TREA

Hajime Hasegawa

Follow

Person

  • Chigasaki, JP
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Process for producing an electrographics roller
    • Patent number 6,105,249
    • Issue date Aug 22, 2000
    • Bridgestone Corporation
    • Yukio Ando
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Preparation of flexible polyurethane foam
    • Patent number 6,045,741
    • Issue date Apr 4, 2000
    • Bridgestone Corporation
    • Hideya Kinoshita
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Roller for electrophotographic apparatus
    • Patent number 5,893,821
    • Issue date Apr 13, 1999
    • Bridgestone Corporation
    • Yukio Ando
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Sealing material and method
    • Patent number 5,496,868
    • Issue date Mar 5, 1996
    • Bridgestone Corporation
    • Hajime Hasegawa
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Process for producing flexible polyurethane foam
    • Patent number 5,093,378
    • Issue date Mar 3, 1992
    • Bridgestone Corporation
    • Takumi Ishiwaka
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Process for producing polyurethane foam
    • Patent number 4,923,904
    • Issue date May 8, 1990
    • Bridgestone Corporation
    • Hajime Hasegawa
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Thermochromic polyurethane foam
    • Patent number 4,666,949
    • Issue date May 19, 1987
    • Matsui Shikiso Chemical Co., Ltd.
    • Goro Shimizu
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...