Patents by Inventor Yousuke Kishikawa

Yousuke Kishikawa 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 ?-fluoroacrylic acid ester
    Patent number: 9738589
    Abstract: The object of the present invention is to provide a process for producing ?-fluoroacrylic acid ester at a high starting material conversion, high selectivity, and high yield. The present invention provides a process for producing the compound represented by the formula (1) wherein R represents alkyl optionally substituted with one or more fluorine atoms, the process comprising step A of reacting a compound represented by the formula (2) wherein X represents a bromine atom or a chlorine atom with an alcohol represented by the formula (3) wherein the symbol is as defined above, and carbon monoxide in the presence of a transition metal catalyst and a base to thereby obtain the compound represented by the formula (1).
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: August 22, 2017
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Tatsuya Ohtsuka, Akihiro Gotou, Sumi Ishihara, Yoshihiro Yamamoto, Akinori Yamamoto, Yoshichika Kuroki, Yuzo Komatsu, Yousuke Kishikawa
  • METHOD FOR PRODUCING alpha-FLUOROACRYLIC ACID ESTER
    Publication number: 20160297740
    Abstract: The object of the present invention is to provide a process for producing ?-fluoroacrylic acid ester at a high starting material conversion, high selectivity, and high yield. The present invention provides a process for producing the compound represented by the formula (1) wherein R represents alkyl optionally substituted with one or more fluorine atoms, the process comprising step A of reacting a compound represented by the formula (2) wherein X represents a bromine atom or a chlorine atom with an alcohol represented by the formula (3) wherein the symbol is as defined above, and carbon monoxide in the presence of a transition metal catalyst and a base to thereby obtain the compound represented by the formula (1).
    Type: Application
    Filed: June 15, 2016
    Publication date: October 13, 2016
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Tatsuya OHTSUKA, Akihiro GOTOU, Sumi ISHIHARA, Yoshihiro YAMAMOTO, Akinori YAMAMOTO, Yoshichika KUROKI, Yuzo KOMATSU, Yousuke KISHIKAWA
  • Method for producing ?-fluoroacrylic acid ester
    Patent number: 9388117
    Abstract: The object of the present invention is to provide a process for producing ?-fluoroacrylic acid ester at a high starting material conversion, high selectivity, and high yield. The present invention provides a process for producing the compound represented by the formula (1) wherein R represents alkyl optionally substituted with one or more fluorine atoms, the process comprising step A of reacting a compound represented by the formula (2) wherein X represents a bromine atom or a chlorine atom with an alcohol represented by the formula (3) wherein the symbol is as defined above, and carbon monoxide in the presence of a transition metal catalyst and a base to thereby obtain the compound represented by the formula (1).
    Type: Grant
    Filed: August 30, 2013
    Date of Patent: July 12, 2016
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Tatsuya Ohtsuka, Akihiro Gotou, Sumi Ishihara, Yoshihiro Yamamoto, Akinori Yamamoto, Yoshichika Kuroki, Yuzo Komatsu, Yousuke Kishikawa
  • METHOD FOR PRODUCING alpha-FLUOROACRYLIC ACID ESTER
    Publication number: 20150191413
    Abstract: The object of the present invention is to provide a process for producing ?-fluoroacrylic acid ester at a high starting material conversion, high selectivity, and high yield. The present invention provides a process for producing the compound represented by the formula (1) wherein R represents alkyl optionally substituted with one or more fluorine atoms, the process comprising step A of reacting a compound represented by the formula (2) wherein X represents a bromine atom or a chlorine atom with an alcohol represented by the formula (3) wherein the symbol is as defined above, and carbon monoxide in the presence of a transition metal catalyst and a base to thereby obtain the compound represented by the formula (1).
    Type: Application
    Filed: August 30, 2013
    Publication date: July 9, 2015
    Inventors: Tatsuya Ohtsuka, Akihiro Gotou, Sumi Ishihara, Yoshihiro Yamamoto, Akinori Yamamoto, Yoshichika Kuroki, Yuzo Komatsu, Yousuke Kishikawa