Patents by Inventor Seiji Asaoka

Seiji Asaoka 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).

  • Cosmetic resin composition
    Patent number: 6884853
    Abstract: To provide a cosmetic resin composition for preparation of a hair fixative having all properties of stiffness, shampoo removability, feel, gloss, combability and anti-flaking property. A cosmetic resin composition consisting essentially of an amphoteric urethane resin having a carboxyl group and a tertiary amino group in one molecule thereof, the amphoteric urethane resin having polysiloxane linkage in its structure.
    Type: Grant
    Filed: April 13, 2000
    Date of Patent: April 26, 2005
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Seiji Asaoka, Takahiro Sakurai, Katsuya Koyama, Toshitaka Tsuzuki, Tomohiro Hashimoto
  • Cosmetic compositions containing amphoteric polyurethanes
    Patent number: 6737069
    Abstract: The present invention provides a cosmetic which is superior in both characteristics of feel and spread at the time of application. The cosmetic is a cosmetic comprising an amphoteric urethane resin having carboxyl group(s) and tertiary amino group(s) in a molecule, and a silicone polymer.
    Type: Grant
    Filed: February 6, 2002
    Date of Patent: May 18, 2004
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Seiji Asaoka, Katsuya Koyama, Toshitaka Tsuzuki, Tomohiro Hashimoto
  • Cosmetic resin composition and cosmetic using the same
    Patent number: 6692729
    Abstract: A cosmetic resin composition consisting essentially of an amphoteric urethane resin having a carboxyl group and a tertiary amino group in one molecule there of, the amphoteric urethane resin having a structural unit derived from an ethylene oxide in its structure.
    Type: Grant
    Filed: May 29, 2002
    Date of Patent: February 17, 2004
    Assignee: National Startch and Chemical Investment Holding Corporation
    Inventors: Seiji Asaoka, Takahiro Sakurai, Katsuya Koyama, Toshitaka Tsuzuki, Tomohiro Hashimoto
  • Method for manufacturing amphoteric urethane resin and amphoteric urethane resin and resin composition obtained therewith
    Patent number: 6646092
    Abstract: The invention presents a method for manufacturing an amphoteric urethane resin, improving at least one of the performance of cosmetics including this amphoteric urethane resin and the storage stability of the urethane resin.
    Type: Grant
    Filed: June 26, 2002
    Date of Patent: November 11, 2003
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Tomohiro Hashimoto, Takeshi Baba, Seiji Asaoka, Tetsuo Sakurai
  • Method for manufacturing amphoteric urethane resin and amphoteric urethane resin and resin composition obtained therewith
    Publication number: 20030088041
    Abstract: The invention presents a method for manufacturing an amphoteric urethane resin, improving at least one of the performance of cosmetics including this amphoteric urethane resin and the storage stability of the urethane resin.
    Type: Application
    Filed: June 26, 2002
    Publication date: May 8, 2003
    Inventors: Tomohiro Hashimoto, Takeshi Baba, Seiji Asaoka, Tetsuo Sakurai