Patents by Inventor Kazuya Ikawa

Kazuya Ikawa 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).

  • Dermatological patch and process for producing thereof
    Patent number: 6267983
    Abstract: A transdermal patch which comprises: a substrate sheet comprises a composite film formed of a resin composition comprising 100 parts by weight of a polyvinyl chloride-polyurethane composite and 2-10 parts by weight of a styrene-ethylene-butylene-styrene copolymer, a first adhesive layer on the one side of the composite film, and a polyalkylene terephthalate film adhered to the one side of the composite film by means of the first adhesive layer, a primer layer which comprises a saturated polyester resin and is formed on the surface of the polyalkylene terephthalate film; and a second adhesive layer comprising a styrene-diene-styrene block copolymer containing a pharmaceutical agent layered on the primer layer.
    Type: Grant
    Filed: August 11, 1999
    Date of Patent: July 31, 2001
    Assignees: Bando Chemical Industries, Ltd., Hisamitsu Pharmaceutical Co., Ltd.
    Inventors: Kimihiro Fujii, Kazuo Tanaka, Kazuya Ikawa, Yasuhiro Ikeura, Shinji Yamasoto