Patents by Inventor Hiroshi Sugata
Hiroshi Sugata 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: 11693157Abstract: Provided is a fine concave-convex laminate that is reduced in thickness, has excellent antireflection performance, and can suppress scattering and absorption of short-wavelength light. A fine concave-convex laminate comprises a substrate, a first transparent organic layer, and a second transparent organic layer laminated in the stated order, wherein the first transparent organic layer has a fine concave-convex structure at a surface facing the second transparent organic layer, the second transparent organic layer has fine concave-convex structures at both surfaces, and a thickness of a composite layer composed of the first transparent organic layer and the second transparent organic layer is 15 ?m or less.Type: GrantFiled: June 29, 2018Date of Patent: July 4, 2023Assignee: Dexerials CorporationInventors: Shunichi Kajiya, Kazuya Hayashibe, Naoki Hanashima, Hiroshi Sugata
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Patent number: 11614568Abstract: Provided is a laminate and an anti-reflection structure that can be thinned, are excellent in anti-reflection performance and can keep reflection chromaticity neutral. In the laminate according to the present disclosure, a part of a light shielding film has a non-light shielding portion without a light shielding film; an anti-reflection structure is formed in the non-light shielding portion through an adhesion layer, and a fine uneven structure has an uneven period that is equal to or less than a wavelength of visible light; and a color difference (?E) between a reflected light by the light shielding film and a reflected light by the anti-reflection structure expressed in the formula shown below is equal to or less than 1.5.Type: GrantFiled: October 26, 2018Date of Patent: March 28, 2023Assignee: Dexerials CorporationInventors: Hiroshi Sugata, Shunichi Kajiya
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Publication number: 20220291422Abstract: Provided is an anti-reflection structure with excellent anti-reflection performance and transparency, and with reduced generation of wrinkles on the surface. The present disclosure is an anti-reflection structure 10 including at least an adhesion layer 20 and an anti-reflection layer 30 formed on the adhesion layer 20 and having fine uneven structures on both sides thereof. The storage elastic modulus E? of the adhesion layer 20 is equal to or greater than 25 MPa, and fine uneven structures formed on both sides of the anti-reflection layer 30 each have an uneven period P equal to or less than the wavelength of visible light.Type: ApplicationFiled: September 23, 2020Publication date: September 15, 2022Applicant: Dexerials CorporationInventors: Hiroshi SUGATA, Hiroshi TAZAWA, Shunichi KAJIYA
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Patent number: 11287693Abstract: There is provided a novel and improved optical body, method for manufacturing an optical body, light-emitting apparatus, and display apparatus for amusement equipment capable of improving emitted luminance and transparency, the optical body including: a base material; and a light extraction section, formed on at least one surface of the base material, that extracts internally propagated light incident inside the base material from a side face of the base material to an outside of the base material. The light extraction section includes a concave-convex structure in which at least one of concavities and convexities has a frustum shape, a fill ratio of the concave-convex structure is 15% or greater, and a light transmittance is 50% or greater.Type: GrantFiled: October 5, 2018Date of Patent: March 29, 2022Assignee: DEXERIALS CORPORATIONInventors: Koji Sasaki, Hiroshi Sugata, Naoki Hanashima
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Patent number: 11243429Abstract: There is provided a novel and improved optical body, method for manufacturing an optical body, light-emitting apparatus, and image display apparatus capable of improving emitted luminance and transparency, the optical body including: a base material; and a light extraction section, formed on at least one surface of the base material, that extracts internally propagated light incident inside the base material from a side face of the base material to an outside of the base material. The light extraction section includes a concave-convex structure in which at least one of concavities and convexities has a frustum shape, a fill ratio of the concave-convex structure is 15% or greater, and a light transmittance is 50% or greater.Type: GrantFiled: October 5, 2018Date of Patent: February 8, 2022Assignee: DEXERIALS CORPORATIONInventors: Koji Sasaki, Hiroshi Sugata, Naoki Hanashima
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Publication number: 20210382205Abstract: A laminate includes a thin film structural body and retention films. A first retention film is stacked on one face of the thin film structural body and a second retention film is stacked on another face of the thin film structural body. The thin film structural body has a first fine irregularity structure at a face that is in contact with the first retention film and has a second fine irregularity structure at a face that is in contact with the second retention film. The first retention film has a third fine irregularity structure at a face that is in contact with the thin film structural body. The second retention film has a fourth fine irregularity structure at a face that is in contact with the thin film structural body. The laminate includes a half cut section. The second retention film contains a UV-curable resin.Type: ApplicationFiled: October 30, 2019Publication date: December 9, 2021Applicant: Dexerials CorporationInventors: Hiroshi SUGATA, Hiroshi TAZAWA, Shunichi KAJIYA
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Patent number: 11091623Abstract: A cyclic olefin resin composition film having high toughness with less difference in toughness between length and width directions. The cyclic olefin resin composition film contains a cyclic olefin resin, a styrene elastomer and inorganic oxide fine particles having an average particle diameter of 40 nm or smaller, and has a linear expansion coefficient of 40 ppm/° C. to 60 ppm/° C. This film attains high toughness with less difference in toughness between length and width directions.Type: GrantFiled: November 18, 2015Date of Patent: August 17, 2021Assignee: DEXERIALS CORPORATIONInventors: Ken Hosoya, Akihiro Horii, Kei Obata, Taku Ishimori, Kazuki Hirata, Hiroshi Sugata
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Publication number: 20210239882Abstract: To form an optical body having a micro concave-convex structure on at least part of an adherend with high accuracy. Provided is an optical laminate including an adherend, a bonding layer formed on at least part of a surface of the adherend, and an optical body bonded to the adherend with the bonding layer. A micro concave-convex structure in which concavities and convexities are arranged at an average cycle less than or equal to a visible light wavelength is formed in at least one surface of the optical body. The bonding layer is provided on the other surface of the optical body. An initial 90° peeling force when peeling the optical body from a transfer body having an inverted concave-convex structure fitted in the micro concave-convex structure of the optical body is less than or equal to 70% of a 90° peeling force between the optical body and the bonding layer.Type: ApplicationFiled: May 24, 2019Publication date: August 5, 2021Applicant: DEXERIALS CORPORATIONInventors: Hiroshi SUGATA, Shunichi KAJIYA
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Publication number: 20210132257Abstract: Provided is a laminate and an anti-reflection structure that can be thinned, are excellent in anti-reflection performance and can keep reflection chromaticity neutral. In the laminate according to the present disclosure, a part of a light shielding film has a non-light shielding portion without a light shielding film; an anti-reflection structure is formed in the non-light shielding portion through an adhesion layer, and a fine uneven structure has an uneven period that is equal to or less than a wavelength of visible light; and a color difference (?E) between a reflected light by the light shielding film and a reflected light by the anti-reflection structure expressed in the formula shown below is equal to or less than 1.5.Type: ApplicationFiled: October 26, 2018Publication date: May 6, 2021Applicant: Dexerials CorporationInventors: Hiroshi SUGATA, Shunichi KAJIYA
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Publication number: 20200310020Abstract: There is provided a novel and improved optical body, method for manufacturing an optical body, light-emitting apparatus, and display apparatus for amusement equipment capable of improving emitted luminance and transparency, the optical body including: a base material; and a light extraction section, formed on at least one surface of the base material, that extracts internally propagated light incident inside the base material from a side face of the base material to an outside of the base material. The light extraction section includes a concave-convex structure in which at least one of concavities and convexities has a frustum shape, a fill ratio of the concave-convex structure is 15% or greater, and a light transmittance is 50% or greater.Type: ApplicationFiled: October 5, 2018Publication date: October 1, 2020Applicant: DEXERIALS CORPORATIONInventors: Koji SASAKI, Hiroshi SUGATA, Naoki HANASHIMA
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Publication number: 20200278583Abstract: There is provided a novel and improved optical body, method for manufacturing an optical body, light-emitting apparatus, and image display apparatus capable of improving emitted luminance and transparency, the optical body including: a base material; and a light extraction section, formed on at least one surface of the base material, that extracts internally propagated light incident inside the base material from a side face of the base material to an outside of the base material. The light extraction section includes a concave-convex structure in which at least one of concavities and convexities has a frustum shape, a fill ratio of the concave-convex structure is 15% or greater, and a light transmittance is 50% or greater.Type: ApplicationFiled: October 5, 2018Publication date: September 3, 2020Applicant: DEXERIALS CORPORATIONInventors: Koji SASAKI, Hiroshi SUGATA, Naoki HANASHIMA
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Patent number: 10732341Abstract: There is provided an optical body including: a base material; a second optical layer, formed on at least one surface of the base material, that reduces a reflection of extraneous light; and a first optical layer, laminated on top of a part of the second optical layer, that extracts internally propagating light incident inside the base material from a side face of the base material to an outside of the base material. On a surface of the first optical layer, a first concave-convex structure that reflects the internally propagating light is formed.Type: GrantFiled: September 28, 2018Date of Patent: August 4, 2020Assignee: DEXERIALS CORPORATIONInventors: Koji Sasaki, Hiroshi Sugata, Naoki Hanashima
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Publication number: 20200223150Abstract: Provided is a laminate that includes a thin-film structure having a fine concave-convex structure at its surface, can be distributed on the market so that the thin-film structure is usable by a customer without staining or fracturing, and can be prevented from degradation even after storage. A laminate comprises a thin-film structure and holding films, wherein a first holding film is laminated on one surface of the thin-film structure and a second holding film is laminated on the other surface of the thin-film structure, the thin-film structure has fine concave-convex structures at both surfaces, and 0<P1, 0<P2, and P1?P2, where P1 is a peel force at an interface between the first holding film and the thin-film structure and P2 is a peel force at an interface between the second holding film and the thin-film structure.Type: ApplicationFiled: June 29, 2018Publication date: July 16, 2020Applicant: Dexerials CorporationInventors: Shunichi KAJIYA, Hiroshi SUGATA
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Publication number: 20200217992Abstract: Provided is a fine concave-convex laminate that is reduced in thickness, has excellent antireflection performance, and can suppress scattering and absorption of short-wavelength light. A fine concave-convex laminate comprises a substrate, a first transparent organic layer, and a second transparent organic layer laminated in the stated order, wherein the first transparent organic layer has a fine concave-convex structure at a surface facing the second transparent organic layer, the second transparent organic layer has fine concave-convex structures at both surfaces, and a thickness of a composite layer composed of the first transparent organic layer and the second transparent organic layer is 15 ?m or less.Type: ApplicationFiled: June 29, 2018Publication date: July 9, 2020Applicant: Dexerials CorporationInventors: Shunichi KAJIYA, Kazuya HAYASHIBE, Naoki HANASHIMA, Hiroshi SUGATA
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Publication number: 20190101685Abstract: There is provided an optical body including: a base material; a second optical layer, formed on at least one surface of the base material, that reduces a reflection of extraneous light; and a first optical layer, laminated on top of a part of the second optical layer, that extracts internally propagating light incident inside the base material from a side face of the base material to an outside of the base material. On a surface of the first optical layer, a first concave-convex structure that reflects the internally propagating light is formed.Type: ApplicationFiled: September 28, 2018Publication date: April 4, 2019Applicant: DEXERIALS CORPORATIONInventors: Koji SASAKI, Hiroshi SUGATA, Naoki HANASHIMA
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Publication number: 20180258273Abstract: A cyclic olefin resin composition film having high toughness with less difference in toughness between length and width directions. The cyclic olefin resin composition film contains a cyclic olefin resin, a styrene elastomer and inorganic oxide fine particles having an average particle diameter of 40 nm or smaller, and has a linear expansion coefficient of 40 ppm/° C. to 60 ppm/° C. This film attains high toughness with less difference in toughness between length and width directions.Type: ApplicationFiled: November 18, 2015Publication date: September 13, 2018Applicant: Dexerials CorporationInventors: Ken HOSOYA, Akihiro HORII, Kei OBATA, Taku ISHIMORI, Kazuki HIRATA, Hiroshi SUGATA
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Publication number: 20150153498Abstract: A phase difference element that can suppress a change in retardation by tilt in a Z-axis direction has an in-plane retardation R0 and a retardation Rth in a thickness direction that satisfy 0.7×R0?Rth?1.3×R0 (R0: |Nx?Ny|×d, Rth: |((Nx+Ny)/2)?Nz|×d, Nx: refractive index in width direction, Ny: refractive index in longitudinal direction, Nz: refractive index in thickness direction, and d: element thickness).Type: ApplicationFiled: August 1, 2013Publication date: June 4, 2015Inventors: Hiroshi Hayashi, Akihiro Horii, Taku Ishimori, Ken Hosoya, Hiroshi Sugata
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Patent number: 7184567Abstract: A thin speaker having a magnetic circuit (2) disposed at the front of a cone-like diaphragm, wherein an internal magnetic type magnetic circuit (2) and a vibration system are supported by a sufficiently strong frame formed of two pieces having an outline of generally disk-shape and partly overlapped concentrically with each other, the acoustic characteristics are prevented from being deteriorated by preventing support bodies (7, 7A) for the magnetic circuit (2) from covering the forward of the sound emitting face of the cone-like diaphragm (3), and speaker component parts are formed so as to be assembled by stacking on one jig (1) from one direction with a specified procedure, whereby an assemblability can be improved.Type: GrantFiled: February 24, 2003Date of Patent: February 27, 2007Assignee: Foster Electric Co., Ltd.Inventors: Hiroshi Sugata, Hirohumi Onohara
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Publication number: 20050201589Abstract: A thin speaker having a magnetic circuit (2) disposed at the front of a cone-like diaphragm, wherein an internal magnetic type magnetic circuit (2) and a vibration system are supported by a sufficiently strong frame formed of two pieces having an outline of generally disk-shape and partly overlapped concentrically with each other, the acoustic characteristics are prevented from being deteriorated by preventing support bodies (7, 7A) for the magnetic circuit (2) from covering the forward of the sound emitting face of the cone-like diaphragm (3), and speaker component parts are formed so as to be assembled by stacking on one jig (1) from one direction with a specified procedure, whereby an assemblability can be improved.Type: ApplicationFiled: February 24, 2003Publication date: September 15, 2005Applicant: Foster Electric Co., Ltd.Inventors: Hiroshi Sugata, Hirohumi Onohara
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Patent number: 6832106Abstract: A diaphragm for electroacoustic transducers including loudspeakers as formed substantially in a dome shape having an outer periphery of a circular shape and made excellent in tone quality is provided. The dome shape of the diaphragm has an irregular section with a central arcuate edge line of a radius of curvature across the circular outer periphery and passing through an apex of the dome shape, and side surfaces formed on both sides of the central edge line respectively to have side edge lines intersecting at right angles the central edge line and having a radius of curvature larger than that of the central edge line. The side edge lines of both side surfaces are of constant radius of curvature at least in one of the surfaces or of mutually equal radius of curvature at all positions intersecting the central edge line, to be mutually asymmetric or symmetric for dispersing resonating portions over the whole area of the dome shape.Type: GrantFiled: May 20, 2003Date of Patent: December 14, 2004Assignee: Foster Electric Co., Ltd.Inventors: Hiroshi Sugata, Kenta Yujima