Patents by Inventor Yoji Jokura

Yoji Jokura 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).

  • Skin cosmetic containing ceramides of pseudoceramides and dicarboxylic acids and dicarboxylic acid salts
    Patent number: 5641495
    Abstract: A skin cosmetic causing little irritation and having an excellent moisturizing effect which contains the following components (A), (B) and (C):(A) a ceramide or a pseudoceramide represented by the following formula (1) or (2): ##STR1## wherein R.sup.1 and R.sup.2 represent each a C.sub.9 to C.sub.39 hydrocarbon group; and R.sup.3 and R.sup.4 represent each H, a phosphate residue, a sulfate residue, etc.;(B) a dicarboxylic acid; and(C) a salt of a dicarboxylic acid.
    Type: Grant
    Filed: October 17, 1995
    Date of Patent: June 24, 1997
    Assignee: Kao Corporation
    Inventors: Yoji Jokura, Toshio Uesaka, Seiji Honma, Yuri Kato, Koichi Ishida