Patents by Inventor Yasuo Taima
Yasuo Taima 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: 9541681Abstract: Disclosed is a novel light extraction sheet, which not only improves light extraction efficiency but suppresses color change with the angle of observation, an organic EL element employing this light extraction sheet, and an illumination device employing the element. The light extraction sheet is featured in that it comprises a transparent resin film and provided thereon, a light scatter layer containing a binder resin and light scattering particles with an average particle size of front 0.2 to 1.0 ?m dispersed in the binder resin and a concavo-convex layer containing a binder resin and spherical particles with an average particle size of from 3 to 10 ?m.Type: GrantFiled: May 17, 2011Date of Patent: January 10, 2017Assignee: KONICA MINOLTA HOLDINGS, INC.Inventors: Yasuo Taima, Kunimasa Hiyama
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Patent number: 9470827Abstract: The near-infrared reflective film is a lamination unit including: a high refractive layer containing a first metal oxide particle and a first water-soluble polymer, a low refractive layer containing a second metal oxide particle and a second water-soluble polymer, and a mixed layer that is located between the high refractive layer and the low refractive layer and contains the first metal oxide particle, the second metal oxide particle, and a third water-soluble polymer. The refractive index of the low refractive layer is smaller than the refractive index of the high refractive layer by 0.1 or more. The first metal oxide particle and the second metal oxide particle are different metal oxides.Type: GrantFiled: October 26, 2011Date of Patent: October 18, 2016Assignee: KONICA MINOLTA, INC.Inventors: Akihito Hisamitsu, Yasuo Taima, Shinichi Suzuki, Noriyuki Kokeguchi
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Publication number: 20150301247Abstract: To provide an optical reflection film which has high reflectance of light with desired wavelength and reduced haze, by controlling the level of interlayer mingling to suppress the disturbances of the interface, even when the optical reflection film is produced by multilayer coating, in particular, by simultaneous multilayer coating which allows a high production efficiency. Provided is an optical reflection film which has a base and, formed thereon, at least one unit obtained by laminating a high refractive index layer and a low refractive index layer, in which the low refractive index layer contains silica particles onto which a silanol-modified polyvinyl alcohol has been adsorbed.Type: ApplicationFiled: October 30, 2013Publication date: October 22, 2015Applicant: Konica Minolta, Inc.Inventor: Yasuo Taima
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Patent number: 9151874Abstract: The present invention provides a near-infrared reflective film and a near-infrared reflector, which can be used over large areas and are flexible, and have low haze and high visible light transmittance. The near-infrared reflective film comprises at least one unit composed of a high refractive index layer and low refractive index layer on a substrate, and is characterized in that the refractive index difference between an adjacent high refractive index layer and low refractive index layer is at least 0.1, and said high refractive index layer contains at least one type of compound (A) selected from: 1) a rutile-type titanium oxide having a volume-average particle diameter of not more than 100 nm; 2) a water-soluble polymer; and 3) the following group of compounds. Group of compounds: a carboxyl group-containing compound, hydroxamic acids, pyridine derivatives.Type: GrantFiled: July 7, 2011Date of Patent: October 6, 2015Assignee: KONICA MINOLTA HOLDINGS, INC.Inventors: Yasuo Taima, Shinichi Suzuki, Takeo Arai, Akihisa Nakajima, Akihito Hisamitsu
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Publication number: 20140355107Abstract: An object of the present invention is to provide an infrared shielding film which has high infrared shielding effect for every incident angle of sunlight, and a laminated glass using the infrared shielding film. Provided is an infrared shielding film including at least one unit of a high refractive index layer and a low refractive index layer stacked, which is characterized in that the high refractive index layer includes at least one selected from the group consisting of a polyester, a polycarbonate, and a poly(meth)acrylate, and metal oxide particles.Type: ApplicationFiled: December 7, 2012Publication date: December 4, 2014Applicant: Konica Minolta, Inc.Inventor: Yasuo Taima
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Publication number: 20140313573Abstract: Provided are an optical reflection film that uses an aqueous coating liquid for generating at refractive index, has a low production cost, is able to have a large area, and has a high coating film thermal stability, a method of manufacturing the optical reflection film, and an optical reflection body provided with the optical reflection film.Type: ApplicationFiled: June 22, 2012Publication date: October 23, 2014Applicant: KONICA MINOLTA , INC.Inventors: Akihisa Nakajima, Yasuo Taima
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Patent number: 8686630Abstract: Disclosed are an organic electroluminescence element with significantly improved light extraction efficiency and improved film properties and an illumination device that uses said element. The organic electroluminescence element has a transparent electrode, an organic electroluminescence layer, and a cathode sequentially stacked on a transparent base material. The element is characterized in that the transparent base material is a transparent resin film, there is a hard coat layer on both sides, the respective refractive indices satisfy the expressions (1)-(4), and there is a function to scatter light to the light emission side with respect to the organic electroluminescence layer. Expression (1): ?0.2?n(H1)?n(A)?0.2, Expression (2): ?0.1?n(H1)?n(B)?0.1, Expression (3): ?0.1?n(H2)?n(B)?0.1, Expression (4): ?0.1?n(H1)?n(H2)?0.1.Type: GrantFiled: February 3, 2010Date of Patent: April 1, 2014Assignee: Konica Minolta Holdings, Inc.Inventors: Kunimasa Hiyama, Yasuo Taima, Takeshi Ono
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Publication number: 20130215501Abstract: [Problem] An object of the present invention is to obtain a near-infrared reflective film that is low-cost, that can be produced with a large area, in which, in the optical properties, interference unevenness is particularly small, and which has excellent film physical properties. [Solving Means] Provided is a near-infrared reflective film composed of a lamination unit including: a high refractive layer containing a first metal oxide particle and a first water-soluble polymer, a low refractive layer containing a second metal oxide particle and a second water-soluble polymer and a mixed layer located between the high refractive layer and the low refractive layer and which contains the first metal oxide particle, the second metal oxide particle and a third water-soluble polymer, wherein the refractive index of the low refractive layer is smaller than the refractive index of the high refractive layer by 0.Type: ApplicationFiled: October 26, 2011Publication date: August 22, 2013Applicant: KONICA MINOLTA , INC.Inventors: Akihito Hisamitsu, Yasuo Taima, Shinichi Suzuki, Noriyuki Kokeguchi
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Publication number: 20130100523Abstract: The present invention provides a near-infrared reflective film and a near-infrared reflector, which can be used over large areas and are flexible, and have low haze and high visible light transmittance. The near-infrared reflective film comprises at least one unit composed of a high refractive index layer and low refractive index layer on a substrate, and is characterized in that the refractive index difference between an adjacent high refractive index layer and low refractive index layer is at least 0.1, and said high refractive index layer contains at least one type of compound (A) selected from: 1) a rutile-type titanium oxide having a volume-average particle diameter of not more than 100 nm; 2) a water-soluble polymer; and 3) the following group of compounds. Group of compounds: a carboxyl group-containing compound, hydroxamic acids, pyridine derivatives.Type: ApplicationFiled: July 7, 2011Publication date: April 25, 2013Applicant: KONICA MINOLTA HOLDINGS, INC.Inventors: Yasuo Taima, Shinichi Suzuki, Takeo Arai, Akihisa Nakajima, Akihito Hisamitsu
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Publication number: 20130062654Abstract: Disclosed is a novel light extraction sheet which not only improves light extraction efficiency but suppresses color change with the angle of observation, an organic EL dement employing this light extraction sheet, and art illumination device employing the element. The light extraction sheet is featured in that it comprises a transparent resin film and provided thereon, a light scatter layer containing a binder resin and light scattering particles with an average particle size of front 0.2 to 1.0 ?m dispersed in the binder resin and a concavo-convex layer containing a binder resin and spherical particles with an. average particle size of from 3 to 10 ?m.Type: ApplicationFiled: May 17, 2011Publication date: March 14, 2013Applicant: KONICA MINOLTA HOLDINGS, INC.Inventors: Yasuo Taima, Kunimasa Hiyama
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Publication number: 20110279024Abstract: Disclosed are an organic electroluminescence element with significantly improved light extraction efficiency and improved film properties and an illumination device that uses said element. The organic electroluminescence element has a transparent electrode, an organic electroluminescence layer, and a cathode sequentially stacked on a transparent base material. The element is characterized in that the transparent base material is a transparent resin film, there is a hard coat layer on both sides, the respective refractive indices satisfy the expressions (1)-(4), and there is a function to scatter light to the light emission side with respect to the organic electroluminescence layer. Expression (1): ?0.2?n(H1)?n(A)?0.2, Expression (2): ?0.1?n(H1)?n(B)?0.1, Expression (3): ?0.1?n(H2)?n(B)?0.1, Expression (4): ?0.1?n(H1)?n(H2)?0.1.Type: ApplicationFiled: February 3, 2010Publication date: November 17, 2011Applicant: KONICA MINOLTA HOLDINGS, INC.Inventors: Kunimasa Hiyama, Yasuo Taima, Takeshi Ono
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Publication number: 20110262750Abstract: Disclosed is a resin material for optical use, which has refractive index and transparency suitable for optical devices, while having extremely small change in refractive index dependent on temperature. In addition, the resin material for optical use is excellent in forming suitability and heat resistance after a reflow process. Also disclosed is an optical device using a resin material for optical use. Specifically disclosed is a transparent resin material for optical use which is composed of a curable resin containing inorganic fine particles whose surfaces are modified with an organic compound. This transparent resin material for optical use is characterized in that the inorganic fine particles are composed of an amorphous silica containing a metal oxide crystal, and have an average particle diameter of not less than 1 nm but more than 50 nm.Type: ApplicationFiled: July 3, 2008Publication date: October 27, 2011Inventor: Yasuo Taima
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Publication number: 20110070402Abstract: Disclosed is an optical element comprising a functional layer composed mainly of an inorganic component on a surface thereof. The functional layer provided on the surface of the optical element is not broken or deformed even through a reflow treatment process. Also disclosed is a process for producing an electronic equipment, comprising placing an image pick-up device comprising the optical element together with an electronic component on a substrate and mounting the image pick-up device and the electronic component on the substrate by a reflow treatment process. The optical element comprises a base material containing a curing resin and inorganic fine particles and a functional layer composed mainly of an inorganic component provided on the surface of the base material. The optical element is characterized in that at least one type of inorganic fine particles is present on the surface of the base material, and the surface roughness is not less than 3 nm and not more than 100 nm.Type: ApplicationFiled: May 12, 2009Publication date: March 24, 2011Applicant: Konica Minolta Opto, Inc.Inventor: Yasuo Taima
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Publication number: 20100190919Abstract: Disclosed is a resin material for optical purposes, which has high light permeability and high refractive index stability against temperature variation. Also disclosed is an optical element utilizing the resin material. The resin material for optical purposes comprises a curable resin and an inorganic microparticle comprising two or more metal oxides having different refractive indexes and dispersed in the curable resin, wherein the inorganic microparticle has a refractive index distribution, has the surface treated with a surface-treating agent, and is at least partially modified with a surface-modifying agent having a polymerizable functional group, and wherein the refractive index of the curable resin after being cured (nh) and the refractive index of the inorganic microparticle (ng) meet the requirement represented by the formula (1).Type: ApplicationFiled: August 5, 2008Publication date: July 29, 2010Applicant: KONICA MINOLTA OPTO, INC.Inventors: Akiyoshi Kimura, Hideaki Wakamatsu, Yasuo Taima
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Patent number: 7649035Abstract: A thermoplastic composite material comprising: (i) a thermoplastic resin comprising an organic polymer; and (ii) particles having an average diameter of 1-30 nm dispersed in the thermoplastic resin, wherein the particles contain two or more kinds of inorganic particles having different refractive indexes.Type: GrantFiled: December 7, 2005Date of Patent: January 19, 2010Assignee: Konica Minolta Opto, Inc.Inventor: Yasuo Taima
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Patent number: 7545724Abstract: The present invention relates to an optical element for an optical pickup device, wherein the optical element is produced by molding a resin material, in which inorganic particles having a diameter of not more than 30 nm are dispersed in a plastic resin, an optical pickup device using the optical element, and a producing method of the optical element.Type: GrantFiled: July 7, 2004Date of Patent: June 9, 2009Assignee: Konica Minolta Opto, Inc.Inventors: Yuichi Atarashi, Kiyoshi Yamashita, Yasuo Taima
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Patent number: 7364841Abstract: A silver salt photothermographic dry imaging material wherein said material has photographic speeds (1) and (2) determined based on the predetermined conditions and the photographic speed (2) is not more than 1/10 of the photographic speed (1), and the coefficient of determination value R2 of the linear regression line is 0.998-1.000, which is obtained from the predetermined density points having a* and b* arranged in two-dimensional coordinates in which a* is used as the abscicca and b* is used as the coordinate of the CIE 1976 (L*a*b*) color space, b* of the intersection point of the linear regression line with the ordinate is ?5-5, and gradient (a*/b*) is 0.7-2.5.Type: GrantFiled: August 30, 2006Date of Patent: April 29, 2008Assignee: Konica Minolta & Medical Graphic, Inc.Inventors: Tetsuya Suzuki, Hideki Takiguchi, Toshiyuki Marui, Kazuhiko Fujikura, Kazuhito Ihara, Yasuo Taima, Kenji Ohnuma, Hiroto Ito
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Publication number: 20070003886Abstract: A silver salt photothermographic dry imaging material wherein said material has photographic speeds (1) and (2) determined based on the predetermined conditions and the photographic speed (2) is not more than 1/10 of the photographic speed (1), and the coefficient of determination value R2 of the linear regression line is 0.998-1.000, which is obtained from the predetermined density points having a* and b* arranged in two-dimensional coordinates in which a* is used as the abscicca and b* is used as the coordinate of the CIE 1976 (L*a*b) color space, b* of the intersection point of the linear regression line with the ordinate is ?5-5, and gradient (a*/b*) is 0.7-2.5.Type: ApplicationFiled: August 30, 2006Publication date: January 4, 2007Applicant: KONICA MINOLTA MEDICAL & GRAPHIC, INC.Inventors: Tetsuya Suzuki, Hideki Takiguchi, Toshiyuki Marui, Kazuhiko Fujikura, Kazuhito Ihara, Yasuo Taima, Kenji Ohnuma, Hiroto Ito
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Patent number: 7138225Abstract: A silver salt photothermographic dry imaging material wherein said material has photographic speeds (1) and (2) determined based on the predetermined conditions and the photographic speed (2) is not more than 1/10 of the photographic speed (1), and the coefficient of determination value R2 of the linear regression line is 0.998–1.000, which is obtained from the predetermined density points having a* and b* arranged in two-dimensional coordinates in which a* is used as the abscissa and b* is used as the coordinate of the CIE 1076 (L*a*b*) color space, b* of the intersection point of the linear regression line with the ordinate is ?5–5, and gradient (a*/b*) is 0.7–2.5.Type: GrantFiled: September 2, 2004Date of Patent: November 21, 2006Assignee: Konica Minolta Medical & Graphic, Inc.Inventors: Tetsuya Suzuki, Hideki Takiguchi, Toshiyuki Marui, Kazuhiko Fujikura, Kazuhito Ihara, Yasuo Taima, Kenji Ohnuma, Hiroto Ito
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Publication number: 20060128869Abstract: A thermoplastic composite material comprising: (i) a thermoplastic resin comprising an organic polymer; and (ii) particles having an average diameter of 1-30 nm dispersed in the thermoplastic resin, wherein the particles contain two or more kinds of inorganic particles having different refractive indexes.Type: ApplicationFiled: December 7, 2005Publication date: June 15, 2006Inventor: Yasuo Taima