Patents by Inventor Seiji Honma

Seiji Honma 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
  • Transparent or semi-transparent cosmetic composition
    Patent number: 5294444
    Abstract: A cosmetic composition is provided comprising (A) 0.05-30% by weight of an amphiphatic lipid, (B) 0.05-30% by weight of a nonionic surfactant, (C) 1-50% by weight, based on (b), of an ionic surfactant, and (D) 40-99% by weight of an aqueous medium, wherein said composition is transparent or semi-transparent, and wherein the ratio of (A)/[(B)+(C)] is 0.2-10, which is beautifully transparent or semi-transparent, and in which the amphiphatic lipids are stably microdispersed.
    Type: Grant
    Filed: November 25, 1991
    Date of Patent: March 15, 1994
    Assignee: Kao Corporation
    Inventors: Mami Nakamura, Seiji Honma