Patents by Inventor Noriko Yoneta

Noriko Yoneta 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).

  • Method for producing 2-alkyl-4-isothiazoline-3-one
    Publication number: 20040186152
    Abstract: Chlorinating agent is reacted with a compound represented by formula (I) 1
    Type: Application
    Filed: March 26, 2004
    Publication date: September 23, 2004
    Applicant: Chemicrea Inc.
    Inventors: Masayuki Morita, Guo-bin Liu, Noriko Yoneta
  • Method for producing 2-alkyl-4-isothiazoline-3-one
    Patent number: 6740759
    Abstract: Chlorinating agent is reacted with a compound represented by formula (I) (wherein R represents C1 to C8 alkyl groups or aralkyl groups) or a compound represented by formula (II) in a solvent in which hydrogen chloride is insoluble or has low solubility.
    Type: Grant
    Filed: September 20, 2000
    Date of Patent: May 25, 2004
    Assignee: Chemicrea, Inc.
    Inventors: Masayuki Morita, Guo-bin Liu, Noriko Yoneta
  • Method of manufacturing 1-indanone
    Patent number: 6127579
    Abstract: A method of manufacturing the useful substance 1-indanone from easily obtainable materials consists of reacting an indanyl ether represented by the generic formula ##STR1## under basic conditions to give a novel substance which is the indenyl ether derivative represented by the generic formula ##STR2## and hydrolyzing this to give the 1-indanone represented by the generic formula ##STR3##
    Type: Grant
    Filed: July 1, 1999
    Date of Patent: October 3, 2000
    Assignee: Ichikawa Gosei Chemical Co., Ltd.
    Inventors: Shigeru Nakano, Noriko Yoneta, Takashi Tate