Patents by Inventor Shunsuke Yamanaka
Shunsuke Yamanaka 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: 11150503Abstract: A liquid crystal display device including, sequentially in the following order: a light source unit, a rear side polarizer, a liquid crystal cell, a front side polarizer, and a viewing angle expansion film. Alternatively, a liquid crystal display device including, sequentially in the following order: a light source unit, a rear side polarizer, a liquid crystal cell, a viewing angle expansion film, and a front side polarizer. The liquid crystal display device optionally includes a rear side optical film provided between the rear side polarizer and the liquid crystal cell; and a front side optical film provided between the front side polarizer and the liquid crystal cell.Type: GrantFiled: December 14, 2016Date of Patent: October 19, 2021Assignee: ZEON CORPORATIONInventors: Hiroyuki Yoshimi, Shunsuke Yamanaka
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Patent number: 10895783Abstract: A multilayer film including: a first long-length substrate; and an optically anisotropic layer that is formed directly on the first substrate and contains cured liquid-crystal molecules, wherein the first substrate has an orientation-controlling force caused by stretching, and a slow axis of the first substrate is different from a lengthwise direction of the first substrate; an optically anisotropic laminate, a circular polarizing plate, and an organic EL display device having the anisotropic layer; as well as manufacturing method thereof.Type: GrantFiled: February 13, 2019Date of Patent: January 19, 2021Assignee: ZEON CORPORATIONInventors: Shunsuke Yamanaka, Masakazu Saito, Hiromasa Hashimoto
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Patent number: 10663635Abstract: The present invention provides an optical film containing an additive. The optical film includes a high concentration portion containing the additive, and a low concentration portion containing the additive at a concentration lower than the high concentration portion. The low concentration portion is provided on both sides of the high concentration portion in a thickness direction of the optical film, and the low concentration portion is provided on both sides of the high concentration portion in a width direction of the optical film.Type: GrantFiled: September 10, 2015Date of Patent: May 26, 2020Assignee: ZEON CORPORATIONInventors: Hyota Nakahori, Shunsuke Yamanaka
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Patent number: 10656468Abstract: Disclosed is a display device with a capacitive touch panel including a laminate between a display panel and a cover layer, the laminate having a viewing-side polarizing plate; a first conductive layer, a dielectric layer and a second conductive layer constituting a capacitive touch sensor; and a substrate, in which the first conductive layer, dielectric layer, second conductive layer, and substrate are positioned closer to the cover layer than is the viewing-side polarizing plate, the first conductive layer is formed on one surface of the to substrate, the dielectric layer is formed on a surface of the first conductive layer opposite to the substrate side, the second conductive layer is formed on a surface of the dielectric layer opposite to the first conductive layer side, the substrate has an optical film with a phase difference of (2n?1)?/4, where n is a positive integer, the viewing-side polarizing plate has a polarizing film, and a slow axis of the optical film intersects a transmission axis of the polaType: GrantFiled: January 7, 2019Date of Patent: May 19, 2020Assignee: ZEON CORPORATIONInventors: Tetsuya Toyoshima, Shunsuke Yamanaka
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Patent number: 10353527Abstract: A display device with a capacitive touch panel includes a laminate between a display panel and a cover layer, the laminate having a circularly polarizing plate, a first conductive layer, and a second conductive layer. The circularly polarizing plate includes a substrate and a polarizing plate. The first conductive layer, the second conductive layer, and the substrate are positioned closer to the display panel than is the polarizing plate, and the first conductive layer is positioned closer to the cover layer than is the second conductive layer. The first and second conductive layers are arranged apart from each other in a stacking direction so as to form a capacitive touch sensor. One of the first and second conductive layers is formed on one surface of the substrate. The substrate has an optical film with a phase difference of ?/4. The polarizing plate has a polarizing film.Type: GrantFiled: October 1, 2018Date of Patent: July 16, 2019Assignee: ZEON CORPORATIONInventors: Tetsuya Toyoshima, Shunsuke Yamanaka
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Publication number: 20190187351Abstract: A multilayer film including: a first long-length substrate; and an optically anisotropic layer that is formed directly on the first substrate and contains cured liquid-crystal molecules, wherein the first substrate has an orientation-controlling force caused by stretching, and a slow axis of the first substrate is different from a lengthwise direction of the first substrate; an optically anisotropic laminate, a circular polarizing plate, and an organic EL display device having the anisotropic layer; as well as manufacturing method thereof.Type: ApplicationFiled: February 13, 2019Publication date: June 20, 2019Applicant: ZEON CORPORATIONInventors: Shunsuke YAMANAKA, Masakazu SAITO, Hiromasa HASHIMOTO
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Publication number: 20190171051Abstract: Disclosed is a display device with a capacitive touch panel including a laminate between a display panel and a cover layer, the laminate having a viewing-side polarizing plate; a first conductive layer, a dielectric layer and a second conductive layer constituting a capacitive touch sensor; and a substrate, in which the first conductive layer, dielectric layer, second conductive layer, and substrate are positioned closer to the cover layer than is the viewing-side polarizing plate, the first conductive layer is formed on one surface of the to substrate, the dielectric layer is formed on a surface of the first conductive layer opposite to the substrate side, the second conductive layer is formed on a surface of the dielectric layer opposite to the first conductive layer side, the substrate has an optical film with a phase difference of (2n?1)?/4, where n is a positive integer, the viewing-side polarizing plate has a polarizing film, and a slow axis of the optical film intersects a transmission axis of the polaType: ApplicationFiled: January 7, 2019Publication date: June 6, 2019Applicant: ZEON CORPORATONInventors: Tetsuya TOYOSHIMA, Shunsuke YAMANAKA
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Patent number: 10261227Abstract: A method for producing a retardation film comprising the steps of: co-extruding or simultaneously casting a thermoplastic resin A and a thermoplastic resin B to obtain a laminated film comprising a layer of the thermoplastic resin A and a layer of the thermoplastic resin B; and uniaxially stretching the laminated film at least twice to cross a molecular orientation axis in the layer of the thermoplastic resin A and a molecular orientation axis in the layer of the thermoplastic resin B each other at almost right angles.Type: GrantFiled: May 1, 2015Date of Patent: April 16, 2019Assignee: ZEON CORPORATIONInventors: Taku Hatano, Kohei Arakawa, Shunsuke Yamanaka
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Patent number: 10216346Abstract: A display device with a capacitive touch panel includes a laminate between a display panel and a cover layer, the laminate having a circularly polarizing plate, a first conductive layer, and a second conductive layer. The circularly polarizing plate includes a substrate and a polarizing plate. The first conductive layer, the second conductive layer, and the substrate are positioned closer to the display panel than is the polarizing plate, and the first conductive layer is positioned closer to the cover layer than is the second conductive layer. The first and second conductive layers are arranged apart from each other in a stacking direction so as to form a capacitive touch sensor. One of the first and second conductive layers is formed on one surface of the substrate. The substrate has an optical film with a phase difference of ?/4. The polarizing plate has a polarizing film.Type: GrantFiled: November 27, 2017Date of Patent: February 26, 2019Assignee: ZEON CORPORATIONInventors: Tetsuya Toyoshima, Shunsuke Yamanaka
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Patent number: 10209567Abstract: Disclosed is a display device with a capacitive touch panel including a laminate between a display panel and a cover layer, the laminate having a viewing-side polarizing plate; a first conductive layer, a dielectric layer and a second conductive layer constituting a capacitive touch sensor; and a substrate, in which the first conductive layer, dielectric layer, second conductive layer, and substrate are positioned closer to the cover layer than is the viewing-side polarizing plate, the first conductive layer is formed on one surface of the substrate, the dielectric layer is formed on a surface of the first conductive layer opposite to the substrate side, the second conductive layer is formed on a surface of the dielectric layer opposite to the first conductive layer side, the substrate has an optical film with a phase difference of (2n?1)?/4, where n is a positive integer, the viewing-side polarizing plate has a polarizing film, and a slow axis of the optical film intersects a transmission axis of the polarizType: GrantFiled: November 28, 2017Date of Patent: February 19, 2019Assignee: ZEON CORPORATIONInventors: Tetsuya Toyoshima, Shunsuke Yamanaka
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Publication number: 20190042027Abstract: A display device with a capacitive touch panel includes a laminate between a display panel and a cover layer, the laminate having a circularly polarizing plate, a first conductive layer, and a second conductive layer. The circularly polarizing plate includes a substrate and a polarizing plate. The first conductive layer, the second conductive layer, and the substrate are positioned closer to the display panel than is the polarizing plate, and the first conductive layer is positioned closer to the cover layer than is the second conductive layer. The first and second conductive layers are arranged apart from each other in a stacking direction so as to form a capacitive touch sensor. One of the first and second conductive layers is formed on one surface of the substrate. The substrate has an optical film with a phase difference of ?/4. The polarizing plate has a polarizing film.Type: ApplicationFiled: October 1, 2018Publication date: February 7, 2019Applicant: ZEON CORPORATIONInventors: Tetsuya TOYOSHIMA, Shunsuke YAMANAKA
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Patent number: 10175402Abstract: A phase difference film layered body is obtained by stretching a film before stretching, the film before stretching including: a P1 layer formed of a resin p1 containing polyphenylene ether having a positive intrinsic birefringence value and a polystyrene-based polymer having a negative intrinsic birefringence value and having a syndiotactic structure; and a P2 layer disposed in contact with the P1 layer and formed of a resin p2 containing an acrylic resin or an alicyclic structure-containing polymer. In the resin p1, the weight ratio of (the content of the polyphenylene ether)/(the content of the polystyrene-based polymer) is 35/65 to 45/55. A method for producing the phase difference film layered body and a method for producing a phase difference film using the phase difference film layered body are also provided.Type: GrantFiled: February 26, 2013Date of Patent: January 8, 2019Assignee: ZEON CORPORATIONInventors: Takashi Morita, Kohei Fujii, Tomokazu Kinohira, Shunsuke Yamanaka, Taku Hatano
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Patent number: 10175831Abstract: Disclosed is a display device with a capacitive touch panel including a laminate between a display panel and a cover layer, the laminate having a viewing-side polarizing plate, a first conductive layer, a second conductive layer, and a substrate, in which the substrate has an optical film with a phase difference of (2n?1)?/4, where n is a positive integer, the viewing-side polarizing plate has a polarizing film, and a slow axis of the optical film intersects a transmission axis of the polarizing film at an angle of about 45° as viewed in the stacking direction.Type: GrantFiled: April 9, 2014Date of Patent: January 8, 2019Assignee: ZEON CORPORATIONInventors: Tetsuya Toyoshima, Shunsuke Yamanaka
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Publication number: 20180348568Abstract: A liquid crystal display device including, sequentially in the following order: a light source unit, a rear side polarizer, a liquid crystal cell, a front side polarizer, and a viewing angle expansion film. Alternatively, a liquid crystal display device including, sequentially in the following order: a light source unit, a rear side polarizer, a liquid crystal cell, a viewing angle expansion film, and a front side polarizer. The liquid crystal display device optionally includes a rear side optical film provided between the rear side polarizer and the liquid crystal cell; and a front side optical film provided between the front side polarizer and the liquid crystal cell.Type: ApplicationFiled: December 14, 2016Publication date: December 6, 2018Applicant: ZEON CORPORATIONInventors: Hiroyuki YOSHIMI, Shunsuke YAMANAKA
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Publication number: 20180107043Abstract: Disclosed is a display device with a capacitive touch panel including a laminate between a display panel and a cover layer, the laminate having a viewing-side polarizing plate; a first conductive layer, a dielectric layer and a second conductive layer constituting a capacitive touch sensor; and a substrate, in which the first conductive layer, dielectric layer, second conductive layer, and substrate are positioned closer to the cover layer than is the viewing-side polarizing plate, the first conductive layer is formed on one surface of the substrate, the dielectric layer is formed on a surface of the first conductive layer opposite to the substrate side, the second conductive layer is formed on a surface of the dielectric layer opposite to the first conductive layer side, the substrate has an optical film with a phase difference of (2n?1)?/4, where n is a positive integer, the viewing-side polarizing plate has a polarizing film, and a slow axis of the optical film intersects a transmission axis of the polarizType: ApplicationFiled: November 28, 2017Publication date: April 19, 2018Applicant: ZEON CORPORATIONInventors: Tetsuya TOYOSHIMA, Shunsuke YAMANAKA
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Publication number: 20180081469Abstract: A display device with a capacitive touch panel includes a laminate between a display panel and a cover layer, the laminate having a circularly polarizing plate, a first conductive layer, and a second conductive layer. The circularly polarizing plate includes a substrate and a polarizing plate. The first conductive layer, the second conductive layer, and the substrate are positioned closer to the display panel than is the polarizing plate, and the first conductive layer is positioned closer to the cover layer than is the second conductive layer. The first and second conductive layers are arranged apart from each other in a stacking direction so as to form a capacitive touch sensor. One of the first and second conductive layers is formed on one surface of the substrate. The substrate has an optical film with a phase difference of ?/4. The polarizing plate has a polarizing film.Type: ApplicationFiled: November 27, 2017Publication date: March 22, 2018Applicant: ZEON CORPORATIONInventors: Tetsuya TOYOSHIMA, Shunsuke YAMANAKA
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Patent number: 9870107Abstract: A display device with a capacitive touch panel includes a laminate between a display panel and a cover layer, the laminate having a circularly polarizing plate, a first conductive layer, and a second conductive layer. The circularly polarizing plate includes a substrate and a polarizing plate. The first conductive layer, the second conductive layer, and the substrate are positioned closer to the display panel than is the polarizing plate, and the first conductive layer is positioned closer to the cover layer than is the second conductive layer. The first and second conductive layers are arranged apart from each other in a stacking direction so as to form a capacitive touch sensor. One of the first and second conductive layers is formed on one surface of the substrate. The substrate has an optical film with a phase difference of ?/4. The polarizing plate has a polarizing film.Type: GrantFiled: April 4, 2014Date of Patent: January 16, 2018Assignee: ZEON CORPORATIONInventors: Tetsuya Toyoshima, Shunsuke Yamanaka
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Patent number: 9857633Abstract: A display device including a laminate between a display panel and a cover layer, the laminate having a viewing-side polarizing plate; a first conductive layer, a dielectric layer and a second conductive layer constituting a capacitive touch sensor; and a substrate, the first conductive layer, dielectric layer, second conductive layer, and substrate are positioned closer to the cover layer than is the viewing-side polarizing plate, the first conductive layer is formed on one surface of the substrate, the dielectric layer is formed on a surface of the first conductive layer opposite to the substrate side, the second conductive layer is formed on a surface of the dielectric layer opposite to the first conductive layer side, the substrate has an optical film with a predetermined phase difference, the viewing-side polarizing plate has a polarizing film, a slow axis of optical film intersects a transmission axis of polarizing film at predetermined angle.Type: GrantFiled: April 9, 2014Date of Patent: January 2, 2018Assignee: ZEON CORPORATIONInventors: Tetsuya Toyoshima, Shunsuke Yamanaka
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Publication number: 20170254937Abstract: The present invention provides an optical film containing an additive. The optical film includes a high concentration portion containing the additive, and a low concentration portion containing the additive at a concentration lower than the high concentration portion. The low concentration portion is provided on both sides of the high concentration portion in a thickness direction of the optical film, and the low concentration portion is provided on both sides of the high concentration portion in a width direction of the optical film.Type: ApplicationFiled: September 10, 2015Publication date: September 7, 2017Applicant: ZEON CORPORATIONInventors: Hyota NAKAHORI, Shunsuke YAMANAKA
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Patent number: 9488866Abstract: An optical laminate having layer A having a resin having a negative intrinsic birefringence and at least one layer B having a transparent resin, having substantially no orientation and laminated at least on one face of layer A and satisfies a relation |Re(A)|>|Re(B)|, wherein Re(A) and Re(B) represent in-plane retardations of layer A and layer B, respectively, measured with light having a wavelength of 400 to 700 nm, an optical element having a laminate of the optical laminate and a polarizer plate, and a liquid crystal display device using at least one sheet of the optical laminate. In the liquid crystal display device, optical compensation can be made in accordance with the mode of the liquid crystal display by the three dimensional control of the refractive index, and the liquid crystal display device provides an image display with liquid crystals exhibiting small change in the phase contrast depending on the viewing angle.Type: GrantFiled: November 30, 2010Date of Patent: November 8, 2016Assignee: ZEON CORPORATIONInventors: Shunsuke Yamanaka, Kohei Arakawa