Patents by Inventor Umi YOKOBORI

Umi YOKOBORI 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).

  • Patent number: 9919992
    Abstract: A polyether diol compound represented by the following formula (3): where R5, R6, R7 and R8, which may be the same as or different from each other, each represent a linear or branched alkyl group having 1 to 6 carbon atoms.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: March 20, 2018
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Atsushi Okamoto, Hideyuki Sato, Umi Yokobori
  • Publication number: 20170335043
    Abstract: The invention provides a triacrylate compound represented by the following formula (1). In the formula, each R is independently a hydrogen atom, an alkyl group having 1 to 6 carbon atoms or a halogen atom, R1 and R2 are each independently a linear or branched alkyl group having 1 to 6 carbon atoms, and R3 is a linear or branched alkyl group having 1 to 6 carbon atoms or a hydroxymethyl group.
    Type: Application
    Filed: October 21, 2015
    Publication date: November 23, 2017
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Umi YOKOBORI, Taketo IKENO, Hideyuki SATO, Ryuji HASEMI
  • Publication number: 20170158855
    Abstract: The present invention relates to a limited composition containing a diacrylate compound represented by general formula (1). In the formula, R denotes a hydrogen atom or a methyl group. The present invention provides a diacrylate-compound-containing composition which provides a cured product having excellent physical properties such as low curing shrinkage, flexibility, resistance to bending, and low curling properties, and which can be used as a photo- or thermal-radical polymerizable composition and a cured product of the composition.
    Type: Application
    Filed: July 2, 2015
    Publication date: June 8, 2017
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Umi YOKOBORI, Taketo IKENO, Hideyuki SATO, Tomoo TSUJIMOTO
  • Publication number: 20170129980
    Abstract: The present invention relates to a diacrylate compound represented by general formula (1), a composition thereof, and a cured product of the compound/composition. In the formula, R denotes a hydrogen atom or a methyl group; R1, R2, R3, and R4 each independently denote a C1-6 linear or branched alkyl group, with the proviso that R1, R2, R3, and R4 are not all methyl groups. The present invention provides: a novel diacrylate compound which can provide a cured product having an excellent balance of physical properties such as low curing shrinkage, flexibility, resistance to bending, and low curling properties, and which can be used as a photo- or thermal-radical polymerizable monomer; a composition of the compound; and a cured product of the compound/composition.
    Type: Application
    Filed: July 2, 2015
    Publication date: May 11, 2017
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Umi YOKOBORI, Taketo IKENO, Hideyuki SATO, Tomoo TSUJIMOTO