Patents by Inventor Kazushige Kitazawa
Kazushige Kitazawa 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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Patent number: 11614574Abstract: A photosensitive green composition for a color filter of a solid-state imaging element, contains a colorant (A), a binder resin (B), a photopolymerization initiator (C), a photopolymerizable monomer (D), an ultraviolet absorber (E), and a monofunctional thiol (F), wherein the colorant (A) contains C.I. Pigment Green 36 and/or C.I. Pigment Green 58.Type: GrantFiled: September 25, 2019Date of Patent: March 28, 2023Assignee: TOPPAN PRINTING CO., LTD.Inventors: Tomotaka Chuko, Kenji Hiki, Ryuji Doi, Kazushige Kitazawa, Shinichi Okamoto, Tetsuya Hirota, Tadatoshi Maeda, Hiroyuki Chinone
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Publication number: 20210358983Abstract: A solid-state image sensor filter includes: a light-incident surface on which light is incident; an infrared filter located on a side of a photoelectric conversion element on which the light-incident surface is disposed; and a barrier layer located on a side of the infrared filter on which the light-incident surface is disposed, the barrier layer being provided to suppress transmission of an oxidation source to thereby prevent the infrared filter from being oxidized.Type: ApplicationFiled: July 30, 2021Publication date: November 18, 2021Applicant: TOPPAN PRINTING CO., LTD.Inventors: Reiko Iwata, Yuri Hirai, Kazushige Kitazawa, Tadatoshi Maeda
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Publication number: 20210198492Abstract: A color composition including: an organic pigment (A); a dispersant (B); an epoxy compound (C); a solvent (D); and a coloring matter derivative (E), in which a content of the organic pigment (A) is at least 50 mass % with respect to a non-volatile content in the coloring composition, the dispersant (B) contains a dispersant (b1) having an acidic functional group and/or a dispersant (b2) having a basic functional group, and the epoxy compound (C) is at least one compound selected from the group consisting of glycerol polyglycidyl ether, bisphenol-type polyglycidyl ether, and hydrogenated bisphenol-type polyglycidyl ether.Type: ApplicationFiled: May 22, 2019Publication date: July 1, 2021Applicants: TOYO INK SC HOLDINGS CO., LTD., TOYO VISUAL SOLUTIONS CO., LTD., TOYOCOLOR CO., LTD., TOPPAN PRINTING CO., LTD.Inventors: Kenji HIKI, Hiroyuki YAMAKAWA, Tetsuya HIROTA, Kazushige KITAZAWA
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Patent number: 10564508Abstract: A reflection-type display panel includes a substrate, a pixel electrode formed on the substrate, a reflection display layer formed on the pixel electrode, a transparent electrode formed on the reflection display layer, and a color filter formed on the transparent electrode and including an ink fixation layer. The color filter has colored portions formed on the ink fixation layer such that the colored portions correspond respectively to driving units of the pixel electrode, and the colored portions each include a coloring composition including a pigment and a binder resin such that a weight ratio of the pigment to the binder resin in each of the colored portions is in a range of from 1:9 to 5:5.Type: GrantFiled: February 23, 2015Date of Patent: February 18, 2020Assignee: TOPPAN PRINTING CO., LTD.Inventors: Kazushige Kitazawa, Tomoko Tsuruda, Yohei Nishikawa
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Publication number: 20200018878Abstract: A photosensitive green composition for a color filter of a solid-state imaging element, contains a colorant (A), a binder resin (B), a photopolymerization initiator (C), a photopolymerizable monomer (D), an ultraviolet absorber (E), and a monofunctional thiol (F), wherein the colorant (A) contains C.I. Pigment Green 36 and/or C.I. Pigment Green 58.Type: ApplicationFiled: September 25, 2019Publication date: January 16, 2020Applicants: TOYO INK SC HOLDINGS CO., LTD., TOYOCOLOR CO., LTD., TOPPAN PRINTING CO., LTD.Inventors: Tomotaka Chuko, Kenji Hiki, Ryuji Doi, Kazushige Kitazawa, Shinichi Okamoto, Tetsuya Hirota, Tadatoshi Maeda, Hiroyuki Chinone
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Patent number: 9494841Abstract: An electrophoretic reflective color display has a color filter on an electrophoretic display layer displaying black and white. A colored portion and a non-colored portion are provided in a pixel of the color filter layer, and the colored portion has a hue defined by specified values of chromaticity coordinates (a*, b*), measured with transmitted light using a D65 light source, in a chromaticity diagram of the L*a*b* color system.Type: GrantFiled: September 19, 2014Date of Patent: November 15, 2016Assignee: TOPPAN PRINTING CO., LTD.Inventor: Kazushige Kitazawa
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Publication number: 20150213764Abstract: A reflective display including a substrate, pixel electrodes formed on the substrate, a reflective display layer formed on the pixel electrodes, an electrode formed on the reflective display layer, an ink fixing layer formed on the electrode, and a color filter layer formed on the ink fixing layer and having pixels. Each pixel includes a first subpixel, a second subpixel, and a third subpixel, the first subpixel includes a colored portion for a first color, the second subpixel includes a colored portion for a second color complementary to the first color, the third subpixel is transparent, and the color filter layer is formed such that the colored portion in the second subpixel has an area of from 0.2 to 1.0 inclusive, and the third subpixel has an area of from 0.5 to 8.0 inclusive, with respect to an area of the colored portion in the first subpixel being 1.0.Type: ApplicationFiled: April 3, 2015Publication date: July 30, 2015Applicant: TOPPAN PRINTING CO., LTD.Inventors: Kazushige KITAZAWA, Akira Emori, Kayo Kinosita
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Publication number: 20150168800Abstract: A reflection-type display panel includes a substrate, a pixel electrode formed on the substrate, a reflection display layer formed on the pixel electrode, a transparent electrode formed on the reflection display layer, and a color filter formed on the transparent electrode and including an ink fixation layer. The color filter has colored portions formed on the ink fixation layer such that the colored portions correspond respectively to driving units of the pixel electrode, and the colored portions each include a coloring composition including a pigment and a binder resin such that a weight ratio of the pigment to the binder resin in each of the colored portions is in a range of from 1:9 to 5:5.Type: ApplicationFiled: February 23, 2015Publication date: June 18, 2015Applicant: TOPPAN PRINTING CO., LTD.Inventors: Kazushige KITAZAWA, Tomoko Tsuruda, Yohei Nishikawa
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Publication number: 20150009552Abstract: An electrophoretic reflective color display has a color filter on an electrophoretic display layer displaying black and white. A colored portion and a non-colored portion are provided in a pixel of the color filter layer, and the colored portion has a hue defined by specified values of chromaticity coordinates (a*, b*), measured with transmitted light using a D65 light source, in a chromaticity diagram of the L*a*b* color system.Type: ApplicationFiled: September 19, 2014Publication date: January 8, 2015Applicant: Toppan Printing Co., Ltd.Inventor: Kazushige KITAZAWA
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Patent number: 8120731Abstract: An article having a color pattern formed therein comprises a substrate, banks on the substrate, and a colored layer provided between the banks. The colored layer has a thickness of 80-120% of an average thickness thereof. In addition, the banks have an ink repelling agent or the upper apex portion of the banks has ink repelling ability.Type: GrantFiled: September 11, 2007Date of Patent: February 21, 2012Assignee: Toppan Printing Co., Ltd.Inventors: Kazushige Kitazawa, Shigeru Hirayama, Teruhiko Kai, Shinya Kanno
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Patent number: 7695895Abstract: An alkali-developable photosensitive color composition containing a binder resin, a fluorine-containing copolymer, a photopolymerization initiator, a colorant, and a solvent. A photopolymerizable unsaturated compound is used as the binder resin. The photopolymerizable unsaturated compound is obtained by adding (B) an unsaturated monobasic acid to (A) a polyfunctional epoxy resin to form (C) an epoxy adduct and allowing the epoxy adduct (C) and (D) a polybasic acid anhydride to react with each other.Type: GrantFiled: July 19, 2006Date of Patent: April 13, 2010Assignees: Toppan Printing Co., Ltd., Adeka CorporationInventors: Hiroyuki Miura, Kazushige Kitazawa, Hideyuki Yamada, Masahide Tsuzuki, Ryota Chiba
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Publication number: 20090068396Abstract: An article having a color pattern formed therein comprises a substrate, banks on the substrate, and a colored layer provided between the banks. The colored layer has a thickness of 80-120% of an average thickness thereof. In addition, the banks have an ink repelling agent or the upper apex portion of the banks has ink repelling ability.Type: ApplicationFiled: September 11, 2007Publication date: March 12, 2009Applicant: Toppan Printing Co., Ltd.Inventors: Kazushige Kitazawa, Shigeru Hirayama, Teruhiko Kai, Shinya Kanno
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Publication number: 20090068574Abstract: An embodiment of the present invention is disclosed. A substrate with a bank, comprising a substrate; and a bank on the substrate, wherein the bank comprises a resin composition containing at least a binder resin, and melamine resin or a derivative thereof, and the amount of the melamine resin or derivative thereof is from 5 to 30 parts by weight relative to 100 parts by weight of the binder resin. Further, colored layers have been formed in pixels sectioned with the banks by printing through an ink-jet system.Type: ApplicationFiled: September 11, 2007Publication date: March 12, 2009Applicant: Toppan Printing Co., Ltd.Inventors: Kazushige Kitazawa, Hiroyuki Miura, Teruhiko Kai, Hideyuki Yamada
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Publication number: 20070292805Abstract: An alkali-developable photosensitive color composition containing a binder resin, a fluorine-containing copolymer, a photopolymerization initiator, a colorant, and a solvent. A photopolymerizable unsaturated compound is used as the binder resin. The photopolymerizable unsaturated compound is obtained by adding (B) an unsaturated monobasic acid to (A) a polyfunctional epoxy resin to form (C) an epoxy adduct and allowing the epoxy adduct (C) and (D) a polybasic acid anhydride to react with each other.Type: ApplicationFiled: July 19, 2006Publication date: December 20, 2007Applicant: ADEKA CORPORATIONInventors: Hiroyuki Miura, Kazushige Kitazawa, Hideyuki Yamada, Masahide Tsuzuki, Ryota Chiba