Patents by Inventor Ryuichi Hosikawa

Ryuichi Hosikawa 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).

  • Reversibly variable color patterning composition for synthetic resin articles
    Patent number: 5431697
    Abstract: Disclosed are a reversibly variable color pattering composition for synthetic resin articles which includes a granulated material containing (i) an olefin polymer and (ii) at least one reversibly variable color material selected from the group consisting of thermochromic materials and photochromic materials, the granulated material having been subjected to crosslinking reaction following granulation; a method of producing the same; and a shaped article having a reversibly variable color pattern as molded from a molding composition including a synthetic resin and the color patterning composition.
    Type: Grant
    Filed: June 8, 1994
    Date of Patent: July 11, 1995
    Assignee: Matsui Shikiso Chemical Co., Ltd.
    Inventors: Masayasu Kamata, Hiromi Suno, Toshihisa Maeda, Ryuichi Hosikawa