Patents by Inventor Haruhiko Itoh
Haruhiko Itoh 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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Publication number: 20200381138Abstract: A transparent conductive laminate 100 includes a laminated substrate 50 and a transparent conductive layer 10 laminated on the laminated substrate 50. The laminated substrate 50 includes a transparent substrate 30 and a cured resin layer 20 laminated on the transparent substrate. The transparent conductive layer 10 includes a fibrous conductive material. The laminated substrate has a top peak of a transmission spectrum and a bottom peak of a reflection spectrum in a range of 385 nm to 485 nm, and the laminated substrate does not have a bottom peak of a transmission spectrum and a top peak of a reflection spectrum in a range of 385 nm to 485 nm. The refractive index of the cured resin layer is less than the refractive index of the transparent substrate.Type: ApplicationFiled: February 19, 2019Publication date: December 3, 2020Applicant: TEIJIN LIMITEDInventors: Haruhiko ITOH, Koichi IMAMURA
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Patent number: 10061461Abstract: Provided is a transparent electroconductive laminate which can prevent the occurrence of Newton rings between two transparent electrode substrates constituting a transparent touch panel. Also provided is a transparent touch panel which comprises the transparent electroconductive laminate. A transparent electroconductive laminate (14, 15, 16) comprises a transparent organic polymer substrate (16), and comprises an uneven-surfaced hardened resin layer (15) and a transparent electroconductive layer (14) which are successively laminated on at least one side of the transparent organic polymer substrate. The transparent electroconductive laminate is characterized in that the hardened resin layer comprises a hardening resin component and at least one of ultrafine metal oxide particles (A) and ultrafine metal fluoride particles (B), these particles having an average primary particle diameter of 100 nm or less and being dispersed in the hardening resin component.Type: GrantFiled: September 17, 2009Date of Patent: August 28, 2018Assignees: TEIJIN LIMITED, TEIJIN CHEMICALS LIMITEDInventors: Haruhiko Itoh, Koichi Imamura
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Patent number: 10042481Abstract: The present invention provides a transparent electroconductive laminate suitable for use in combination with a display device such as a liquid crystal display, and a transparent touch panel having the transparent electroconductive laminate. The transparent electroconductive laminate comprises a transparent organic polymer substrate 33 having, on at least one surface thereof, a hardcoat (HC) layer 33h, an optical interference layer 32, and a transparent electroconductive layer 31 in this order. The transparent electroconductive laminate satisfies the following conditions: the refractive indexes n3 and n3h of the transparent organic polymer substrate and the HC layer satisfy the following formula: |n3?n3h|?0.02, the thickness of the HC layer is from 1 to 10 ?m, the thickness of the optical interference layer is from 5 to 500 nm, the thickness of the transparent electroconductive layer is from 5 to 200 nm, the total light transmittance is 85% or more, and the b* value is from ?1.0 to less than 1.Type: GrantFiled: March 31, 2010Date of Patent: August 7, 2018Assignees: TEIJIN LIMITED, TEIJIN CHEMICALS LTD.Inventors: Haruhiko Itoh, Kouki Ikeda
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Patent number: 9652059Abstract: Disclosed is a transparent electroconductive laminate which achieves the required transparency or haze characteristic while having a desirable slipperiness in terms of handleability. Further disclosed is a transparent touch panel having said transparent electroconductive laminate. The transparent laminate (10) has a transparent organic polymer substrate (1), a transparent electroconductive layer (2) on one face of the transparent organic polymer substrate, and a cured resin layer (3) with a concavo-convex surface on the other face of the transparent organic polymer substrate, and the transparent touch panel has said transparent electroconductive laminate. The cured resin layer (3) has a concavo-convex surface by being formed from a coating composition which contains two types of polymerizable components which mutually phase-separate on the basis of the physical difference therebetween.Type: GrantFiled: October 7, 2009Date of Patent: May 16, 2017Assignees: TEIJIN LIMITED, TEIJIN CHEMICALS LTD.Inventors: Haruhiko Itoh, Koichi Imamura
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Publication number: 20120092290Abstract: The present invention provides a transparent electroconductive laminate having a combination of high transparency, small haze and sufficient lubricity; and a transparent touch panel comprising such a transparent electroconductive laminate. The transparent electroconductive laminate of the present invention comprises a transparent organic polymer substrate which has, on at least one surface thereof, a cured resin layer, and a transparent electroconductive layer in this order, and satisfies the following conditions (a) the cured resin layer contains a resin component and first ultrafine particles having an average primary particle diameter of 1 to 100 nm, (b) the resin component and the first ultrafine particles contain the same metal and/or metalloid element, and (c) in the cured resin layer, the content of the first ultrafine particles is from 0.01 to 3 parts by mass per 100 parts by mass of the resin component, and (d) the cured resin layer has a thickness of 0.01 to 2 ?m.Type: ApplicationFiled: March 30, 2010Publication date: April 19, 2012Applicants: TEIJIN CHEMICALS LTD., TEIJIN LIMITEDInventors: Haruhiko Itoh, Kouki Ikeda
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Publication number: 20120094071Abstract: The present invention provides a transparent electroconductive laminate suitable for use in combination with a display device such as a liquid crystal display, and a transparent touch panel having the transparent electroconductive laminate. The transparent electroconductive laminate comprises a transparent organic polymer substrate 33 having, on at least one surface thereof, a hardcoat (HC) layer 33h, an optical interference layer 32, and a transparent electroconductive layer 31 in this order. The transparent electroconductive laminate satisfies the following conditions: the refractive indexes n3 and n3h of the transparent organic polymer substrate and the HC layer satisfy the following formula: |na?n3h|0.02, the thickness of the HC layer is from 1 to 10 ?m, the thickness of the optical interference layer is from 5 to 500 nm, the thickness of the transparent electroconductive layer is from 5 to 200 nm, the total light transmittance is 85% or more, and the b* value is from ?1.0 to less than 1.Type: ApplicationFiled: March 31, 2010Publication date: April 19, 2012Applicants: TEIJIN CHEMICALS LTD., TEIJIN LIMITEDInventors: Haruhiko Itoh, Kouki Ikeda
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Publication number: 20120032900Abstract: Provided is a transparent electroconductive laminate which can prevent the occurrence of Newton rings between two transparent electrode substrates constituting a transparent touch panel. Also provided is a transparent touch panel which comprises the transparent electroconductive laminate. A transparent electroconductive laminate (14, 15, 16) comprises a transparent organic polymer substrate (16), and comprises an uneven-surfaced hardened resin layer (15) and a transparent electroconductive layer (14) which are successively laminated on at least one side of the transparent organic polymer substrate. The transparent electroconductive laminate is characterized in that the hardened resin layer comprises a hardening resin component and at least one of ultrafine metal oxide particles (A) and ultrafine metal fluoride particles (B), these particles having an average primary particle diameter of 100 nm or less and being dispersed in the hardening resin component.Type: ApplicationFiled: September 17, 2009Publication date: February 9, 2012Applicants: TEIJIN CHEMICALS LTD., TEIJIN LIMITEDInventors: Haruhiko Itoh, Koichi Imamura
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Publication number: 20120015144Abstract: Disclosed is a transparent electroconductive laminate which achieves the required transparency or haze characteristic while having a desirable slipperiness in terms of handleability. Further disclosed is a transparent touch panel having said transparent electroconductive laminate. The transparent laminate (10) has a transparent organic polymer substrate (1), a transparent electroconductive layer (2) on one face of the transparent organic polymer substrate, and a cured resin layer (3) with a concavo-convex surface on the other face of the transparent organic polymer substrate, and the transparent touch panel has said transparent electroconductive laminate. The cured resin layer (3) has a concavo-convex surface by being formed from a coating composition which contains two types of polymerizable components which mutually phase-separate on the basis of the physical difference therebetween.Type: ApplicationFiled: October 7, 2009Publication date: January 19, 2012Applicants: TEIJIN CHEMICALS LTD., TEIJIN LIMITEDInventors: Haruhiko Itoh, Koichi Imamura
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Patent number: 7972684Abstract: A transparent conductive laminated body (1) contains a polymer film having a metallic compound layer and a transparent conductive layer laminated sequentially on at least one surface thereof, (2) the metallic compound layer is in contact with the transparent conductive layer, and (3) the metallic compound layer has a thickness of 0.5 nm or more and less than 10.0 nm.Type: GrantFiled: August 18, 2005Date of Patent: July 5, 2011Assignee: Teijin LimitedInventors: Hiroshi Hara, Haruhiko Itoh, Isao Shiroishi, Hitoshi Mikoshiba
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Patent number: 7336020Abstract: A pair of opposing thin plate sections, movable sections, and fixed sections for supporting the thin plate sections and the movable sections are provided on a ceramic substrate. After a wiring pattern and a gap or an insulating layer of cermet layer for filling the gap are formed on a ceramic substrate, these are sintered. After that, piezoelectric/electrostrictive layers and cermet electrode layers including a piezoelectric/electrostrictive material and a conductive material are alternately stacked in a comb like structure on the ceramic substrate. Accordingly, a piezoelectric/electrostrictive device having the piezoelectric/electrostrictive element in multilayer structure is obtained.Type: GrantFiled: October 7, 2005Date of Patent: February 26, 2008Assignee: NGK Insulators, Ltd.Inventors: Koji Ikeda, Fumitake Takahashi, Kazuyoshi Shibata, Haruhiko Itoh
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Patent number: 7294395Abstract: A transparent electroconductive laminate comprising an organic polymer film having stacked on at least one surface thereof an optical interference layer and a transparent electroconductive layer in this order, the optical interference layer comprising a high refractive-index layer and a low refractive-index layer, with the low refractive-index layer being in contact with the transparent electroconductive layer, and the optical interference layer being composed of a crosslinked polymer, wherein the optical interference layer contains ultrafine particles A comprising a metal oxide and/or a metal fluoride and having a primary diameter of 100 nm or less, and/or at least one of the high refractive-index layer and the low refractive-index layer contains fine particles B having an average primary diameter as large as 1.1 times or more the thickness of the optical interference layer and an average primary diameter of 1.2 ?m or less in an amount of 0.5 wt % or less of the crosslinked polymer component.Type: GrantFiled: September 3, 2002Date of Patent: November 13, 2007Assignee: Teijin LimitedInventors: Haruhiko Itoh, Hitoshi Mikoshiba, Yuji Tamura
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Publication number: 20070224412Abstract: A transparent conductive laminated body (1) contains a polymer film having a metallic compound layer and a transparent conductive layer laminated sequentially on at least one surface thereof, (2) the metallic compound layer is in contact with the transparent conductive layer, and (3) the metallic compound layer has a thickness of 0.5 nm or more and less than 10.0 nm.Type: ApplicationFiled: August 18, 2005Publication date: September 27, 2007Applicant: Teijin LimitedInventors: Hiroshi Hara, Haruhiko Itoh, Isao Shiroishi, Hitoshi Mikoshiba
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Publication number: 20060038464Abstract: A pair of opposing thin plate sections, movable sections, and fixed sections for supporting the thin plate sections and the movable sections are provided on a ceramic substrate. After a wiring pattern and a gap or an insulating layer of cermet layer for filling the gap are formed on a ceramic substrate, these are sintered. After that, piezoelectric/electrostrictive layers and cermet electrode layers including a piezoelectric/electrostrictive material and a conductive material are alternately stacked in a comb like structure on the ceramic substrate. Accordingly, a piezoelectric/electrostrictive device having the piezoelectric/electrostrictive element in multilayer structure is obtained.Type: ApplicationFiled: October 7, 2005Publication date: February 23, 2006Applicant: NGK Insulators, Ltd.Inventors: Koji Ikeda, Fumitake Takahashi, Kazuyoshi Shibata, Haruhiko Itoh
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Patent number: 6992421Abstract: A pair of opposing thin plate sections, movable sections, and fixed sections for supporting the thin plate sections and the movable sections are provided on a ceramic substrate. After a wiring pattern and a gap or an insulating layer of cermet layer for filling the gap are formed on a ceramic substrate, these are sintered. After that, piezoelectric/electrostrictive layers and cermet electrode layers including a piezoelectric/electrostrictive material and a conductive material are alternately stacked in a comb like structure on the ceramic substrate. Accordingly, a piezoelectric/electrostrictive device having the piezoelectric/electrostrictive element in multilayer structure is obtained.Type: GrantFiled: June 14, 2004Date of Patent: January 31, 2006Assignee: NGK Insulators, Ltd.Inventors: Koji Ikeda, Fumitake Takahashi, Kazuyoshi Shibata, Haruhiko Itoh
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Publication number: 20050035688Abstract: A piezoelectric/electrostrictive device includes a ceramic substrate and a piezoelectric/electrostrictive element formed on the ceramic substrate. The ceramic substrate includes fixed sections which have a large thickness, a pair of thin plate sections which are formed continuously from the fixed sections and which are thinner than the fixed sections, and movable sections which are provided at ends of the pair of thin plate sections. An additional member is used at least between the pair of thin plate sections and the movable sections. The additional member is a porous member or at least one columnar member.Type: ApplicationFiled: July 26, 2004Publication date: February 17, 2005Applicant: NGK Insulators, Ltd.Inventors: Masahiko Namerikawa, Koji Ikeda, Fumitake Takahashi, Kazuyoshi Shibata, Haruhiko Itoh
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Publication number: 20040251787Abstract: A pair of opposing thin plate sections, movable sections, and fixed sections for supporting the thin plate sections and the movable sections are provided on a ceramic substrate. After a wiring pattern and a gap or an insulating layer of cermet layer for filling the gap are formed on a ceramic substrate, these are sintered. After that, piezoelectric/electrostrictive layers and cermet electrode layers including a piezoelectric/electrostrictive material and a conductive material are alternately stacked in a comb like structure on the ceramic substrate. Accordingly, a piezoelectric/electrostrictive device having the piezoelectric/electrostrictive element in multilayer structure is obtained.Type: ApplicationFiled: June 14, 2004Publication date: December 16, 2004Applicant: NGK Insulators, Ltd.Inventors: Koji Ikeda, Fumitake Takahashi, Kazuyoshi Shibata, Haruhiko Itoh
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Patent number: 6809459Abstract: A pair of opposing thin plate sections, movable sections, and fixed sections for supporting the thin plate sections and the movable sections are provided on a ceramic substrate. After a wiring pattern and a gap or an insulating layer of cermet layer for filling the gap are formed on a ceramic substrate, these are sintered. After that, piezoelectric/electrostrictive layers and cermet electrode layers including a piezoelectric/electrostrictive material and a conductive material are alternately stacked in a comb like structure on the ceramic substrate. Accordingly, a piezoelectric/electrostrictive device having the piezoelectric/electrostrictive element in multilayer structure is obtained.Type: GrantFiled: January 13, 2003Date of Patent: October 26, 2004Assignee: NGK Insulators, Ltd.Inventors: Koji Ikeda, Fumitake Takahashi, Kazuyoshi Shibata, Haruhiko Itoh
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Publication number: 20040151895Abstract: A transparent electroconductive laminate comprising an organic polymer film having stacked on at least one surface thereof an optical interference layer and a transparent electroconductive layer in this order, the optical interference layer comprising a high refractive-index layer and a low refractive-index layer, with the low refractive-index layer being in contact with the transparent electroconductive layer, and the optical interference layer being composed of a crosslinked polymer, wherein the optical interference layer contains ultrafine particles A comprising a metal oxide and/or a metal fluoride and having a primary diameter of 100 nm or less, and/or at least one of the high refractive-index layer and the low refractive-index layer contains fine particles B having an average primary diameter as large as 1.1 times or more the thickness of the optical interference layer and an average primary diameter of 1.2 &mgr;m or less in an amount of 0.5 wt % or less of the crosslinked polymer component.Type: ApplicationFiled: October 10, 2003Publication date: August 5, 2004Inventors: Haruhiko Itoh, Hitoshi Mikoshiba, Yuji Tamura
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Patent number: 6716564Abstract: A radiation sensitive resin composition containing an alkali-soluble resin, for example a novolak-quinonediazide positive-working radiation sensitive resin composition and a chemically amplified negative-working resin composition, wherein the alkali-soluble resin contains at least an alkali-soluble resin obtained by polycondensation of a compound represented by the following general formula (I) and a phenol if necessary, with an aldehyde. wherein R represents a hydroxyl group or an alkyl group with 1 to 4 carbon atoms, n is 0 or an integer of 1 to 3 and, when n is 2 or 3, each R group may be the same or different.Type: GrantFiled: December 6, 2001Date of Patent: April 6, 2004Assignee: Clariant Finance (BVI) LimitedInventors: Satoshi Kobayashi, Hidekazu Shioda, Haruhiko Itoh
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Publication number: 20030164660Abstract: A pair of opposing thin plate sections, movable sections, and fixed sections for supporting the thin plate sections and the movable sections are provided on a ceramic substrate. After a wiring pattern and a gap or an insulating layer of cermet layer for filling the gap are formed on a ceramic substrate, these are sintered. After that, piezoelectric/electrostrictive layers and cermet electrode layers including a piezoelectric/electrostrictive material and a conductive material are alternately stacked in a comb like structure on the ceramic substrate. Accordingly, a piezoelectric/electrostrictive device having the piezoelectric/electrostrictive element in multilayer structure is obtained.Type: ApplicationFiled: January 13, 2003Publication date: September 4, 2003Applicant: NGK Insulators, Ltd.Inventors: Koji Ikeda, Fumitake Takahashi, Kazuyoshi Shibata, Haruhiko Itoh