Patents by Inventor Kazuo Okuse

Kazuo Okuse 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).

  • Method of making cellular polymeric shaped articles having relief patterns
    Patent number: 3949028
    Abstract: A method of making cellular or expanded polymeric shaped articles having relief patterns which comprises forming a thermoplastic polymer composition containing azodicarbonamide as a chemical blowing agent into a desired shape, irradiating a surface of the shaped body thus obtained with light of wave lengths of 100 to 500 m.mu. through a printed pattern applied thereto or a screen which locally shades light rays, such as a stencil or a positive or negative transparency, superposed thereon and heating the shaped body to effect foaming or expansion thereof.
    Type: Grant
    Filed: October 23, 1974
    Date of Patent: April 6, 1976
    Assignee: Eiwa Chemical Industrial Co., Ltd.
    Inventors: Shinji Murakami, Kazuo Okuse