Patents by Inventor Yuki Nara
Yuki Nara 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).
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Publication number: 20240295813Abstract: A photosensitive composition for exposure to light having a wavelength of 300 nm or shorter, the photosensitive composition including: a coloring material; and a polymerizable monomer, in which the total content of the polymerizable monomer and a photopolymerization initiator is 15 mass % or lower with respect to the total solids content of the photosensitive composition.Type: ApplicationFiled: March 26, 2024Publication date: September 5, 2024Applicant: FUJIFILM CorporationInventors: Takahiro OKAWARA, Yuki NARA, Shoichi NAKAMURA, Mitsuji YOSHIBAYASHI
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Patent number: 11953831Abstract: Provided are a photosensitive composition for pulse exposure including: a coloring material A; a photoradical polymerization initiator B; and a radically polymerizable compound C, in which a content of a radically polymerizable compound C1 having a weight-average molecular weight of 3000 or higher is 70 mass % or higher with respect to a total mass of the radically polymerizable compound C.Type: GrantFiled: August 26, 2020Date of Patent: April 9, 2024Assignee: FUJIFILM CorporationInventors: Shoichi Nakamura, Takahiro Okawara, Yuki Nara
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Publication number: 20220064444Abstract: Provided are a resin composition including a coloring material, a resin, and a solvent, in which, in a case where a film having a thickness of 0.60 ?m is formed by heating the resin composition at 200° C. for 30 minutes, a rate of change ?A in an absorbance of the film after performing a heating treatment of the film at 300° C. for 5 hours in a nitrogen atmosphere, which is represented by Expression (1), is 50% or less; a film formed of the resin composition; a color filter; a solid-state imaging element; and an image display device. In the following expression, ?A is the rate of change in the absorbance of the film after the heating treatment, A1 is a maximum value of an absorbance of the film before the heating treatment in a wavelength range of 400 to 1100 nm, and A2 is an absorbance of the film after the heating treatment, and is an absorbance at a wavelength showing the maximum value of the absorbance of the film before the heating treatment in a wavelength range of 400 to 1100 nm.Type: ApplicationFiled: November 9, 2021Publication date: March 3, 2022Applicant: FUJIFILM CorporationInventor: Yuki NARA
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Publication number: 20220057711Abstract: Provided are a resin composition including a coloring material, a resin, and a solvent, in which, in a case where a film having a thickness of 0.60 ?m is formed by heating the resin composition at 200° C. for 30 minutes, a thickness of the film after performing a heating treatment of the film at 300° C. for 5 hours in a nitrogen atmosphere is 70% or more of a thickness of the film before the heating treatment; a film formed of the resin composition; a color filter; a solid-state imaging element; and an image display device.Type: ApplicationFiled: November 1, 2021Publication date: February 24, 2022Applicant: FUJIFILM CorporationInventor: Yuki NARA
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Publication number: 20220043344Abstract: Provided are a photosensitive resin composition including a colorant, a resin, a polymerizable compound, a photopolymerization initiator, an ultraviolet absorber, and a solvent, in which the colorant includes at least one phthalocyanine pigment selected from Color Index Pigment Blue 15:3 or Color Index Pigment Blue 15:4, and includes 50 mass % or more of the phthalocyanine pigment, and the ultraviolet absorber is contained in an amount of 0.1 to 10 mass % in a total solid content of the photosensitive resin composition; a cured film using the photosensitive resin composition; a color filter; a solid-state imaging element; and an image display device.Type: ApplicationFiled: October 15, 2021Publication date: February 10, 2022Applicant: FUJIFILM CorporationInventor: Yuki NARA
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Publication number: 20210132496Abstract: Provided are a radiation-sensitive resin composition having good sensitivity and excellent temporal stability of the sensitivity, a cured film, a pattern forming method, a solid-state imaging device, and an image display device. The radiation-sensitive resin composition includes a resin, a polymerizable compound having an ethylenically unsaturated bond, a photopolymerization initiator, an organic solvent, and water, in which the photopolymerization initiator includes an oxime ester compound having at least one group selected from a branched alkyl group and a cyclic alkyl group, and the content of water is 0.1% to 2% by mass with respect to the mass of the radiation-sensitive resin composition.Type: ApplicationFiled: January 7, 2021Publication date: May 6, 2021Applicant: FUJIFILM CorporationInventors: Yuki NARA, Kaoru AOYAGI
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Patent number: 10921708Abstract: Provided are a radiation-sensitive resin composition having good sensitivity and excellent temporal stability of the sensitivity, a cured film, a pattern forming method, a solid-state imaging device, and an image display device. The radiation-sensitive resin composition includes a resin, a polymerizable compound having an ethylenically unsaturated bond, a photopolymerization initiator, an organic solvent, and water, in which the photopolymerization initiator includes an oxime ester compound having at least one group selected from a branched alkyl group and a cyclic alkyl group, and the content of water is 0.1% to 2% by mass with respect to the mass of the radiation-sensitive resin composition.Type: GrantFiled: May 25, 2018Date of Patent: February 16, 2021Assignee: FUJIFILM CorporationInventors: Yuki Nara, Kaoru Aoyagi
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Publication number: 20210026240Abstract: A method of producing a pattern includes a step of forming a photocurable composition layer on a support, using a photocurable composition including a color material and a resin and having an acid value of a solid content of 1 to 25 mgKOH/g; a step of patternwise exposing the photocurable composition layer; and a step of treating the photocurable composition layer in an unexposed area using a developer including an organic solvent, thereby performing development.Type: ApplicationFiled: September 16, 2020Publication date: January 28, 2021Applicant: FUJIFILM CorporationInventors: Takahiro OKAWARA, Shuichiro OSADA, Yuki NARA, Shoichi NAKAMURA
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Publication number: 20200392344Abstract: Provided is a photosensitive composition including a radically polymerizable compound, a photoradical polymerization initiator, and at least one selected from a chain transfer agent or a radical trapping agent.Type: ApplicationFiled: August 28, 2020Publication date: December 17, 2020Applicant: FUJIFILM CorporationInventors: Yuki NARA, Takahiro Okawara
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Publication number: 20200393759Abstract: Provided are a photosensitive composition for pulse exposure including: a coloring material A; a photoradical polymerization initiator B; and a radically polymerizable compound C, in which a content of a radically polymerizable compound C1 having a weight-average molecular weight of 3000 or higher is 70 mass % or higher with respect to a total mass of the radically polymerizable compound C.Type: ApplicationFiled: August 26, 2020Publication date: December 17, 2020Applicant: FUJIFILM CorporationInventors: Shoichi NAKAMURA, Takahiro OKAWARA, Yuki NARA
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Publication number: 20200341375Abstract: Provided is a photosensitive composition for exposure to light having a wavelength of 300 nm or shorter, the photosensitive composition including: a coloring material; and a polymerizable monomer, in which a total content of the polymerizable monomer and a photopolymerization initiator is 15 mass % or lower with respect to a total solid content of the photosensitive composition.Type: ApplicationFiled: July 9, 2020Publication date: October 29, 2020Applicant: FUJIFILM CorporationInventors: Takahiro OKAWARA, Yuki NARA, Shoichi NAKAMURA, Mitsuji YOSHIBAYASHI
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Publication number: 20200341374Abstract: Provided is a photosensitive composition for pulse exposure including: a coloring material A; a photoinitiator B; and a compound C that is cured by reacting with an active species generated from the photoinitiator B, in which the photoinitiator B includes a photoinitiator b1 that satisfies the following condition 1. Condition 1: after a propylene glycol monomethyl ether acetate solution including 0.035 mmol/L of the photoinitiator b1 is exposed to pulses of light having a wavelength of 355 nm under conditions of maximum instantaneous illuminance: 375000000 W/m2, pulse duration: 8 nanoseconds, and frequency: 10 Hz, a quantum yield q355 is 0.05 or higher.Type: ApplicationFiled: July 8, 2020Publication date: October 29, 2020Applicant: FUJIFILM CorporationInventors: Takahiro OKAWARA, Yuki Nara, Shoichi Nakamura, Mitsuji Yoshibayashi
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Publication number: 20200225576Abstract: Provided is a photosensitive coloring composition with which a pixel having excellent adhesiveness with a support and excellent rectangularity can be formed. In addition, provided is also a method of manufacturing an optical filter including a pixel having excellent adhesiveness with a support and excellent rectangularity. This photosensitive coloring composition is a photosensitive coloring composition for exposure to light having a wavelength of 300 nm or shorter, the photosensitive coloring composition including a coloring material and a curable compound. In a case where a film having a thickness of 0.5 ?m after drying is formed using the photosensitive coloring composition, an optical density of the above-described film with respect to light having a wavelength of 248 nm is 1.6 or higher. It is preferable that a content of the coloring material is 50 mass % or higher with respect to a total solid content of the photosensitive coloring composition.Type: ApplicationFiled: March 23, 2020Publication date: July 16, 2020Applicant: FUJIFILM CorporationInventors: Takahiro OKAWARA, Yuki NARA
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Publication number: 20200218151Abstract: Provided is a method of manufacturing an optical filter in which a pixel having excellent rectangularity can be accurately formed in a region that is partitioned by a partition wall or at a position corresponding to the region partitioned by the partition wall.Type: ApplicationFiled: March 23, 2020Publication date: July 9, 2020Applicant: FUJIFILM CorporationInventors: Yuki NARA, Takahiro OKAWARA
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Publication number: 20200148888Abstract: Provided is a composition with which a film having a lower refractive index and reduced defects can be formed. In addition, provided are a film forming method and a method of manufacturing an optical sensor. This composition includes colloidal silica particles and a solvent. In the colloidal silica particles, an average particle size D1 that is measured using a dynamic light scattering method is 25 to 1000 nm and a ratio D1/D2 of the average particle size D1 to an average particle size D2 that is obtained from a specific surface area of the colloidal silica particles measured using a nitrogen adsorption method is 3 or higher. The solvent includes a solvent A1 having a boiling point of 245° C. or higher and a solubility parameter of lower than 11.3 (cal/cm3)0.5 and a solvent A2 having a boiling point of 120° C. or higher and lower than 245° C. and a solubility parameter of 11.3 (cal/cm3)0.5 or higher.Type: ApplicationFiled: January 16, 2020Publication date: May 14, 2020Applicant: FUJIFILM CorporationInventors: Takahiro OKAWARA, Yuki NARA
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Publication number: 20180275514Abstract: Provided are a radiation-sensitive resin composition having good sensitivity and excellent temporal stability of the sensitivity, a cured film, a pattern forming method, a solid-state imaging device, and an image display device. The radiation-sensitive resin composition includes a resin, a polymerizable compound having an ethylenically unsaturated bond, a photopolymerization initiator, an organic solvent, and water, in which the photopolymerization initiator includes an oxime ester compound having at least one group selected from a branched alkyl group and a cyclic alkyl group, and the content of water is 0.1% to 2% by mass with respect to the mass of the radiation-sensitive resin composition.Type: ApplicationFiled: May 25, 2018Publication date: September 27, 2018Applicant: FUJIFILM CorporationInventors: Yuki NARA, Kaoru AOYAGI
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Patent number: 9657182Abstract: There is provided a curable resin composition which is capable of being coated so as to have a film thickness of 20 ?m or more and contains a dye having a maximum absorption wavelength in a wavelength range from 600 to 850 nm, and the infrared ray cut filter having a dye-containing layer having a film thickness of 20 ?m or more formed from the curable resin composition, and a production method of image sensor chip comprising a step of coating the curable resin composition on a glass substrate to form a dye-containing layer, and a step of adhering the glass plate having the dye-containing layer formed on a solid-state imaging device substrate.Type: GrantFiled: May 29, 2015Date of Patent: May 23, 2017Assignee: FUJIFILM CorporationInventors: Toshihide Ezoe, Yuki Nara, Kazuto Shimada
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Patent number: 9618666Abstract: An object of the present invention is to provide a near-infrared-absorbing composition capable of forming a cured film having excellent heat resistance while maintaining strong near-infrared shielding properties when a cured film is produced. The near-infrared-absorbing composition of the present invention includes a copper complex obtained by reacting two or more kinds of sulfonic acids represented by General Formula (I) described below or salts thereof with a copper component and a solvent.Type: GrantFiled: June 29, 2015Date of Patent: April 11, 2017Assignee: FUJIFILM CorporationInventors: Takashi Kawashima, Seiichi Hitomi, Hidenori Takahashi, Yuki Nara, Seongmu Bak
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Publication number: 20160116653Abstract: Provided are an infrared-light-blocking composition capable of forming an infrared-light-blocking layer having excellent light-transmitting performance in the visible region and having excellent light-blocking performance in the infrared region; an infrared-light-blocking layer; an infrared cut-off filter; and a camera module. An infrared-light-blocking composition of the invention contains inorganic microparticles and a dispersing agent, and the infrared-light-blocking layer formed from the infrared-light-blocking composition has a transmittance at a wavelength of 1,000 nm of 60% or less, a transmittance at a wavelength of 1,100 nm of 50% or less, and a transmittance at a wavelength of 500 nm of 80% or more.Type: ApplicationFiled: December 29, 2015Publication date: April 28, 2016Applicant: FUJIFILM CorporationInventors: Satoru MURAYAMA, Kazuto SHIMADA, Yuki NARA
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Publication number: 20160033680Abstract: An object of the present invention is to provide a composition for forming a far-infrared radiation shielding layer which is able to form a layer having excellent far-infrared radiation shielding properties. A composition for forming a far-infrared radiation shielding layer of the present invention contains at least inorganic fine particles and a dispersant.Type: ApplicationFiled: October 9, 2015Publication date: February 4, 2016Applicant: FUJIFILM CorporationInventors: Daisuke HAMADA, Yuki NARA, Makoto KUBOTA, Kazuto SHIMADA, Kyohei ARAYAMA