Patents by Inventor Takahiro Dazai

Takahiro Dazai 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: 7989138
    Abstract: A fluorine-containing compound represented by a general formula (c-1) shown below: [Chemical Formula 1] RX-AN-(OR2)a??(c-1) [wherein, RX represents an organic group, AN represents a naphthalene ring that may have a substituent, R2 represents a base dissociable group, and a represents 1 or 2, provided that at least one among AN and said a R2 groups contains a fluorine atom].
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: August 2, 2011
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Sanae Furuya, Takahiro Dazai, Takayoshi Mori, Ryoichi Takasu, Tomoyuki Hirano
  • Patent number: 7960091
    Abstract: A resist composition comprising a base component (A) which exhibits changed solubility in an alkali developing solution under action of acid, an acid-generator component (B) which generates acid upon exposure, and a nitrogen-containing organic compound (D), the nitrogen-containing organic compound (D) including a nitrogen-containing polymeric compound (D1) having a structural unit (d0) containing a nitrogen atom in the side chain thereof.
    Type: Grant
    Filed: January 19, 2009
    Date of Patent: June 14, 2011
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Hiroaki Shimizu, Tsuyoshi Nakamura, Takahiro Dazai
  • Patent number: 7960089
    Abstract: A compound of the present invention is a compound represented by a general formula (A-1) [wherein, R? represents a hydrogen atom or an acid-dissociable, dissolution-inhibiting group, provided that at least one R? group is an acid-dissociable, dissolution-inhibiting group, R11 to R17 each represent an alkyl group of 1 to 10 carbon atoms or an aromatic hydrocarbon group, which may include a hetero atom within the structure; g and j each represent an integer of 1 or greater, and k and q each represent an integer of 0 or greater, provided that g+j+k+q is not greater than 5; a represents an integer from 1 to 3; b represents an integer of 1 or greater, and l and m each represent an integer of 0 or greater, provided that b+l+m is not greater than 4; c represents an integer of 1 or greater, and n and o each represent an integer of 0 or greater, provided that c+n+o is not greater than 4; and A represents a group represented by a general formula (Ia) shown below, a group represented by a general formula (Ib) shown belo
    Type: Grant
    Filed: September 13, 2006
    Date of Patent: June 14, 2011
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Daiju Shiono, Takahiro Dazai, Taku Hirayama, Kohei Kasai, Hideo Hada
  • Publication number: 20110117499
    Abstract: A fluorine-containing polymeric compound which contains a structural unit (f1) that is decomposable in an alkali developing solution as a block copolymer portion, a base component (A) that exhibits increased solubility in an alkali developing solution under the action of acid, and an acid generator component (B) that generates acid upon exposure.
    Type: Application
    Filed: June 25, 2010
    Publication date: May 19, 2011
    Applicant: TOKYO OHKA KOGYO CO., LTD.
    Inventors: Tasuku MATSUMIYA, Daiju SHIONO, Tomoyuki HIRANO, Takahiro DAZAI
  • Patent number: 7919651
    Abstract: A compound represented by general formula (I) shown below; and a polymeric compound having a structural unit (a0) represented by general formula (a0-1) shown below: wherein R1 represents a hydrogen atom, a lower alkyl group or a halogenated lower alkyl group; A represents a divalent hydrocarbon group of 2 or more carbon atoms which may have a substituent; B represents a divalent hydrocarbon group of 1 or more carbon atoms which may have a substituent; and R2 represents an acid dissociable, dissolution inhibiting group.
    Type: Grant
    Filed: August 6, 2009
    Date of Patent: April 5, 2011
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Daiju Shiono, Takahiro Dazai, Hiroaki Shimizu
  • Patent number: 7914967
    Abstract: A resist composition for immersion exposure including a base component (A) which exhibits changed solubility in an alkali developing solution under action of acid, an acid-generator component (B) which generates acid upon irradiation, and a fluorine-containing compound (C) having a group represented by general formula (c) shown below and containing at least one fluorine atom: wherein Q represents a group in which one hydrogen atom has been removed from a monovalent hydrophilic group; and R1 represents a hydrocarbon group of 2 or more carbon atoms which may have a fluorine atom.
    Type: Grant
    Filed: August 1, 2008
    Date of Patent: March 29, 2011
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Sanae Furuya, Takayoshi Mori, Takahiro Dazai, Ryoichi Takasu, Tomoyuki Hirano
  • Publication number: 20100248148
    Abstract: There is provided a positive resist composition including a resin component (A) which displays increased solubility in an alkali developing solution under action of acid, and an acid generator component (B) which generates an acid upon exposure, wherein the resin component (A) includes a polymer compound (A1) containing a structural unit (a0) represented by a general formula (a0-1) shown below, and a structural unit (a1) derived from an acrylate ester which has an acid dissociable, dissolution inhibiting group: (in the formula (a0-1), R represents a hydrogen atom, a lower alkyl group, or a halogenated lower alkyl group; two of R? each independently represents a hydrogen atom, a lower alkyl group, or an alkoxy group of 1 to 5 carbon atoms; X represents an alkylene group of 1 to 5 carbon atoms, an oxygen atom, or a sulfur atom.).
    Type: Application
    Filed: June 11, 2010
    Publication date: September 30, 2010
    Applicant: TOKYO OHKA KOGYO CO., LTD.
    Inventors: Takahiro DAZAI, Takayoshi MORI, Hiroaki SHIMIZU, Kyoko OHSHITA
  • Publication number: 20100233626
    Abstract: A positive resist composition including a polymeric compound (A1) having a structural unit (a0) represented by general formula (a0-1) (R represents a hydrogen atom, an alkyl group of 1 to 5 carbon atoms or a halogenated alkyl group of 1 to 5 carbon atoms, R2 represents a divalent linking group, R3 represents a cyclic group containing —SO2— within the ring skeleton thereof) and a structural unit (a1) derived from an acrylate ester containing an acid dissociable, dissolution inhibiting group, an acid-generator component (B) and a fluorine-containing polymeric compound (F1) having a structural unit containing a base dissociable group.
    Type: Application
    Filed: March 10, 2010
    Publication date: September 16, 2010
    Applicant: TOKYO OHKA KOGYO CO., LTD.
    Inventors: Hiroaki Shimizu, Hideto Nito, Junichi Tsuchiya, Takahiro Dazai
  • Publication number: 20100233625
    Abstract: A positive resist composition including a base component (A) which exhibits increased solubility in an alkali developing solution under the action of acid, and an acid-generator component (B) which generates acid upon exposure, the base component (A) including a polymeric compound (A1) containing a structural unit (a0) having an aromatic group, a structural unit (a5) represented by general formula (a5-1) shown below, and a structural unit (a1) containing an acid-dissociable, dissolution-inhibiting group. In the formula (a5-1), R1 represents a hydrogen atom, an alkyl group of 1 to 5 carbon atoms or a halogenated alkyl group of 1 to 5 carbon atoms, R2 represents a divalent linking group, and R3 represents a cyclic group containing —SO2— within the ring skeleton thereof.
    Type: Application
    Filed: March 10, 2010
    Publication date: September 16, 2010
    Applicant: TOKYO OHKA KOGYO CO., LTD.
    Inventors: Tomoyuki Hirano, Tasuku Matsumiya, Daiju Shiono, Takahiro Dazai
  • Publication number: 20100209848
    Abstract: A polymeric compound (A1) includes a structural unit (a0-1) represented by general formula (a0-1), a structural unit (a0-2) represented by general formula (a0-2), and a structural unit (a1-0-1) represented by general formula (a1-0-1), wherein relative to the combined total of all the structural units, the proportion of the structural unit (a0-1) is from 10 to 40 mol %, the proportion of the structural unit (a0-2) is from 5 to 20 mol %, and the proportion of the structural unit (a1-0-1) is from 10 to 55 mol %. [In the formulas, each of R1 and R independently represents a hydrogen atom, an alkyl group of 1 to 5 carbon atoms, or a halogenated alkyl group of 1 to 5 carbon atoms, R2, A and B each represents a divalent linking group, R3 represents a cyclic group containing —SO2— within the ring skeleton thereof, and R4 and X1 each represents an acid-dissociable, dissolution-inhibiting group.
    Type: Application
    Filed: January 26, 2010
    Publication date: August 19, 2010
    Applicant: TOKYO OHKA KOGYO CO., LTD.
    Inventors: Takahiro Dazai, Tomoyuki Hirano, Tasuku Matsumiya, Daiju Shiono
  • Publication number: 20100196821
    Abstract: A positive resist composition including a base component (A) which exhibits changed solubility in an alkali developing solution under the action of acid and an acid-generator component (B) which generates acid upon exposure dissolved in an organic solvent (S), the base component (A) containing a polymeric compound (A1) including a structural unit (a0) derived from an acrylate ester having a cyclic group containing a sulfonyl group on the side chain thereof, a structural unit (a1) derived from an acrylate ester containing an acid dissociable, dissolution inhibiting group and a structural unit (a5) represented by general formula (a5-1) (Y1 represents an aliphatic hydrocarbon group; Z represents a monovalent organic group; a represents an integer of 1 to 3, and b represents an integer of 0 to 2, provided that a+b=1 to 3).
    Type: Application
    Filed: January 14, 2010
    Publication date: August 5, 2010
    Applicant: TOKYO OHKA KOGYO CO., LTD.
    Inventors: Takahiro Dazai, Daiju Shiono, Tomoyuki Hirano, Tasuku Matsumiya, Masaru Takeshita
  • Patent number: 7767379
    Abstract: There is provided a positive resist composition including a resin component (A) which displays increased solubility in an alkali developing solution under action of acid, and an acid generator component (B) which generates an acid upon exposure, wherein the resin component (A) includes a polymer compound (A1) containing a structural unit (a0) represented by a general formula (a0-1) shown below, and a structural unit (a1) derived from an acrylate ester which has an acid dissociable, dissolution inhibiting group: (in the formula (a0-1), R represents a hydrogen atom, a lower alkyl group, or a halogenated lower alkyl group; two of R? each independently represents a hydrogen atom, a lower alkyl group, or an alkoxy group of 1 to 5 carbon atoms; X represents an alkylene group of 1 to 5 carbon atoms, an oxygen atom, or a sulfur atom.).
    Type: Grant
    Filed: September 4, 2008
    Date of Patent: August 3, 2010
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Takahiro Dazai, Takayoshi Mori, Hiroaki Shimizu, Kyoko Oshita
  • Publication number: 20100183974
    Abstract: A compound of the present invention is a compound represented by a general formula (A-1) [wherein, R? represents a hydrogen atom or an acid-dissociable, dissolution-inhibiting group, provided that at least one R? group is an acid-dissociable, dissolution-inhibiting group, R11 to R17 each represent an alkyl group of 1 to 10 carbon atoms or an aromatic hydrocarbon group, which may include a hetero atom within the structure; g and j each represent an integer of 1 or greater, and k and q each represent an integer of 0 or greater, provided that g+j+k+q is not greater than 5; a represents an integer from 1 to 3; b represents an integer of 1 or greater, and l and m each represent an integer of 0 or greater, provided that b+l+m is not greater than 4; c represents an integer of 1 or greater, and n and o each represent an integer of 0 or greater, provided that c+n+o is not greater than 4; and A represents a group represented by a general formula (Ia) shown below, a group represented by a general formula (Ib) shown belo
    Type: Application
    Filed: September 13, 2006
    Publication date: July 22, 2010
    Applicant: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Daiju Shiono, Takahiro Dazai, Taku Hirayama, Kohei Kasai, Hideo Hada
  • Publication number: 20100183981
    Abstract: A positive resist composition including a base component (A) which exhibits increased solubility in an alkali developing solution under action of acid and an acid-generator component (B) which generates acid upon exposure, the base component (A) including a polymeric compound (A1) containing a structural unit (a0) represented by general formula (a0-1), a structural unit (a1) derived from an acrylate ester containing an acid dissociable, dissolution inhibiting group, and a structural unit (a3) derived from an acrylate ester containing a hydroxy group-containing aliphatic hydrocarbon group represented by general formula (a3-1), and the amount of the structural unit (a3) based on the combined total of all structural units constituting the polymeric compound (A1) being in the range of 1 to 30 mol %.
    Type: Application
    Filed: December 2, 2009
    Publication date: July 22, 2010
    Inventors: Tasuku Matsumiya, Daiju Shiono, Tomoyuki Hirano, Takahiro Dazai, Kotaro Endo
  • Publication number: 20100178609
    Abstract: A resist composition including a base component (A) which exhibits changed solubility in an alkali developing solution under action of an acid, and an acid generator component (B), wherein the base component (A) includes a polymeric compound (A0) containing a structural unit (a0) represented by the general formula (a0-1) shown below: (wherein, R1 represents a hydrogen atom, an alkyl group or a halogenated alkyl group; R2 represents a bivalent linking group containing at least one kind of polar groups selected from the group consisting of —O—, —C(?O)—, —C(?O)—O—, a carbonate linkage (—O—C(?O)—O—), —S—, —S(?O)2—, —S(?O)2—O—, —NH—, —NR04— (wherein, R04 represents an alkyl group or an acyl group), and —NH—C(?O)—; and R3 represents a cyclic group containing a sulfonyl group within the ring skeleton).
    Type: Application
    Filed: January 11, 2010
    Publication date: July 15, 2010
    Applicant: TOKYO OHKA KOGYO CO., LTD.
    Inventors: Takahiro Dazai, Daiju Shiono, Tomoyuki Hirano, Tasuku Matsumiya, Daichi Takaki, Takayoshi Mori, Junichi Tsuchiya
  • Patent number: 7745098
    Abstract: A polymer compound having a structural unit (a0) represented by a general formula (a0-1) shown below, and a structural unit (a1) that is derived from an acrylate ester containing an acid dissociable, dissolution inhibiting group but is not classified as said structural unit (a0).
    Type: Grant
    Filed: August 26, 2008
    Date of Patent: June 29, 2010
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Takahiro Dazai, Takayoshi Mori, Hiroaki Shimizu, Kyoko Ohshita, Komei Hirahara
  • Patent number: 7741009
    Abstract: A positive resist composition including a resin component (A) which exhibits increased solubility in an alkali developing solution under action of acid and has a structural unit (a1) represented by general formula (a1-0-2) shown below, and an acid-generator component (B) which generates acid upon exposure and includes an acid generator (B1) consisting of a compound represented by general formula (b1-12) shown below: wherein R represents a hydrogen atom, a lower alkyl group or a halogenated lower alkyl group; X2 represents an acid dissociable, dissolution inhibiting group; and Y2 represents an alkylene group or a divalent aliphatic cyclic group; and R2—O—Y1—SO3?A+??(b1-12) wherein R2 represents a monovalent aromatic organic group; Y1 represents an alkylene group of 1 to 4 carbon atoms which may be substituted with a fluorine atom; and A+ represents a cation.
    Type: Grant
    Filed: July 17, 2008
    Date of Patent: June 22, 2010
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Takahiro Dazai, Hiroaki Shimizu, Kyoko Ohshita, Komei Hirahara
  • Publication number: 20100124718
    Abstract: A polymeric compound including a structural unit (a0) represented by the structural unit (a0-1) shown below: (in the formula (a0-1), R1 represents a hydrogen atom, a lower alkyl group, or a halogenated lower alkyl group; R5 represents an alkyl group; R6 represents a substituent selected from the group consisting of an alkyl group, an alkoxy group, a halogen atom and a halogenated alkyl group; and e represents an integer of 0 to 5).
    Type: Application
    Filed: June 11, 2008
    Publication date: May 20, 2010
    Inventors: Sanae Furuya, Takahiro Dazai, Shinichi Kohno
  • Publication number: 20100086873
    Abstract: A positive resist composition including: a base component (A) which includes a polymeric compound (A1) containing a structural unit (a0) represented by the general formula (a0-1) and a structural unit (a1) derived from an acrylate ester having an acid dissociable, dissolution inhibiting group; and an acid generator component (B) which includes an acid generator (B1) containing an anion moiety represented by the general formula (I): (in the formula (a0-1), R1 represents a hydrogen atom, a lower alkyl group of 1 to 5 carbon atoms or a halogenated lower alkyl group of 1 to 5 carbon atoms; R2 represents a bivalent linking group; and R3 represents a cyclic group containing —SO2— within the ring skeleton. In the formula (I), X represents a cyclic group of 3 to 30 carbon atoms, Q1 represents a bivalent linking group containing an oxygen atom; Y1 represents an alkylene group of 1 to 4 carbon atoms or a fluorinated alkylene group of 1 to 4 carbon atoms).
    Type: Application
    Filed: October 5, 2009
    Publication date: April 8, 2010
    Applicant: TOKYO OHKA KOGYO CO., LTD.
    Inventors: Takehiro Seshimo, Yoshiyuki Utsumi, Akiya Kawaue, Takahiro Dazai, Tomoyuki Hirano, Fumitake Kaneko, Kotaro Endo
  • Publication number: 20100081086
    Abstract: A positive resist composition including a base component (A) which exhibits increased solubility in an alkali developing solution under action of acid and an acid-generator component (B) which generates acid upon exposure, the base component (A) including a polymeric compound (A1?) containing an acid dissociable, dissolution inhibiting group within the structure thereof and including a structural unit (a0) represented by general formula (a0-1) (R2 represents a divalent linking group, and A? represents an oxygen atom, a sulfur atom, or an alkylene group of 1 to 5 carbon atoms which may contain an oxygen atom or a sulfur atom) and a structural unit (a2) derived from an acrylate ester containing a lactone-containing cyclic group; or a polymeric compound (Al) including the structural unit (a0) and a structural unit (al) derived from an acrylate ester containing an acid dissociable, dissolution inhibiting group.
    Type: Application
    Filed: September 28, 2009
    Publication date: April 1, 2010
    Applicant: TOKYO OHKA KOGYO CO., LTD.
    Inventors: Tomoyuki HIRANO, Takahiro DAZAI, Daiju SHIONO, Tasuku MATSUMIYA