Patents by Inventor Shingo Fujita
Shingo Fujita 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: 20160131975Abstract: A resist composition includes (A1) a resin having an acid-labile group, (A2) a resin which includes a structural unit represented by formula (I), and an acid generator: wherein R1 represents a hydrogen atom or a C3 to C18 alicyclic hydrocarbon group, A1 represents a single bond, a C1 to C6 alkanediyl group or *-A2-X1-(A3-X2)a-(A4)b-, * represents a binding site to an oxygen atom, A2, A3 and A4 each independently represent a C1 to C6 alkanediyl group, X1 and X2 each independently represent —O—, —CO—O— or —O—CO—, a represents 0 or 1, b represents 0 or 1, and R2 represents a C1 to C13 fluorinated saturated hydrocarbon group.Type: ApplicationFiled: November 10, 2015Publication date: May 12, 2016Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Tatsuro MASUYAMA, Shingo FUJITA, Koji ICHIKAWA
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Publication number: 20160062233Abstract: A salt having a group represented by formula (a): wherein Xa and Xb each independently represent an oxygen atom or a sulfur atom, X1 represents a divalent group having an alicyclic hydrocarbon group where a methylene group may be replaced by an oxygen atom or a carbonyl group, and where a hydrogen atom may be replaced by a hydroxy group or a fluorine atom, and * represents a binding site.Type: ApplicationFiled: August 25, 2015Publication date: March 3, 2016Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Tatsuro MASUYAMA, Shingo FUJITA, Koji ICHIKAWA
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Patent number: 9233945Abstract: A resin comprising a structural unit represented by formula (aa): wherein T1 represents a C3-C34 sultone ring group optionally having a substituent, X1 represents —O— or —N(Rc)—, Rc represents a hydrogen atom or a C1-C6 alkyl group, Z1 represents —X2— or —X3—X4—CO—X5—, where X2, X3 and X5 independently each represent a C1-C6 alkanediyl group, X4 represents —O— or —N(Rd)—, and Rd represents a hydrogen atom or a C1-C6 alkyl group, and R1 represents a hydrogen atom, a halogen atom, or a C1-C6 alkyl group optionally having a halogen atom.Type: GrantFiled: October 9, 2012Date of Patent: January 12, 2016Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Koji Ichikawa, Hiromu Sakamoto, Shingo Fujita
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Publication number: 20150248052Abstract: A photoresist composition comprising: a resin having an acid-labile group, an acid generator, and a compound represented by formula (I): wherein R1, R2 and R3 each independently represents a C1-C24 hydrocarbon group in which a hydrogen atom can be replaced by a substituent and in which a methylene group can be replaced by an oxygen atom, a sulfur atom or a carbonyl group.Type: ApplicationFiled: March 2, 2015Publication date: September 3, 2015Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Tatsuro MASUYAMA, Shingo FUJITA, Koji ICHIKAWA
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Patent number: 8921029Abstract: A resist composition having a resin having a structural unit represented by the formula (I), a resin being insoluble or poorly soluble in alkali aqueous solution, but becoming soluble in an alkali aqueous solution by the action of an acid and not including the structural unit represented by the formula (I), and an acid generator represented by the formula (II), wherein R1, A1, R2, RII1, RII2, LII1, YII1, RII3, RII4, RII5, RII6, RII7, n, s and RII8 are defined in the specification.Type: GrantFiled: July 18, 2012Date of Patent: December 30, 2014Assignee: Sumitomo Chemical Company, LimitedInventors: Koji Ichikawa, Yukako Anryu, Shingo Fujita
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Patent number: 8663900Abstract: A resist composition having a resin having a structural unit represented by the formula (I), a resin being insoluble or poorly soluble in alkali aqueous solution, but becoming soluble in an alkali aqueous solution by the action of an acid and not including the structural unit represented by the formula (I), and an acid generator represented by the formula (II), wherein R1, A1, A13, A14, X12, RII1, RII2, LII1, YII1, RII3, RII4, RII5, RII6, RII7, n, s and RII8 are defined in the specification.Type: GrantFiled: July 18, 2012Date of Patent: March 4, 2014Assignee: Sumitomo Chemical Company, LimitedInventors: Koji Ichikawa, Yukako Anryu, Shingo Fujita
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Patent number: 8617790Abstract: A photoresist composition comprising (A) a resin which has an acid-labile group-containing structural unit and a lactone ring-containing structural unit, and (B) a salt represented by formula (I): wherein Q1 and Q2 each independently represent a fluorine atom or a C1-C6 perfluoroalkyl group, n represents 0 or 1, L1 represents a single bond or a C1-C10 alkanediyl group in which a methylene group may be replaced by an oxygen atom or a carbonyl group, provided that L1 is not a single bond when n is 0, R1 represents a hydroxy group or a hydroxy group protected by a protecting group, and Z+ represents an organic cation.Type: GrantFiled: April 17, 2012Date of Patent: December 31, 2013Assignee: Sumitomo Chemical Company, LimitedInventors: Koji Ichikawa, Yukako Anryu, Shingo Fujita
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Patent number: 8420294Abstract: The present invention provides a salt represented by the formula (I): wherein R1 and R2 independently each represent a C1-C6 alkyl group or R1 and R2 are bonded each other to form a C5-C20 aliphatic ring together with the carbon atom to which they are bonded, R3 and R4 independently each represent a fluorine atom or a C1-C6 perfluoroalkyl group, X1 represents a C1-C17 divalent saturated hydrocarbon group in which one or more —CH2— can be replaced by —O— or —CO— and which may be substituted with one or more fluorine atoms, and Z1+ represents an organic counter ion.Type: GrantFiled: November 25, 2011Date of Patent: April 16, 2013Assignee: Sumitomo Chemical Company, LimitedInventors: Koji Ichikawa, Yukako Anryu, Shingo Fujita
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Publication number: 20130022920Abstract: A resist composition having a resin having a structural unit represented by the formula (I), a resin being insoluble or poorly soluble in alkali aqueous solution, but becoming soluble in an alkali aqueous solution by the action of an acid and not including the structural unit represented by the formula (I), and an acid generator represented by the formula (II), wherein R1, A1, A13, A14, X12, RII1, RII2, LII1, YII1, RII3, RII4, RII5, RII6, RII7, n, s and RII8 are defined in the specification.Type: ApplicationFiled: July 18, 2012Publication date: January 24, 2013Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Koji ICHIKAWA, Yukako ANRYU, Shingo FUJITA
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Publication number: 20130022917Abstract: A resist composition having a resin having a structural unit represented by the formula (I), a resin being insoluble or poorly soluble in alkali aqueous solution, but becoming soluble in an alkali aqueous solution by the action of an acid and not including the structural unit represented by the formula (I), and an acid generator represented by the formula (II), wherein R1, A1, R2, RII1, RII2, LII1, YII1, RII3, RII4, RII5, RII6, RII7, n, s and RII8 are defined in the specification.Type: ApplicationFiled: July 18, 2012Publication date: January 24, 2013Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Koji ICHIKAWA, Yukako ANRYU, Shingo FUJITA
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Publication number: 20120270153Abstract: A photoresist composition comprising (A) a resin which has an acid-labile group-containing structural unit and a lactone ring-containing structural unit, and (B) a salt represented by formula (I): wherein Q1 and Q2 each independently represent a fluorine atom or a C1-C6 perfluoroalkyl group, n represents 0 or 1, L1 represents a single bond or a C1-C10 alkanediyl group in which a methylene group may be replaced by an oxygen atom or a carbonyl group, provided that L1 is not a single bond when n is 0, R1 represents a hydroxy group or a hydroxy group protected by a protecting group, and Z+ represents an organic cation.Type: ApplicationFiled: April 17, 2012Publication date: October 25, 2012Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Koji ICHIKAWA, Yukako ANRYU, Shingo FUJITA
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Publication number: 20120156620Abstract: A resist composition contains; (A1) a resin having a structural unit represented by the formula (aa) and at least one structural unit selected from the group consisting of a structural unit represented by the formula (a1-1) and a structural unit represented by the formula (a1-2); (A2) a resin which does not have the structural unit represented by the formula (aa) and which is insoluble or poorly soluble in aqueous alkali solution, but becomes soluble in aqueous alkali solution by the action of acid; and (B) an acid generator, wherein Raa1, Aaal, Raa2, La1, La2, Ra4, Ra5, Ra6, Ra7, m1, n1 and n1? are defined in the specification.Type: ApplicationFiled: December 14, 2011Publication date: June 21, 2012Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Koji ICHIKAWA, Takashi HIRAOKA, Shingo FUJITA
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Publication number: 20120135351Abstract: The present invention provides a salt represented by the formula (I): wherein R1 and R2 independently each represent a C1-C6 alkyl group or R1 and R2 are bonded each other to form a C5-C20 aliphatic ring together with the carbon atom to which they are bonded, R3 and R4 independently each represent a fluorine atom or a C1-C6 perfluoroalkyl group, X1 represents a C1-C17 divalent saturated hydrocarbon group in which one or more —CH2— can be replaced by —O— or —CO— and which may be substituted with one or more fluorine atoms, and Z1+ represents an organic counter ion.Type: ApplicationFiled: November 25, 2011Publication date: May 31, 2012Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Koji ICHIKAWA, Yukako ANRYU, Shingo FUJITA
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Patent number: 6608659Abstract: A reflection liquid crystal display device comprises an upper substrate; a transparent electrode formed into an electrode pattern on one side of the upper substrate; an alignment film formed on the transparent electrode; a lower substrate opposed to the upper substrate; a reflective metal electrode including Al-alloy electrodes formed into an electrode pattern and opposed to the upper substrate; a protective insulation film formed on the reflective metal electrode; an alignment film formed on the protective film; and liquid crystal filled between the upper substrate and the lower substrate. The protective insulation film has a volume resistivity of small than 1×109 &OHgr;-cm. The defects due to the charges stored in the protective insulation film are alleviated, and a uniform display is achieved.Type: GrantFiled: February 7, 2001Date of Patent: August 19, 2003Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hiroaki Mizuno, Shingo Fujita, Tetsu Ogawa
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Patent number: 6597421Abstract: A reflective liquid crystal display element including a liquid crystal cell filling between an upper transparent substrate and lower substrate with liquid crystal, a polarizing film disposed at the upper transparent substrate side of the liquid crystal cell, a birefringent film layer disposed between the polarizing film and liquid crystal, cell and light reflecting means disposed at the lower substrate side of the liquid crystal cell. The display element further includes an undulated layer, which is not formed in the connection terminal between the lower substrate side of the liquid crystal cell and the external circuit board. Preferably, the sectional shape of the transparent electrode in the connection terminal between the display area and external circuit is formed in three stair steps.Type: GrantFiled: November 13, 2000Date of Patent: July 22, 2003Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Takayuki Hatanaka, Shingo Fujita, Masaki Nishinaka, Hiroshi Mizuno, Tetsu Ogawa
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Patent number: 6522378Abstract: An electrode width of intermediate connection wiring which connects terminal electrode and common electrode is made narrower than an electrode width of terminal electrode at forming an electrode pattern on one of substrates configuring a liquid crystal display device. This enables the prevention of detrimental effect of cutting and polishing the periphery of a liquid crystal cell onto the terminal electrode. A laser irradiation process required for removing the common electrode is eliminated, and thus manufacturing cost may be reduced.Type: GrantFiled: November 27, 2000Date of Patent: February 18, 2003Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hiroaki Mizuno, Masaki Nishinaka, Shingo Fujita, Tetsu Ogawa
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Patent number: 6426785Abstract: A reflective liquid crystal display device of the present invention has the following construction. A transparent electrode is provided via color filter layer on a transparent substrate positioned at the upper side of the device. A metallic reflective electrode is provided on a substrate positioned at the lower side of the device. An alignment layer is provided on the transparent electrode and on the metallic reflective electrode respectively. The transparent substrate positioned at the upper side and the substrate positioned at the lower side are arranged parallel to each other with alignment films provided on the transparent electrode and on the metallic reflective electrode facing each other. A liquid crystal layer is provided between the alignment films. A scattering film is provided on a surface of the transparent substrate positioned at the upper side opposite to the surface where the transparent electrode is provided.Type: GrantFiled: July 17, 2001Date of Patent: July 30, 2002Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hisanori Yamaguchi, Shingo Fujita, Hiroaki Mizuno, Tetsu Ogawa
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Patent number: 6404471Abstract: A reflection-type liquid crystal display device comprises a liquid crystal cell, a polarizing film, a birefringent film, a scattering layer, and a light reflection means, in which a diffuse reflection factor “R” of the scattering layer is designed to be 7% or greater, but 110% or less when an incident angle of light is in the range of 25° or greater and 45° or smaller. Here the diffuse reflection factor “R” is defined by the formula of R=R1/R2×100 (where R1 is a reflection factor irradiated at an incident angle of 0°, and R2 is a reflection factor irradiated at an incident angle of 25°). This structure is able to provide a reflection-type LCD which is bright in White display, capable of producing a high contrast, and reducing blur of an image.Type: GrantFiled: June 22, 2001Date of Patent: June 11, 2002Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Takayuki Hatanaka, Shingo Fujita, Tetsu Ogawa
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Publication number: 20010048495Abstract: A reflective liquid crystal display device of the present invention has the following construction. A transparent electrode is provided via color filter layer on a transparent substrate positioned at the upper side of the device. A metallic reflective electrode is provided on a substrate positioned at the lower side of the device. An alignment layer is provided on the transparent electrode and on the metallic reflective electrode respectively. The transparent substrate positioned at the upper side and the substrate positioned at the lower side are arranged parallel to each other with alignment films provided on the transparent electrode and on the metallic reflective electrode facing each other. A liquid crystal layer is provided between the alignment films. A scattering film is provided on a surface of the transparent substrate positioned at the upper side opposite to the surface where the transparent electrode is provided.Type: ApplicationFiled: July 17, 2001Publication date: December 6, 2001Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Hisanori Yamaguchi, Shingo Fujita, Hiroaki Mizuno, Tetsu Ogawa
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Patent number: 6300990Abstract: A reflective liquid crystal display device of the present invention has the following construction. A transparent electrode is provided via color filter layer on a transparent substrate positioned at the upper side of the device. A metallic reflective electrode is provided on a substrate positioned at the lower side of the device. An alignment layer is provided on the transparent electrode and on the metallic reflective electrode respectively. The transparent substrate positioned at the upper side and the substrate positioned at the lower side are arranged parallel to each other with alignment films provided on the transparent electrode and on the metallic reflective electrode facing each other. A liquid crystal layer is provided between the alignment films. A scattering film is provided on a surface of the transparent substrate positioned at the upper side opposite to the surface where the transparent electrode is provided.Type: GrantFiled: December 3, 1997Date of Patent: October 9, 2001Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hisanori Yamaguchi, Shingo Fujita, Hiroaki Mizuno, Tetsu Ogawa