Patents by Inventor Kyouhei SAKITA

Kyouhei SAKITA 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: 10108090
    Abstract: An object is to provide a photosensitive composition capable of obtaining a cured film having excellent reliability even when being heated at a low temperature and patterning by photolithography. A photosensitive composition of the present invention includes a polymerizable monomer having three or more (meth)acryloyl groups and one or more carboxy groups in a molecule as Component A, a polymerizable monomer having three or more (meth)acryloyl groups and not having a carboxy group in a molecule as Component B, a photopolymerization initiator as Component C, a solvent as Component D, a blocked isocyanate compound as Component N, and a polymerization inhibitor as Component K, in which a content of Component A is 10% to 50% by mass with respect to a total content of Component A and Component B.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: October 23, 2018
    Assignee: Fujifilm Corporation
    Inventors: Hiroyuki Yonezawa, Kyouhei Sakita
  • Publication number: 20170115564
    Abstract: An object is to provide a photosensitive composition capable of obtaining a cured film having excellent reliability even when being heated at a low temperature and patterning by photolithography. A photosensitive composition of the present invention includes a polymerizable monomer having three or more (meth)acryloyl groups and one or more carboxy groups in a molecule as Component A, a polymerizable monomer having three or more (meth)acryloyl groups and not having a carboxy group in a molecule as Component B, a photopolymerization initiator as Component C, a solvent as Component D, a blocked isocyanate compound as Component N, and a polymerization inhibitor as Component K, in which a content of Component A is 10% to 50% by mass with respect to a total content of Component A and Component B.
    Type: Application
    Filed: January 6, 2017
    Publication date: April 27, 2017
    Inventors: Hiroyuki YONEZAWA, Kyouhei SAKITA
  • Patent number: 9488911
    Abstract: There is provided a photosensitive composition containing a compound represented by Formula (I), and the Formula (I) is defined as herein, and chemical amplification resist composition containing the photosensitive composition, wherein the photosensitive composition further contains a compound capable of generating an acid upon irradiation with an actinic ray or radiation, and a chemical amplification resist composition containing the photosensitive composition, wherein the photosensitive composition further contains a compound capable of generating an acid upon irradiation with an actinic ray or radiation.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: November 8, 2016
    Assignee: FUJIFILM Corporation
    Inventors: Tomotaka Tsuchimura, Kyouhei Sakita
  • Patent number: 9441065
    Abstract: Provided is a curable composition for imprints having good patternability and dry etching resistance. Disclosed is a curable composition for imprints comprising a polymerizable monomer (Ax) having a substituent having an aromatic group and having a molecular weight of 100 or more, and a photopolymerization initiator.
    Type: Grant
    Filed: October 2, 2014
    Date of Patent: September 13, 2016
    Assignee: FUJIFILM Corporation
    Inventors: Kunihiko Kodama, Kyouhei Sakita, Hiroyuki Yonezawa
  • Publication number: 20160131976
    Abstract: Provided a resist composition for a semiconductor manufacturing process comprising (A) a compound expressed by General Formula (I) below: wherein, in General Formula (I) above, R1 represents an alkyl group, a cycloalkyl group, or an aryl group, R2 represents a univalent organic group, each of R3 to R6 represents a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group, or a halogen atom, R3 and R4, R4 and R5, or R5 and R6 may be bonded to each other to form an alicyclic ring or an aromatic ring, and X represents an oxygen atom or a sulfur atom.
    Type: Application
    Filed: January 14, 2016
    Publication date: May 12, 2016
    Applicant: FUJIFILM Corporation
    Inventors: Tomotaka TSUCHIMURA, Kyouhei SAKITA
  • Patent number: 9223211
    Abstract: Provided is a photosensitive resin composition having high sensitivity and storage stability.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: December 29, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Kyouhei Sakita, Shinji Fujimoto, Mikio Nakagawa, Kenta Yamazaki
  • Publication number: 20150362836
    Abstract: There is provided a photosensitive composition containing a compound represented by Formula (I), and the Formula (I) is defined as herein, and chemical amplification resist composition containing the photosensitive composition, wherein the photosensitive composition further contains a compound capable of generating an acid upon irradiation with an actinic ray or radiation, and a chemical amplification resist composition containing the photosensitive composition, wherein the photosensitive composition further contains a compound capable of generating an acid upon irradiation with an actinic ray or radiation.
    Type: Application
    Filed: August 20, 2015
    Publication date: December 17, 2015
    Inventors: TOMOTAKA TSUCHIMURA, KYOUHEI SAKITA
  • Publication number: 20150148546
    Abstract: Provided is a photosensitive resin composition having high sensitivity and storage stability.
    Type: Application
    Filed: January 28, 2015
    Publication date: May 28, 2015
    Applicant: FUJIFILM Corporation
    Inventors: Kyouhei SAKITA, Shinji FUJIMOTO, Mikio NAKAGAWA, Kenta YAMAZAKI
  • Patent number: 8999221
    Abstract: Provided is a curable composition for imprints having good patternability and dry etching resistance.
    Type: Grant
    Filed: December 24, 2013
    Date of Patent: April 7, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Kunihiko Kodama, Kyouhei Sakita, Hiroyuki Yonezawa
  • Publication number: 20150014894
    Abstract: Provided is a curable composition for imprints having good patternability and dry etching resistance. Disclosed is a curable composition for imprints comprising a polymerizable monomer (Ax) having a substituent having an aromatic group and having a molecular weight of 100 or more, and a photopolymerization initiator.
    Type: Application
    Filed: October 2, 2014
    Publication date: January 15, 2015
    Applicant: FUJIFILM CORPORATION
    Inventors: Kunihiko KODAMA, Kyouhei SAKITA, Hiroyuki YONEZAWA
  • Patent number: 8883065
    Abstract: Provided is a curable composition for imprints having good patternability and dry etching resistance. Disclosed is a curable composition for imprints comprising a polymerizable monomer (Ax) having a substituent having an aromatic group and having a molecular weight of 100 or more, and a photopolymerization initiator.
    Type: Grant
    Filed: December 2, 2009
    Date of Patent: November 11, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Kunihiko Kodama, Kyouhei Sakita, Hiroyuki Yonezawa
  • Patent number: 8728708
    Abstract: Disclosed is a photosensitive resin composition comprising: (Component A) an oxime sulfonate compound represented by Formula (1); (Component B) a resin comprising a constituent unit having an acid-decomposable group that is decomposed by an acid to form a carboxyl group or a phenolic hydroxy group; and (Component C) a solvent wherein in Formula (1) R1 denotes an alkyl group, an aryl group, or a heteroaryl group, each R2 independently denotes a hydrogen atom, an alkyl group, an aryl group, or a halogen atom, Ar1 denotes an o-arylene group or an o-heteroarylene group, X denotes O or S, and n denotes 1 or 2, provided that of two or more R2s present in the compound, at least one denotes an alkyl group, an aryl group, or a halogen atom.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: May 20, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Kyouhei Sakita, Wataru Kikuchi, Masatoshi Yumoto, Masanori Hikita
  • Publication number: 20140121292
    Abstract: Provided is a curable composition for imprints having good patternability and dry etching resistance.
    Type: Application
    Filed: December 24, 2013
    Publication date: May 1, 2014
    Applicant: FUJIFILM Corporation
    Inventors: Kunihiko KODAMA, Kyouhei SAKITA, Hiroyuki YONEZAWA
  • Publication number: 20110236595
    Abstract: Provided is a curable composition for imprints having good patternability and dry etching resistance. Disclosed is a curable composition for imprints comprising a polymerizable monomer (Ax) having a substituent having an aromatic group and having a molecular weight of 100 or more, and a photopolymerization initiator.
    Type: Application
    Filed: December 2, 2009
    Publication date: September 29, 2011
    Applicant: FUJIFILM CORPORATION
    Inventors: Kunihiko Kodama, Kyouhei Sakita, Hiroyuki Yonezawa
  • Publication number: 20100133728
    Abstract: A curable composition for photoimprints containing a photopolymerizable monomer and a photopolymerization initiator, wherein the proportion of the compound having a molecular weight of at most 190 in the composition is at most 20% by mass, and the viscosity of the composition is from 3 to 50 mPa·s at 25° C., is excellent in patterning accuracy.
    Type: Application
    Filed: December 2, 2009
    Publication date: June 3, 2010
    Applicant: FUJIFILM Corporation
    Inventors: Hiroyuki Yonezawa, Takashi Takayanagi, Kyouhei Sakita
  • Publication number: 20100121013
    Abstract: A curable composition for photoimprints, comprising a (meth)acrylate compound represented by the following formula (1): wherein R1 and R2 represent a hydrogen atom or a methyl group; X represents a single bond or an aliphatic group; n and m indicate an integer of 1 or more, has a low viscosity and a high transfer patterning accuracy and gives a cured film excellent in scratch resistance and adhesiveness.
    Type: Application
    Filed: November 5, 2009
    Publication date: May 13, 2010
    Applicant: FUJIFILM Corporation
    Inventors: Kyouhei SAKITA, Hiroyuki Yonezawa