Patents by Inventor Yasutomo Kawanishi

Yasutomo Kawanishi 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: 7807329
    Abstract: A photosensitive composition comprises (A) a specific compound, which is excellent in sensitivity, resolution, and defocus latitude (DOF), and a pattern-forming method using the photosensitive composition is provided.
    Type: Grant
    Filed: March 13, 2006
    Date of Patent: October 5, 2010
    Assignee: FUJIFILM Corporation
    Inventors: Kazuyoshi Mizutani, Yasutomo Kawanishi
  • Patent number: 7718344
    Abstract: A resist composition, includes: (B) a polymer having a group capable of decomposing under an action of an acid and having a weight average molecular weight of 1,000 to 5,000, of which solubility in an alkali developer increases under an action of an acid; and (Z) a compound containing a sulfonium cation having a structure represented by formula (Z-1): wherein Y1 to Y13 each independently represents a hydrogen atom or a substituent, and adjacent members of Y1 to Y13 may combine with each other to form a ring; and Z represents a single bond or a divalent linking group.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: May 18, 2010
    Assignee: FUJIFILM Corporation
    Inventors: Sou Kamimura, Kenji Wada, Yasutomo Kawanishi
  • Patent number: 7615330
    Abstract: A positive resist composition containing a compound including a sulfonium cation having a structure represented by the formula (Z-I) as defined herein, a low molecular weight compound which increases solubility in an alkali developing solution by an action of an acid, and a compound which generates a compound having a structure represented by the formula (A-I) as defined herein upon irradiation of an actinic ray or a radiation.
    Type: Grant
    Filed: March 26, 2007
    Date of Patent: November 10, 2009
    Assignee: FUJIFILM Corporation
    Inventors: Sou Kamimura, Tomoya Sasaki, Yasutomo Kawanishi, Kenji Wada
  • Patent number: 7541131
    Abstract: The invention provides a resist composition for use in the production process of a semiconductor such as IC, in the production of a circuit substrate of liquid crystal, thermal head and the like or in other photofabrication processes, a compound for use in the resist composition and a pattern forming method using the resist composition, which are a resist composition comprising (A) a sulfonium salt represented by the following formula (I); and a pattern forming method using the resist composition: wherein R1 represents an alkyl group or an aryl group, R2 to R9 each independently represents a hydrogen atom or a substituent and may combine with each other to form a ring, Z represents an electron-withdrawing divalent linking group, Xn? represents an n-valent anion, n represents an integer of 1 to 3, and m represents the number of anions necessary for neutralizing the electric charge.
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: June 2, 2009
    Assignee: FUJIFILM Corporation
    Inventor: Yasutomo Kawanishi
  • Publication number: 20090047598
    Abstract: A positive resist composition for electron beam, X-ray or EUV includes (A) a compound represented by the following formula (I), and (B) a resin capable of decomposing by the action of an acid to increase solubility in an alkali developing solution, which includes a repeating unit represented by the following formula (II) and a repeating unit represented by the following formula (III):
    Type: Application
    Filed: August 1, 2008
    Publication date: February 19, 2009
    Applicant: FUJIFILM CORPORATION
    Inventors: Katsuhiro YAMASHITA, Yasutomo KAWANISHI
  • Publication number: 20090042124
    Abstract: A resist composition includes (A) a compound represented by the following formula (I): wherein each of R1 to R13 independently represents a hydrogen atom or a substituent, provided that at least one of R1 to R13 is a substituent containing an alcoholic hydroxyl group; Z represents a single bond or a divalent linking group; and X? represents an anion containing a proton acceptor functional group.
    Type: Application
    Filed: August 1, 2008
    Publication date: February 12, 2009
    Applicant: FUJIFILM CORPORATION
    Inventors: Sou KAMIMURA, Yasutomo KAWANISHI, Kenji WADA, Tomotaka TSUCHIMURA
  • Publication number: 20080085468
    Abstract: A resist composition, includes: (B) a polymer having a group capable of decomposing under an action of an acid and having a weight average molecular weight of 1,000 to 5,000, of which solubility in an alkali developer increases under an action of an acid; and (Z) a compound containing a sulfonium cation having a structure represented by formula (Z-1): wherein Y1 to Y13 each independently represents a hydrogen atom or a substituent, and adjacent members of Y1 to Y13 may combine with each other to form a ring; and Z represents a single bond or a divalent linking group.
    Type: Application
    Filed: September 28, 2007
    Publication date: April 10, 2008
    Applicant: FUJIFILM CORPORATION
    Inventors: Sou KAMIMURA, Kenji WADA, Yasutomo KAWANISHI
  • Publication number: 20080081288
    Abstract: A photosensitive composition includes (A) a compound represented by the following formula (I): wherein R1 to R13 each independently represents a hydrogen atom or a substituent, Z represents a single bond or a divalent linking group, and X? represents an anion containing a proton acceptor functional group.
    Type: Application
    Filed: September 19, 2007
    Publication date: April 3, 2008
    Applicant: FUJIFILM CORPORATION
    Inventors: Yasutomo Kawanishi, Kenji Wada
  • Publication number: 20070224540
    Abstract: A positive resist composition containing a compound including a sulfonium cation having a structure represented by the formula (Z-I) as defined herein, a low molecular weight compound which increases solubility in an alkali developing solution by an action of an acid, and a compound which generates a compound having a structure represented by the formula (A-I) as defined herein upon irradiation of an actinic ray or a radiation.
    Type: Application
    Filed: March 26, 2007
    Publication date: September 27, 2007
    Applicant: FUJIFILM Corporation
    Inventors: Sou Kamimura, Tomoya Sasaki, Yasutomo Kawanishi, Kenji Wada
  • Publication number: 20070197677
    Abstract: A sulfonium salt is provided that has a cation represented by Formula (II) (R1? to R13? in Formula (II) independently denote a hydrogen atom or a substituent, and may be bonded to each other to form a ring, provided that at least one of R1? to R8? denotes a halogen atom or a haloalkyl group). There are also provided a curable composition that includes the sulfonium salt, and an ink composition that includes the curabie composition. Furthermore, there are also provided an inkjet recording method employing the ink composition, and a process for producing a lithographic printing plate, the process including discharging the ink composition onto a hydrophilic support. A printed material and a lithographic printing plate thus obtained are also included in the present invention.
    Type: Application
    Filed: January 30, 2007
    Publication date: August 23, 2007
    Applicant: FUJIFILM Corporation
    Inventors: Tomotaka Tsuchimura, Yasutomo Kawanishi
  • Publication number: 20070184384
    Abstract: A photosensitive composition, which comprises a compound represented by formula (I): wherein R1 to R13 each independently represents a hydrogen atom or a substituent, and at least one of R1 to R13 is a substituent containing an alcoholic hydroxyl group; Z represents a single bond or a divalent linking group; and X? represents a counter anion; and a pattern-forming method using the photosensitive composition.
    Type: Application
    Filed: February 7, 2007
    Publication date: August 9, 2007
    Applicant: FUJIFILM Corporation
    Inventor: Yasutomo Kawanishi
  • Publication number: 20070072117
    Abstract: A positive resist composition comprising: a compound having at least two acid-decomposable groups, an aromatic ring and an alkylene or cycloalkylene chain and having a molecular weight of 2,000 or less, of which solubility in an alkali developer increases under an action of an acid; and a compound represented by the formula (B-1) as defined herein, which generates an acid upon irradiation with actinic rays or radiation.
    Type: Application
    Filed: September 25, 2006
    Publication date: March 29, 2007
    Inventors: Kazuyoshi Mizutani, Yasutomo Kawanishi
  • Patent number: 7179586
    Abstract: A high-sensitivity silver halide photographic light-sensitive material is provided, which is a silver halide photographic light-sensitive material, in which a dye chromophore is adsorbed in multiple layers on the surface of a silver halide grain and at least one of the dye chromophore-containing compounds satisfies: a specific condition relating to the aggregation property, hydrophilicity/hydrophobicity or J-aggregation property; or a specific structure.
    Type: Grant
    Filed: February 27, 2004
    Date of Patent: February 20, 2007
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takanori Hioki, Katsumi Kobayashi, Ryo Suzuki, Yasutomo Kawanishi, Takeshi Suzumoto
  • Publication number: 20060210919
    Abstract: A photosensitive composition comprises (A) a specific compound, which is excellent in sensitivity, resolution, and defocus latitude (DOF), and a pattern-forming method using the photosensitive composition is provided.
    Type: Application
    Filed: March 13, 2006
    Publication date: September 21, 2006
    Inventors: Kazuyoshi Mizutani, Yasutomo Kawanishi
  • Publication number: 20060194147
    Abstract: The invention provides a resist composition for use in the production process of a semiconductor such as IC, in the production of a circuit substrate of liquid crystal, thermal head and the like or in other photofabrication processes, a compound for use in the resist composition and a pattern forming method using the resist composition, which are a resist composition comprising (A) a sulfonium salt represented by the following formula (I); and a pattern forming method using the resist composition: wherein R1 represents an alkyl group or an aryl group, R2 to R9 each independently represents a hydrogen atom or a substituent and may combine with each other to form a ring, Z represents an electron-withdrawing divalent linking group, Xn? represents an n-valent anion, n represents an integer of 1 to 3, and m represents the number of anions necessary for neutralizing the electric charge.
    Type: Application
    Filed: February 17, 2006
    Publication date: August 31, 2006
    Inventor: Yasutomo Kawanishi
  • Publication number: 20040259043
    Abstract: A high-sensitivity silver halide photographic light-sensitive material is provided, which is a silver halide photographic light-sensitive material, in which a dye chromophore is adsorbed in multiple layers on the surface of a silver halide grain and at least one of the dye chromophore-containing compounds satisfies: a specific condition relating to the aggregation property, hydrophilicity/hydrophobicity or J-aggregation property; or a specific structure.
    Type: Application
    Filed: February 27, 2004
    Publication date: December 23, 2004
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Takanori Hioki, Katsumi Kobayashi, Ryo Suzuki, Yasutomo Kawanishi, Takeshi Suzumoto
  • Patent number: 6818374
    Abstract: Disclosed are a silver halide photographic light-sensitive material comprising silver halide containing a metal complex having a cyanide ligand in a silver halide emulsion layer and comprising a hydrazine compound having an onium group in the molecule, and a method of developing the silver halide photographic light-sensitive material with a developer having a pH of 9.0-11.0. The silver halide photographic light-sensitive material of the present invention can provide high sensitivity, high processing stability and high contrast images.
    Type: Grant
    Filed: March 21, 2003
    Date of Patent: November 16, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tokuju Oikawa, Tadashi Ito, Katsuyuki Watanabe, Mitsunori Hirano, Yasutomo Kawanishi
  • Publication number: 20030235792
    Abstract: Disclosed are a silver halide photographic light-sensitive material comprising silver halide containing a metal complex having a cyanide ligand in a silver halide emulsion layer and comprising a hydrazine compound having an onium group in the molecule, and a method of developing the silver halide photographic light-sensitive material with a developer having a pH of 9.0-11.0. The silver halide photographic light-sensitive material of the present invention can provide high sensitivity, high processing stability and high contrast images.
    Type: Application
    Filed: March 21, 2003
    Publication date: December 25, 2003
    Inventors: Tokuju Oikawa, Tadashi Ito, Katsuyuki Watanabe, Mitsunori Hirano, Yasutomo Kawanishi