Patents by Inventor Junichi Nagase
Junichi Nagase 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: 8518552Abstract: The invention relates to an optical film containing polymers having different repeating units, and methods for production thereof. Further, the invention also relates to an optical laminate, a polarizing plate, and an image display device each using the optical film. The optical film of the invention advantageously has not only high solubility in solvents but also a high level of transparency since the polymers used in the optical film are compatible with each other. Further, wavelength dispersion of the birefringence of the optical film can be controlled by merely changing a ratio of polymers.Type: GrantFiled: March 11, 2010Date of Patent: August 27, 2013Assignee: Nitto Denko CorporationInventors: Toshiyuki Iida, Tomoyuki Hirayama, Yutaka Ohmori, Miyuki Kurogi, Hisae Shimizu, Junichi Nagase
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Publication number: 20130193844Abstract: In order to provide an organic electroluminescent light-emitting device with less uneven brightness, which can be manufactured at low cost, a plurality of ribbon-like organic electroluminescent elements are connected to wires, which are connected to electrode terminals for energization at specific locations in a terminal region and mounted on a base material which has a substantially plate-like shape.Type: ApplicationFiled: October 6, 2011Publication date: August 1, 2013Applicant: NITTO DENKO CORPORATIONInventors: Shigenori Morita, Ryohei Kakiuchi, Takahiro Nakai, Jin Yoshikawa, Masahiko Watanabe, Junichi Nagase
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Publication number: 20130181206Abstract: An organic EL device with a light diffusing element that includes a matrix containing a resin component and an ultrafine particle component, and a light diffusing fine particle dispersed in the matrix. Refractive indices of the resin component, the ultrafine particle component, and the light diffusing fine particle satisfy the following expression (1). Further, the light diffusing element includes a concentration adjusted area formed outside a vicinity of a surface of the light diffusing fine particle, in which a weight concentration of the resin component decreases and a weight concentration of the ultrafine particle component increases as a distance from the light diffusing fine particle increases. |nP?nA|<|nP?nB|??(1) In the expression (1), nA represents a refractive index of the resin component of the matrix, nB represents a refractive index of the ultrafine particle component of the matrix, and nP represents a refractive index of the light diffusing fine particle.Type: ApplicationFiled: September 13, 2011Publication date: July 18, 2013Applicant: NITTO DENKO CORPORATIONInventors: Junichi Nagase, Akinori Nishimura, Hiroyuki Takemoto
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Publication number: 20130109770Abstract: Organic-inorganic composite particles that can be dispersed in a solvent and/or a resin as primary particles having an organic group on the surface of inorganic particles, the organic-inorganic composite particles having negative birefringence.Type: ApplicationFiled: April 11, 2011Publication date: May 2, 2013Applicant: NITTO DENKO CORPORATIONInventors: Yoshiharu Hatakeyama, Takahiro Fukuoka, Junichi Nagase, Shusaku Shibata, Tatsuki Nagatsuka, Saori Fukuzaki
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Publication number: 20120286652Abstract: A method for manufacturing an organic EL device, including: while supplying a strip-shaped substrate, forming an organic EL film on the substrate by successively vapor depositing at least an organic layer including a light-emitting layer and an electrode layer on one side of the substrate; and successively winding up the substrate on which the organic EL film is formed by the vapor deposition, wherein the substrate is wound up along with a strip-shaped protective film that is softer than the substrate while supplying the protective film and adhering the protective film to a non-vapor deposition side of the substrate.Type: ApplicationFiled: May 11, 2012Publication date: November 15, 2012Applicant: NITTO DENKO CORPORATIONInventors: Takahiro Nakai, Shigenori Morita, Junichi Nagase, Nobukazu Neghishi, Naoko Ichieda, Kazuto Hosokawa
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Patent number: 8279378Abstract: The object of the present invention is to provide a producing method for a lengthwise optical laminate exhibiting high contrast ratio and adaptable to a large-sized display. The present invention provides a producing method for a lengthwise optical laminate, which comprises a step 1 of coating and drying a coating solution comprising a birefringent material and a solvent on a surface of a lengthwise base material to form a birefringent film such that a birefringence index (Anxz[590]) in the thickness direction at a wavelength of 590 nm is 0.Type: GrantFiled: January 16, 2008Date of Patent: October 2, 2012Assignee: Nitto Denko CorporationInventors: Kazunori Futamura, Junichi Nagase, Hiroyuki Yoshimi, Masaki Hayashi
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Patent number: 8228471Abstract: The liquid crystal panel 1 of the present invention comprises a liquid crystal cell 2, a first polarizer 31 disposed on one surface side of the liquid crystal cell 2, a second polarizer 41 disposed on the other surface side of the liquid crystal cell 2, and first optical compensation layer 5 and second optical compensation layer 6 disposed between the first polarizer 31 and second polarizer 41, and the liquid crystal cell 2 satisfies a relationship of 0.8 Re [450]/Re [550] 1, the first optical compensation layer 5 satisfies relationships of the Nz coefficient is from 0.8 to 1.4 and 0.8 Re[450]/Re[550] 1, and the second optical compensation layer 6 satisfies relationships of nx =ny>nz and 0.98 Re[450]/Re[550] 1.04. The liquid crystal panel of the present invention is hardly generated color shift when the panel is viewed from all azimuth angle directions and polar angle directions, so that the liquid crystal panel is excellent in color display characteristics.Type: GrantFiled: December 4, 2007Date of Patent: July 24, 2012Assignee: Nitto Denko CorporationInventors: Junichi Nagase, Kentarou Takeda
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Patent number: 8174646Abstract: A liquid crystal panel of the present invention comprise a liquid crystal cell, a first polarizer arranged on one of both sides of the liquid crystal cell, and a second polarizer arranged on the other side of the liquid crystal cell, wherein at least one of the first and the second polarizers is dyed with a dichroic material, and the dichroic ratio thereof is from 40 to 100. At least one of the polarizers preferably has a polarization degree of 99% or more and a single transmittance of 35% to 45%. Further, at least one of the polarizers preferably exhibits the following birefringence: ?nxy is from 0.015 to 0.030. The liquid crystal panel of the present invention has the above polarizers, therefore the liquid crystal panel attains high contrast ratio in oblique directions and excellent display characteristics.Type: GrantFiled: October 16, 2007Date of Patent: May 8, 2012Assignee: Nitto Denko CorporationInventors: Kazunori Futamura, Junichi Nagase, Hiroyuki Yoshimi, Masaki Hayashi
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Publication number: 20110255154Abstract: A polarizing plate according to an embodiment of the present invention includes a polarizer, a UV-shielding layer containing inorganic fine particles each having a band gap of 3.0 eV or more and a binder resin and a protective film. The UV-shielding layer contains the inorganic fine particles at a content of 40 to 80 vol %, and has a thickness of 400 nm or less.Type: ApplicationFiled: March 29, 2011Publication date: October 20, 2011Applicant: NITTO DENKO CORPORATIONInventors: Junichi NAGASE, Bin FANG, Seiji UMEMOTO, Tatsuki NAGATSUKA
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Publication number: 20110247523Abstract: The organic-inorganic composite particles can be dispersed as primary particles in a solvent and/or a resin and have a plurality of mutually different organic groups on the surface of inorganic particles.Type: ApplicationFiled: April 12, 2011Publication date: October 13, 2011Applicants: TOHOKU UNIVERSITY, NITTO DENKO CORPORATIONInventors: Yoshiharu HATAKEYAMA, Junichi Nagase, Shusaku Shibata, Saori Fukuzaki, Tatsuki Nagatsuka, Takahiro Fukuoka, Tadafumi Ajiri
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Publication number: 20110176092Abstract: [Object] The present invention provides a liquid crystal panel with which a display with extremely small change in color depending on a viewing direction can be realized, and a liquid crystal display including the same. [Solution to Problem] The liquid crystal panel includes: a first polarizer 30; a second polarizer 50; a first optical compensation layer 60; a second optical compensation layer 70; and a liquid crystal cell 40. The first polarizer 30 is arranged on one surface of the liquid crystal cell 40. The second polarizer 50 is arranged on the other surface of the liquid crystal cell 40. The first optical compensation layer 60 is arranged between the liquid crystal cell 40 and the first polarizer 30. The second optical compensation layer 70 is arranged between the liquid crystal cell 40 and the second polarizer 50. The first optical compensation layer 60 satisfies the following mathematical formulae (1) and (2).Type: ApplicationFiled: December 23, 2010Publication date: July 21, 2011Applicant: NITTO DENKO CORPORATIONInventors: Toshiyuki IIDA, Tomoyuki HIRAYAMA, Yutaka OHMORI, Miyuki KUROGI, Hisae SHIMIZU, Junichi NAGASE
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Patent number: 7969542Abstract: A liquid crystal panel includes a liquid crystal cell having a liquid crystal layer containing liquid crystal molecules that are vertically aligned in an absence of a voltage; a first optical compensation layer having a relationship of Nz =1 to 2.5 and a relationship of Re1(380) <Re1(550) <Re1(780); a second optical compensation layer having a relationship of nx =ny >nz and a relationship of Re2(380) >Re2(550) >Re2(780); a first polarizer; a third optical compensation layer having a relationship of Nz =1 to 2.Type: GrantFiled: November 15, 2007Date of Patent: June 28, 2011Assignee: Nitto Denko CorporationInventors: Kentarou Takeda, Junichi Nagase
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Patent number: 7944531Abstract: There are provided a liquid crystal panel and a liquid crystal display apparatus each having an excellent screen contrast, a small color shift, and small display unevenness. The liquid crystal panel includes a liquid crystal cell, a first polarizer, a second polarizer, a protective layer, a first optical compensation layer and a second optical compensation layer. The protective layer has relationships of 0 nm??nd (550)?10 nm and 0 nm?Rth(550)?20 nm. The first optical compensation layer has an absolute value of a photoelastic coefficient of 40×10?12 (m2/N) or less, and has relationships of ?nd(380)<?nd(550)<?nd(780), nx>ny?nz and 90 nm??nd(550)?200 nm. The second optical compensation layer has relationships of Rth(380)>Rth(550)>Rth(780) and nx=ny>nz.Type: GrantFiled: November 9, 2006Date of Patent: May 17, 2011Assignee: Nitto Denko CorporationInventors: Kentarou Takeda, Nao Murakami, Junichi Nagase, Toshiyuki Iida, Kanto Kobayashi
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Publication number: 20110109847Abstract: A polarizing plate according to an embodiment of the present invention includes a polarizer, a UV-shielding layer containing an inorganic fine particle with a bandgap of 3.0 eV or more and a binder resin, and a protective film.Type: ApplicationFiled: October 19, 2010Publication date: May 12, 2011Applicant: NITTO DENKO CORPORATIONInventors: Junichi NAGASE, Bin FANG, Seiji UMEMOTO
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Publication number: 20110025963Abstract: A laminated optical film according to an embodiment of the present invention includes a polarizing plate and a retardation layer formed of a water dispersible pressure-sensitive adhesive composition containing an inorganic laminar compound.Type: ApplicationFiled: July 23, 2010Publication date: February 3, 2011Applicant: NITTO DENKO CORPORATIONInventors: Junichi Nagase, Tomonari Naito, Mika Okada
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Publication number: 20100277679Abstract: There are provided a liquid crystal panel and a liquid crystal display apparatus each having an excellent screen contrast, a small color shift, and small display unevenness. The liquid crystal panel includes a liquid crystal cell, a first polarizer, a second polarizer, a protective layer, a first optical compensation layer and a second optical compensation layer. The protective layer has relationships of 0 nm??nd (550) 10 nm and 0 nm?Rth(550) 20 nm. The first optical compensation layer has an absolute value of a photoelastic coefficient of 40×10?12 (m2/N) or less, and has relationships of ?nd(380)<?nd(550)<?nd(780), nx>ny>nz and 90 nm??nd(550) ?200 nm. The second optical compensation layer has relationships of Rth(380)>Rth(550)>Rth(780) and nx=ny>nz.Type: ApplicationFiled: November 9, 2006Publication date: November 4, 2010Applicant: NITTO DENKO CORPORATIONInventors: Kentarou Takeda, Nao Murakami, Junichi Nagase, Toshiyuki Iida, Kanto Kobayashi
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Publication number: 20100265579Abstract: The invention relates to an optical film containing polymers having different repeating units, and methods for production thereof. Further, the invention also relates to an optical laminate, a polarizing plate, and an image display device each using the optical film. The optical film of the invention advantageously has not only high solubility in solvents but also a high level of transparency since the polymers used in the optical film are compatible with each other. Further, wavelength dispersion of the birefringence of the optical film can be controlled by merely changing a ratio of polymers.Type: ApplicationFiled: March 11, 2010Publication date: October 21, 2010Applicant: NITTO DENKO CORPORATIONInventors: Toshiyuki Iida, Tomoyuki Hirayama, Yutaka Ohmori, Miyuki Kurogi, Hisae Shimizu, Junichi Nagase
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Publication number: 20100165262Abstract: The optical laminated film of the present invention comprises a polarizer and a retardation film laminated on one surface of the polarizer, in which the polarizer has a drawn film of a hydrophilic polymer containing a dichroic material. An in-plane birefringence index (?nxy[1000]) of this polarizer at wavelength of 1000 nm is from 0.01 to 0.03, and the retardation film is a film such that an index ellipsoid satisfies the relation of nx>ny?nz. The retardation film is disposed so that the slow axis direction of the retardation film is substantially orthogonal to the absorption axis direction of the above polarizer. The optical laminated film of the present invention may increase contrast ratio in the case of being used for a liquid crystal display, for example.Type: ApplicationFiled: April 22, 2008Publication date: July 1, 2010Applicant: NITTO DENKO CORPORATIONInventors: Junichi Nagase, Kazunori Futamura, Hiroyuki Yoshimi, Masaki Hayashi
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Publication number: 20100073608Abstract: The object of the present invention is to provide a producing method for a lengthwise optical laminate exhibiting high contrast ratio and adaptable to a large-sized display. The present invention provides a producing method for a lengthwise optical laminate, which comprises a step 1 of coating and drying a coating solution comprising a birefringent material and a solvent on a surface of a lengthwise base material to form a birefringent film such that a birefringence index (?nxz[590]) in the thickness direction at a wavelength of 590 nm is 0.Type: ApplicationFiled: January 16, 2009Publication date: March 25, 2010Applicant: NITTO DENKO CORPORATIONInventors: Kazunori Futamura, Junichi Nagase, Hiroyuki Yoshimi, Masaki Hayashi
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Publication number: 20100066958Abstract: An object of the present invention is to provide a liquid crystal panel and a liquid crystal display apparatus which can contribute to the reduction in thickness, realize a high contrast while enhancing viewing angle characteristics, suppress a color shift, and satisfactorily prevent the light leakage in a black display. A liquid crystal panel of the present invention includes a liquid crystal cell having a liquid crystal layer containing liquid crystal molecules that are vertically aligned in an absence of a voltage; a first optical compensation layer having a relationship of Nz=1 to 2.5 and a relationship of Re1(380)<Re1(550)<Re1(780); a second optical compensation layer having a relationship of nx=ny>nz and a relationship of Re2(380)>Re2(550)>Re2(780); a first polarizer; a third optical compensation layer having a relationship of Nz=1 to 2.Type: ApplicationFiled: November 15, 2007Publication date: March 18, 2010Applicant: NITTO DENKO CORPORATIONInventors: Kentarou Takeda, Junichi Nagase