Patents by Inventor Norio Miyagawa

Norio Miyagawa 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: 4148967
    Abstract: A metallized plastic molded product is provided which comprises a plastic substrate, a base coat layer, a dry metallic film layer, an inter coat layer and a top coat layer, characterized in that said inter coat layer is a cured ultraviolet curing composition comprising 5-80% by weight of a resin containing 5-50% by weight of repeating unit represented by the formula I: ##STR1## wherein R.sub.1 is H or CH.sub.3, R.sub.2 is H or C.sub.1-8 alkyl, and R.sub.3 is C.sub.1-8 alkyl, and having a molecular weight of 4,000-200,000 and 20-95% by weight of a compound having polymerizable unsaturated groups and said top coat layer is a cured ultraviolet curing composition comprising 40-90% by weight of a urethane modified polyvinyl compound and 10-60% by weight of a polyvinyl compound having a molecular weight of 170-1,000 and having at least two polymerizable unsaturated groups in one molecule. A method for producing the product is also provided.
    Type: Grant
    Filed: April 12, 1978
    Date of Patent: April 10, 1979
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Mitsuo Satoh, Norio Miyagawa, Juichi Kobayashi
  • Patent number: 4112190
    Abstract: A metallized plastic molding comprises a plastic substrate, a primer layer having a gel percentage of at least 80% and a swelling degree of 20% or less deposited on said substrate and a metallic film deposited on the primer layer. The metallized plastic molding is prepared by coating a plastic substrate with a primer forming material containing at least one compound having a molecular weight of 150 - 2000 and containing at least two polymerizable unsaturated groups in one molecule, curing the primer forming material so that it has a gel percentage of at least 80% and a swelling degree of 20% or less to form a primer layer and then depositing a metallic film layer by a dry type method on the primer layer.
    Type: Grant
    Filed: June 16, 1977
    Date of Patent: September 5, 1978
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Mitsuo Sato, Norio Miyagawa, Juichi Kobayashi
  • Patent number: 4016306
    Abstract: An acrylic resin composition containing a thermoplastic acrylic polymer in combination with a specific ethylenically unsaturated diacrylate such as diacrylate of hydroxypivalyl hydroxypivalate is found to be cured by irradiation of active rays in an aqueous medium in the presence of a photo-sensitizer to form a cured film with excellent properties. This composition is especially suitable for coating a plastic tile.
    Type: Grant
    Filed: July 3, 1975
    Date of Patent: April 5, 1977
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Norio Miyagawa, Mitsuo Sato, Juichi Kobayashi, Takashi Kobayashi