Patents by Inventor Tadashige Ishida

Tadashige Ishida 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: 3953660
    Abstract: This invention relates to a surface protective film for a plastic article containing a plasticizer use comprising an adhesive layer of 10-100 .mu. in thickness consisting of 100 parts by weight of a polymer or copolymer having ethylenic linkage and 1-100 parts by weight of an olefin homopolymer or copolymer or a mixture thereof containing chlorine atoms and having a means solubility parameter between 8.0-11.0 coated on a surface of a basic plastic film of 10-100 .mu. in thickness.The said film possesses a suitable strength for peeling off the said surface protective film from the said article to be covered in a hot temperature of more than 40.degree.C as well as in a low temperature of less than 0.degree.C.
    Type: Grant
    Filed: March 29, 1974
    Date of Patent: April 27, 1976
    Assignee: Tamapoly Co., Ltd.
    Inventor: Tadashige Ishida