Patents by Inventor Kenichi Harai
Kenichi Harai 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: 11322269Abstract: An electroconductive film including a resin layer and an electroconductive layer, wherein the resin layer has a storage elastic modulus at 25° C. of more than 10 MPa and less than 1,000 MPa, and the electroconductive layer has a surface resistance value of 1,000 ?/sq. or less.Type: GrantFiled: June 23, 2017Date of Patent: May 3, 2022Assignee: ZEON CORPORATIONInventors: Kenichi Harai, Satoshi Tazaki, Kazuyuki Obuchi
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Patent number: 10464272Abstract: A step of forming a layered body including a resin layer (a) containing a resin A having positive intrinsic birefringence and a resin layer (b) containing a resin B having negative intrinsic birefringence, the resin layer (b) being provided on one side of the resin layer (a); a first stretching step of stretching the layered body in one direction at a temperature T1; and a second stretching step of, after the first stretching step, stretching the layered body in another direction that is approximately orthogonal to the previous stretching direction at a temperature T2 which is lower than the temperature T1 to obtain a phase difference plate are performed.Type: GrantFiled: March 16, 2016Date of Patent: November 5, 2019Assignee: ZEON CORPORATIONInventors: Taku Hatano, Kenichi Harai
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Publication number: 20190334116Abstract: A method for producing a sealing material is provided. The method includes the steps of: molding a resin for forming the sealing material to obtain a resin film; and processing a surface of the resin film to form a bonding surface having an arithmetic average roughness of 10 nm or more and 1,000 nm or less. There is also provided a method for producing a light-emitting device, comprising the steps of: bonding the bonding surface of the sealing material thus produced to a light-emitting element; and bonding a barrier member to a surface of the sealing material on a side opposite to the bonding surface.Type: ApplicationFiled: July 8, 2019Publication date: October 31, 2019Applicant: ZEON CORPORATIONInventor: Kenichi HARAI
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Publication number: 20190139673Abstract: An electroconductive film including a resin layer and an electroconductive layer, wherein the resin layer has a storage elastic modulus at 25° C. of more than 10 MPa and less than 1,000 MPa, and the electroconductive layer has a surface resistance value of 1,000 ?/sq. or less.Type: ApplicationFiled: June 23, 2017Publication date: May 9, 2019Applicant: ZEON CORPORATIONInventors: Kenichi HARAI, Satoshi TAZAKI, Kazuyuki OBUCHI
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Patent number: 10156662Abstract: A laminate film including: a substrate film made of an alicyclic olefin resin; and a protection film made of an alicyclic olefin resin and disposed directly on one surface of the substrate film, wherein a surface of the substrate film on a side brought into contact with the protection film, or a surface of the protection film on a side brought into contact with the substrate film is a surface to which activation treatment is applied.Type: GrantFiled: December 25, 2014Date of Patent: December 18, 2018Assignee: ZEON CORPORATIONInventor: Kenichi Harai
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Publication number: 20180102500Abstract: A sealing material for sealing a light-emitting element, wherein: the sealing material has a bonding surface capable of being in contact with the light-emitting element; and the bonding surface has an arithmetic average roughness of 10 nm or more and 1,000 nm or less. The sealing material preferably has a storage elastic modulus at 90° C. of 10 MPa or more. The sealing material preferably contains a metal compound. A method for producing a light-emitting device, including the steps of: bonding a bonding surface of the sealing material to a light-emitting element; and bonding a barrier member to a surface of the sealing material on a side opposite to the bonding surface.Type: ApplicationFiled: March 25, 2016Publication date: April 12, 2018Applicant: ZEON CORPORATIONInventor: Kenichi HARAI
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Patent number: 9624405Abstract: An optical laminate body including: a substrate; and an adhesive layer formed on substrate, wherein the optical laminate body is used such that a surface thereof on the adhesive layer side is attached to a glass-made light-emitting surface member, a relationship n3?n2?n1 is satisfied where n1 is a refractive index of the glass that constitutes light-emitting surface member, n2 is a refractive index of the adhesive layer, and n3 is a refractive index of the substrate, the adhesive layer is composed of an acrylic adhesive composition containing an acrylic resin (A), and the acrylic resin (A) is a copolymer of a copolymerizable component [I] containing 40% by weight to 93% by weight of an aromatic ring-containing monomer (a1), and 7% by weight to 60% by weight of a hydroxy group-containing monomer (a2), the weight average molecular weight of the acrylic resin (A) being 200,000 or less.Type: GrantFiled: December 18, 2014Date of Patent: April 18, 2017Assignee: ZEON CORPORATIONInventors: Yasunori Il, Kenichi Harai
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Publication number: 20160326405Abstract: An optical laminate body including: a substrate; and an adhesive layer formed on substrate, wherein the optical laminate body is used such that a surface thereof on the adhesive layer side is attached to a glass-made light-emitting surface member, a relationship n3?n2?n1 is satisfied where n1 is a refractive index of the glass that constitutes light-emitting surface member, n2 is a refractive index of the adhesive layer, and n3 is a refractive index of the substrate, the adhesive layer is composed of an acrylic adhesive composition containing an acrylic resin (A), and the acrylic resin (A) is a copolymer of a copolymerizable component [I] containing 40% by weight to 93% by weight of an aromatic ring-containing monomer (a1), and 7% by weight to 60% by weight of a hydroxy group-containing monomer (a2), the weight average molecular weight of the acrylic resin (A) being 200,000 or less.Type: ApplicationFiled: December 18, 2014Publication date: November 10, 2016Applicant: ZEON CORPORATIONInventors: Yasunori II, Kenichi HARAI
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Publication number: 20160313476Abstract: A laminate film including: a substrate film made of an alicyclic olefin resin; and a protection film made of an alicyclic olefin resin and disposed directly on one surface of the substrate film, wherein a surface of the substrate film on a side brought into contact with the protection film, or a surface of the protection film on a side brought into contact with the substrate film is a surface to which activation treatment is applied.Type: ApplicationFiled: December 25, 2014Publication date: October 27, 2016Applicant: ZEON CORPORATIONInventor: Kenichi HARAI
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Publication number: 20160193794Abstract: A step of forming a layered body including a resin layer (a) containing a resin A having positive intrinsic birefringence and a resin layer (b) containing a resin B having negative intrinsic birefringence, the resin layer (b) being provided on one side of the resin layer (a); a first stretching step of stretching the layered body in one direction at a temperature T1; and a second stretching step of, after the first stretching step, stretching the layered body in another direction that is approximately orthogonal to the previous stretching direction at a temperature T2 which is lower than the temperature T1 to obtain a phase difference plate are performed.Type: ApplicationFiled: March 16, 2016Publication date: July 7, 2016Applicant: ZEON CORPORATIONInventors: Taku HATANO, Kenichi HARAI
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Patent number: 9321227Abstract: A step of forming a layered body including a resin layer (a) containing a resin A having positive intrinsic birefringence and a resin layer (b) containing a resin B having negative intrinsic birefringence, the resin layer (b) being provided on one side of the resin layer (a); a first stretching step of stretching the layered body in one direction at a temperature T1; and a second stretching step of, after the first stretching step, stretching the layered body in another direction that is approximately orthogonal to the previous stretching direction at a temperature T2 which is lower than the temperature T1 to obtain a phase difference plate are performed.Type: GrantFiled: August 31, 2011Date of Patent: April 26, 2016Assignee: ZEON CORPORATIONInventors: Taku Hatano, Kenichi Harai
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Publication number: 20150349296Abstract: An optical-member adhesive composition, including an adhesive material, reactive modified metal oxide particles having a volume average particle diameter of 1 to 500 nm, and organic light diffusing particles, and optionally including a silane coupling agent and a plasticizer; an optical-member adhesive layer formed from the optical-member adhesive composition; and a surface light source device including the specific light diffusion layer.Type: ApplicationFiled: January 16, 2014Publication date: December 3, 2015Applicant: ZEON CORPORATIONInventors: Hiromu MASHIMA, Kenichi HARAI
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Patent number: 9109759Abstract: A light-emitting device having an organic EL element that has a light-emitting surface and emits light from the light-emitting surface, and a structure layer disposed directly or indirectly on the light-emitting surface. The structure layer has, on a surface thereof that is opposite to the organic electroluminescent element, a concavo-convex structure including a first streak array extending in a first direction that is parallel to the surface, a second streak array extending in a second direction that is parallel to the surface and intersects with the first direction, and a third streak array extending in a third direction that is parallel to the surface and intersects with the first direction and the second direction.Type: GrantFiled: December 20, 2011Date of Patent: August 18, 2015Assignee: ZEON CORPORATIONInventors: Hiroyasu Inoue, Kenichi Harai
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Patent number: 9112182Abstract: A light-emitting device comprising: an organic electroluminescence element that has a light-emitting surface and emits light from the light-emitting surface; and a structure layer that is provided directly or indirectly on the light-emitting surface of the organic electroluminescence element, wherein the structure layer has a concavo-convex structure on a surface of the structure layer, the surface being opposite to the organic electroluminescence element, the concavo-convex structure including a first streak array extending in a first direction that is parallel to the surface, a second streak array extending in a second direction that is parallel to the surface and intersects the first direction, and a third streak array extending in a third direction that is parallel to the surface and intersects the first direction and the second direction, the concavo-convex structure includes flat surface portions parallel to the light-emitting surface and an inclined surface portion that is inclined with respect to theType: GrantFiled: March 27, 2012Date of Patent: August 18, 2015Assignee: ZEON CORPORATIONInventors: Kenichi Harai, Hiroyasu Inoue
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Patent number: 9079350Abstract: A phase difference plate is manufactured by a method including a step of forming a multilayer body by co-extruding or co-casting a resin A having a positive intrinsic birefringence value and a resin B having a negative intrinsic birefringence value, the multilayer body including a layer “a” containing the resin A and a layer “b” containing the resin B; a step of stretching the multilayer body at a temperature T1 in one direction; and a step of subsequently stretching the multilayer body at temperature T2 lower than the temperature T1 in a direction that is approximately orthogonal to the previous stretching direction. The resulting phase difference plate has specific in-plane retardation Rea of the layer “a”, retardation Rta in the thickness direction thereof, in-plane retardation Reb of the layer “b”, and retardation Rtb in the thickness direction thereof.Type: GrantFiled: July 28, 2010Date of Patent: July 14, 2015Assignee: ZEON CORPORATIONInventors: Taku Hatano, Kenichi Harai
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Patent number: 9018836Abstract: A surface light source device including an organic EL element of a double-side emission type and a light output surface structure layer provided on at least one surface of the organic EL element, wherein the light output surface structure layer includes a concavo-convex structure on a surface opposite to the organic electroluminescent element, the concavo-convex structure having flat surface portions parallel to the surface and an inclined surface portion tilted relative to the flat surface portions, and a projected area formed by projecting the inclined surface portion in a direction perpendicular to the flat surface portions onto a plane parallel to the flat surface portions is not more than 0.1 times a total area of the flat surface portions.Type: GrantFiled: June 23, 2011Date of Patent: April 28, 2015Assignee: Zeon CorporationInventors: Kenichi Harai, Hiroyasu Inoue
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Patent number: 8866130Abstract: The light output surface structure layer has a concavo-convex structure on a surface opposite to the organic EL element. The concavo-convex structure includes flat surface portions parallel to one surface of the organic EL element and an inclined surface portion tilted relative to the flat surface portions. The projected area which is formed by projecting the inclined surface portion in a direction perpendicular to the flat surface portions onto a plane parallel to the flat surface portions is equal to or less than 0.1 times the total area of the flat surface portions. On a cross section of a flat surface portion cut along a plane parallel to the width and thickness directions thereof, the ratio H/W is 1 or greater and 2.5 or less, where H and W are the height and the width thereof, respectively.Type: GrantFiled: September 26, 2012Date of Patent: October 21, 2014Assignee: Zeon CorporationInventor: Kenichi Harai
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Patent number: 8829784Abstract: A surface light source device includes an organic electroluminescent element including a luminescent layer and a light-emitting surface structure layer disposed on one of the surfaces of the organic electroluminescent element. In the surface light source device, the light-emitting surface structure layer includes a concave-convex structure provided on a surface thereof on the side toward a device light-emitting surface, and the concave-convex structure includes a plurality of concave portions having oblique surfaces and flat portions disposed around the concave portions. The flat portions and/or the concave portions have a size difference in one or more of their width, height, depth, and spacing, the size difference being larger than the difference that causes interference of one or both of emitted light and reflected light.Type: GrantFiled: June 11, 2010Date of Patent: September 9, 2014Assignee: Zeon CorporationInventors: Hiroyasu Inoue, Toshihiko Hori, Kenichi Harai
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Patent number: 8643259Abstract: An optical sheet comprising: a transparent substrate having a first surface S1 and a second surface S2; a first light diffusion layer provided on a first surface S1 side of the transparent substrate; and a second light diffusion layer provided on a second surface S2 side of the transparent substrate, wherein a haze x1 (%) of the first light diffusion layer and a haze x2 (%) of the second light diffusion layer satisfy f(x1)/(f(x1)+f(x2))?2/3 (where when x?88, a function f(x)=1.9×(ln(1?x/90))2, and when x>88, the function f(x)=22.5x?1952.5) and (f(x1)+f(x2))?12; and a surface light source device having the same.Type: GrantFiled: December 17, 2010Date of Patent: February 4, 2014Assignee: Zeon CorporationInventors: Hiroyasu Inoue, Kenichi Harai
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Publication number: 20140014938Abstract: A light-emitting device comprising: an organic electroluminescence element that has a light-emitting surface and emits light from the light-emitting surface; and a structure layer that is provided directly or indirectly on the light-emitting surface of the organic electroluminescence element, wherein the structure layer has a concavo-convex structure on a surface of the structure layer, the surface being opposite to the organic electroluminescence element, the concavo-convex structure including a first streak array extending in a first direction that is parallel to the surface, a second streak array extending in a second direction that is parallel to the surface and intersects the first direction, and a third streak array extending in a third direction that is parallel to the surface and intersects the first direction and the second direction, the concavo-convex structure includes flat surface portions parallel to the light-emitting surface and an inclined surface portion that is inclined with respect to theType: ApplicationFiled: March 27, 2012Publication date: January 16, 2014Applicant: ZEON CORPORATIONInventors: Kenichi Harai, Hiroyasu Inoue