Patents by Inventor Masataka Hiro

Masataka Hiro 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: 20200238768
    Abstract: A pneumatic tire 1 comprises a carcass 6 extending between bead cores of bead portions via a tread portion 2 and sidewall portions, and a belt layer 7 arranged on an outer side in a tire radial direction of the carcass 6 and inside of the tread portion 2. The pneumatic tire 1 further comprises a damping rubber body 30 arranged between the carcass 6 and the belt layer 7, and a noise damper 20 arranged on an inner cavity surface of the tread portion 2. A width W1 in a tire axial direction of the damping rubber body 30 is in a range of from 60% to 130% of a width W2 in the tire axial direction of the belt layer 7, and a water absorption rate of the noise damper 20 is in a range of from 10% to 25%.
    Type: Application
    Filed: April 16, 2020
    Publication date: July 30, 2020
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventors: Masako NAKATANI, Takahiro KAWACHI, Ayuko YAMADA, Takuya HORIGUCHI, Masataka HIRO, Takayuki NAGASE, Hiroshi ITO, Fumiya KATO, Subaru TOYA
  • Publication number: 20190299722
    Abstract: A pneumatic tire 1 comprises a carcass 6 extending between bead cores of bead portions via a tread portion 2 and sidewall portions, and a belt layer 7 arranged on an outer side in a tire radial direction of the carcass 6 and inside of the tread portion 2. The pneumatic tire 1 further comprises a damping rubber body 30 arranged between the carcass 6 and the belt layer 7, and a noise damper 20 arranged on an inner cavity surface of the tread portion 2. A width W1 in a tire axial direction of the damping rubber body 30 is in a range of from 60% to 130% of a width W2 in the tire axial direction of the belt layer 7, and a water absorption rate of the noise damper 20 is in a range of from 10% to 25%.
    Type: Application
    Filed: November 27, 2017
    Publication date: October 3, 2019
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventors: Masako NAKATANI, Takahiro KAWACHI, Ayuko YAMADA, Takuya HORIGUCHI, Masataka HIRO, Takayuki NAGASE, Hiroshi ITO, Fumiya KATO, Subaru TOYA
  • Publication number: 20190248182
    Abstract: A pneumatic tire 1 comprises a carcass 6 extending between a pair of bead portions 4, 4, an inner liner 10 arranged on an inner side in a tire radial direction of the carcass 6 and forming a tire inner cavity surface 16, and a noise damper 20 made of a porous material and fixed to the tire inner cavity surface 16 of the inner liner 10. A glass transition temperature Tg1 of the noise damper 20 is lower than a glass transition temperature Tg2 of the inner liner 10.
    Type: Application
    Filed: April 25, 2019
    Publication date: August 15, 2019
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventors: Masako NAKATANI, Takahiro KAWACHI, Ayuko YAMADA, Masataka HIRO, Satomi YAMAUCHI, Shuichiro ONO, Tetsuya MAEKAWA, Natsuki MAEKAWA, Subaru TOYA
  • Publication number: 20190185639
    Abstract: The present invention provides a rubber composition for tires which is excellent in performance on ice, and a pneumatic tire formed from the rubber composition. Included is a rubber composition for tires, containing: a rubber component; a farnesene polymer; and a carbon black having a cetyltrimethylammonium bromide adsorption specific surface area of 140 m2/g or more and a ratio (CTAB/IA) of the cetyltrimethylammonium bromide adsorption specific surface area (CTAB) to an iodine adsorption number (IA) of 1.10 or higher.
    Type: Application
    Filed: December 12, 2018
    Publication date: June 20, 2019
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Yuki KASAI, Masataka HIRO, Noriyuki NISHI
  • Publication number: 20190030954
    Abstract: [ solution] A pneumatic tire 1 comprises a carcass 6 extending between a pair of bead portions 4, 4, an inner liner 10 arranged on an inner side in a tire radial direction of the carcass 6 and forming a tire inner cavity surface 16, and a noise damper 20 made of a porous material and fixed to the tire inner cavity surface 16 of the inner liner 10. A glass transition temperature Tg1 of the noise damper 20 is lower than a glass transition temperature Tg2 of the inner liner 10.
    Type: Application
    Filed: December 6, 2017
    Publication date: January 31, 2019
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventors: Masako NAKATANI, Takahiro KAWACHI, Ayuko YAMADA, Masataka HIRO, Satomi YAMAUCHI, Shuichiro ONO, Tetsuya MAEKAWA, Natsuki MAEKAWA, Subaru TOYA
  • Patent number: 8163821
    Abstract: The present invention provides: a rubber composition for a tire that achieves both good fuel economy and abrasion resistance, and also achieves good degradation resistance and processability; and a heavy-load tire having a tread produced therefrom. The present invention relates to a rubber composition for a tire, comprising a rubber component that contains a modified natural rubber having a phosphorus content of 200 ppm or less and a butadiene rubber, wherein the amount of the modified natural rubber is 60 to 95% by mass and the amount of the butadiene rubber is 5 to 40% by mass, based on 100% by mass of the rubber component.
    Type: Grant
    Filed: March 16, 2011
    Date of Patent: April 24, 2012
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventor: Masataka Hiro
  • Publication number: 20110230613
    Abstract: The present invention provides: a rubber composition for a tire that achieves both good fuel economy and abrasion resistance, and also achieves good degradation resistance and processability; and a heavy-load tire having a tread produced therefrom. The present invention relates to a rubber composition for a tire, comprising a rubber component that contains a modified natural rubber having a phosphorus content of 200 ppm or less and a butadiene rubber, wherein the amount of the modified natural rubber is 60 to 95% by mass and the amount of the butadiene rubber is 5 to 40% by mass, based on 100% by mass of the rubber component.
    Type: Application
    Filed: March 16, 2011
    Publication date: September 22, 2011
    Inventor: Masataka HIRO
  • Publication number: 20100168312
    Abstract: Abrasion resistance can be improved without impairing tip cut resistance by using polybutadiene comprising specific syndiotactic-1,2-polybutadiene in a tread rubber. Namely, the present invention provides a rubber composition for a tread which comprises a rubber component comprising 10 to 30% by weight of a butadiene rubber in which syndiotactic-1,2-polybutadiene having an average primary particle diameter of not more than 100 nm is dispersed in the butadiene rubber.
    Type: Application
    Filed: December 25, 2006
    Publication date: July 1, 2010
    Inventors: Hirokazu Ishida, Masataka Hiro, Takashi Wada
  • Patent number: D485802
    Type: Grant
    Filed: April 1, 2003
    Date of Patent: January 27, 2004
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Masataka Hiro