Patents by Inventor Toshimitu Okuno

Toshimitu Okuno 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).

  • Composition for forming a release coating layer
    Patent number: 4362833
    Abstract: An aqueous composition for forming a release coating layer on a substrate, comprising 100 parts by weight (solids basis) of a mixture of aqueous components of polysiloxanes and from about 20 to 100 parts by weight (solids basis) of an aqueous resin having film-forming ability, wherein the non-volatile content is from about 1 to 60% by weight. The aqueous composition is applied onto a non-permeable substrate to provide a substrate having thereon a release coating layer, which is suitable for use in the production, for example, of a surface protective sheet or tape, and a pressure-sensitive sheet or tape.
    Type: Grant
    Filed: May 18, 1981
    Date of Patent: December 7, 1982
    Assignee: Nitto Electric Industrial Co., Ltd.
    Inventors: Isao Mune, Kihachi Suzuki, Toshimitu Okuno