Patents by Inventor Yoshihide Fukabori

Yoshihide Fukabori 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: 3981943
    Abstract: One shot mouldable and curable homogeneous rubber composition consisting mainly of polyisoprene rubber and a monomer mixture composed of divinylbenzene and .alpha.-methylstyrene in specifically limited weight ratios of the rubber/the monomer mixture and of divinylbenzene/.alpha.-methylstyrene and containing small amounts of organic peroxide and at least one of amine compound and phenol compound. The cured product of the rubber composition has high Young's modulus, tear energy and tensile strength retention. More improved cured rubbers having these physical properties well balanced in a high level can be easily obtained by additionally adding a small amount of sulfur or p-quinonedioxime to the above rubber composition.
    Type: Grant
    Filed: April 15, 1974
    Date of Patent: September 21, 1976
    Assignee: Bridgestone Fire Company Limited
    Inventors: Ryota Fujio, Nobuyuki Kataoka, Yoshihide Fukabori, Shiro Anzai
  • Patent number: 3931097
    Abstract: An ethylene-propylene copolymer rubber composition having a high Young's modulus, which comprises 100 parts by weight of a mixture of the following ingredients (a) and (b) in a weight ratio of ingredient (a)/ingredient (b) of 67/33-50/50, said ingredient (a) being an ethylene-propylene copolymer having a Mooney viscosity of at least 75, said ingredient (b) being divinylbenzene, (c) 0.3-2.5 parts by weight of an organic peroxide, and (d) 0.01-0.25 part by weight of sulfur, and the homogeneous rubber composition cured at having a Young's modulus of 200-500 Kg/cm.sup.2, a tensile strength of at least 200 Kg/cm.sup.2, an elongation of at least 300%, a tear energy of at least 10 Kg/cm and retentions of Young's modulus and tensile strength at of at least 50%.
    Type: Grant
    Filed: December 4, 1974
    Date of Patent: January 6, 1976
    Assignee: Bridgestone Tire Company Limited
    Inventors: Ryota Fujio, Nobuyuki Kataoka, Motozumi Kitayama, Yoshihide Fukabori, Shiro Anzai