene rubber of 70-100% by mass per 100% by mass of the rubber component, the rubber composition having an amount of the naturally occurring wax of 0.01-5.0 parts by mass, an amount of petroleum-derived wax of 0-6.0 parts by mass, a combined amount of the phenylenediamine antioxidant and the quinone antioxidant of 1.0-8.0 parts by mass, and an amount of the nonionic surfactant of 0.1-5.0 parts by mass, each per 100 parts by mass of the rubber component.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: July 18, 2017
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Tatsuya Miyazaki, Ryuichi Tokimune
  • Publication number: 20170174001
    Abstract: Provided are: a rubber composition for treads having high grip performance, abrasion resistance, and tensile properties and capable of reducing the occurrence of blowing even during high-temperature running although it is a high softener content composition incorporating at least a certain amount of a softener with a rubber component including diene rubber; and a pneumatic tire including a tread formed from the rubber composition for treads. Included is a rubber composition for treads containing: a diene rubber including styrene-butadiene rubber; at least one softener selected from the group consisting of low temperature plasticizers, process oils, and resins having a softening point of 160° C. or lower; zinc dithiophosphate; and sulfur, wherein, per 100 parts by mass of the diene rubber, there are 40 parts by mass or more of the softener, 0.2-15 parts by mass of the zinc dithiophosphate, and less than 2.5 parts by mass of zinc oxide.
    Type: Application
    Filed: June 16, 2015
    Publication date: June 22, 2017
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Tatsuya MIYAZAKI, Kensuke WASHIZU
  • Publication number: 20170121490
    Abstract: Provided are a rubber composition that can achieve a balanced improvement in wet grip performance, abrasion resistance, and abrasion appearance after abrasion, and a pneumatic tire including a tread formed from the rubber composition. Included is a rubber composition containing: a rubber component including a diene rubber; an inorganic filler having a BET of 10-120 m2/g, formed of a compound of formula below, magnesium sulfate, or silicon carbide; and a fine particle carbon black having a BET of 151 m2/g or more and/or a low-temperature plasticizer having a freezing point of ?10° C. or lower, the rubber composition containing, per 100 parts by mass of the rubber component, 1-70 parts by mass of the inorganic filler, 5-140 parts by mass of the fine particle carbon black, and 1-30 parts by mass of the low-temperature plasticizer, the combined amount of the filler and the carbon black being 50-190 parts by mass, mM.xSiOy.
    Type: Application
    Filed: April 22, 2015
    Publication date: May 4, 2017
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Tatsuya MIYAZAKI
  • Patent number: 9579929
    Abstract: The present invention provides a pneumatic tire having excellent durability. Provided is a pneumatic tire including a sidewall and a carcass, the sidewall being produced from a rubber composition for a sidewall which has a specific sulfur content, the carcass being produced from a carcass cord covered with a rubber composition for a carcass topping, and the sulfur contents of the rubber composition for a sidewall and the rubber composition for a carcass topping satisfying a specific relationship. Provided is a pneumatic tire including a clinch and a carcass, the clinch being produced from a rubber composition for a clinch which has a specific sulfur content, the carcass being produced from a carcass cord covered with a rubber composition for a carcass topping, and the sulfur contents of the rubber composition for a clinch and the rubber composition for a carcass topping satisfying a specific relationship.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: February 28, 2017
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Tatsuya Miyazaki
  • Patent number: 9567454
    Abstract: The invention provides rubber compositions for tire inner layers, capable of providing excellent ozone resistance over a wide environmental temperature range and of preventing discoloration well, as well as pneumatic tires including such compositions. The invention relates to a rubber composition for tire inner layers, containing C20-C32 normal alkanes. Preferably, the combined amount of the C20-C32 normal alkanes is 0.1-2.5 parts by mass, and the combined amount of phenylenediamine and quinone antioxidants is 0-4 parts by mass, each per 100 parts by mass of the diene rubber component. The rubber composition for tire inner layers preferably contains C48 and higher normal alkanes in a combined amount of not more than 0.1 parts by mass per 100 parts by mass of the diene rubber component. The rubber composition preferably contains not more than 15 parts by mass of process oil per 100 parts by mass of the diene rubber component.
    Type: Grant
    Filed: October 18, 2012
    Date of Patent: February 14, 2017
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Tatsuya Miyazaki
  • Publication number: 20170015812
    Abstract: Provided is a rubber composition for tires which can prevent discoloration and improve ozone resistance while maintaining or improving good elongation at break, and further can be produced with high efficiency. Also provided are a pneumatic tire formed from the same, and a method for producing the same. Included is a rubber composition for tires, including: a rubber component; a phenylenediamine antioxidant; and a masterbatch, the masterbatch containing a specific nonionic surfactant and a silica having a BET value of 40-250 m2/g at a mass ratio of 1:5 to 1:0.15, the rubber component containing a diene rubber in an amount of 70-100% by mass per 100% by mass of the rubber component, the rubber composition including, per 100 parts by mass of the rubber component, 1.0-10.0 parts by mass of the phenylenediamine antioxidant and 0.1-5.0 parts by mass of the nonionic surfactant introduced in the form of the masterbatch.
    Type: Application
    Filed: October 21, 2014
    Publication date: January 19, 2017
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Tatsuya MIYAZAKI, Ryuichi TOKIMUNE
  • Publication number: 20160368324
    Abstract: The present invention provides a pneumatic tire capable of preventing discoloration while exhibiting good TGC resistance even after the tire having a reduced sub-tread thickness at the base of the tread main groove is stored. The present invention relates to a pneumatic tire including a tread portion, the tread portion including a jointless band and at least two tire components selected from the group consisting of a cap tread, a base tread, and an undertread, the rubber composition for cap treads having an amount of phenylenediamine antioxidant of a specific value or less, the cap tread, the base tread, the undertread, and the upper layer of the jointless band having amounts of phenylenediamine antioxidant satisfying a specific relational expression, the rubber composition for undertreads containing a specific amount of sulfur, the pneumatic tire having a sub-tread thickness at the base of the tread main groove of 0.5 to 2.0 mm.
    Type: Application
    Filed: June 13, 2014
    Publication date: December 22, 2016
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Tatsuya MIYAZAKI
  • Publication number: 20160311257
    Abstract: Provided is a pneumatic tire including a tire inner layer which achieves a balanced improvement in steering response, fuel economy, durability, and extrusion processability. Included is a pneumatic tire including a tire inner layer, the tire inner layer including a rubber composition that contains a rubber component, a carbon black, and an alkylphenol-sulfur chloride condensate, the carbon black having a BET specific surface area of 20-120 m2/g, the rubber composition containing, per 100 parts by mass of the rubber component, 40-100 parts by mass of the carbon black and 2.5-10 parts by mass of the alkylphenol-sulfur chloride condensate, the rubber composition having an amount of low reinforcing inorganic filler of not more than 40 parts by mass per 100 parts by mass of the rubber component and an amount of reactive phenolic resin of less than 2.0 parts by mass per 100 parts by mass of the rubber component.
    Type: Application
    Filed: December 8, 2014
    Publication date: October 27, 2016
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Tatsuya MIYAZAKI
  • Publication number: 20160303240
    Abstract: The purpose of the present invention is to provide a novel injectable agent having an excellent medicinal agent sustained release property. The injectable agent according to the present invention comprises a medicinal agent, trehalose and gellan gum. It is preferred that the contents of the medicinal agent, trehalose and gellan gum are 0.0001 to 50.00% (w/v), 0.1 to 50.0% (w/v) and 0.01 to 3.00% (w/v), respectively, relative to the total volume of the injectable agent. It is also preferred that the injectable agent can form a depot upon exposure to a phosphate buffer solution or a body fluid (tear fluid, vitreous fluid, etc.).
    Type: Application
    Filed: June 23, 2016
    Publication date: October 20, 2016
    Inventors: Kenji OKI, Kazuhito YAMADA, Tatsuya MIYAZAKI, Komei OKABE, Sayo HABASHITA, Hiroshi ENOMOTO, Kenta YOSHII
  • Publication number: 20160296912
    Abstract: An object of the present invention is to provide an exhaust gas purification catalyst for purifying exhaust gas, in particular, fine composite-metal particles contained therein, and a method for producing the same. The exhaust gas purification catalyst according to the present invention includes fine composite-metal particles containing Rh and Pd, wherein, when the fine composite-metal particles in the exhaust gas purification catalyst are analyzed by STEM-EDX, the average ratio of the amount of Pd with respect to the total amount of Rh and Pd in the fine composite-metal particles is 1.7 atomic % or more and 24.8 atomic % or less.
    Type: Application
    Filed: March 31, 2016
    Publication date: October 13, 2016
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shogo SHIRAKAWA, Yui KAMADA, Tatsuya MIYAZAKI
  • Patent number: D801049
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: October 31, 2017
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Junichi Mutoh, Satoshi Tanigawa, Yukio Uno, Takayuki Okawa, Tatsuya Miyazaki, Tohru Nakamura