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Masayoshi Sekiya

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Copolymer latex
    • Patent number 5,286,783
    • Issue date Feb 15, 1994
    • Nippon Zeon Co., Ltd.
    • Hiroshi Hisaki
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Emulsion having dye developing property
    • Patent number 5,191,010
    • Issue date Mar 2, 1993
    • Nippon Zeon Co., Ltd.
    • Katsumi Inagaki
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Hydrophilic fine gel particles and process for production thereof
    • Patent number 5,043,407
    • Issue date Aug 27, 1991
    • Nippon Zeon Co., Ltd.
    • Jun Hasegawa
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Hydrophilic fine gel particles and process for production thereof
    • Patent number 4,988,568
    • Issue date Jan 29, 1991
    • Nippon Zeon Co., Ltd.
    • Jun Hasegawa
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Process for producing copolymer latex
    • Patent number 4,831,078
    • Issue date May 16, 1989
    • Nippon Zeon Co., Ltd.
    • Kohichi Kuhara
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Copolymer latex
    • Patent number 4,613,633
    • Issue date Sep 23, 1986
    • Nippon Zeon Co., Ltd.
    • Masayoshi Sekiya
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Copolymer latex
    • Patent number 4,613,650
    • Issue date Sep 23, 1986
    • Nippon Zeon Co., Ltd.
    • Masayoshi Sekiya
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Subbing process for photographic light-sensitive materials
    • Patent number 4,423,089
    • Issue date Dec 27, 1983
    • Fuji Photo Film Co., Ltd.
    • Masayoshi Sekiya
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Paper coating composition
    • Patent number 4,278,583
    • Issue date Jul 14, 1981
    • Nippon Zeon Co. Ltd.
    • Masayoshi Sekiya
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Process for forming a subbing layer on a plastic support
    • Patent number 4,265,946
    • Issue date May 5, 1981
    • Fuji Photo Film Co., Ltd.
    • Masao Yabe
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY