Patents by Inventor Midori Masaki

Midori Masaki 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 preparation of glycidyl sulfonate derivative
    Patent number: 5965753
    Abstract: A process for preparation of a glycidyl sulfonate derivative with high purity and in high yield, which is characterized in reacting glycidol which is prepared from treating 3-chloro-1,2-propanediol in an aqueous solvent in the basic condition, without isolating the resulting glycidol with a sulfonyl halide in a two phase solvent consisting of an organic solvent and water in the presence of an inorganic base and a tertiary amine or a pyridine derivative.
    Type: Grant
    Filed: July 20, 1998
    Date of Patent: October 12, 1999
    Assignee: Daiso Co., LTd.
    Inventors: Midori Masaki, Yoshiro Furukawa, Keishi Takenaka