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Yasushi Hirata

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  • Higashimurayama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Oxidation catalyst for bleaching, and bleaching composition using t...
    • Patent number 8,993,504
    • Issue date Mar 31, 2015
    • LION Corporation
    • Takayasu Kubozono
    • C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
  • Information Patent Grant

    Natural rubber treated with viscosity stabilizers and production th...
    • Patent number 5,710,200
    • Issue date Jan 20, 1998
    • Bridgestone Corporation
    • Hirotoshi Toratani
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Natural rubber containing viscosity stabilizer and method for manuf...
    • Patent number 5,693,695
    • Issue date Dec 2, 1997
    • Bridgestone Corporation
    • Hirotoshi Toratani
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Low heat generation rubber compositions containing thiadiazole comp...
    • Patent number 5,151,468
    • Issue date Sep 29, 1992
    • Bridgestone Corporation
    • Ichiro Nakajima
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Rubber composition
    • Patent number 5,140,055
    • Issue date Aug 18, 1992
    • Bridgestone Corporation
    • Yasushi Hirata
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Rubber compositions having improved reinforcing properties and low...
    • Patent number 4,690,965
    • Issue date Sep 1, 1987
    • Bridgestone Corporation
    • Yasushi Hirata
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Rubber composition
    • Patent number 4,675,355
    • Issue date Jun 23, 1987
    • Bridgestone Corporation
    • Yasushi Hirata
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Rubber composition
    • Patent number 4,665,119
    • Issue date May 12, 1987
    • Bridgestone Corporation
    • Yasushi Hirata
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Pneumatic radial tire
    • Patent number 4,572,263
    • Issue date Feb 25, 1986
    • Bridgestone Corporation
    • Masaki Ogawa
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Polybutadiene rubber compositions having improved green strength
    • Patent number 4,533,711
    • Issue date Aug 6, 1985
    • Bridgestone Tire Company Limited
    • Yasumasa Takeuchi
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Rubber compositions
    • Patent number 4,515,922
    • Issue date May 7, 1985
    • Bridgestone Tire Company Limited
    • Mitsuhiko Sakakibara
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Rubber compositions having improved crack growth resistance
    • Patent number 4,499,228
    • Issue date Feb 12, 1985
    • Bridgestone Tire Company Limited
    • Masaki Ogawa
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Pneumatic radial tires
    • Patent number 4,481,995
    • Issue date Nov 13, 1984
    • Bridgestone Tire Co., Ltd.
    • Masaki Ogawa
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Rubber compositions comprisining an alkadiene sulfone an carbon black
    • Patent number 4,481,327
    • Issue date Nov 6, 1984
    • Bridgestone Tire Company, Ltd.
    • Masaki Ogawa
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Polybutadiene rubber compositions
    • Patent number 4,468,496
    • Issue date Aug 28, 1984
    • Bridgestone Tire Co., Ltd.
    • Yasumasa Takeuchi
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Polyisoprene rubber compositions
    • Patent number 4,433,107
    • Issue date Feb 21, 1984
    • Bridgestone Tire Co., Ltd.
    • Yasumasa Takeuchi
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Pneumatic tires
    • Patent number 4,396,051
    • Issue date Aug 2, 1983
    • Bridgestone Tire Co., Ltd.
    • Masaki Ogawa
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Organic micro-fiber reinforced rubber compositions
    • Patent number 4,328,133
    • Issue date May 4, 1982
    • Bridgestone Tire Company Limited
    • Masaki Ogawa
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents