Patents by Inventor Norio Nishigawa

Norio Nishigawa 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).

  • Metal salts of monoalkyl phosphates, preparation thereof, and cosmetic compositions comprising same
    Patent number: 4804533
    Abstract: Metal salts of monoalkyl phosphates of the following formula ##STR1## in which each R represents a saturated or unsaturated, linear or branched hydrocarbon group having from 8 to 32 carbon atoms, and M represents an alkaline earth metal or divalent transition metal.The metal salts are particularly suitable as cosmetic powders, fillers for resins, and lubricants, parting agents and pigment dispersants for polymeric compounds. When used as cosmetic powders, the metal salts improve spreadability, moistness, smoothness, adherence, transparency and covering power of cosmetics.Preparation process of the metal salts is also disclosed.
    Type: Grant
    Filed: April 30, 1987
    Date of Patent: February 14, 1989
    Assignee: Kao Corporation
    Inventors: Takashi Imamura, Norio Nishigawa, Tomihiro Kurosaki, Junichi Fukasawa, Haruya Kato