Patents by Inventor Yoshitsugu Eguchi
Yoshitsugu Eguchi 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: 10377904Abstract: An inorganic hydrophilic coating solution including (a) an aqueous solution containing an amorphous silicate compound obtained by hydrolyzing and condensing a tetrafunctional silicon compound having a purity of 99.0 mass % or greater in an aqueous medium in the presence of a basic compound at a temperature within a range from normal temperature to 170° C., (b) water, and optionally, (c) not more than 30 mass % of an alcohol, a ketone, or a surfactant, where the concentration of the solid fraction derived from the aqueous solution containing the amorphous silicate compound is 0.01 to 2.0 mass % and the pH is 5 to 8; an inorganic hydrophilic coating film formed from a dried and cured product of the inorganic hydrophilic coating solution; a member having a substrate and the inorganic hydrophilic coating film formed on the surface of the substrate; and a cover panel for a solar cell module including the member.Type: GrantFiled: May 31, 2012Date of Patent: August 13, 2019Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Tomohiro Inoue, Manabu Furudate, Yoshitsugu Eguchi, Tadashi Amano
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Patent number: 9833776Abstract: The present invention relates to a dispersion liquid of titanium oxide-tungsten oxide composite photocatalytic fine particles that is characterized by having two types of photocatalytic fine particles dispersed in an aqueous dispersion medium, the fine particles including i) fine particles of titanium oxide that contain a peroxotitanium component and a copper component and ii) fine particles of tungsten oxide. The present invention can provide a dispersion liquid and the like that can be used to conveniently manufacture a photocatalytic thin film that demonstrates photocatalytic activity even within visible light (400-800 nm) only, exhibits high antibacterial performance, is highly durable, and wherein the state of copper coordination is stable against exposure to heat and ultraviolet rays and is not easily modified. The dispersion liquid is a dispersion liquid of titanium oxide-tungsten oxide composite photocatalytic fine particles that contains copper-containing titanium oxide fine particles.Type: GrantFiled: September 29, 2014Date of Patent: December 5, 2017Assignee: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Manabu Furudate, Tomohiro Inoue, Yoshitsugu Eguchi, Takashi Kobayashi
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Patent number: 9604198Abstract: It is possible to obtain a visible light-responsive photocatalytic nanoparticle dispersion liquid containing copper-containing titanium oxide nanoparticles by subjecting an aqueous peroxotitanic acid solution containing a copper compound to hydrothermal reaction for crystallizing the aqueous solution by means of heat under high pressure. The visible light-responsive photocatalytic nanoparticle dispersion liquid thus obtained exhibits excellent dispersion stability of titanium oxide nanoparticles within a water-based dispersion medium even when left in a cold and dark indoor area for a long period of time, expresses photocatalytic activity even in visible light (400 to 800 nm) alone, and can easily create a photocatalytic thin film which is extremely transparent and exhibits excellent durability, and in which the state of copper coordination when exposed to heat or ultraviolet rays is stable and cannot be easily modified.Type: GrantFiled: September 3, 2013Date of Patent: March 28, 2017Assignee: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Manabu Furudate, Tomohiro Inoue, Yoshitsugu Eguchi, Takashi Kobayashi
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Patent number: 9555399Abstract: Provided is a visible-light-responsive titanium oxide microparticle dispersion or the like readily enabling manufacture of a highly transparent photocatalyst thin film demonstrating photocatalyst activity even using visible light alone, and having exceptional titanium oxide microparticle dispersion stability even after storage for prolonged periods of time in cold and dark interior locations. The present invention makes it possible to: produce a peroxotitanic acid solution containing vanadium and a tin compound from a titanium compound, a vanadium compound, a tin compound, a basic substance, hydrogen peroxide, and an aqueous dispersion medium as starting materials; subject the peroxotitanic acid solution to a hydrothermal reaction under high pressure; subsequently admix a copper compound into the acid solution; and obtain a visible-light-responsive titanium oxide microparticle dispersion or the like.Type: GrantFiled: October 10, 2012Date of Patent: January 31, 2017Assignee: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Manabu Furudate, Tomohiro Inoue, Yoshitsugu Eguchi, Tadashi Amano
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Patent number: 9463436Abstract: A method for manufacturing a microparticulate anatase or rutile titanium oxide dispersion from a peroxotitanic acid solution optionally containing tin, wherein the method for manufacturing an anatase or rutile titanium oxide dispersion is characterized in that the peroxotitanic acid solution is fed continuously to a flow reactor and subjected to hydrothermal treatment at 150 to 250° C. and 0.5 to 10 MPa. The invention makes it possible to provide a method for manufacturing a microparticulate anatase or rutile titanium oxide dispersion having excellent stability in regard to the titanium oxide microparticles and enabling a high-transparency photocatalytic thin film to be produced, and to provide a member having a photocatalytic thin film formed on the surface using this dispersion.Type: GrantFiled: May 10, 2012Date of Patent: October 11, 2016Assignee: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Manabu Furudate, Tomohiro Inoue, Shiro Takahashi, Yoshitsugu Eguchi, Tadashi Amano
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Publication number: 20160250621Abstract: The present invention relates to a dispersion liquid of titanium oxide-tungsten oxide composite photocatalytic fine particles that is characterized by having two types of photocatalytic fine particles dispersed in an aqueous dispersion medium, the fine particles including i) fine particles of titanium oxide that contain a peroxotitanium component and a copper component and ii) fine particles of tungsten oxide. The present invention can provide a dispersion liquid and the like that can be used to conveniently manufacture a photocatalytic thin film that demonstrates photocatalytic activity even within visible light (400-800 nm) only, exhibits high antibacterial performance, is highly durable, and wherein the state of copper coordination is stable against exposure to heat and ultraviolet rays and is not easily modified. The dispersion liquid is a dispersion liquid of titanium oxide-tungsten oxide composite photocatalytic fine particles that contains copper-containing titanium oxide fine particles.Type: ApplicationFiled: September 29, 2014Publication date: September 1, 2016Applicant: Shin-Etsu Chemical Co., Ltd.Inventors: Manabu FURUDATE, Tomohiro INOUE, Yoshitsugu EGUCHI, Takashi KOBAYASHI
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Publication number: 20160111559Abstract: Provided is a solar cell degradation control-cover glass having a thin film that is formed by applying to a cover glass back surface a coating liquid comprising either an aqueous solution of a water-soluble compound of at least one metal selected from silicon, aluminum, zirconium, tin and zinc or a fine particle dispersion liquid of an oxide of such metal.Type: ApplicationFiled: May 23, 2014Publication date: April 21, 2016Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Tomohiro INOUE, Manabu FURUDATE, Yoshitsugu EGUCHI, Takashi KOBAYASHI
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Publication number: 20150273440Abstract: It is possible to obtain a visible light-responsive photocatalytic nanoparticle dispersion liquid containing copper-containing titanium oxide nanoparticles by subjecting an aqueous peroxotitanic acid solution containing a copper compound to hydrothermal reaction for crystallizing the aqueous solution by means of heat under high pressure. The visible light-responsive photocatalytic nanoparticle dispersion liquid thus obtained exhibits excellent dispersion stability of titanium oxide nanoparticles within a water-based dispersion medium even when left in a cold and dark indoor area for a long period of time, expresses photocatalytic activity even in visible light (400 to 800 nm) alone, and can easily create a photocatalytic thin film which is extremely transparent and exhibits excellent durability, and in which the state of copper coordination when exposed to heat or ultraviolet rays is stable and cannot be easily modified.Type: ApplicationFiled: September 3, 2013Publication date: October 1, 2015Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Manabu Furudate, Tomohiro Inoue, Yoshitsugu Eguchi, Takashi Kobayashi
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Visible-light-responsive titanium oxide microparticle dispersion, and process for production thereof
Patent number: 8986580Abstract: Disclosed are: a visible-light-responsive titanium oxide microparticle dispersion comprising an aqueous dispersion medium and titanium oxide microparticles dispersed therein, and a peroxotitanium component, an iron component and/or a copper component and a tin component, wherein the content of the peroxotitanium component is 0.1 to 20 mass % relative to the titanium oxide content; and a process for producing a visible-light-responsive titanium oxide microparticle dispersion, comprising (1) producing peroxotitanic acid containing a tin compound from a raw material titanium compound, a tin compound and hydrogen peroxide, (2) heating an aqueous solution of peroxotitanic acid containing the tin compound to 80 to 250° C.Type: GrantFiled: March 11, 2011Date of Patent: March 24, 2015Assignee: Shin-etsu Chemical Co., Ltd.Inventors: Manabu Furudate, Tomohiro Inoue, Yoshitsugu Eguchi, Tadashi Amano -
Publication number: 20140309103Abstract: Provided is a visible-light-responsive titanium oxide microparticle dispersion or the like readily enabling manufacture of a highly transparent photocatalyst thin film demonstrating photocatalyst activity even using visible light alone, and having exceptional titanium oxide microparticle dispersion stability even after storage for prolonged periods of time in cold and dark interior locations. The present invention makes it possible to: produce a peroxotitanic acid solution containing vanadium and a tin compound from a titanium compound, a vanadium compound, a tin compound, a basic substance, hydrogen peroxide, and an aqueous dispersion medium as starting materials; subject the peroxotitanic acid solution to a hydrothermal reaction under high pressure; subsequently admix a copper compound into the acid solution; and obtain a visible-light-responsive titanium oxide microparticle dispersion or the like.Type: ApplicationFiled: October 10, 2012Publication date: October 16, 2014Inventors: Manabu Furudate, Tomohiro Inoue, Yoshitsugu Eguchi, Tadashi Amano
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Publication number: 20140127514Abstract: An inorganic hydrophilic coating solution including (a) an aqueous solution containing an amorphous silicate compound obtained by hydrolyzing and condensing a tetrafunctional silicon compound having a purity of 99.0 mass % or greater in an aqueous medium in the presence of a basic compound at a temperature within a range from normal temperature to 170° C., (b) water, and optionally, (c) not more than 30 mass % of an alcohol, a ketone, or a surfactant, where the concentration of the solid fraction derived from the aqueous solution containing the amorphous silicate compound is 0.01 to 2.0 mass % and the pH is 5 to 8; an inorganic hydrophilic coating film formed from a dried and cured product of the inorganic hydrophilic coating solution; a member having a substrate and the inorganic hydrophilic coating film formed on the surface of the substrate; and a cover panel for a solar cell module including the member.Type: ApplicationFiled: May 31, 2012Publication date: May 8, 2014Applicant: Shin-Etsu Chemical Co.,Ltd.Inventors: Tomohiro Inoue, Manabu Furudate, Yoshitsugu Eguchi, Tadashi Amano
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Publication number: 20140100105Abstract: A method for manufacturing a microparticulate anatase or rutile titanium oxide dispersion from a peroxotitanic acid solution optionally containing tin, wherein the method for manufacturing an anatase or rutile titanium oxide dispersion is characterized in that the peroxotitanic acid solution is fed continuously to a flow reactor and subjected to hydrothermal treatment at 150 to 250° C. and 0.5 to 10 MPa. The invention makes it possible to provide a method for manufacturing a microparticulate anatase or rutile titanium oxide dispersion having excellent stability in regard to the titanium oxide microparticles and enabling a high-transparency photocatalytic thin film to be produced, and to provide a member having a photocatalytic thin film formed on the surface using this dispersion.Type: ApplicationFiled: May 10, 2012Publication date: April 10, 2014Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Manabu Furudate, Tomohiro Inoue, Shiro Takahashi, Yoshitsugu Eguchi, Tadashi Amano
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Publication number: 20140023855Abstract: Core/shell type tetragonal titanium oxide particles consisting of a nanosized core of tetragonal titanium oxide having tin and manganese incorporated in solid solution and a shell of silicon oxide around the core are dispersed in an aqueous dispersing medium. The cores and the core/shell type titanium oxide particles have an average particle size of ?30 nm and ?50 nm, respectively. The amount of tin or manganese in solid solution is to provide a molar ratio Ti/Sn or Ti/Mn between 10 and 1,000.Type: ApplicationFiled: July 18, 2013Publication date: January 23, 2014Applicant: Shin-Etsu Chemical Co., Ltd.Inventors: Kohei MASUDA, Koichi HIGUCHI, Hisatoshi KOMORI, Manabu FURUDATE, Tomohiro INOUE, Yoshitsugu EGUCHI
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VISIBLE-LIGHT-RESPONSIVE TITANIUM OXIDE MICROPARTICLE DISPERSION, AND PROCESS FOR PRODUCTION THEREOF
Publication number: 20120214667Abstract: Disclosed are: a visible-light-responsive titanium oxide microparticle dispersion comprising an aqueous dispersion medium and titanium oxide microparticles dispersed therein, and a peroxotitanium component, an iron component and/or a copper component and a tin component, wherein the content of the peroxotitanium component is 0.1 to 20 mass % relative to the titanium oxide content; and a process for producing a visible-light-responsive titanium oxide microparticle dispersion, comprising (1) producing peroxotitanic acid containing a tin compound from a raw material titanium compound, a tin compound and hydrogen peroxide, (2) heating an aqueous solution of peroxotitanic acid containing the tin compound to 80 to 250° C.Type: ApplicationFiled: March 11, 2011Publication date: August 23, 2012Inventors: Manabu Furudate, Tomohiro Inoue, Yoshitsugu Eguchi, Tadashi Amano -
Patent number: 6620513Abstract: The subject matter of the invention is a base sheet for the preparation of a flexible printed circuit board which is a three-layered laminate consisting of (a) an electrically insulating film of a plastic resin such as a polyimide, (b) an epoxy resin-based adhesive layer and (c) a copper foil bonded to the film (a) with intervention of the adhesive layer (b). The base sheet can exhibit excellent performance in respect of peeling resistance, soldering heat resistance, dimensional stability and solvent resistance as well as workability into a printed circuit board only when each of the layers (a), (b) and (c) has a specified thickness in a narrow range of 10-30 &mgr;m, 5-15 &mgr;m and 5-15 &mgr;m, respectively.Type: GrantFiled: July 2, 2001Date of Patent: September 16, 2003Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Masahiro Yuyama, Hitoshi Arai, Yoshitsugu Eguchi
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Publication number: 20030015345Abstract: The invention discloses an improved base sheet for flexible printed circuit boards used in assemblage of compact-size electric or electronic instruments. The base sheet is a layered sheet body consisting of (a) a layer of an electrically insulating material having flexibility such as plastic resin films and (b) a copper foil of a specified thickness adhesively laminated to the insulating film (a) with intervention of (c) a thermosetting adhesive layer. Excellent processability of the base sheet to a printed circuit board having a finely patterned copper foil layer can be obtained when the surface of the copper foil (b) in contact with the thermosetting adhesive layer (c) has a surface roughness Rz not exceeding 3 &mgr;m and is provided with a surface treatment layer in which the content of nickel is in the range from 0.001 to 0.1 g/m2.Type: ApplicationFiled: June 21, 2002Publication date: January 23, 2003Inventors: Hitoshi Arai, Yoshitsugu Eguchi
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Publication number: 20020012780Abstract: The subject matter of the invention is a base sheet for the preparation of a flexible printed circuit board which is a three-layered laminate consisting of (a) an electrically insulating film of a plastic resin such as a polyimide, (b) an epoxy resin-based adhesive layer and (c) a copper foil bonded to the film (a) with intervention of the adhesive layer (b). The base sheet can exhibit excellent performance in respect of peeling resistance, soldering heat resistance, dimensional stability and solvent resistance as well as workability into a printed circuit board only when each of the layers (a), (b) and (c) has a specified thickness in a narrow range of 10-30 &mgr;m, 5-15 &mgr;m and 5-15 &mgr;m, respectively.Type: ApplicationFiled: July 2, 2001Publication date: January 31, 2002Applicant: Shin-Etsu Chemical Co., Ltd.Inventors: Masahiro Yuyama, Hitoshi Arai, Yoshitsugu Eguchi
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Publication number: 20010018122Abstract: Disclosed is an improved epoxy resin-based adhesive composition, which is particularly suitable for use in the preparation of a base sheet for flexible printed circuit boards as a laminate of an insulating plastic resin film and a foil of a metal such as copper as well as in the preparation of a coverlay film for protection of the circuit pattern of the metal foil in a flexible printed circuit board. The adhesive composition comprises, as a uniform blend, (a) an epoxy resin, (b) an acrylic rubber modified by carboxyl groups to have a specified content of the carboxyl groups, (c) a curing agent for the epoxy resin such as an aromatic amine compound and (d) a curing promoter, each in a specified weight proportion.Type: ApplicationFiled: January 17, 2001Publication date: August 30, 2001Applicant: Shin-Etsu Chemical Co., Ltd.Inventors: Masahiro Yuyama, Hitoshi Arai, Yoshitsugu Eguchi
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Patent number: 6054509Abstract: Provided by the invention is a thermosetting adhesive composition suitable for use in the preparation of metal foil-laminated base sheets of flexible printed circuit boards and laminated product related thereto such as coverlay films and bonding sheets. The adhesive composition is a uniform blend which comprises: (A) an epoxy resin including a brominated epoxy resin to exhibit flame retardancy; (B) a combination of two or three kinds of different nitrile rubbers distinguishable relative to the iodine value and content of carboxyl groups at the molecular chain ends in a specified weight proportion; (C) a curing agent for the epoxy resin; and (D) a curing accelerator, with optional admixture of (E) an inorganic filler; and/or (F) a vulcanizing agent for the nitrile rubbers.Type: GrantFiled: July 13, 1998Date of Patent: April 25, 2000Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Hitoshi Arai, Masahiro Yuyama, Yoshitsugu Eguchi
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Patent number: 5260130Abstract: A coverlay film, which is used for protection of a flexible printed circuit board, is provided by the invention as being imparted with improved adhesiveness, heat-resistance against molten solder alloy, punching workability and other properties. The inventive coverlay film is characterized by the novel and unique formulation of the adhesive to form an adhesive layer on one surface of a substrate plastic, e.g., polyimide, film. The adhesive is formulated with an epoxy resin, carboxylated nitrile rubber, curing agent for the epoxy resin, curing accelerator and fine inorganic powder each of a specified type and in a specified weight proportion.Type: GrantFiled: March 26, 1992Date of Patent: November 9, 1993Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Mitoshi Sakaguchi, Hiroyuki Iwata, Makoto Fujiwara, Yoshitsugu Eguchi