Patents by Inventor Kiichiron Haraguchi

Kiichiron Haraguchi 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).

  • Coat masking tape base material, and coat masking tape
    Patent number: 5998018
    Abstract: A coat masking tape base material and a coat masking tape, having superior follow-up properties, promising sharp paint lines and being free of "left-on" when peeled, in which a polyolefin resin film having a modulus of elasticity of from 15 to 55 kgf/mm.sup.2 has been subjected to modification treatment on its both sides, and a pressure-sensitive adhesive layer maintaining a thermoplastic saturated block copolymer, a thermoplastic unsaturated block copolymer and a tackifier or a cross-linked acrylic pressure-sensitive adhesive layer is formed on the film having been subjected to modification treatment.
    Type: Grant
    Filed: April 6, 1998
    Date of Patent: December 7, 1999
    Assignee: Sony Chemicals Corp.
    Inventors: Masao Murakami, Kiichiron Haraguchi