Patents by Inventor Keinosuke Takeuchi

Keinosuke Takeuchi 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).

  • Fragrance releasing sheet article and method of making same
    Patent number: 4590111
    Abstract: A fragrance releasing sheet article comprising a resin member with patterns and/or colors thereon and a fragrance releasing member comprising a resin and perfume, the pattern member and the fragrance releasing member being integrally constituted; and a method of making such sheet article.
    Type: Grant
    Filed: October 17, 1983
    Date of Patent: May 20, 1986
    Assignee: Hakugen, Ltd.
    Inventor: Keinosuke Takeuchi
  • Fragrance releasing articles
    Patent number: 4476171
    Abstract: A fragrance releasing article comprising a frame body with openings into which a fragrance releasing base comprising a resin, perfume and coloring agent is charged; or a fragrance releasing article comprising a resin film with patterns thereon, a frame body and a fragrance releasing base comprising a resin, perfume and, optionally, coloring agent, the film, frame and base being integrally constituted; and a method for producing such articles.
    Type: Grant
    Filed: February 18, 1983
    Date of Patent: October 9, 1984
    Assignee: Hakugen Co., Ltd.
    Inventor: Keinosuke Takeuchi