Patents by Inventor Keizo Inoue

Keizo Inoue 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: 11028225
    Abstract: Provided is a monomer mixture that is rapidly cured to form a cured product having high hardness, excellent alkali resistance, and excellent adhesion to a substrate. The monomer mixture of the present invention is a monomer mixture containing at least: a compound represented by Formulas (a-1) and/or (a-2); a compound (2B) including two cationically polymerizable groups per molecule, at least one of the cationically polymerizable groups being an epoxy group; a compound (3B) including three or more cationically polymerizable groups per molecule, at least one of the cationically polymerizable groups being an epoxy group; and a compound represented by Formula (c-1).
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: June 8, 2021
    Assignee: DAICEL CORPORATION
    Inventors: Tomoya Mizuta, Keizo Inoue
  • Patent number: 11028224
    Abstract: The present invention provides a monomer mixture that rapidly cures even in high humidity environments, and is useful as a raw material for a curable composition that forms a cured product having excellent adhesion to metals and glass, as well as of course to paper and plastic. The monomer mixture according to an embodiment of the present invention contains two or more types of cationically polymerizable monomers. The monomer mixture contains, as the cationically polymerizable monomers, a compound (A) having a vinyl ether group and a hydroxyl group; a compound (B) having an oxetanyl group and a hydroxyl group; and a compound (C) represented by Formula (c) below. A total content of the compound (A), the compound (B), and the compound (C) is 50 wt. % or greater of the total amount of the monomer mixture, and a content [A] of the compound (A) and a content [B] of the compound (B) satisfy Relationship (1) below. A/(A+B)?0.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: June 8, 2021
    Assignee: DAICEL CORPORATION
    Inventors: Tomoya Mizuta, Keizo Inoue
  • Patent number: 10882953
    Abstract: Provided is a monomer composition that has rapid curability and can be cured rapidly, even in the presence of oxygen and/or water, to form a cured product having excellent adhesion to a wide variety of substrates. The monomer composition according to the present invention contains a vinyl ether compound (A). The vinyl ether compound (A) includes a vinyl ether compound (a) having a cyclic ether skeleton. The monomer composition further contains at least one compound selected from the group consisting of a vinyl ether compound (a?) having a chain hydrocarbon skeleton, a divinyl ether compound (a?-1) having a cyclic hydrocarbon skeleton, an oxetane compound (B), and an epoxy compound (C).
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: January 5, 2021
    Assignee: DAICEL CORPORATION
    Inventors: Tomoya Mizuta, Keizo Inoue
  • Publication number: 20200377651
    Abstract: The present invention provides a monomer mixture that rapidly cures even in high humidity environments, and is useful as a raw material for a curable composition that forms a cured product having excellent adhesion to metals and glass, as well as of course to paper and plastic. The monomer mixture according to an embodiment of the present invention contains two or more types of cationically polymerizable monomers. The monomer mixture contains, as the cationically polymerizable monomers, a compound (A) having a vinyl ether group and a hydroxyl group; a compound (B) having an oxetanyl group and a hydroxyl group; and a compound (C) represented by Formula (c) below. A total content of the compound (A), the compound (B), and the compound (C) is 50 wt. % or greater of the total amount of the monomer mixture, and a content [A] of the compound (A) and a content [B] of the compound (B) satisfy Relationship (1) below. A/(A+B)?0.
    Type: Application
    Filed: January 25, 2019
    Publication date: December 3, 2020
    Applicant: DAICEL CORPORATION
    Inventors: Tomoya MIZUTA, Keizo INOUE
  • Publication number: 20200199293
    Abstract: Provided is a monomer mixture that is rapidly cured to form a cured product having high hardness, excellent alkali resistance, and excellent adhesion to a substrate. The monomer mixture of the present invention is a monomer mixture containing at least: a compound represented by Formulas (a-1) and/or (a-2) below; a compound (2B) including two cationically polymerizable groups per molecule, at least one of the cationically polymerizable groups being an epoxy group; a compound (3B) including three or more cationically polymerizable groups per molecule, at least one of the cationically polymerizable groups being an epoxy group; and a compound represented by Formula (c-1) below; wherein a total content of the compound represented by Formula (a-1) above and the compound represented by Formula (a-2) above is from 1 to 20 wt. % of a total amount of the monomer mixture; a ratio of contents of the compound (2B)/the compound (3B) is from 0.1 to 3.
    Type: Application
    Filed: July 19, 2018
    Publication date: June 25, 2020
    Applicant: DAICEL CORPORATION
    Inventors: Tomoya MIZUTA, Keizo INOUE
  • Publication number: 20200071453
    Abstract: Provided is a monomer mixture having fast-curing properties and forming a cured product having high hardness, excellent alkali resistance, and excellent adhesion to a substrate. The monomer mixture according to an embodiment of the present invention is a monomer mixture containing a compound represented by Formulas (a-1) and/or (a-2): a compound (2B) including two cationically polymerizable groups per molecule, at least one of the cationically polymerizable groups being an epoxy group; and a compound (3B) including three or more cationically polymerizable groups per molecule, at least one of the cationically polymerizable groups being an epoxy group; wherein a total content of the compound represented by Formula (a-1) above and the compound represented by Formula (a-2) above is from 1 to 20 wt. % of a total amount of the monomer mixture; the compound (2B) contains a compound represented by Formula (2b-1); and a content of the compound represented by Formula (2b-1) above is 5 wt.
    Type: Application
    Filed: July 19, 2018
    Publication date: March 5, 2020
    Applicant: DAICEL CORPORATION
    Inventors: Tomoya MIZUTA, Keizo INOUE
  • Publication number: 20200055977
    Abstract: The present invention is to provide a monomer mixture that is cured rapidly even in the presence of oxygen and that forms a cured product having high hardness and excellent adhesion to metals and/or glass. The monomer mixture according to an embodiment of the present invention contains two or more types of cationically polymerizable monomers. As the cationically polymerizable monomers, the monomer mixture contains at least 10 wt. %, based on a total amount of the monomer mixture, of a compound having at least one cationically polymerizable group selected from the group consisting of a vinyl ether group, an epoxy group, and an oxetanyl group, and at least one hydroxy group in a molecule, and at least 5 wt. %, based on the total amount of the monomer mixture, of a compound represented by Formula (b).
    Type: Application
    Filed: July 19, 2018
    Publication date: February 20, 2020
    Applicant: DAICEL CORPORATION
    Inventors: Tomoya MIZUTA, Keizo INOUE
  • Patent number: 10472466
    Abstract: Provided is a monomer composition that has rapid curability and can be cured rapidly, even in the presence of oxygen and/or water, to form a cured product having excellent adhesion to a wide variety of substrates. The monomer composition according to the present invention contains a vinyl ether compound (A). The vinyl ether compound (A) includes a vinyl ether compound (a) having a cyclic ether skeleton. The monomer composition further contains at least one compound selected from the group consisting of a vinyl ether compound (a?) having a chain hydrocarbon skeleton, a divinyl ether compound (a?-1) having a cyclic hydrocarbon skeleton, an oxetane compound (B), and an epoxy compound (C).
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: November 12, 2019
    Assignee: DAICEL CORPORATION
    Inventors: Tomoya Mizuta, Keizo Inoue
  • Patent number: 10392473
    Abstract: Provided is a monomer composition that has rapid curability and can be rapidly cured even in the presence of oxygen and/or water to form a cured product having excellent adhesion to a wide variety of substrates. The monomer composition contains a multifunctional vinyl ether compound in an amount of 10 to 80 weight percent, a bifunctional oxetane compound represented by Formula (b) in an amount of 0.5 to 20 weight percent, and a monofunctional oxetane compound represented by Formula (b?) in an amount of 5 to 80 weight percent. In the formulae, Ring Z is selected from an aromatic hydrocarbon ring and a structure including two or more aromatic hydrocarbon rings bonded to each other through a single bond or a linkage group; R represents a monovalent aliphatic hydrocarbon group; R? is selected from hydrogen and ethyl; and m represents an integer of 0 or more.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: August 27, 2019
    Assignee: DAICEL CORPORATION
    Inventors: Tomoya Mizuta, Keizo Inoue
  • Publication number: 20190119489
    Abstract: Provided is a thermosetting compound that has satisfactory solvent solubility and can be rapidly cured by a heat treatment to form a cured product having extreme heat resistance. The thermosetting compound according to the present invention is represented by following Formula (1). In Formula (1), R1 and R2 each independently represent a thermosetting group; D1 and D2 are each, identically or differently, selected from a single bond and a linkage group; Ar1, Ar2, and Ar3 are each, identically or differently, selected from a divalent aromatic hydrocarbon group and a divalent group including two or more aromatic hydrocarbons bonded to each other via any one selected from a single bond, a divalent aliphatic hydrocarbon group, and a divalent alicyclic hydrocarbon group; and E represents, independently on each occurrence, an ester bond.
    Type: Application
    Filed: March 14, 2017
    Publication date: April 25, 2019
    Applicant: DAICEL CORPORATION
    Inventors: Kouji NAKATANI, Keizo INOUE
  • Publication number: 20190119443
    Abstract: Provided is a monomer composition that has rapid curability and can be cured rapidly, even in the presence of oxygen and/or water, to form a cured product having excellent adhesion to a wide variety of substrates. The monomer composition according to the present invention contains a vinyl ether compound (A). The vinyl ether compound (A) includes a vinyl ether compound (a) having a cyclic ether skeleton. The monomer composition further contains at least one compound selected from the group consisting of a vinyl ether compound (a?) having a chain hydrocarbon skeleton, a divinyl ether compound (a?-1) having a cyclic hydrocarbon skeleton, an oxetane compound (B), and an epoxy compound (C).
    Type: Application
    Filed: December 7, 2018
    Publication date: April 25, 2019
    Applicant: DAICEL CORPORATION
    Inventors: Tomoya MIZUTA, Keizo INOUE
  • Publication number: 20190106540
    Abstract: Provided is a monomer composition that has rapid curability and can be cured rapidly, even in the presence of oxygen and/or water, to form a cured product having excellent adhesion to a wide variety of substrates. The monomer composition according to the present invention contains a vinyl ether compound (A). The vinyl ether compound (A) includes a vinyl ether compound (a) having a cyclic ether skeleton. The monomer composition further contains at least one compound selected from the group consisting of a vinyl ether compound (a?) having a chain hydrocarbon skeleton, a divinyl ether compound (a?-1) having a cyclic hydrocarbon skeleton, an oxetane compound (B), and an epoxy compound (C).
    Type: Application
    Filed: December 7, 2018
    Publication date: April 11, 2019
    Applicant: DAICEL CORPORATION
    Inventors: Tomoya MIZUTA, Keizo INOUE
  • Publication number: 20170158814
    Abstract: Provided is a monomer composition that has rapid curability and can be rapidly cured even in the presence of oxygen and/or water, to form a cured product having excellent adhesion to a wide variety of substrates. The monomer composition according to the present invention contains a multifunctional vinyl ether compound in an amount of 10 to 80 weight percent, a bifunctional oxetane compound represented by Formula (b) in an amount of 0.5 to 20 weight percent, and a monofunctional oxetane compound represented by Formula (b?) in an amount of 5 to 80 weight percent. In the formulae, Ring Z is selected from an aromatic hydrocarbon ring and a structure including two or more aromatic hydrocarbon rings bonded to each other through a single bond or a linkage group; R represents a monovalent aliphatic hydrocarbon group; R? is selected from hydrogen and ethyl; and m represents an integer of 0 or more.
    Type: Application
    Filed: June 23, 2015
    Publication date: June 8, 2017
    Applicant: DAICEL CORPORATION
    Inventors: Tomoya MIZUTA, Keizo INOUE
  • Publication number: 20170158812
    Abstract: Provided is a monomer composition that has rapid curability and can be cured rapidly, even in the presence of oxygen and/or water, to form a cured product having excellent adhesion to a wide variety of substrates. The monomer composition according to the present invention contains a vinyl ether compound (A). The vinyl ether compound (A) includes a vinyl ether compound (a) having a cyclic ether skeleton. The monomer composition further contains at least one compound selected from the group consisting of a vinyl ether compound (a?) having a chain hydrocarbon skeleton, a divinyl ether compound (a?-1) having a cyclic hydrocarbon skeleton, an oxetane compound (B), and an epoxy compound (C).
    Type: Application
    Filed: June 23, 2015
    Publication date: June 8, 2017
    Applicant: DAICEL CORPORATION
    Inventors: Tomoya MIZUTA, Keizo INOUE
  • Publication number: 20170152346
    Abstract: Provided is a monomer composition that has rapid curability and can be rapidly cured, even in the presence of oxygen and/or water, to form a cured product having excellent adhesion to a wide variety of substrates. The monomer composition according to the present invention includes at least one cationically curable monomer. The at least one cationically curable monomer includes at least one of 3-allyloxyoxetane and 3-(2-ethylhexyloxy)oxetane. The at least one of 3-allyloxyoxetane and 3-(2-ethylhexyloxy)oxetane is present in a total content of 5 weight percent or more of the total weight of the monomer composition.
    Type: Application
    Filed: June 23, 2015
    Publication date: June 1, 2017
    Applicant: Daicel Corporation
    Inventors: Tomoya MIZUTA, Keizo INOUE
  • Publication number: 20170130079
    Abstract: Provided is a monomer composition that has rapid curability and can be rapidly cured even in the presence of oxygen and/or water, to form a cured product having excellent adhesion to a wide variety of substrates. The monomer composition according to the present invention includes vinyl ether compounds (A). The monomer composition contains a monofunctional monomer in an amount of 20 to 80 weight percent, a hydroxy-free multifunctional vinyl ether compound in an amount of 5 to 80 weight percent, and a hydroxy-containing vinyl ether compound in an amount of 0.1 weight percent to less than 10 weight percent, where all weight percentages are based on the total weight of the monomer composition.
    Type: Application
    Filed: June 23, 2015
    Publication date: May 11, 2017
    Applicant: DAICEL CORPORATION
    Inventors: Tomoya MIZUTA, Keizo INOUE
  • Patent number: 8871890
    Abstract: Disclosed is a curable resin composition which includes a ladder-type silsesquioxane (A) having an aliphatic carbon-carbon double bond in the molecule; a ladder-type silsesquioxane (B) having a Si—H bond in the molecule; and a hydrosilylation catalyst. The curable resin composition is useful as sealants typically for optical semiconductor elements. Also disclosed is a cured article which is obtained by curing the curable resin composition. The curable resin composition can give such a cured article having properties including resistance to elevated temperatures, flexibility, transparency, resistance to thermal yellowing, and resistance to photoyellowing.
    Type: Grant
    Filed: October 31, 2011
    Date of Patent: October 28, 2014
    Assignee: Daicel Corporation
    Inventors: Keizo Inoue, Shigeaki Kamuro
  • Patent number: 8470510
    Abstract: A polymer for lithographic purposes has at least a repeating structural unit represented by following General Formula (I). In Formula (I), R1, R3, R4, and R6 each independently represent hydrogen atom, a halogen atom, cyano group, an alkyl group, or a haloalkyl group; R2 and R5 each independently represent hydrogen atom, cyano group, etc.; X1 and X2 each independently represent single bond, or a substituted or unsubstituted bivalent alkylene, alkenylene, or cycloalkylene group, etc.; X3 and X4 each independently represent single bond or —CO—; R7, R8, R9, and R10 each independently represent hydrogen atom, an alkyl group, or a cycloalkyl group. The polymer for lithographic purposes shows good balance between line edge roughness (LER) and etching resistance and allows very fine and uniform patterning.
    Type: Grant
    Filed: June 1, 2009
    Date of Patent: June 25, 2013
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Arimichi Okumura, Keizo Inoue, Kazuki Okamoto
  • Publication number: 20130131265
    Abstract: Disclosed is a curable resin composition which includes a ladder-type silsesquioxane (A) having an aliphatic carbon-carbon double bond in the molecule; a ladder-type silsesquioxane (B) having a Si—H bond in the molecule; and a hydrosilylation catalyst. The curable resin composition is useful as sealants typically for optical semiconductor elements. Also disclosed is a cured article which is obtained by curing the curable resin composition. The curable resin composition can give such a cured article having properties including resistance to elevated temperatures, flexibility, transparency, resistance to thermal yellowing, and resistance to photoyellowing.
    Type: Application
    Filed: October 31, 2011
    Publication date: May 23, 2013
    Applicant: DAICEL CORPORATION
    Inventors: Keizo Inoue, Shigeaki Kamuro
  • Patent number: 8236971
    Abstract: A polycyclic ester containing a cyano group and a lactone skeleton, represented by following Formula (1): wherein Ra represents, for example, a hydrogen atom or an alkyl group having one to six carbon atoms which may have a halogen atom; R1s each represent, for example, a halogen atom or an alkyl or haloalkyl group having one to six carbon atoms; “m” is the number of R1s; “n” is the number of cyano groups; and CH2?C(Ra)COO— group may have either of an endo conformation and an exo conformation. Accordingly, there is provided a novel polycyclic ester containing a cyano group and a lactone skeleton which is useful typically as a monomeric component for highly functional polymers. A polymer, for example, derived from this compound is highly soluble in an organic solvent while remaining stable typically to chemicals and exhibits improved hydrolyzability and/or improved solubility in water after hydrolysis.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: August 7, 2012
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Keizo Inoue, Takahiro Iwahama, Masamichi Nishimura, Kiyoharu Tsutsumi