Patents by Inventor Minekazu Koga

Minekazu Koga 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).

  • Production method of ketomalonic acid compound
    Patent number: 9499469
    Abstract: Provided is a method for producing an industrially useful ketomalonic acid compound such as ketomalinic acid diesters, or a hydrate thereof, by a method more favorable from an economic and environmental standpoint and from a safety standpoint. The present invention relates to a method involving reacting a malonic acid compound represented by general formula (1) (in the formula, The each Rs indicate an alkyl group, a cycloalkyl group, etc.) with chlorine dioxide to produce a ketomalonic acid compound represented by the general formula (2) (in the formula, R has the same meaning as above), or a hydrate thereof.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: November 22, 2016
    Assignee: IHARA CHEMICAL INDUSTRY CO., LTD.
    Inventors: Shinki Tani, Minekazu Koga, Izumi Matsumoto
  • PRODUCTION METHOD OF KETOMALONIC ACID COMPOUND
    Publication number: 20160194268
    Abstract: Provided is a method for producing an industrially useful ketomalonic acid compound such as ketomalinic acid diesters, or a hydrate thereof, by a method more favorable from an economic and environmental standpoint and from a safety standpoint. The present invention relates to a method involving reacting a malonic acid compound represented by general formula (1) (in the formula, The each Rs indicate an alkyl group, a cycloalkyl group, etc.) with chlorine dioxide to produce a ketomalonic acid compound represented by the general formula (2) (in the formula, R has the same meaning as above), or a hydrate thereof.
    Type: Application
    Filed: July 3, 2014
    Publication date: July 7, 2016
    Applicant: IHARA CHEMICAL INDUSTRY CO., LTD.
    Inventors: Shinki TAni, Minekazu Koga, Izumi Matsumoto