Patents by Inventor Makoto Amau

Makoto Amau 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).

  • Process for production of alkyl glycoside excellent in hue
    Patent number: 5104981
    Abstract: A process is disclosed for the production of an alkyl glycoside excellent in hue, which comprises (1) reacting a sugar with alcohol to obtain an alkyl glycoside reaction product containing an unreacted higher alcohol, (2) reacting the resulting product with a metal/hydrogen complex represented by formula (I)M(BH.sub.4).sub.x (I)whereinM is an alkali metal, Ca, Zn, or (CH.sub.3).sub.4 N; and x is 1 when M is an alkali metal or (CH.sub.3).sub.4 N and x is 2 when M is Ca or Zn;(3) separating the resulting reaction mixture into the alkyl glycoside and the unreacted higher alcohol, and (4) decomposing the remaining metal/hydrogen complex with an acid.
    Type: Grant
    Filed: March 16, 1990
    Date of Patent: April 14, 1992
    Assignee: Kao Corporation
    Inventors: Akira Yamamuro, Makoto Amau, Tadaaki Fujita, Kiyoshi Aimono, Akio Kimura