Patents by Inventor Nobukazu Nagae
Nobukazu Nagae 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: 9958752Abstract: An electrophoresis display device includes an element substrate (first substrate); a counter substrate (second substrate) arranged facing the element substrate; an electrophoresis layer arranged between the element substrate and the counter substrate and which includes a dispersion liquid which contains electrophoretic particles and a dispersion medium in which the electrophoretic particles are dispersed; a dividing wall arranged to partition the electrophoresis layer into a plurality of cells; and a sealing layer arranged between the counter substrate and the dividing wall. The sealing layer has a modulus of elasticity at 25° C. of 1 MPa or more to 100 MPa or less.Type: GrantFiled: July 12, 2016Date of Patent: May 1, 2018Assignee: Seiko Epson CorporationInventors: Tadashi Yamada, Kiyoshi Nakamura, Saichi Hirabayashi, Nobukazu Nagae, Toru Katakabe
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Publication number: 20170031228Abstract: An electrophoresis display device includes an element substrate (first substrate); a counter substrate (second substrate) arranged facing the element substrate; an electrophoresis layer arranged between the element substrate and the counter substrate and which includes a dispersion liquid which contains electrophoretic particles and a dispersion medium in which the electrophoretic particles are dispersed; a dividing wall arranged to partition the electrophoresis layer into a plurality of cells; and a sealing layer arranged between the counter substrate and the dividing wall. The sealing layer has a modulus of elasticity at 25° C. of 1 MPa or more to 100 MPa or less.Type: ApplicationFiled: July 12, 2016Publication date: February 2, 2017Inventors: Tadashi Yamada, Kiyoshi Nakamura, Saichi Hirabayashi, Nobukazu Nagae, Toru Katakabe
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Patent number: 8164725Abstract: A liquid crystal device includes: a circuit substrate; a counter substrate disposed so as to be opposed to the circuit substrate; a liquid crystal layer interposed between the circuit substrate and the counter substrate, the liquid crystal layer showing vertical alignment as an initial alignment state; a first alignment layer manufactured on a side of the counter substrate using a coating process, the side facing the liquid crystal layer, the first alignment layer having a vertical alignment function; and a second alignment layer manufactured on a side of the circuit substrate using a vacuum process, the side facing the liquid crystal layer, the second alignment layer generating a pretilt.Type: GrantFiled: February 6, 2009Date of Patent: April 24, 2012Assignee: Seiko Epson CorporationInventors: Nobukazu Nagae, Takeshi Miyashita
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Publication number: 20120092602Abstract: A manufacturing method of a liquid crystal display device including a liquid crystal layer sandwiched between a pair of opposed substrates and orientation films includes forming a first orientation film having straight-chain alkyl chains at the liquid crystal layer side of one substrate, and forming a second orientation film at the liquid crystal layer side of the other substrate by forming an inorganic orientation layer and surface-treating the inorganic orientation layer using a silane coupling agent, and forming the second orientation film includes surface-treating the inorganic orientation layer using a first silane coupling agent having straight-chain alkyl chains and surface-treating the layer using a second silane coupling agent having straight-chain alkyl chains and having only one hydrolytic group.Type: ApplicationFiled: September 12, 2011Publication date: April 19, 2012Applicant: SEIKO EPSON CORPORATIONInventors: Tomoko AKAGAWA, Nobukazu NAGAE
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Patent number: 8088495Abstract: The present invention provides a wiring material for forming wiring on a substrate by causing coalescence of conductive particles through heating, and including a binder layer and a wiring layer. The binder layer contains metal particles and having a binder function to be adhered to the substrate; and the wiring layer contains metal particles and laminated on the binder layer. The metal particles of the binder layer and the metal particles of the wiring layer are in contact with each other. With this arrangement, it is possible to provide a wiring material allowing use of a larger variety of materials, while also ensuring low resistance of wiring and improvement of adhesion between the wiring and the substrate.Type: GrantFiled: December 18, 2009Date of Patent: January 3, 2012Assignee: Sharp Kabushiki KaishaInventors: Akiyoshi Fujii, Toshio Tahira, Nobukazu Nagae
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Patent number: 7999891Abstract: The liquid crystal display device of the present invention includes a first substrate, a second substrate and a vertically aligned liquid crystal layer interposed between the first and second substrate. The device has a plurality of pixels each including a first electrode formed on the first substrate, a second electrode formed on the second substrate, and the liquid crystal layer interposed between the first and second electrode, and a shading region provided around the pixels. A plurality of supports for defining the thickness of the liquid crystal layer are placed regularly on the surface of the first or second substrate facing the liquid crystal layer in the shading region. The liquid crystal layer forms at least one liquid crystal domain exhibiting axisymmetric alignment when at least a predetermined voltage is applied, and the tilt direction of liquid crystal molecules in the at least one liquid crystal domain is defined with inclined sides of the plurality of supports.Type: GrantFiled: May 20, 2008Date of Patent: August 16, 2011Assignee: Sharp Kabushiki KaishaInventors: Yasuhiro Kume, Nobukazu Nagae, Kazuhiko Tamai, Noriaki Onishi
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Patent number: 7995170Abstract: In a liquid crystal display apparatus in which a liquid crystal domain having radially tilted orientation is formed in a pixel, high-quality reflection display with occurrence of an afterimage being suppressed is attained. The liquid crystal display apparatus of this invention includes a first substrate 110a, a second substrate 110b and a vertically aligned liquid crystal layer 120 placed therebetween, and has pixels each including a first electrode 111, a second electrode 131 and a liquid crystal layer located therebetween. The first substrate includes a reflection layer 116 having a concave/convex surface and an insulating layer 117 formed to cover the reflection layer. The first electrode 111 is placed on the insulating layer 117 and has a shape defined to exert alignment regulating force with which at least one liquid crystal domain having radially tilted orientation is formed in the liquid crystal layer in a voltage applied state.Type: GrantFiled: March 20, 2006Date of Patent: August 9, 2011Assignee: Sharp Kabushiki KaishaInventors: Noriaki Onishi, Kazuhiko Tamai, Takaaki Okamoto, Nobukazu Nagae
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Patent number: 7760306Abstract: A liquid crystal device includes: a first substrate; a second substrate that is disposed facing the first substrate; a liquid crystal layer that is sandwiched between the first substrate and the second substrate and is composed of a liquid crystal exhibiting, in an initial alignment state thereof, a vertical alignment and having negative dielectric anisotropy; a light shielding film that is formed on a side of the liquid crystal layer on the first substrate and that corresponds to a non-display region and defining a display region; a pixel electrode that is disposed, on the first substrate, from the display region with a periphery projecting on the light shielding film; a vertical alignment film that is disposed, on the pixel electrode, only in the display region or from the display region with a periphery projecting in the non-display region; and a horizontal alignment film that is disposed, in an area without the vertical alignment film above the light shielding film, with a periphery projecting on the pixeType: GrantFiled: February 18, 2008Date of Patent: July 20, 2010Assignee: Seiko Epson CorporationInventors: Ryuichi Kurosawa, Nobukazu Nagae, Takeshi Miyashita
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Patent number: 7728937Abstract: The liquid crystal display device includes a first substrate, a second substrate opposed to the first substrate, and a vertically aligned liquid crystal layer interposed between the first and second substrates, and has a plurality of pixels each including a first electrode formed on the first substrate, a second electrode formed on the second substrate, and the liquid crystal layer interposed between the first and second electrodes. The first substrate has a shading region in gaps between the plurality of pixels, and a wall structure is placed regularly on the surface of the first substrate facing the liquid crystal layer in the shading region. A color filter layer of the second substrate has at least one hole formed at a predetermined position in each pixel.Type: GrantFiled: June 16, 2005Date of Patent: June 1, 2010Assignee: Sharp Kabushiki KaishaInventors: Yasuhiro Kume, Noriaki Onishi, Kazuhiko Tamai, Hiroaki Kojima, Nobukazu Nagae
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Patent number: 7718273Abstract: The present invention provides a wiring material for forming wiring on a substrate by causing coalescence of conductive particles through heating, and including a binder layer and a wiring layer. The binder layer contains metal particles and having a binder function to be adhered to the substrate; and the wiring layer contains metal particles and laminated on the binder layer. The metal particles of the binder layer and the metal particles of the wiring layer are in contact with each other. With this arrangement, it is possible to provide a wiring material allowing use of a larger variety of materials, while also ensuring low resistance of wiring and improvement of adhesion between the wiring and the substrate.Type: GrantFiled: January 13, 2004Date of Patent: May 18, 2010Assignee: Sharp Kabushiki KaishaInventors: Akiyoshi Fujii, Toshio Tahira, Nobukazu Nagae
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Patent number: 7705943Abstract: The liquid crystal display device includes a first substrate 1110a, a second substrate 1110b placed to face the first substrate, and a liquid crystal layer 1120 interposed between the first substrate and the second substrate. The liquid crystal display device has a plurality of pixels each including a first electrode 1111 formed on the first substrate, a second electrode 1131 formed on the second substrate, and the liquid crystal layer interposed between the first electrode and the second electrode. The second electrode 1131 has at least one opening 1114 formed at a predetermined position in the pixel, the first substrate has a shading region in gaps between the plurality of pixels, and a wall structure 1115 is placed regularly on the surface of the first substrate facing the liquid crystal layer in the shading region.Type: GrantFiled: April 3, 2009Date of Patent: April 27, 2010Assignee: Sharp Kabushiki KaishaInventors: Yasuhiro Kume, Nobukazu Nagae, Kazuhiko Tamai, Noriaki Onishi, Takashi Kurihara
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Publication number: 20100098937Abstract: The present invention provides a wiring material for forming wiring on a substrate by causing coalescence of conductive particles through heating, and including a binder layer and a wiring layer. The binder layer contains metal particles and having a binder function to be adhered to the substrate; and the wiring layer contains metal particles and laminated on the binder layer. The metal particles of the binder layer and the metal particles of the wiring layer are in contact with each other. With this arrangement, it is possible to provide a wiring material allowing use of a larger variety of materials, while also ensuring low resistance of wiring and improvement of adhesion between the wiring and the substrate.Type: ApplicationFiled: December 18, 2009Publication date: April 22, 2010Inventors: Akiyoshi FUJII, Toshio TAHIRA, Nobukazu NAGAE
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Patent number: 7701538Abstract: The liquid crystal display device includes a first substrate 1110a, a second substrate 1110b placed to face the first substrate, and a liquid crystal layer 1120 interposed between the first substrate and the second substrate. The liquid crystal display device has a plurality of pixels each including a first electrode 1111 formed on the first substrate, a second electrode 1131 formed on the second substrate, and the liquid crystal layer interposed between the first electrode and the second electrode. The second electrode 1131 has at least one opening 1114 formed at a predetermined position in the pixel, the first substrate has a shading region in gaps between the plurality of pixels, and a wall structure 1115 is placed regularly on the surface of the first substrate facing the liquid crystal layer in the shading region.Type: GrantFiled: May 1, 2008Date of Patent: April 20, 2010Assignee: Sharp Kabushiki KaishaInventors: Yasuhiro Kume, Nobukazu Nagae, Kazuhiko Tamai, Noriaki Onishi
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Patent number: 7697099Abstract: A liquid crystal display device including a first substrate 110a, a second substrate 110b placed to face the first substrate, a liquid crystal layer 120 interposed between the first and second substrates, a first electrode 111 formed on the first substrate, a second electrode 131 formed on the second substrate, an interlayer insulating film 115a placed between the first electrode and the first substrate, and a wall structure 115b formed integrally with the interlayer insulating film. The liquid crystal display device has a plurality of pixels each including the first electrode, the second electrode and the liquid crystal layer interposed between the first and second electrodes. A shading region surrounds each of the plurality of pixels, and the wall structure is placed regularly in the shading region. A groove structure 415a may be formed in place of the wall structure.Type: GrantFiled: November 4, 2004Date of Patent: April 13, 2010Assignee: Sharp Kabushiki KaishaInventors: Yasuhiro Kume, Noriaki Onishi, Kazuhiko Tamai, Nobukazu Nagae, Hiroaki Kojima, Takashi Kurihara, Nobuaki Yamada
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Patent number: 7646459Abstract: The liquid crystal display device includes a first substrate, a second substrate opposed to the first substrate, and a vertically aligned liquid crystal layer interposed between the first and second substrates, and has a plurality of pixels arranged in a matrix having rows and columns. Each pixel includes a first electrode formed on the first substrate, a second electrode formed on the second substrate, and the liquid crystal layer interposed between the first and second electrodes. The first substrate has a shading region in gaps between the plurality of pixels, and a wall structure is placed regularly on the surface of the first substrate facing the liquid crystal layer in the shading region. The first and second electrodes have at least one opening formed at a predetermined position in the pixel.Type: GrantFiled: December 23, 2004Date of Patent: January 12, 2010Assignee: Sharp Kabushiki KaishaInventors: Yasuhiro Kume, Kazuhiko Tamai, Nobukazu Nagae, Noriaki Onishi
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Publication number: 20090239002Abstract: A liquid crystal display device includes a pair of substrates, and a liquid crystal layer that is vertically aligned in an initial state and sandwiched between the pair of the substrates. In the device, an alignment layer existing on an uppermost surface of at least one of the substrates is composed of alkyl chains having a different chain length each other, and an alkyl chain having a shortest chain length in the alkyl chains is tilted to the uppermost surface of the at least one of the substrates.Type: ApplicationFiled: February 10, 2009Publication date: September 24, 2009Applicant: SEIKO EPSON CORPORATIONInventor: Nobukazu NAGAE
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Publication number: 20090237604Abstract: A liquid crystal display device includes: a circuit substrate; a counter substrate oppositely disposed to the circuit substrate; a liquid crystal layer which is sandwiched between the circuit substrate and the counter substrate, and shows a vertical alignment in an initial alignment state; a first alignment layer having an alkyl chain formed by a coating process at a liquid crystal layer of the counter substrate; and a second alignment layer formed by a vacuum process at the liquid crystal layer of the circuit substrate. In the device, an alkyl chain is further bonded on a surface of the second alignment film.Type: ApplicationFiled: February 10, 2009Publication date: September 24, 2009Applicant: SEIKO EPSON CORPORATIONInventor: Nobukazu NAGAE
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Publication number: 20090237605Abstract: A liquid crystal device includes: a circuit substrate; a counter substrate disposed so as to be opposed to the circuit substrate; a liquid crystal layer interposed between the circuit substrate and the counter substrate, the liquid crystal layer showing vertical alignment as an initial alignment state; a first alignment layer manufactured on a side of the counter substrate using a coating process, the side facing the liquid crystal layer, the first alignment layer having a vertical alignment function; and a second alignment layer manufactured on a side of the circuit substrate using a vacuum process, the side facing the liquid crystal layer, the second alignment layer generating a pretilt.Type: ApplicationFiled: February 6, 2009Publication date: September 24, 2009Applicant: SEIKO EPSON CORPORATIONInventors: Nobukazu NAGAE, Takeshi MIYASHITA
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Publication number: 20090201454Abstract: The liquid crystal display device includes a first substrate 1110a, a second substrate 1110b placed to face the first substrate, and a liquid crystal layer 1120 interposed between the first substrate and the second substrate. The liquid crystal display device has a plurality of pixels each including a first electrode 1111 formed on the first substrate, a second electrode 1131 formed on the second substrate, and the liquid crystal layer interposed between the first electrode and the second electrode. The second electrode 1131 has at least one opening 1114 formed at a predetermined position in the pixel, the first substrate has a shading region in gaps between the plurality of pixels, and a wall structure 1115 is placed regularly on the surface of the first substrate facing the liquid crystal layer in the shading region.Type: ApplicationFiled: April 3, 2009Publication date: August 13, 2009Applicant: Sharp Kabushiki KaishaInventors: Yasuhiro Kume, Nobukazu Nagae, Kazuhiko Tamai, Noriaki Onishi, Takashi Kurihara
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Publication number: 20090073362Abstract: A liquid crystal device includes: a first substrate; a second substrate; and a liquid crystal layer interposed between the first and second substrates, the layer being made of liquid crystal aligned vertically in an initial alignment state and exhibiting negative dielectric anisotropy. The first substrate includes a plurality of pixel electrodes and a first alignment layer composed of a vertical alignment layer provided on the pixel electrodes and of a horizontal alignment layer provided in a region on the pixel electrodes and the first substrate, the region excluding the pixel electrodes. The second substrate includes an electrode, a protrusion provided so as to face the horizontal alignment layer, and a second alignment layer made of a vertical alignment layer provided on the electrode and the protrusion.Type: ApplicationFiled: September 17, 2008Publication date: March 19, 2009Applicant: SEIKO EPSON CORPORATIONInventor: Nobukazu NAGAE