Patents by Inventor Noriko Suehiro
Noriko Suehiro 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: 7382430Abstract: On substrates 2a, 2b of a chiral nematic liquid crystal optical element 1, transparent electrodes 3a, 3b and electrical insulation layers 4a, 4b are formed, and further resin layers 5a, 5b having a pencil hardness of “B” or less are formed on the electrical insulation layers by a spin coating method so as to be in contact with a liquid crystal layer 7. When the surface hardness of the resin layers is to be measured, a glass substrate on which a resin layer is formed by screen-printing is prepared as a test piece, and the test piece is fitted to a pencil-scratching tester. The surface hardness is measured by scratching the test piece with two kinds of testing pencil selected from testing pencils having 17 grades of density.Type: GrantFiled: March 2, 2007Date of Patent: June 3, 2008Assignee: Asahi Glass Company, LimitedInventors: Satoshi Niiyama, Noriko Suehiro
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Patent number: 7253861Abstract: On substrates 2a, 2b of a chiral nematic liquid crystal optical element 1, transparent electrodes 3a, 3b and electrical insulation layers 4a, 4b are formed, and further, resin layers 5a, 5b hating a pencil hardness of “B” or less are formed on the electrical insulation layers by a spin coating method so as to be in contact with a liquid crystal layer 7. When the surface hardness of the resin layers is to be measured, a glass substrate on which a resin layer is formed by screen-printing is prepared as a test piece, and the test piece is fitted to a pencil-scratching tester. The surface hardness is measured by scratching the test piece with two kinds of testing pencil selected from testing pencils having 17 grades of density.Type: GrantFiled: December 28, 2001Date of Patent: August 7, 2007Assignee: Asahi Glass CompanyInventors: Satoshi Niiyama, Noriko Suehiro
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Publication number: 20070146562Abstract: On substrates 2a, 2b of a chiral nematic liquid crystal optical element 1, transparent electrodes 3a, 3b and electrical insulation layers 4a, 4b are formed, and further resin layers 5a, 5b having a pencil hardness of “B” or less are formed on the electrical insulation layers by a spin coating method so as to be in contact with a liquid crystal layer 7. When the surface hardness of the resin layers is to be measured, a glass substrate on which a resin layer is formed by screen-printing is prepared as a test piece, and the test piece is fitted to a pencil-scratching tester. The surface hardness is measured by scratching the test piece with two kinds of testing pencil selected from testing pencils having 17 grades of density.Type: ApplicationFiled: March 2, 2007Publication date: June 28, 2007Applicant: OPTREX CorporationInventors: Satoshi NIIYAMA, Noriko Suehiro
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Patent number: 6950086Abstract: A driving method for a liquid crystal display device with a cholesteric liquid crystal having a memory mode of operation including a first stage of applying a first voltage to change the state of the cholesteric liquid crystal to a homeotropic state, a second stage of applying a second voltage to change the state of the cholesteric liquid crystal to a homogeneous state or a homogeneous/planar-mixed state, and a third stage of applying a third voltage to change the state of the cholesteric liquid crystal from the homogeneous state or the homogeneous/planar-mixed state to a focalconic state.Type: GrantFiled: April 2, 2001Date of Patent: September 27, 2005Assignee: OPTREX CorporationInventors: Makoto Nagai, Shinya Tahara, Tomohiro Takano, Noriko Suehiro, Satoshi Niiyama
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Patent number: 6914648Abstract: There are provided at least two liquid crystal panels 10, 20 including the liquid crystals developing a memory effect, the liquid crystal developing a memory effect on a side opposite to a viewer side has a selective reflection wavelength set at 615-665 nm, the liquid crystal developing a memory effect on the viewer side has a selective reflection wavelength set at 490-540 nm, and a color filter having a certain transmission property is provided between the liquid crystal developing a memory effect on the viewer side and the liquid crystal developing a memory effect on the side opposite to the viewer side.Type: GrantFiled: September 18, 2002Date of Patent: July 5, 2005Assignee: OPTREX CorporationInventors: Satoshi Niiyama, Noriko Suehiro
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Patent number: 6806924Abstract: There are provided at least two liquid crystal panels 10, 20 including the liquid crystals developing a memory effect, the liquid crystal developing a memory effect on a no-viewer side has a selective reflection wavelength set at 615 nm to 665 nm, the liquid crystal developing a memory effect on a viewer side has a selective reflection wavelength set at 490 nm to 540 nm, and a color filter 40 having a certain transmission property is provided between the liquid crystal developing a memory effect on the viewer side and the liquid crystal developing a memory effect on the no-viewer side.Type: GrantFiled: September 18, 2002Date of Patent: October 19, 2004Assignee: OPTREX CorporationInventors: Satoshi Niiyama, Noriko Suehiro
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Patent number: 6674494Abstract: On substrates 2a, 2b of a chiral nematic liquid crystal optical element 1, transparent electrodes 3a, 3b and electrical insulation layers 4a, 4b are formed, and further, resin layers 5a, 5b having a pencil hardness of “B” or less are formed on the electrical insulation layers by a spin coating method so as to be in contact with a liquid crystal layer 7. When the surface hardness of the resin layers is to be measured, a glass substrate on which a resin layer is formed by screen-printing is prepared as a test piece, and the test piece is fitted to a pencil-scratching tester. The surface hardness is measured by scratching the test piece with two kinds of testing pencil selected from testing pencils having 17 grades of density.Type: GrantFiled: May 3, 2001Date of Patent: January 6, 2004Assignee: OPTREX CorporationInventors: Satoshi Niiyama, Noriko Suehiro
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Publication number: 20030193641Abstract: On substrates 2a, 2b of a chiral nematic liquid crystal optical element 1, transparent electrodes 3a, 3b and electrical insulation layers 4a, 4b are formed, and further, resin layers 5a, 5b having a pencil hardness of “B” or less are formed on the electrical insulation layers by a spin coating method so as to be in contact with a liquid crystal layer 7 When the surface hardness of the resin layers is to be measured, a glass substrate on which a resin layer is formed by screen-printing is prepared as a test piece, and the test piece is fitted to a pencil-scratching tester. The surface hardness is measured by scratching the test piece with two kinds of testing pencil selected from testing pencils having 17 grades of density.Type: ApplicationFiled: May 30, 2003Publication date: October 16, 2003Applicant: OPTREX CorporationInventors: Satoshi Niiyama, Noriko Suehiro
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Publication number: 20030142057Abstract: An information display comprises a planar electrical optical element including a plurality of pixels, each of the pixels having an optical state controlled by an electrical signal; the optical element having at least two optical states of a light scattering state and a light transmissive state, each of the pixels having the optical state reversibly changed between the scattering state and the light transmissive state; information being displayed in a planar fashion by combining the optical states of pixels; and the information being capable to be held with no electrical signal applied, and visible light having a transmittance of 60% or higher when the visible light passes from one of surfaces of the electrical optical element to the other surface through a pixel in the light transmissive state.Type: ApplicationFiled: December 4, 2002Publication date: July 31, 2003Applicant: OPTREX CorporationInventors: Satoshi Niiyama, Noriko Suehiro, Shinya Tahara, Hitoshi Tsushima
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Publication number: 20030071936Abstract: There are provided at least two liquid crystal panels 10, 20 including the liquid crystals developing a memory effect, the liquid crystal developing a memory effect on a no-viewer side has a selective reflection wavelength set at 615 nm to 665 nm, the liquid crystal developing a memory effect on a viewer side has a selective reflection wavelength set at 490 nm to 540 nm, and a color filter 40 having a certain transmission property is provided between the liquid crystal developing a memory effect on the viewer side and the liquid crystal developing a memory effect on the no-viewer side.Type: ApplicationFiled: September 18, 2002Publication date: April 17, 2003Applicant: OPTREX CorporationInventors: Satoshi Niiyama, Noriko Suehiro
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Publication number: 20030053014Abstract: There are provided at least two liquid crystal panels 10, 20 including the liquid crystals developing a memory effect, the liquid crystal developing a memory effect on a side opposite to a viewer side has a selective reflection wavelength set at 615-665 nm, the liquid crystal developing a memory effect on the viewer side has a selective reflection wavelength set at 490-540 nm, and a color filter having a certain transmission property is provided between the liquid crystal developing a memory effect on the viewer side and the liquid crystal developing a memory effect on the side opposite to the viewer side.Type: ApplicationFiled: September 18, 2002Publication date: March 20, 2003Applicant: OPTREX CorporationInventors: Satoshi Niiyama, Noriko Suehiro
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Publication number: 20020126229Abstract: On substrates 2a, 2b of a chiral nematic liquid crystal optical element 1, transparent electrodes 3a, 3b and electrical insulation layers 4a, 4b are formed, and further, resin layers 5a, 5b hating a pencil hardness of “B” or less are formed on the electrical insulation layers by a spin coating method so as to be in contact with a liquid crystal layer 7. When the surface hardness of the resin layers is to be measured, a glass substrate on which a resin layer is formed by screen-printing is prepared as a test piece, and the test piece is fitted to a pencil-scratching tester. The surface hardness is measured by scratching the test piece with two kinds of testing pencil selected from testing pencils having 17 grades of density.Type: ApplicationFiled: December 28, 2001Publication date: September 12, 2002Applicant: OPTREX CorporationInventors: Satoshi Niiyama, Noriko Suehiro
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Publication number: 20020122148Abstract: On substrates 2a, 2b of a chiral nematic liquid crystal optical element 1, transparent electrodes 3a, 3b and electrical insulation layers 4a, 4b are formed, and further, resin layers 5a, 5b having a pencil hardness of “B” or less are formed on the electrical insulation layers by a spin coating method so as to be in contact with a liquid crystal layer 7. When the surface hardness of the resin layers is to be measured, a glass substrate on which a resin layer is formed by screen-printing is prepared as a test piece, and the test piece is fitted to a pencil-scratching tester. The surface hardness is measured by scratching the test piece with two kinds of testing pencil selected from testing pencils having 17 grades of density.Type: ApplicationFiled: May 3, 2001Publication date: September 5, 2002Applicant: OPTREX CorporationInventors: Satoshi Niiyama, Noriko Suehiro
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Publication number: 20020047819Abstract: In a liquid crystal display element provided with a liquid crystal layer having a memory function, 4.0≦a≦d·V/10 is satisfied where a represents a space (an interline width) between transparent electrodes 31, 31 adjacent to each other on the same surface of a substrate 3, d (&mgr;m) represents the thickness of the liquid crystal layer interposed between the transparent electrodes 21, 31 (a pixel portion D) opposing between upper and lower substrates 2, 3, VMAX represents the maximum effective voltage required to change a display, and a (&mgr;m) represents the maximum space of the transparent electrodes whereby a uniform alignment state in a pixel portion and an interline portion can be obtained.Type: ApplicationFiled: March 22, 2001Publication date: April 25, 2002Applicant: OPTREX CORPORATIONInventors: Noriko Suehiro, Satoshi Niiyama, Masao Ozeki, Kazuhiro Monzen
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Publication number: 20020036614Abstract: A driving method for a liquid crystal display device with a cholesteric liquid crystal having a memory mode of operation comprises a first stage of applying a first voltage to change the state of the cholesteric liquid crystal to a homeotropic state; a second stage of applying a second voltage to change the state of the cholesteric liquid crystal to a homogeneous state or a homogeneous/planar-mixed state, and a third stage of applying a third voltage to change the state of the cholesteric liquid crystal from the homogeneous state or the homogeneous/planar-mixed state to a focalconic state.Type: ApplicationFiled: April 2, 2001Publication date: March 28, 2002Applicant: OPTREX CorporationInventors: Makoto Nagai, Shinya Tahara, Tomohiro Takano, Noriko Suehiro, Satoshi Niiyama