Patents by Inventor Kimitaka Nishimura
Kimitaka Nishimura 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: 11124657Abstract: A transparent laminate including a transparent substrate and structure layer, wherein the structure layer contains protrusion portions, depression portions, or both on a surface thereof, and an average distance between the adjacent protrusion portions or between the adjacent depression portions is equal to or less than a visible light wavelength, the structure layer includes a polymerized product of an active energy ray curable resin composition, the resin composition includes a composition of a (meth)acryloyl group-containing polymerizable compound, the compound composition includes one or more from each of (A), (B), and (C): (A) a monofunctional (meth)acryloyl group-containing polymerizable compound; (B) alkylene glycol di(meth)acrylate; and (C) trifunctional or higher (meth)acrylate, the (A) satisfies certain conditions specifying a type and amount of a compound, and a ratio (E?150/E?50) of storage elastic modulus E?150 of the structure layer at 150° C. to storage elastic modulus E?50 thereof at 50° C.Type: GrantFiled: May 13, 2016Date of Patent: September 21, 2021Assignee: Dexerials CorporationInventors: Eiji Ohta, Masayasu Kakinuma, Masaki Takenouchi, Satoshi Kawamura, Kiyoaki Tanifuji, Emi Yoshida, Kimitaka Nishimura, Shunichi Kajiya, Shigehisa Ohkawara, Maki Ogawa
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Patent number: 10866436Abstract: There is provided a novel and improved eyeglasses protection device capable of suppressing occurrence of reflected light that may enter eyes of a user of the eyeglasses protection device and thus reducing fatigue of the user, the eyeglasses protection device including: a lens surface protective part configured to protect a lens surface of eyeglasses. The lens surface protective part is equipped with a substrate film, and a micro concavo-convex structure that is formed on a surface of the substrate film, with an average period of the concavo-convex part being equal to or less than a wavelength of visible light. According to the aforementioned viewpoint of the present invention, it is possible to suppress occurrence of reflected light that may enter eyes of a user of the eyeglasses protection device because the micro concavo-convex structure is formed in the lens surface protective part of the eyeglasses protection device.Type: GrantFiled: May 7, 2015Date of Patent: December 15, 2020Assignee: DEXERIALS CORPORATIONInventors: Kimitaka Nishimura, Satoshi Kawamura
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Patent number: 10575572Abstract: There is provided a transparent film for a face protection shield in which transparency is enhanced and visibility from a non-wearer is also enhanced, the transparent film for a face protection shield including: a transparent base material having flexibility; and a transparent resin layer configured to be laminated on at least one of surfaces of the transparent base material, the transparent resin layer having on a surface a plurality of structural bodies including concavities or convexities provided at a pitch of less than or equal to a visible light wavelength. A refractive index of the transparent base material is different from a refractive index of the transparent resin layer, and an interface between the transparent base material and the transparent resin layer has a concave-convex shape.Type: GrantFiled: May 27, 2015Date of Patent: March 3, 2020Assignee: DEXERIALS CORPORATIONInventors: Masayasu Kakinuma, Kimitaka Nishimura, Satoshi Kawamura, Hideki Terashima, Eiji Ohta, Shunichi Kajiya, Jun Sasaki, Kiyoaki Tanifuji
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Patent number: 10175390Abstract: An optical element is provided which reflects a reduced amount of light even under a very high intensity lighting system used for a surgical operation, a dental treatment etc., has anti-fogging performance, and is transparent and useful for face protection. The optical element has a flexible transparent substrate and a plurality of structures disposed on opposite surfaces of the substrate at a pitch equal to or less than the wavelength of visible light. The structures are formed from a cured product of a resin having a hydrophilic functional group.Type: GrantFiled: January 16, 2014Date of Patent: January 8, 2019Assignee: DEXERIALS CORPORATIONInventors: Kimitaka Nishimura, Toru Abiko, Shinichi Matsumura
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Patent number: 10000037Abstract: The purpose of the present invention is to prevent an increase in reflectance and a decrease in transmittance, retain the intact instantaneousness and ease of stripping, improve the releasability of the adhesive, avoid the generation of distortion due to the thickness of the adhesive, and ensure the visibility, by laminating filmy members (10) each equipped with a moth-eye structure (12). This transparent laminate (1) comprises a plurality of filmy members (10) which each comprise a base (11) and, disposed on at least one surface thereof, a structure (12) made up of recesses and protrusions which have been regularly arranged at a pitch not longer than the wavelengths of visible light. At least the ends of the filmy members (10) have been superposed, with a pressure-sensitive adhesive layer (2) interposed therebetween. In the superposed filmy members (10), there is a space (14) between the opposed structures (12).Type: GrantFiled: June 4, 2014Date of Patent: June 19, 2018Assignee: Dexerials CorporationInventors: Kimitaka Nishimura, Emi Yoshida, Eiji Ohta, Shinichi Matsumura, Shigehisa Ohkawara
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Publication number: 20180148578Abstract: A transparent laminate including a transparent substrate and structure layer, wherein the structure layer contains protrusion portions, depression portions, or both on a surface thereof, and an average distance between the adjacent protrusion portions or between the adjacent depression portions is equal to or less than a visible light wavelength, the structure layer includes a polymerized product of an active energy ray curable resin composition, the resin composition includes a composition of a (meth)acryloyl group-containing polymerizable compound, the compound composition includes one or more from each of (A), (B), and (C): (A) a monofunctional (meth)acryloyl group-containing polymerizable compound; (B) alkylene glycol di(meth)acrylate; and (C) trifunctional or higher (meth)acrylate, the (A) satisfies certain conditions specifying a type and amount of a compound, and a ratio (E?150/E?50) of storage elastic modulus E?150 of the structure layer at 150° C. to storage elastic modulus E?50 thereof at 50° C.Type: ApplicationFiled: May 13, 2016Publication date: May 31, 2018Inventors: Eiji Ohta, Masayasu Kakinuma, Masaki Takenouchi, Satoshi Kawamura, Kiyoaki Tanifuji, Emi Yoshida, Kimitaka Nishimura, Shunichi Kajiya, Shigehisa Ohkawara, Maki Ogawa
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Publication number: 20170208878Abstract: There is provided a transparent film for a face protection shield in which transparency is enhanced and visibility from a non-wearer is also enhanced, the transparent film for a face protection shield including: a transparent base material having flexibility; and a transparent resin layer configured to be laminated on at least one of surfaces of the transparent base material, the transparent resin layer having on a surface a plurality of structural bodies including concavities or convexities provided at a pitch of less than or equal to a visible light wavelength. A refractive index of the transparent base material is different from a refractive index of the transparent resin layer, and an interface between the transparent base material and the transparent resin layer has a concave-convex shape.Type: ApplicationFiled: May 27, 2015Publication date: July 27, 2017Applicant: DEXERIALS CORPORATIONInventors: Masayasu KAKINUMA, Kimitaka NISHIMURA, Satoshi KAWAMURA, Hideki TERASHIMA, Eiji OHTA, Shunichi KAJIYA, Jun SASAKI, Kiyoaki TANIFUJI
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Publication number: 20170075146Abstract: There is provided a novel and improved eyeglasses protection device capable of suppressing occurrence of reflected light that may enter eyes of a user of the eyeglasses protection device and thus reducing fatigue of the user, the eyeglasses protection device including: a lens surface protective part configured to protect a lens surface of eyeglasses. The lens surface protective part is equipped with a substrate film, and a micro concavo-convex structure that is formed on a surface of the substrate film, with an average period of the concavo-convex part being equal to or less than a wavelength of visible light. According to the aforementioned viewpoint of the present invention, it is possible to suppress occurrence of reflected light that may enter eyes of a user of the eyeglasses protection device because the micro concavo-convex structure is formed in the lens surface protective part of the eyeglasses protection device.Type: ApplicationFiled: May 7, 2015Publication date: March 16, 2017Applicant: DEXERIALS CORPORATIONInventors: Kimitaka NISHIMURA, Satoshi KAWAMURA
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Publication number: 20160193808Abstract: The purpose of the present invention is to prevent an increase in reflectance and a decrease in transmittance, retain the intact instantaneousness and ease of stripping, improve the releasability of the adhesive, avoid the generation of distortion due to the thickness of the adhesive, and ensure the visibility, by laminating filmy members (10) each equipped with a moth-eye structure (12). This transparent laminate (1) comprises a plurality of filmy members (10) which each comprise a base (11) and, disposed on at least one surface thereof, a structure (12) made up of recesses and protrusions which have been regularly arranged at a pitch not longer than the wavelengths of visible light. At least the ends of the filmy members (10) have been superposed, with a pressure-sensitive adhesive layer (2) interposed therebetween. In the superposed filmy members (10), there is a space (14) between the opposed structures (12).Type: ApplicationFiled: June 4, 2014Publication date: July 7, 2016Inventors: Kimitaka NISHIMURA, Emi YOSHIDA, Eiji OHTA, Shinichi MATSUMURA, Shigehisa OHKAWARA
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Publication number: 20150323704Abstract: An optical element is provided which reflects a reduced amount of light even under a very high intensity lighting system used for a surgical operation, a dental treatment etc., has anti-fogging performance, and is transparent and useful for face protection. The optical element has a flexible transparent substrate and a plurality of structures disposed on opposite surfaces of the substrate at a pitch equal to or less than the wavelength of visible light. The structures are formed from a cured product of a resin having a hydrophilic functional group.Type: ApplicationFiled: January 16, 2014Publication date: November 12, 2015Inventors: Kimitaka NISHIMURA, Toru ABIKO, Shinichi MATSUMURA
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Patent number: 8309903Abstract: In an optical device, a number of structures having higher portions or lower portions are arranged at a fine pitch equal to or shorter than a wavelength of visible light on a surface of a base. Each of the structures is arranged to form a plurality of arc track rows on the surface of the base, and to form a quasi-hexagonal lattice pattern, and the structure has an elliptical cone or truncated elliptical cone shape having a major axis in a circumferential direction of the arc tracks.Type: GrantFiled: December 9, 2009Date of Patent: November 13, 2012Assignees: Sony Corporation, Sony Disc & Digital Solutions Inc.Inventors: Sohmei Endoh, Kazuya Hayashibe, Tooru Nagai, Ikuhiro Hideta, Shirasagi Toshihiko, Kimitaka Nishimura, Tadao Suzuki
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Publication number: 20120092756Abstract: An optical body including an optical layer having a belt-like or rectangular shape and having an incident surface on which light is incident, and a reflective layer formed in the optical layer and having a corner cube shape, wherein the reflective layer directionally reflects the light incident on the incident surface at an incident angle (?, ?), and a direction of a ridge of the corner cube shape is substantially parallel to a lengthwise direction of the belt-shaped or rectangular optical layer. ? is an angle formed by a perpendicular line with respect to the incident surface and the incident light incident on the incident surface or reflected light emerging from the incident surface, and ? is an angle formed by the ridge of the corner cube shape and a component resulting from projecting the incident light or the reflected light to the incident surface).Type: ApplicationFiled: February 23, 2011Publication date: April 19, 2012Applicant: SONY CORPORATIONInventors: Hironori Yoshida, Masashi Enomoto, Tsutomu Nagahama, Kimitaka Nishimura, Hayato Hasegawa
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Patent number: D792498Type: GrantFiled: June 18, 2015Date of Patent: July 18, 2017Assignee: DEXERIALS CORPORATIONInventors: Eiji Ohta, Shigehisa Ohkawara, Satoshi Kawamura, Kimitaka Nishimura
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Patent number: D792920Type: GrantFiled: June 18, 2015Date of Patent: July 25, 2017Assignee: DEXERIALS CORPORATIONInventors: Eiji Ohta, Shigehisa Ohkawara, Satoshi Kawamura, Kimitaka Nishimura
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Patent number: D801421Type: GrantFiled: May 12, 2017Date of Patent: October 31, 2017Assignee: DEXERIALS CORPORATIONInventors: Eiji Ohta, Shigehisa Ohkawara, Satoshi Kawamura, Kimitaka Nishimura
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Patent number: D801422Type: GrantFiled: May 12, 2017Date of Patent: October 31, 2017Assignee: DEXERIALS CORPORATIONInventors: Eiji Ohta, Shigehisa Ohkawara, Satoshi Kawamura, Kimitaka Nishimura
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Patent number: D801423Type: GrantFiled: May 12, 2017Date of Patent: October 31, 2017Assignee: DEXERIALS CORPORATIONInventors: Eiji Ohta, Shigehisa Ohkawara, Satoshi Kawamura, Kimitaka Nishimura
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Patent number: D801424Type: GrantFiled: May 12, 2017Date of Patent: October 31, 2017Assignee: DEXERIALS CORPORATIONInventors: Eiji Ohta, Shigehisa Ohkawara, Satoshi Kawamura, Kimitaka Nishimura
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Patent number: D804565Type: GrantFiled: May 12, 2017Date of Patent: December 5, 2017Assignee: DEXERAILS CORPORATIONInventors: Eiji Ohta, Shigehisa Ohkawara, Satoshi Kawamura, Kimitaka Nishimura
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Patent number: D805577Type: GrantFiled: August 10, 2016Date of Patent: December 19, 2017Assignee: Dexerials CorporationInventor: Kimitaka Nishimura