Patents by Inventor Naotsugu Muro

Naotsugu Muro 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).

  • Publication number: 20200393757
    Abstract: Provided are a photosensitive composition used for forming a negative tone pattern by development with a developer including an organic solvent, the photosensitive composition including a coloring material, a resin having solubility which decreases in the organic solvent due to an action of acid, and a photoacid generator; a film formed of the photosensitive composition; a method of forming a pattern; a color filter; a solid-state imaging element; and an image display device.
    Type: Application
    Filed: August 26, 2020
    Publication date: December 17, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Kazuto Shimada, Naotsugu Muro
  • Publication number: 20200263037
    Abstract: A coloring composition includes a metal azo pigment, a polymerizable compound, and a solvent, the metal azo pigment includes at least one kind of an anion selected from an azo compound represented by Formula (I) or an azo compound having a tautomeric structure of the azo compound represented by Formula (I), two or more kinds of metal ions, and a melamine compound, and in Formula (I), R1 and R2 each independently represent OH or NR5R6, R3 and R4 each independently represent ?O or ?NR7, and R5 to R7 each independently represent a hydrogen atom or an alkyl group.
    Type: Application
    Filed: March 31, 2020
    Publication date: August 20, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Hirotaka TAKISHITA, Kazuya OTA, Naotsugu MURO, Haruki INABE
  • Patent number: 10641935
    Abstract: Provided are a coloring composition capable of producing a film having fewer defects generated, and the like even in a case where the coloring composition is stored for a long period of time in an environment with variations in temperature, a color filter, a pattern forming method, a solid-state imaging device, and an image display device. The coloring composition includes a heterocycle-containing coloring agent such as a compound represented by Formula (1), a phthalimide compound, a solvent, and a resin. In Formula (1), R1 to R13 each independently represent a hydrogen atom or a substituent, and adjacent groups of R1 to R8 may be bonded to each other to form a ring, provided that at least one of the pairs of adjacent two groups of R1 to R8 is bonded to each other to form an aromatic ring.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: May 5, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Naotsugu Muro, Seongmu Bak, Akiko Yoshii, Yoshinori Taguchi, Yousuke Murakami
  • Patent number: 10634997
    Abstract: Provided is a coloring composition capable of producing a cured film having suppressed color unevenness even in a case where the coloring composition is used after being stored for a long period of time. In addition, provided are a color filter, a pattern forming method, a solid-state imaging device, and an image display device. The coloring composition includes a halogenated zinc phthalocyanine pigment, a maleimide compound, a curable compound other than the maleimide compound, and a solvent, in which the molecular weight of the maleimide compound is 100 to 400, and the content of the maleimide compound is 0.08 to 0.8 parts by mass with respect to 100 parts by mass of the halogenated zinc phthalocyanine pigment.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: April 28, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Seongmu Bak, Naotsugu Muro, Yoshinori Taguchi, Akiko Yoshii, Yousuke Murakami
  • Patent number: 10435794
    Abstract: There is provided an etching method of a semiconductor substrate that includes a first layer containing germanium (Ge) and a second layer containing at least one specific metal element selected from nickel platinum (NiPt), titanium (Ti), nickel (Ni), and cobalt (Co), the method including: bringing an etching solution which contains a non-halogen acidic compound into contact with the second layer and selectively removing the second layer.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: October 8, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Naotsugu Muro, Tetsuya Kamimura, Satomi Takahashi, Akiko Koyama, Atsushi Mizutani
  • Patent number: 10409158
    Abstract: Provided are a coloring composition having improved heat resistance; and a cured film, a color filter, a method for producing a color filter, and a solid-state imaging element and an image display device, each of which uses the coloring composition. The coloring composition includes a dye (A) represented by the following General Formula (I) and a polymerizable compound (B). General Formula (I) is (R)m-Q-(D)n, wherein Q represents an (m+n)-valent linking group, R represents a substituent, D represents a dye residue, m represents an integer of 0 to 6, n represents an integer of 2 to 8, and (m+n) represents an integer of 2 to 8. In the case where m is 2 or more, a plurality of R's may be different from each other, and in the case where n is 2 or more, a plurality of D's may be different from each other.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: September 10, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Akihiro Hara, Tetsuya Watanabe, Yuushi Kaneko, Suguru Samejima, Junichi Ito, Naotsugu Muro, Kazuya Oota, Yoshinori Taguchi
  • Publication number: 20180348630
    Abstract: Provided are a curable coloring composition which is suitable for the production of a cured film in cyan color, having good moisture resistance, a color filter, an image sensor, and a method for producing a cured film. The curable coloring composition includes a coloring agent including a phthalocyanine pigment having Al as a central metal, a basic pigment derivative, and a curable compound, in which the coloring agent includes 80% by mass or more of the phthalocyanine pigments, and the content of the phthalocyanine pigment having Al as a central metal among the phthalocyanine pigments is 30% by mass or more.
    Type: Application
    Filed: August 8, 2018
    Publication date: December 6, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Yoshinori TAGUCHI, Naotsugu MURO, Yousuke MURAKAMI, Seongmu BAK, Akiko YOSHII
  • Publication number: 20180329295
    Abstract: Provided is a coloring composition capable of producing a cured film having suppressed color unevenness even in a case where the coloring composition is used after being stored for a long period of time. In addition, provided are a color filter, a pattern forming method, a solid-state imaging device, and an image display device. The coloring composition includes a halogenated zinc phthalocyanine pigment, a maleimide compound, a curable compound other than the maleimide compound, and a solvent, in which the molecular weight of the maleimide compound is 100 to 400, and the content of the maleimide compound is 0.08 to 0.8 parts by mass with respect to 100 parts by mass of the halogenated zinc phthalocyanine pigment.
    Type: Application
    Filed: July 24, 2018
    Publication date: November 15, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Seongmu BAK, Naotsugu MURO, Yoshinori TAGUCHI, Akiko YOSHII, Yousuke MURAKAMI
  • Publication number: 20180252852
    Abstract: Provided are a coloring composition capable of producing a film having fewer defects generated, and the like even in a case where the coloring composition is stored for a long period of time in an environment with variations in temperature, a color filter, a pattern forming method, a solid-state imaging device, and an image display device. The coloring composition includes a heterocycle-containing coloring agent such as a compound represented by Formula (1), a phthalimide compound, a solvent, and a resin. In Formula (1), R1 to R13 each independently represent a hydrogen atom or a substituent, and adjacent groups of R1 to R8 may be bonded to each other to form a ring, provided that at least one of the pairs of adjacent two groups of R1 to R8 is bonded to each other to form an aromatic ring.
    Type: Application
    Filed: May 3, 2018
    Publication date: September 6, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Naotsugu MURO, Seongmu BAK, Akiko YOSHII, Yoshinori TAGUCHI, Yousuke MURAKAMI
  • Patent number: 9664827
    Abstract: The invention is directed to a colored composition for forming a green color filter, containing a color pigment, wherein a content of the color pigment to a total solid content of the colored composition is 60% by weight or more, and a layer having a thickness of 0.6 ?m formed from the colored composition has light transmittance of 80% or more at a wavelength of 550 nm and light transmittance of 50% or less at a wavelength of 450 nm, and a method of producing a color filter including (A) forming a first colored layer containing a first colored composition and (B) patterning with dry etching so as to from a through-hole group in the first colored layer, wherein the first colored composition is the colored composition as defined herein.
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: May 30, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Naotsugu Muro, Yasuo Sugishima, Kaoru Aoyagi, Mitsuji Yoshibayashi
  • Patent number: 9632222
    Abstract: This disclosure relates to a method for manufacturing a color filter being capable of suppressing a surface of a colored pattern from being rough in a planarization treatment, a color filter and a solid-state imaging device.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: April 25, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Yasuo Sugishima, Mitsuji Yoshibayashi, Kaoru Aoyagi, Yushi Kaneko, Naotsugu Muro
  • Patent number: 9618665
    Abstract: Provided are a colored composition which enables the formation of a pattern having excellent heat resistance and excellent solubility in solvents and has inhibited color migration; and a cured film, a color filter, a method for producing a color filter, a solid-state image sensor, and an image display device, each of which uses the colored composition. The colored composition includes a polymer anion having a repeating unit containing a weakly nucleophilic anionic structure, and a dye having a cationic structure, in which the weakly nucleophilic anionic structure represents an anionic structure produced by dissociating an organic acid having a lower pKa value than the pKa value of sulfuric acid.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: April 11, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Junichi Ito, Tetsuya Watanabe, Yuushi Kaneko, Suguru Samejima, Kazuya Oota, Yoshinori Taguchi, Naotsugu Muro
  • Patent number: 9605101
    Abstract: Provided is a pigment multimer whereby a pattern can be appropriately formed during formation of a pattern. Further, provided are a coloring composition using the pigment multimer; and a cured film, a color filter, a method for manufacturing a color filter, a solid-state imaging element, and an image display device, each of which uses the coloring composition. The pigment multimer (A) has a non-nucleophilic counter anion.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: March 28, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Yuushi Kaneko, Tetsuya Watanabe, Suguru Samejima, Junichi Ito, Naotsugu Muro, Yoshinori Taguchi, Kazuya Oota
  • Patent number: 9558953
    Abstract: An etching method, having the step of applying an etching liquid onto a TiN-containing layer in a semiconductor substrate thereby etching the TiN-containing layer, the etching liquid comprising water, and a basic compound and an oxidizing agent in water thereof to be within the range of pH from 8.5 to 14, and the TiN-containing layer having a surface oxygen content from 0.1 mol % to 10 mol %.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: January 31, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Naotsugu Muro, Tetsuya Kamimura, Tadashi Inaba, Takahiro Watanabe, Kee Young Park
  • Patent number: 9548217
    Abstract: An etching method containing, at the time of processing a substrate having a first layer containing titanium nitride (TiN) and a second layer containing a transition metal, selecting a substrate in which a surface oxygen content of the first layer is from 0.1 to 10% by mole, and applying an etching liquid containing a hydrofluoric acid compound and an oxidizing agent to the substrate and thereby removing the first layer.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: January 17, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Naotsugu Muro, Tetsuya Kamimura, Tadashi Inaba, Atsushi Mizutani
  • Patent number: 9465142
    Abstract: Provided is a near-infrared absorptive compositions capable of reducing unevenness in the coated surface profile and variation in near-infrared absorptive ability when the near-infrared absorptive compositions are formed into films. The near-infrared absorptive composition comprises a copper complex and a solvent, wherein the near-infrared absorptive composition has a solid content of 10 to 90% by mass and the solvent has a boiling point of 90 to 200° C.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: October 11, 2016
    Assignee: FUJIFILM Corporation
    Inventors: Naotsugu Muro, Hideki Takakuwa, Seongmu Bak
  • Patent number: 9442231
    Abstract: Provided are a colored composition which can maintain good light fastness even when placed under an environment having a low oxygen concentration for a long period of time, a cured film, a color filter, a method for producing a color filter, a solid-state image sensor, and an image display device. The colored composition includes a dye multimer (A) and a solvent (B), in which the dye multimer (A) has a partial structure derived from a xanthene dye having a cationic moiety, and also has an anionic moiety, and the content of water in the colored composition is 0.01% by mass to 3.0% by mass.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: September 13, 2016
    Assignee: FUJIFILM Corporation
    Inventors: Naotsugu Muro, Kazuya Oota, Yoshinori Taguchi, Tetsuya Watanabe, Yuushi Kaneko, Junichi Ito, Suguru Samejima
  • Patent number: 9442373
    Abstract: The invention is directed to a colored composition containing a coloring agent and a resin, wherein a content of the coloring agent to a total solid content of the colored composition is 50% by weight or more and a solid content acid value of the resin is more than 80 mg KOH/g, and a method of producing a color filter including forming a first colored layer containing a first colored composition and patterning with dry etching so as to from a through-hole group in the first colored layer, wherein the first colored composition is the colored composition as defined herein.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: September 13, 2016
    Assignee: FUJIFILM Corporation
    Inventors: Kaoru Aoyagi, Naotsugu Muro, Mitsuji Yoshibayashi, Yushi Kaneko, Yasuo Sugishima
  • Publication number: 20160146987
    Abstract: Provided are a colored composition which enables the formation of a pattern having excellent heat resistance and excellent solubility in solvents and has inhibited color migration; and a cured film, a color filter, a method for producing a color filter, a solid-state image sensor, and an image display device, each of which uses the colored composition. The colored composition includes a polymer anion having a repeating unit containing a weakly nucleophilic anionic structure, and a dye having a cationic structure, in which the weakly nucleophilic anionic structure represents an anionic structure produced by dissociating an organic acid having a lower pKa value than the pKa value of sulfuric acid.
    Type: Application
    Filed: January 29, 2016
    Publication date: May 26, 2016
    Applicant: FUJIFILM Corporation
    Inventors: Junichi ITO, Tetsuya WATANABE, Yuushi KANEKO, Suguru SAMEJIMA, Kazuya OOTA, Yoshinori TAGUCHI, Naotsugu MURO
  • Publication number: 20160146986
    Abstract: Provided are a colored composition which can maintain good light fastness even when placed under an environment having a low oxygen concentration for a long period of time, a cured film, a color filter, a method for producing a color filter, a solid-state image sensor, and an image display device. The colored composition includes a dye multimer (A) and a solvent (B), in which the dye multimer (A) has a partial structure derived from a xanthene dye having a cationic moiety, and also has an anionic moiety, and the content of water in the colored composition is 0.01% by mass to 3.0% by mass.
    Type: Application
    Filed: January 29, 2016
    Publication date: May 26, 2016
    Applicant: FUJIFILM Corporation
    Inventors: Naotsugu MURO, Kazuya OOTA, Yoshinori TAGUCHI, Tetsuya WATANABE, Yuushi KANEKO, Junichi ITO, Suguru SAMEJIMA