Patents by Inventor Kiyoshi Aimono

Kiyoshi Aimono 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 the preparation of phosphoric monoester
    Patent number: 5883280
    Abstract: An organic hydroxyl compound is reacted with polyphosphoric acid under such conditions that the ratio, as defined by formula (1), has a value exceeding 3.2; and phosphorus pentaoxide is added to the reaction product thus obtained in such an amount that the ratio, as defined by formula (1), has a value in the range of from 2.8 to 3.2: ##EQU1## If necessary, the obtained reaction product is deodorized by the removal of the organic hydroxyl compound unreacted therefrom. The process does not give any product of high-viscous gel and therefore enables the industrially easy manufacture of a phosphoric monoester having an extremely high purity, a lowered orthophosphoric acid content, and a good odor.
    Type: Grant
    Filed: March 20, 1997
    Date of Patent: March 16, 1999
    Assignee: Kao Corporation
    Inventors: Shinji Tsuyutani, Kengo Shibata, Kiyoshi Aimono
  • 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
  • Process for the production of alkyl glycoside or aqueous solution thereof
    Patent number: 5079350
    Abstract: A process for the production of an alkyl glycoside or an aqueous solution thereof is disclosed, comprising the steps of (1) reacting a sugar with alcohol to obtain an alkyl glycoside reaction product containing unreacted alcohol, (2) establishing a moving liquid film of the alkyl glycoside reaction product and (3) contacting the moving liquid film with steam or an inert gas at a temperature of from 50.degree. to 200.degree. C. The alkyl glycoside or aqueous solution thus obtained contains little unreacted alcohol and is excellent in hue and odor.
    Type: Grant
    Filed: March 29, 1990
    Date of Patent: January 7, 1992
    Assignee: Kao Corporation
    Inventors: Tadaaki Fujita, Kiyoshi Aimono, Kunizo Hashiba, Koichi Ohori
  • Process for producing phosphoric ester salt of high purity
    Patent number: 4739092
    Abstract: A phosphoric ester salt of high purity is produced by converting a phosphoric ester in a mixture containing the phosphoric ester and one or more nonionic compounds into a phosphoric ester salt by using a basic compound, and extracting nonionic compounds from the above mixture by using a mixed solvent of aliphatic hydrocarbons or cycloaliphatic hydrocarbons, a lower alcohol and water.The above method is applicable to a non-crystalline phosphoric ester from which nonionic compounds cannot be removed by recystallization.The above obtained phosphoric ester salt of high purity can be used as it is or after condensation.
    Type: Grant
    Filed: November 19, 1986
    Date of Patent: April 19, 1988
    Assignee: Kao Corporation
    Inventors: Toshio Nozaki, Tomihiro Kurosaki, Junya Wakatsuki, Kiyoshi Aimono