Patents by Inventor Hiroko Yamaguchi

Hiroko Yamaguchi 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).

  • Composition of vinyl ether group-containing (meth) acrylic acid ester and production method thereof
    Publication number: 20080214858
    Abstract: It is an object of the present invention to provide a vinyl ether group-containing (meth) acrylic ester, which has both radical polymerizability and cation polymerizability, improved in storage stability and stability in handling without impairing its polymerizability or, in other words, provide a stabilized vinyl ether group-containing (meth) acrylic ester. Another object is to provide a method of producing a stabilized vinyl ether group-containing (meth) acrylic ester composition. A further object is to provide a method of stably handing, a method of economically and stably producing and a method of purifying a vinyl ether group-containing (meth) acrylic ester.
    Type: Application
    Filed: December 31, 2007
    Publication date: September 4, 2008
    Applicant: NIPPON SHOKUBAI CO., LTD.
    Inventors: Keiji YURUGI, Hiroko YAMAGUCHI
  • Composition of vinyl ether group containing (meth)acrylic acid ester and production method thereof
    Patent number: 7368594
    Abstract: It is an object of the present invention to provide a vinyl ether group-containing, (meth)acrylic ester, which has both radical polymerizability and cation polymerizability, improved in storage stability and stability in handling without impairing its polymerizability or, in other words, provide a stabilized vinyl ether group-containing (meth)acrylic ester. Another object is to provide a method of producing a stabilized vinyl ether group-containing (meth)acrylic ester composition. A further object is to provide a method of stably handing, a method of economically and stably producing and a method of purifying a vinyl ether group-containing (meth)acrylic ester.
    Type: Grant
    Filed: October 24, 2006
    Date of Patent: May 6, 2008
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Keiji Yurugi, Hiroko Yamaguchi
  • Composition of vinyl ether group-containing (meth) acrylic ester and production method thereof
    Patent number: 7321051
    Abstract: It is an object of the present invention to provide a vinyl ether group-containing (meth)acrylic ester, which has both radical polymerizability and cation polymerizability, improved in storage stability and stability in handling without impairing its polymerizability or, in other words, provide a stabilized vinyl ether group-containing (meth)acrylic ester. Another object is to provide a method of producing a stabilized vinyl ether group-containing (meth)acrylic ester composition. A further object is to provide a method of stably handing, a method of economically and stably producing and a method of purifying a vinyl ether group-containing (meth)acrylic ester.
    Type: Grant
    Filed: October 22, 2001
    Date of Patent: January 22, 2008
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Keiji Yurugi, Hiroko Yamaguchi
  • COMPOSITION OF VINYL ETHER GROUP CONTAINING (METH) ACRYLIC ACID ESTER AND PRODUCTION METHOD THEREOF
    Publication number: 20070049768
    Abstract: It is an object of the present invention to provide a vinyl ether group-containing, (meth)acrylic ester, which has both radical polymerizability and cation polymerizability, improved in storage stability and stability in handling without impairing its polymerizability or, in other words, provide a stabilized vinyl ether group-containing (meth)acrylic ester. Another object is to provide a method of producing a stabilized vinyl ether group-containing (meth)acrylic ester composition. A further object is to provide a method of stably handing, a method of economically and stably producing and a method of purifying a vinyl ether group-containing (meth)acrylic ester.
    Type: Application
    Filed: October 24, 2006
    Publication date: March 1, 2007
    Applicant: NIPPON SHOKUBAI CO., LTD.
    Inventors: Keiji Yurugi, Hiroko Yamaguchi
  • Aromatic ethers and process for producing aromatic ethers
    Publication number: 20040181099
    Abstract: According to a production process, aromatic ethers are producible by reacting phenols with an oxirane compound with use of an anion exchange resin as a catalyst. According to another production process, aromatic ethers having an alcoholic hydroxyl group are producible by a crystallization-purification step of using a solvent having a solubility parameter ranging from 7.5 to 12.5 for purification by crystallization. Further, according to still another production process, producible are aromatic ethers having an alcoholic hydroxyl group, wherein the content of a metal in the aromatic ethers is less than 100 ppm by mass, and the content of a halogen element in the aromatic ethers is less than 100 ppm by mass.
    Type: Application
    Filed: July 25, 2003
    Publication date: September 16, 2004
    Inventors: Yoshiaki Hirano, Hiroshi Yamamoto, Takafumi Kubo, Hideaki Nagano, Mitsuhiro Kitajima, Hiroko Yamaguchi
  • Composition of vinyl ether group-containing (meth) acrylic acid ester and production method thereof
    Publication number: 20020143120
    Abstract: It is an object of the present invention to provide a vinyl ether group-containing (meth)acrylic ester, which has both radical polymerizability and cation polymerizability, improved in storage stability and stability in handling without impairing its polymerizability or, in other words, provide a stabilized vinyl ether group-containing (meth)acrylic ester. Another object is to provide a method of producing a stabilized vinyl ether group-containing (meth)acrylic ester composition. A further object is to provide a method of stably handing, a method of economically and stably producing and a method of purifying a vinyl ether group-containing (meth)acrylic ester.
    Type: Application
    Filed: October 22, 2001
    Publication date: October 3, 2002
    Applicant: NIPPON SHOKUBAI CO., LTD.
    Inventors: Keiji Yurugi, Hiroko Yamaguchi