Patents by Inventor Kota Nishino

Kota Nishino 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: 9703195
    Abstract: A radiation-sensitive resin composition contains: a polymer having a structural unit that includes a group represented by formula (1); a radiation-sensitive acid generator; and an organic solvent. In the formula (1), RP represents a hydrogen atom or a monovalent organic group, and * denotes a binding site to a rest of the structural unit other than the group represented by the formula (1). It is preferred that RP in the formula (1) represents a monovalent organic group, and the monovalent organic group is an acid-nonlabile group. It is also preferred that RP in the formula (1) represents a monovalent organic group, and the monovalent organic group is an acid-labile group.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: July 11, 2017
    Assignee: JSR CORPORATION
    Inventors: Hayato Namai, Kota Nishino
  • Publication number: 20150323866
    Abstract: A radiation-sensitive resin composition contains: a polymer having a structural unit that includes a group represented by formula (1); a radiation-sensitive acid generator; and an organic solvent. In the formula (1), RP represents a hydrogen atom or a monovalent organic group, and * denotes a binding site to a rest of the structural unit other than the group represented by the formula (1). It is preferred that RP in the formula (1) represents a monovalent organic group, and the monovalent organic group is an acid-nonlabile group. It is also preferred that RP in the formula (1) represents a monovalent organic group, and the monovalent organic group is an acid-labile group.
    Type: Application
    Filed: July 22, 2015
    Publication date: November 12, 2015
    Applicant: JSR CORPORATION
    Inventors: Hayato NAMAI, Kota NISHINO
  • Patent number: 8968980
    Abstract: A radiation-sensitive resin composition includes an acid-dissociable group-containing resin, and a compound shown by the following general formula (1). wherein Z? represents a monovalent anion shown by a general formula (2), M+ represents a monovalent onium cation, R1 represents a linear or branched alkyl group having 1 to 12 carbon atoms substituted or unsubstantiated with a fluorine atom, or a linear or branched alkoxy group having 1 to 12 carbon atoms, and n is 1 or 2.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: March 3, 2015
    Assignee: JSR Corporation
    Inventors: Ken Maruyama, Kota Nishino, Kazuki Kasahara, Hirokazu Sakakibara
  • Patent number: 8470513
    Abstract: A radiation-sensitive resin composition includes a polymer that includes at least one repeating unit (i) selected from a repeating unit shown by a formula (1), (2), and (3); and a repeating unit (ii) shown by a formula (4). R1 represents a hydrogen atom or a methyl group. Each R2 independently represents one of a linear or branched alkyl group having 1 to 12 carbon atoms, a linear or branched alkoxy group having 1 to 12 carbon atoms, and an alicyclic hydrocarbon group having 3 to 25 carbon atoms. p is an integer from 0 to 3, and q is an integer from 1 to 3, and p+q?5. A chemically-amplified positive-tone resist film that is sensitive to extreme ultraviolet rays (EUV) can be formed using the radiation-sensitive resin composition.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: June 25, 2013
    Assignee: JSR Corporation
    Inventors: Kota Nishino, Ken Maruyama, Daisuke Shimizu, Toshiyuki Kai
  • Publication number: 20120058429
    Abstract: A radiation-sensitive resin composition includes a polymer that includes at least one repeating unit (i) selected from a repeating unit shown by a formula (1), (2), and (3); and a repeating unit (ii) shown by a formula (4). R1 represents a hydrogen atom or a methyl group. Each R2 independently represents one of a linear or branched alkyl group having 1 to 12 carbon atoms, a linear or branched alkoxy group having 1 to 12 carbon atoms, and an alicyclic hydrocarbon group having 3 to 25 carbon atoms. p is an integer from 0 to 3, and q is an integer from 1 to 3, and p+q?5. A chemically-amplified positive-tone resist film that is sensitive to extreme ultraviolet rays (EUV) can be formed using the radiation-sensitive resin composition.
    Type: Application
    Filed: September 23, 2011
    Publication date: March 8, 2012
    Applicant: JSR CORPORATION
    Inventors: Kota Nishino, Ken Maruyama, Daisuke Shimizu, Toshiyuki Kai
  • Publication number: 20120045719
    Abstract: A radiation-sensitive resin composition includes an acid-dissociable group-containing resin, and a compound shown by the following general formula (1). wherein Z? represents a monovalent anion shown by a general formula (2), M+ represents a monovalent onium cation, R1 represents a linear or branched alkyl group having 1 to 12 carbon atoms substituted or unsubstantiated with a fluorine atom, or a linear or branched alkoxy group having 1 to 12 carbon atoms, and n is 1 or 2.
    Type: Application
    Filed: November 4, 2011
    Publication date: February 23, 2012
    Applicant: JSR Corporation
    Inventors: Ken Maruyama, Kota Nishino, Kazuki Kasahara, Hirokazu Sakakibara