Patents by Inventor Taiichi Sakaya
Taiichi Sakaya 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: 9850371Abstract: Methods for producing a resin film or a layered article which are excellent in gas barrier properties under high humidity conditions are disclosed. In the methods, a precursor film of a resin composition composed of alkali metal ions and a resin component having both hydroxyl groups and carboxyl groups is subjected to treatments including (i) dry heating treatment of holding the precursor film under an atmosphere characterized by a temperature not lower than 100° C. and a water vapor concentration less than 50 g/m3, (ii) wet heating treatment of holding the precursor film resulting from the dry heating treatment under an atmosphere characterized by a temperature not lower than 100° C. and a water vapor concentration more than 290 g/m3 or in water at a temperature not lower than 80° C., and (iii) drying the precursor film resulting from the wet heating treatment.Type: GrantFiled: July 14, 2009Date of Patent: December 26, 2017Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Nobuhiro Oosaki, Jinsho Nambu, Taiichi Sakaya
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Publication number: 20170050349Abstract: There is provided an inorganic particle composite body comprising a layer of a substrate formed of a plastically deformable solid material and an inorganic particle layer that is composed of inorganic particles that do not plastically deform under a condition under which the solid material plastically deforms, that contains gaps defined by the inorganic particles, and that adjoins the layer of the substrate, wherein part of the solid material is in at least part of the gaps in the inorganic particle layer.Type: ApplicationFiled: September 28, 2016Publication date: February 23, 2017Inventors: Makiko HARA, Makoto NAGATA, Taiichi SAKAYA
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Patent number: 8309182Abstract: A method for producing a multilayer structure including a first layer and a second layer adjacent to the first layer, wherein the first layer comprises a first inorganic laminar compound and the second layer comprises a second inorganic laminar compound, comprising applying a first coating slip comprising a first liquid medium and a first material onto a substrate and removing the first liquid medium, and a step of applying a second coating slip comprising a second liquid medium and a second material onto the first layer and removing the second liquid medium, wherein the first coating slip and the second coating slip satisfy a requirement that the ratio of the dry volume of the second inorganic laminar compound to the dry volume of the second material is higher than the ratio of the dry volume of the first inorganic laminar compound to the dry volume of the first material.Type: GrantFiled: October 20, 2008Date of Patent: November 13, 2012Assignee: Sumitomo Chemical Company, LimitedInventors: Nobuhiro Oosaki, Taiichi Sakaya
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Publication number: 20120164413Abstract: There is provided an inorganic particle composite body comprising a layer of a substrate formed of a plastically deformable solid material and an inorganic particle layer that is composed of inorganic particles that do not plastically deform under a condition under which the solid material plastically deforms, that contains gaps defined by the inorganic particles, and that adjoins the layer of the substrate, wherein part of the solid material is in at least part of the gaps in the inorganic particle layer.Type: ApplicationFiled: June 4, 2010Publication date: June 28, 2012Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Makiko Hara, Makoto Nagata, Taiichi Sakaya, Naoko Sakaya
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Publication number: 20120114518Abstract: A method for producing an inorganic particle composite body formed of a mixture of a plastically deformable metal, and inorganic particles that do not plastically deform under a condition under which the metal plastically deforms, wherein the method comprises: a step of preparing an inorganic particles structural body that is formed of a mixture of the metal and the inorganic particles and that contains a vacant space therein, and a step of plastically deforming the metal in the structural body.Type: ApplicationFiled: June 4, 2010Publication date: May 10, 2012Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Makiko Hara, Makoto Nagata, Taiichi Sakaya, Naoko Sakaya
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Patent number: 8129042Abstract: Disclosed is a multilayer structure including a first layer and a second layer adjacent to the first layer, wherein the first layer is formed of a first material comprising a first inorganic laminar compound and a second layer is formed of a second material comprising a second inorganic laminar compound with a volume fraction greater than the volume fraction of the first inorganic laminar compound in the first layer. The multilayer structure may includes a substrate layer. A method for producing the multilayer structure is also disclosed.Type: GrantFiled: October 20, 2005Date of Patent: March 6, 2012Assignee: Sumitomo Chemical Company, LimitedInventors: Nobuhiro Oosaki, Taiichi Sakaya
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Publication number: 20110292568Abstract: Provided is an electrode film comprising an active material having an average particle diameter being equal to or more than 2 ?m and equal to or less than 50 ?m and inorganic particles containing a conductive ion and having an average diameter being equal to or more than 1 nm and less than 2 ?m, wherein the active material is bound by the inorganic particles, and an electrode in which the electrode film is stacked on a current collector is also provided. In addition, an electric storage device, comprising the above-mentioned electrode, in which two electrodes are arranged so that their electrode films may be opposed to each other, the electrode films are wound or stacked with a separator interposed between the electrode films, and the electrodes and the separator are enclosed together with an electrolyte solution in a metal container is provided.Type: ApplicationFiled: November 26, 2009Publication date: December 1, 2011Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Hironori Eguchi, Taiichi Sakaya, Naoko Sakaya
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Publication number: 20110123708Abstract: A method for producing a layered article having a layer of particles stacked on a substrate, including the following steps: (1): preparing a mixed particle dispersion liquid by dispersing, in a liquid dispersion medium, inorganic particle chains (A) in a volume fraction of from 0.30 to 0.84, each of the chains being composed of three or more particles with a particle diameter of from 10 to 60 nm attached to each other in a chain form, inorganic particles (B) having an average particle diameter of from 1 to 20 nm in a volume fraction of from 0.10 to 0.45, and particles (C) having an average particle diameter Dc of larger than 20 nm in a volume fraction of from 0.06 to 0.25, (2): applying the mixed particle dispersion liquid onto the substrate, and (3): removing the liquid dispersion medium from the mixed particle dispersion liquid applied, thereby forming, on the substrate, the particle layer having a thickness of D that satisfies 0.5D?Dc?D.Type: ApplicationFiled: February 27, 2009Publication date: May 26, 2011Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Takumi Shibuta, Makiko Hara, Taiichi Sakaya, Naoko Sakaya
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Publication number: 20110058309Abstract: The electrode film of the present invention includes electrode material particles having an average particle diameter of Da, solid particles having an average particle diameter of Db, and an ionic liquid, wherein Da and Db satisfy a formula Db/Da?1.0×10?1. This electrode film is fabricated into an electrode in which the electrode film is stacked on a current collector. The electrode film is produced by a method including a step of dispersing electrode material particles having an average particle diameter of Da, solid particles having an average particle diameter of Db, and an ionic liquid in a liquid medium to obtain a dispersion liquid, a step of applying the dispersion liquid onto a support to form a dispersion liquid film, a step of removing the liquid medium from the dispersion liquid film to form an electrode film on the support, and a step of removing the support to isolate the electrode film. If a current collector is used as the support, an electrode is produced.Type: ApplicationFiled: February 27, 2009Publication date: March 10, 2011Applicant: Sumitomo Chemical Company LimitedInventors: Hinonori Eguchi, Takumi Shibut, Taiichi Sakaya, Naoko Sakaya
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Publication number: 20100183802Abstract: Disclosed is a method for producing a dispersion liquid of solid particulates, the method comprising subjecting a mixture liquid comprising charged particles, solid particles greater in average particle diameter than the charged particles, and a liquid medium to pulverization. Moreover, a method for producing an electrode and a method for producing an electric double layer capacitor using the aforementioned method.Type: ApplicationFiled: March 26, 2008Publication date: July 22, 2010Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Hironori Eguchi, Taiichi Sakaya, Takumi Shibuta
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METHODS FOR PRODUCING CARBON PARTICLE FILM, LAMINATED ELECTRODE, AND ELECTRIC DOUBLE LAYER CAPACITOR
Publication number: 20100175822Abstract: Provided is a method for producing a film comprising inorganic particles and carbon particles bound together with the inorganic particles, the method comprising a step of compressing a film composed of a mixture comprising carbon particles and inorganic particles at a temperature which is not higher than the melting point of the carbon particles and not higher than the melting point of the inorganic particles to increase the bulk density of the mixture. Moreover, a method for producing a laminated electrode and a method for producing an electric double layer capacitor, both using the foregoing method, are provided.Type: ApplicationFiled: March 27, 2008Publication date: July 15, 2010Applicant: SUMITOMO CHEMICAL COMPANY , LIMITEDInventors: Hironori Eguchi, Taiichi Sakaya, Takumi Shibuta -
Patent number: 7749567Abstract: Disclosed is a process for producing a layered article including a substrate and an inorganic particle layer formed thereon, the process including: preparing a mixed inorganic particle dispersion comprising a liquid dispersion medium containing inorganic particles (A) and inorganic particles (B), the mixed inorganic particle dispersion being characterized by conditions (1) regarding particle size, (2) regarding volume fraction of inorganic particles and (3) regarding weight fraction; applying the mixed inorganic particle dispersion to a substrate, and removing the liquid dispersion medium from the mixed inorganic particle dispersion applied to form an inorganic particle layer on the substrate.Type: GrantFiled: February 24, 2006Date of Patent: July 6, 2010Assignee: Sumitomo Chemical Company, LimitedInventors: Takumi Shibuta, Jinsho Nambu, Taiichi Sakaya
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Publication number: 20100026939Abstract: Provided are a polarizer containing a polarizing film having two surfaces opposing each other and one protective film layer, wherein the polarizing film has a resin film with dichroic dye molecules adsorbed on the resin film with uniaxial orientation, wherein the protective film layer is disposed on or over one of the surfaces of the polarizing film, and wherein the polarizer further has, on or over at least one of the surfaces of the polarizing film, an inorganic particle layer containing inorganic particles, and a polarizer having a polarizing film having two surfaces opposing each other and two protective film layers, wherein the polarizing film has a resin film with dichroic dye molecules adsorbed on the resin film with uniaxial orientation, wherein one of the protective film layers is disposed on or over one of the surfaces of the polarizing film and the other protective film layer is disposed on or over the other surface of the polarizing film, and wherein the polarizer further has, on or over at leastType: ApplicationFiled: December 19, 2007Publication date: February 4, 2010Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Takumi Shibuta, Taiichi Sakaya
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Publication number: 20090296315Abstract: An electrode film is provided which comprises carbon particles and inorganic particles having a particle diameter within the range of from 1 nm to 100 nm, wherein the carbon particles are bound together by the inorganic particles. In addition, an electrode is provided which has a current collector and an electrode film disposed on the current collector, wherein the electrode film is the aforesaid electrode film. This electrode can be produced by a method which has applying a dispersion liquid containing carbon particles and inorganic particles having a particle diameter within the range of from 1 nm to 100 nm dispersed in a liquid medium, to a current collector to form a dispersion liquid film, and removing the liquid medium from the dispersion liquid film to form an electrode film composed of the carbon particles and the inorganic particles. Furthermore, an electric double layer capacitor in which the aforesaid electrode has been incorporated is provided.Type: ApplicationFiled: November 2, 2007Publication date: December 3, 2009Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Hironori Eguchi, Takumi Shibuta, Taiichi Sakaya
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Publication number: 20090274843Abstract: Methods for producing a resin film or a layered article which are excellent in gas barrier properties under high humidity conditions are disclosed. In the methods, a precursor film of a resin composition composed of alkali metal ions and a resin component having both hydroxyl groups and carboxyl groups is subjected to treatments including (i) dry heating treatment of holding the precursor film under an atmosphere characterized by a temperature not lower than 100° C. and a water vapor concentration less than 50 g/m3, (ii) wet heating treatment of holding the precursor film resulting from the dry heating treatment under an atmosphere characterized by a temperature not lower than 100° C. and a water vapor concentration more than 290 g/m3 or in water at a temperature not lower than 80° C., and (iii) drying the precursor film resulting from the wet heating treatment.Type: ApplicationFiled: July 14, 2009Publication date: November 5, 2009Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Nobuhiro Oosaki, Jinsho Nambu, Taiichi Sakaya
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Publication number: 20090047492Abstract: Disclosed is a multilayer structure including a first layer and a second layer adjacent to the first layer, wherein the first layer is formed of a first material comprising a first inorganic laminar compound and a second layer is formed of a second material comprising a second inorganic laminar compound with a volume fraction greater than the volume fraction of the first inorganic laminar compound in the first layer. The multilayer structure may includes a substrate layer. A method for producing the multilayer structure is also disclosed.Type: ApplicationFiled: October 20, 2008Publication date: February 19, 2009Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Nobuhiro OOSAKI, Taiichi SAKAYA
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Publication number: 20070122557Abstract: Methods for producing a resin film or a layered article which are excellent in gas barrier properties under high humidity conditions are disclosed. In the methods, a precursor film of a resin composition composed of alkali metal ions and a resin component having both hydroxyl groups and carboxyl groups is subjected to treatments including (i) dry heating treatment of holding the precursor film under an atmosphere characterized by a temperature not lower than 100° C. and a water vapor concentration less than 50 g/m3, (ii) wet heating treatment of holding the precursor film resulting from the dry heating treatment under an atmosphere characterized by a temperature not lower than 100° C. and a water vapor concentration more than 290 g/m3 or in water at a temperature not lower than 80° C., and (iii) drying the precursor film resulting from the wet heating treatment.Type: ApplicationFiled: November 22, 2006Publication date: May 31, 2007Inventors: Nobuhiro Oosaki, Jinsho Nambu, Taiichi Sakaya
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Publication number: 20060193987Abstract: Disclosed is a process for producing a layered article including a substrate and an inorganic particle layer formed thereon, the process including: preparing a mixed inorganic particle dispersion comprising a liquid dispersion medium containing inorganic particles (A) and inorganic particles (B), the mixed inorganic particle dispersion being characterized by conditions (1) regarding particle size, (2) regarding volume fraction of inorganic particles and (3) regarding weight fraction; applying the mixed inorganic particle dispersion to a substrate, and removing the liquid dispersion medium from the mixed inorganic particle dispersion applied to form an inorganic particle layer on the substrate.Type: ApplicationFiled: February 24, 2006Publication date: August 31, 2006Inventors: Takumi Shibuta, Jinsho Nambu, Taiichi Sakaya
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Publication number: 20060088707Abstract: Disclosed is a multilayer structure including a first layer and a second layer adjacent to the first layer, wherein the first layer is formed of a first material comprising a first inorganic laminar compound and a second layer is formed of a second material comprising a second inorganic laminar compound with a volume fraction greater than the volume fraction of the first inorganic laminar compound in the first layer. The multilayer structure may includes a substrate layer. A method for producing the multilayer structure is also disclosed.Type: ApplicationFiled: October 20, 2005Publication date: April 27, 2006Inventors: Nobuhiro Oosaki, Taiichi Sakaya
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Patent number: 6534580Abstract: A resin material comprising a resin, which satisfies at least one relationship selected from the group consisting of the following relationships [I] and [II] is provided: ln(OTR/22.5)+4.78 ln(Fy/Fy′)<−0.13, and T2−T1≦20 [I] in which Fy′ is a yield strength of a standard saponified ethylene-vinyl acetate copolymer at 60° C.; Fy is a yield strength of the resin material at 60° C.; OTR is an oxygen gas permeability (cc/m2·day·atm) of the resin material per a unit thickness of 1 &mgr;m at 23° C. and a relative humidity of 0%; T1 is a haze (%) of a film of the resin material having a thickness of 30 &mgr;m after being maintained at 23° C. and a relative humidity of 48% for 48 hours; and T2 is a haze (%) of a film of the resin material having a thickness of 30 &mgr;m after being maintained at 40° C. and a relative humidity of 90% for 24 hour, and ln(OTR/22.5)+0.0698(Tim−157)<−0.Type: GrantFiled: November 5, 1999Date of Patent: March 18, 2003Assignee: Sumitomo Chemical Company, LimitedInventors: Satoshi Hanada, Ryuma Kuroda, Taiichi Sakaya