Patents by Inventor Kouichi Fujiwara

Kouichi Fujiwara 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: 9348226
    Abstract: A radiation-sensitive resin composition comprising an acid-labile group-containing resin obtained by living radical polymerization having a specific structure which is insoluble or scarcely soluble in alkali, but becomes alkali soluble by the action of an acid, and a photoacid generator, wherein the ratio of weight average molecular weight to number average molecular weight (weight average molecular weight/number average molecular weight) of the acid-labile group-containing resin is smaller than 1.5.
    Type: Grant
    Filed: December 24, 2003
    Date of Patent: May 24, 2016
    Assignee: JSR CORPORATION
    Inventors: Isao Nishimura, Kouichi Fujiwara, Eiichi Kobayashi, Tsutomu Shimokawa, Atsushi Nakamura, Eiji Yoneda, Yong Wang
  • Patent number: 9029067
    Abstract: A resist pattern-insolubilizing resin composition is used in a resist pattern-forming method. The resist pattern-insolubilizing resin composition includes solvent and a resin. The resin includes a first repeating unit that includes a hydroxyl group in its side chain and at least one of a second repeating unit derived from a monomer shown by a following formula (1-1) and a third repeating unit derived from a monomer shown by a following formula (1-2), wherein for example, R1 represents a hydrogen atom, A represents a methylene group, R2 represents a group shown by a following formula (2-1) or a group shown by a following formula (2-2), R3 represents a methylene group, R4 represents a hydrogen atom, and n is 0 or 1, wherein each of R34 represents at least one of a hydrogen atom and a linear or branched alkyl group having 1 to 10 carbon atoms.
    Type: Grant
    Filed: September 16, 2014
    Date of Patent: May 12, 2015
    Assignee: JSR Corporation
    Inventors: Gouji Wakamatsu, Masafumi Hori, Kouichi Fujiwara, Makoto Sugiura
  • Publication number: 20150004547
    Abstract: A resist pattern-insolubilizing resin composition is used in a resist pattern-forming method. The resist pattern-insolubilizing resin composition includes solvent and a resin. The resin includes a first repeating unit that includes a hydroxyl group in its side chain and at least one of a second repeating unit derived from a monomer shown by a following formula (1-1) and a third repeating unit derived from a monomer shown by a following formula (1-2), wherein for example, R1 represents a hydrogen atom, A represents a methylene group, R2 represents a group shown by a following formula (2-1) or a group shown by a following formula (2-2), R3 represents a methylene group, R4 represents a hydrogen atom, and n is 0 or 1, wherein each of R34 represents at least one of a hydrogen atom and a linear or branched alkyl group having 1 to 10 carbon atoms.
    Type: Application
    Filed: September 16, 2014
    Publication date: January 1, 2015
    Applicant: JSR Corporation
    Inventors: Gouji WAKAMATSU, Masafumi HORI, Kouichi FUJIWARA, Makoto SUGIURA
  • Patent number: 8877429
    Abstract: A resist pattern-insolubilizing resin composition is used in a resist pattern-forming method. The resist pattern-insolubilizing resin composition includes solvent and a resin. The resin includes a first repeating unit that includes a hydroxyl group in its side chain and at least one of a second repeating unit derived from a monomer shown by a following formula (1-1) and a third repeating unit derived from a monomer shown by a following formula (1-2), wherein for example, R1 represents a hydrogen atom, A represents a methylene group, R2 represents a group shown by a following formula (2-1) or a group shown by a following formula (2-2), R3 represents a methylene group, R4 represents a hydrogen atom, and n is 0 or 1, wherein each of R34 represents at least one of a hydrogen atom and a linear or branched alkyl group having 1 to 10 carbon atoms.
    Type: Grant
    Filed: January 12, 2011
    Date of Patent: November 4, 2014
    Assignee: JSR Corporation
    Inventors: Gouji Wakamatsu, Masafumi Hori, Kouichi Fujiwara, Makoto Sugiura
  • Patent number: 8729464
    Abstract: This invention provides a method or device for determining the stage of chronic kidney disease. The present invention relates to a method for determining a stage of chronic kidney disease in a subject suffering from kidney disease, the method comprising the steps of: (A-1) measuring the content of at least one marker selected from the group consisting of markers (1) to (16) in a specimen from the subject, (B-1) determining the stage indicated by each marker by comparing the content of the at least one marker in the specimen from the subject, which has been measured in step (A-1), with a reference content range determined in each stage, and (C-1) determining that when each marker indicates the same stage, which has been determined in step (A-1), the chronic kidney disease in the subject is in that stage.
    Type: Grant
    Filed: May 30, 2011
    Date of Patent: May 20, 2014
    Inventors: Noriaki Tanaka, Masahiro Kohno, Emiko Sato, Kouichi Fujiwara
  • Patent number: 8501385
    Abstract: A positive-tone radiation-sensitive composition is used in a resist pattern-forming method as a first positive-tone radiation-sensitive composition. A positive-tone radiation-sensitive composition includes a polymer, a photoacid generator, and a solvent. The polymer includes an acid-labile group and a crosslinkable group. The resist pattern-forming method includes providing the first positive-tone radiation-sensitive composition on a substrate to form a first resist pattern on the substrate. The first resist pattern is made to be inactive to light or heat so that the first resist pattern is insoluble in a second positive-tone radiation-sensitive composition. The second positive-tone radiation-sensitive composition is provided on the substrate to form a second resist pattern on the substrate on which the first resist pattern is formed.
    Type: Grant
    Filed: January 13, 2011
    Date of Patent: August 6, 2013
    Assignee: JSR Corporation
    Inventors: Yusuke Anno, Kouichi Fujiwara, Makoto Sugiura, Gouji Wakamatsu
  • Publication number: 20130068945
    Abstract: This invention provides a method or device for determining the stage of chronic kidney disease. The present invention relates to a method for determining a stage of chronic kidney disease in a subject suffering from kidney disease, the method comprising the steps of: (A-1) measuring the content of at least one marker selected from the group consisting of markers (1) to (16) in a specimen from the subject, (B-1) determining the stage indicated by each marker by comparing the content of the at least one marker in the specimen from the subject, which has been measured in step (A-1), with a reference content range determined in each stage, and (C-1) determining that when each marker indicates the same stage, which has been determined in step (A-1), the chronic kidney disease in the subject is in that stage.
    Type: Application
    Filed: May 30, 2011
    Publication date: March 21, 2013
    Inventors: Noriaki Tanaka, Masahiro Kohno, Emiko Sato, Kouichi Fujiwara
  • Patent number: 8240863
    Abstract: In a chassis which has a lid plate closing an opening portion of a frame part and in which a plurality of lamps are juxtaposed, the lid plate includes a plurality of plate bodies juxtaposed with their end parts superposed on each other and a connecting unit connects the superposed end parts of the plate bodies and the superposed end parts of the plate bodies, respectively.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: August 14, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hideto Takeuchi, Kouichi Fujiwara, Akira Toyama
  • Patent number: 8192059
    Abstract: Indexes indicative of the locations of lamp clips are formed on a chassis where lamps are juxtaposed with different juxtaposition pitches. The lamp clips comprise: plate-like bases; holding portions, which are provided at one face of the bases, for holding the lamps; and markers corresponding to the indexes.
    Type: Grant
    Filed: July 6, 2007
    Date of Patent: June 5, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masashi Yokota, Tsutomu Tsuji, Takaharu Kikuchi, Masaki Okazaki, Hirotomo Onozaki, Kouichi Fujiwara
  • Publication number: 20110123936
    Abstract: A resist pattern coating agent includes a hydroxyl group-containing resin, a solvent, and at least two compounds including at least two groups shown by a following formula (1), compounds including a group shown by a following formula (2), and compounds including a group shown by a following formula (4).
    Type: Application
    Filed: February 7, 2011
    Publication date: May 26, 2011
    Applicant: JSR Corporation
    Inventors: Masafumi HORI, Michihiro Mita, Kouichi Fujiwara, Katsuhiko Hieda, Yoshikazu Yamaguchi, Tomohiro Kakizawa
  • Publication number: 20110111349
    Abstract: A resist pattern-insolubilizing resin composition is used in a resist pattern-forming method. The resist pattern-insolubilizing resin composition includes solvent and a resin. The resin includes a first repeating unit that includes a hydroxyl group in its side chain and at least one of a second repeating unit derived from a monomer shown by a following formula (1-1) and a third repeating unit derived from a monomer shown by a following formula (1-2), wherein for example, R1 represents a hydrogen atom, A represents a methylene group, R2 represents a group shown by a following formula (2-1) or a group shown by a following formula (2-2), R3 represents a methylene group, R4 represents a hydrogen atom, and n is 0 or 1, wherein each of R34 represents at least one of a hydrogen atom and a linear or branched alkyl group having 1 to 10 carbon atoms.
    Type: Application
    Filed: January 12, 2011
    Publication date: May 12, 2011
    Applicant: JSR Corporation
    Inventors: Gouji WAKAMATSU, Masafumi Hori, Kouichi Fujiwara, Makoto Sugiura
  • Publication number: 20110104612
    Abstract: A positive-tone radiation-sensitive composition is used in a resist pattern-forming method as a first positive-tone radiation-sensitive composition. A positive-tone radiation-sensitive composition includes a polymer, a photoacid generator, and a solvent. The polymer includes an acid-labile group and a crosslinkable group. The resist pattern-forming method includes providing the first positive-tone radiation-sensitive composition on a substrate to form a first resist pattern on the substrate. The first resist pattern is made to be inactive to light or heat so that the first resist pattern is insoluble in a second positive-tone radiation-sensitive composition. The second positive-tone radiation-sensitive composition is provided on the substrate to form a second resist pattern on the substrate on which the first resist pattern is formed.
    Type: Application
    Filed: January 13, 2011
    Publication date: May 5, 2011
    Applicant: JSR Corporation
    Inventors: Yusuke ANNO, Kouichi Fujiwara, Makoto Sugiura, Gouji Wakamatsu
  • Publication number: 20100172154
    Abstract: In a chassis which has a lid plate closing an opening portion of a frame part and in which a plurality of lamps are juxtaposed, the lid plate includes a plurality of plate bodies juxtaposed with their end parts superposed on each other and a connecting unit connects the superposed end parts of the plate bodies and the superposed end parts of the plate bodies, respectively.
    Type: Application
    Filed: May 29, 2008
    Publication date: July 8, 2010
    Inventors: Hideto Takeuchi, Kouichi Fujiwara, Akira Toyama
  • Patent number: 7704669
    Abstract: To provide a resist which is excellent in the solubility in a resist solvent and little dependent on baking temperature and can form developed patterns reduced in line edge roughness. An acrylic polymer characterized by comprising units of the general formula (1), units of general formula (2), and units of general formula (3) and/or units of general formula (4), wherein R, R?, R? and R?? are each hydrogen, methyl, or trifluoromethyl; R1 is hydrogen, C1-4 linear or branched alkyl, alkoxy, or C1-4 linear or branched fluoroalkyl; X is a C7-20 polycyclic aliphatic hydrocarbon group consisting of carbon atoms and hydrogen atoms; R2 and R3 are each independently C1-4 linear or branched alkyl; R4 is a C4-20 alicyclic hydrocarbon group; R5 is C1-4 linear or branched alkyl; and R6 and R7 are each hydrogen or C1-4 linear or branched alkyl.
    Type: Grant
    Filed: August 4, 2004
    Date of Patent: April 27, 2010
    Assignee: JSR Corporation
    Inventors: Kouichi Fujiwara, Hiroshi Yamaguchi, Atsushi Nakamura
  • Publication number: 20090323307
    Abstract: Indexes indicative of the locations of lamp clips are formed on a chassis where lamps are juxtaposed with different juxtaposition pitches. The lamp clips comprise: plate-like bases; holding portions, which are provided at one face of the bases, for holding the lamps; and markers corresponding to the indexes.
    Type: Application
    Filed: July 6, 2007
    Publication date: December 31, 2009
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Masashi Yokota, Tsutomu Tsuji, Takaharu Kikuchi, Masaki Okazaki, Hirotomo Onozaki, Kouichi Fujiwara
  • Patent number: 7452655
    Abstract: An acrylic copolymer having a specific structure and a radiation-sensitive resin composition comprising the acrylic copolymer having high transparency to radiation, excelling in basic properties as a resist such as sensitivity, resolution, dry etching resistance, and pattern shape, and, in particular, excelling in forming contact holes and lines-and-spaces.
    Type: Grant
    Filed: November 4, 2003
    Date of Patent: November 18, 2008
    Assignee: JSR Corporation
    Inventors: Hiroyuki Ishii, Kouichi Fujiwara, Hiroshi Yamaguchi, Yukio Nishimura
  • Publication number: 20070269754
    Abstract: To provide a resist which is excellent in the solubility in a resist solvent and little dependent on baking temperature and can form developed patterns reduced in line edge roughness. An acrylic polymer characterized by comprising units of the general formula (1), units of general formula (2), and units of general formula (3) and/or units of general formula (4), wherein R, R?, R? and R?? are each hydrogen, methyl, or trifluoromethyl; R1 is hydrogen, C1-4 linear or branched alkyl, alkoxy, or C1-4 linear or branched fluoroalkyl; X is a C7-20 polycyclic aliphatic hydrocarbon group consisting of carbon atoms and hydrogen atoms; R2 and R3 are each independently C1-4 linear or branched alkyl; R4 is a C4-20 alicyclic hydrocarbon group; R5 is C1-4 linear or branched alkyl; and R6 and R7 are each hydrogen or C1-4 linear or branched alkyl.
    Type: Application
    Filed: August 4, 2004
    Publication date: November 22, 2007
    Inventors: Kouichi Fujiwara, Hiroshi Yamaguchi, Atsushi Nakamura
  • Publication number: 20060234154
    Abstract: A radiation-sensitive resin composition comprising an acid-labile group-containing resin obtained by living radical polymerization having a specific structure which is insoluble or scarcely soluble in alkali, but becomes alkali soluble by the action of an acid, and a photoacid generator, wherein the ratio of weight average molecular weight to number average molecular weight (weight average molecular weight/number average molecular weight) of the acid-labile group-containing resin is smaller than 1.5.
    Type: Application
    Filed: December 24, 2003
    Publication date: October 19, 2006
    Inventors: Isao Nishimura, Kouichi Fujiwara, Eiichi Kobayashi, Tsutomu Shimokawa, Atsushi Nakamura, Eiji Yoneda, Yong Wang
  • Publication number: 20060074139
    Abstract: An acrylic copolymer having a specific structure and a radiation-sensitive resin composition comprising the acrylic copolymer having high transparency to radiation, excelling in basic properties as a resist such as sensitivity, resolution, dry etching resistance, and pattern shape, and, in particular, excelling in forming contact holes and lines-and-spaces.
    Type: Application
    Filed: November 4, 2003
    Publication date: April 6, 2006
    Inventors: Hiroyuki Ishii, Kouichi Fujiwara, Hiroshi Yamaguchi, Yukio Nishimura
  • Patent number: 4586789
    Abstract: Electrode terminals provided on a liquid crystal display element for connection to an external drive circuit are arranged in two rows, and lead wires for exterior electrode terminals are collectively passed through space portions provided in the course of the row composed of interior electrode terminals.
    Type: Grant
    Filed: October 5, 1983
    Date of Patent: May 6, 1986
    Assignee: Hitachi, Ltd.
    Inventors: Munehisa Kishimoto, Noboru Sakata, Miyoshi Kimura, Kouichi Fujiwara, Hidekazu Komura