Patents by Inventor Asao Hosoda

Asao Hosoda 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).

  • Thermally stable ferulic acid derivatives
    Patent number: 6890520
    Abstract: A ferulic acid derivative represented by the general formula (1); a process for preparing a ferulic acid derivative represented by the general formula (1), comprising reacting ferulic acid or an ester thereof represented by the general formula (2) with a dihalomethane represented by the general formula CH2X2, wherein X is a halogen atom; and an ultraviolet light-absorbent composition comprising the ferulic acid derivative. Since the ultraviolet light absorbent composition is not only excellent in the ultraviolet light absorption but also very stable against heat, the ultraviolet light absorbent composition can be suitably used as cosmetics which especially require long-term stability.
    Type: Grant
    Filed: February 5, 2003
    Date of Patent: May 10, 2005
    Assignees: Wakayama Prefecture, Tsuno Food Industrial Co., Ltd.
    Inventors: Hisaji Taniguchi, Eisaku Nomura, Asao Hosoda, Takuo Tsuno, Yuko Maruta
  • Thermally stable ferulic acid derivatives
    Publication number: 20040152912
    Abstract: A ferulic acid derivative represented by the general formula (1); a process for preparing a ferulic acid derivative represented by the general formula (1), comprising reacting ferulic acid or an ester thereof represented by the general formula (2) with a dihalomethane represented by the general formula CH2X2, wherein X is a halogen atom; and an ultraviolet light-absorbent composition comprising the ferulic acid derivative. Since the ultraviolet light absorbent composition is not only excellent in the ultraviolet light absorption but also very stable against heat, the ultraviolet light absorbent composition can be suitably used as cosmetics which especially require long-term stability.
    Type: Application
    Filed: February 5, 2003
    Publication date: August 5, 2004
    Inventors: Hisaji Taniguchi, Eisaku Nomura, Asao Hosoda, Takuo Tsuno, Yuko Maruta