Patents by Inventor Masutsugu Tasaki
Masutsugu Tasaki 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: 11476395Abstract: A light source that emits light, wherein, in coordinates in a CIE 1931 chromaticity diagram, the light has a color purity included in a region of 2 to 50 in a region surrounded by a line segment WB and a line segment WG that connect coordinates W (0.33, 0.33) indicating an achromatic color with coordinates B (0.091, 0.133) of 480 nm and coordinates G (0.373, 0.624) of 560 nm on a spectral locus, and the spectral locus, and has an area occupied by a continuous spectral wavelength in a wavelength region of 480 to 540 nm, of 15% or more relative to an area of an overall spectral wavelength of the light source at 380 to 780 nm.Type: GrantFiled: July 11, 2019Date of Patent: October 18, 2022Assignees: ASAHI RUBBER INC., NATIONAL UNIVERSITY CORPORATION SAITAMA UNIVERSITYInventors: Naoya Mashiko, Takashi Kanahira, Masutsugu Tasaki, Eiji Ishiguro, Keiichi Watanuki, Keiichi Muramatsu, Kazunori Kaede
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Patent number: 11326065Abstract: A versatile silicone resin reflective substrate which exhibits high reflectance of high luminance light from an LED light source over a wide wavelength from short wavelengths of approximately 340-500 nm, which include wavelengths from 380-400 nm near lower limit of the visible region, to longer wavelength in the infra-red region. The silicone resin reflective substrate has a reflective layer which contains a white inorganic filler powder dispersed in a three-dimensional cross linked silicone resin, the inorganic filler powder having a high reflective index than the silicone resin. The reflective layer is formed on a support body as a film, a solid, or a sheet. The silicone resin reflective substrate can be easily formed as a wiring substrate, a packaging case or the like, and can be manufactured at low cost and a high rate of production.Type: GrantFiled: November 25, 2019Date of Patent: May 10, 2022Assignee: ASAHI RUBBER INC.Inventors: Masutsugu Tasaki, Naoto Igarashi, Akira Ichikawa, Tsutomu Odaki, Maimi Yoshida
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Publication number: 20210367115Abstract: A light source that emits light, wherein, in coordinates in a CIE 1931 chromaticity diagram, the light has a color purity included in a region of 2 to 50 in a region surrounded by a line segment WB and a line segment WG that connect coordinates W (0.33, 0.33) indicating an achromatic color with coordinates B (0.091, 0.133) of 480 nm and coordinates G (0.373, 0.624) of 560 nm on a spectral locus, and the spectral locus, and has an area occupied by a continuous spectral wavelength in a wavelength region of 480 to 540 nm, of 15% or more relative to an area of an overall spectral wavelength of the light source at 380 to 780 nm.Type: ApplicationFiled: July 11, 2019Publication date: November 25, 2021Applicants: ASAHI RUBBER INC., NATIONAL UNIVERSITY CORPORATION SAITAMA UNIVERSITYInventors: Naoya MASHIKO, Takashi KANAHIRA, Masutsugu TASAKI, Eiji ISHIGURO, Keiichi WATANUKI, Keiichi MURAMATSU, Kazunori KAEDE
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Patent number: 11094857Abstract: Provided is a lighting device that emits light of a color that approximates the color of the surface of an object or the like. Disclosed is a method for manufacturing a lighting device, including the steps of: spectroscopically measuring a spectrum that constitutes a color of a measurement target; and adjusting a color of a light source such that an emission spectrum approximates the spectrum that constitutes the color of the measurement target.Type: GrantFiled: March 28, 2017Date of Patent: August 17, 2021Assignee: ASAHI RUBBER INC.Inventors: Eiji Ishiguro, Takashi Kanahira, Masutsugu Tasaki, Naoya Mashiko
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Publication number: 20200095430Abstract: A versatile silicone resin reflective substrate which exhibits high reflectance of high luminance light from an LED light source over a wide wavelength from short wavelengths of approximately 340-500 nm, which include wavelengths from 380-400 nm near lower limit of the visible region, to longer wavelength in the infra-red region. The silicone resin reflective substrate has a reflective layer which contains a white inorganic filler powder dispersed in a three-dimensional cross linked silicone resin, the inorganic filler powder having a high reflective index than the silicone resin. The reflective layer is formed on a support body as a film, a solid, or a sheet. The silicone resin reflective substrate can be easily formed as a wiring substrate, a packaging case or the like, and can be manufactured at low cost and a high rate of production.Type: ApplicationFiled: November 25, 2019Publication date: March 26, 2020Applicant: ASAHI RUBBER INC.Inventors: Masutsugu TASAKI, Naoto IGARASHI, Akira ICHIKAWA, Tsutomu ODAKI, Maimi YOSHIDA
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Publication number: 20200044122Abstract: Provided is a lighting device that emits light of a color that approximates the color of the surface of an object or the like. Disclosed is a method for manufacturing a lighting device, including the steps of: spectroscopically measuring a spectrum that constitutes a color of a measurement target; and adjusting a color of a light source such that an emission spectrum approximates the spectrum that constitutes the color of the measurement target.Type: ApplicationFiled: March 28, 2017Publication date: February 6, 2020Applicant: ASAHI RUBBER INC.Inventors: Eiji ISHIGURO, Takashi KANAHIRA, Masutsugu TASAKI, Naoya MASHIKO
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Patent number: 10533094Abstract: A versatile silicone resin reflective substrate which exhibits high reflectance of high luminance light from an LED light source over a wide wavelength from short wavelengths of approximately 340-500 nm, which include wavelengths from 380-400 nm near lower limit of the visible region, to longer wavelength in the infra-red region. The silicone resin reflective substrate has a reflective layer which contains a white inorganic filler powder dispersed in a three-dimensional cross linked silicone resin, the inorganic filler powder having a high reflective index than the silicone resin. The reflective layer is formed on a support body as a film, a solid, or a sheet. The silicone resin reflective substrate can be easily formed as a wiring substrate, a packaging case or the like, and can be manufactured at low cost and a high rate of production.Type: GrantFiled: January 5, 2017Date of Patent: January 14, 2020Assignee: ASAHI RUBBER INC.Inventors: Masutsugu Tasaki, Naoto Igarashi, Akira Ichikawa, Tsutomu Odaki, Maimi Yoshida
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Patent number: 10351713Abstract: There is provided an ink for white reflective film formation including: a liquid binder resin component containing a crosslinkable silicone liquid resin and crosslinkable silicone resin particles; and titanium oxide particles, the ink containing 10 to 500 parts by mass of the titanium oxide particles relative to a solid content of a total of 100 parts by mass in the liquid binder resin component.Type: GrantFiled: April 24, 2017Date of Patent: July 16, 2019Assignee: ASAHI RUBBER INC.Inventors: Masutsugu Tasaki, Naoto Igarashi
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Patent number: 9803829Abstract: A lens for light emitting lamps that use light emitting elements such as LEDs, etc., is provided. The lens has a specific surface shape for light-distribution control to achieve desired light distributions, as well as a light emitting device using said lens. On the lens surface of the light emitting side which has a double-peak shape to obtain a light distribution characteristic having long and short two axes, by possessing a straight-line part in the surface shape of the light emitting side viewed on the lens short-axis cross section, a desired smoothly-diffused light distribution having a longitudinal direction with a certain width is obtained. The lens may be designed to have a surface of the light emitting side comprising a collection of straight lines parallel to the lens short-axis cross section, or to have a continuous curved surface comprising a collection of straight lines parallel to the lens short axis.Type: GrantFiled: March 27, 2015Date of Patent: October 31, 2017Assignees: ASAHI RUBBER, INC., NICHIA CORPORATIONInventors: Takayuki Motoyanagi, Munetomo Nakamura, Masutsugu Tasaki, Hiroki Oguro
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Publication number: 20170267867Abstract: There is provided an ink for white reflective film formation including: a liquid binder resin component containing a crosslinkable silicone liquid resin and crosslinkable silicone resin particles; and titanium oxide particles, the ink containing 10 to 500 parts by mass of the titanium oxide particles relative to a solid content of a total of 100 parts by mass in the liquid binder resin component.Type: ApplicationFiled: April 24, 2017Publication date: September 21, 2017Applicant: ASAHI RUBBER INC.Inventors: Masutsugu TASAKI, Naoto IGARASHI
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Patent number: 9663664Abstract: There is provided an ink for white reflective film formation including: a liquid binder resin component containing a crosslinkable silicone liquid resin and crosslinkable silicone resin particles; and titanium oxide particles, the ink containing 10 to 500 parts by mass of the titanium oxide particles relative to a solid content of a total of 100 parts by mass in the liquid binder resin component.Type: GrantFiled: February 26, 2014Date of Patent: May 30, 2017Assignee: ASAHI RUBBER INC.Inventors: Masutsugu Tasaki, Naoto Igarashi
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Publication number: 20170114226Abstract: A versatile silicone resin reflective substrate which exhibits high reflectance of high luminance light from an LED light source over a wide wavelength from short wavelengths of approximately 340-500 nm, which include wavelengths from 380-400 nm near lower limit of the visible region, to longer wavelength in the infra-red region. The silicone resin reflective substrate has a reflective layer which contains a white inorganic filler powder dispersed in a three-dimensional cross linked silicone resin, the inorganic filler powder having a high reflective index than the silicone resin. The reflective layer is formed on a support body as a film, a solid, or a sheet. The silicone resin reflective substrate can be easily formed as a wiring substrate, a packaging case or the like, and can be manufactured at low cost and a high rate of production.Type: ApplicationFiled: January 5, 2017Publication date: April 27, 2017Applicant: ASAHI RUBBER INC.Inventors: Masutsugu TASAKI, Naoto IGARASHI, Akira ICHIKAWA, Tsutomu ODAKI, Maimi YOSHIDA
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Patent number: 9574050Abstract: A versatile silicone resin reflective substrate which exhibits high reflectance of high luminance light from an LED light source over a wide wavelength from short wavelengths of approximately 340-500 nm, which include wavelengths from 380-400 nm near lower limit of the visible region, to longer wavelength in the infra-red region. The silicone resin reflective substrate has a reflective layer which contains a white inorganic filler powder dispersed in a three-dimensional cross linked silicone resin, the inorganic filler powder having a high reflective index than the silicone resin. The reflective layer is formed on a support body as a film, a solid, or a sheet. The silicone resin reflective substrate can be easily formed as a wiring substrate, a packaging case or the like, and can be manufactured at low cost and a high rate of production.Type: GrantFiled: December 24, 2010Date of Patent: February 21, 2017Assignee: ASAHI RUBBER INC.Inventors: Masutsugu Tasaki, Naoto Igarashi, Akira Ichikawa, Tsutomu Odaki, Maimi Yoshida
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Publication number: 20150361270Abstract: There is provided an ink for white reflective film formation including: a liquid binder resin component containing a crosslinkable silicone liquid resin and crosslinkable silicone resin particles; and titanium oxide particles, the ink containing 10 to 500 parts by mass of the titanium oxide particles relative to a solid content of a total of 100 parts by mass in the liquid binder resin component.Type: ApplicationFiled: February 26, 2014Publication date: December 17, 2015Applicant: ASAHI RUBBER INC.Inventors: Masutsugu TASAKI, Naoto IGARASHI
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Publication number: 20150276170Abstract: A lens for light emitting lamps that use light emitting elements such as LEDs, etc., is provided. The lens has a specific surface shape for light-distribution control to achieve desired light distributions, as well as a light emitting device using said lens. On the lens surface of the light emitting side which has a double-peak shape to obtain a light distribution characteristic having long and short two axes, by possessing a straight-line part in the surface shape of the light emitting side viewed on the lens short-axis cross section, a desired smoothly-diffused light distribution having a longitudinal direction with a certain width is obtained. The lens may be designed to have a surface of the light emitting side comprising a collection of straight lines parallel to the lens short-axis cross section, or to have a continuous curved surface comprising a collection of straight lines parallel to the lens short axis.Type: ApplicationFiled: March 27, 2015Publication date: October 1, 2015Inventors: TAKAYUKI MOTOYANAGI, MUNETOMO NAKAMURA, MASUTSUGU TASAKI, HIROKI OGURO
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Patent number: 9018663Abstract: A lens-equipped optical semiconductor device including: an optical semiconductor device including at least one optical semiconductor element mounted on a substrate and a transparent resin encapsulating body that encapsulates the optical semiconductor element; a resin lens having a recessed portion for housing the transparent resin encapsulating body; and a transparent resin layer filled into a space among the substrate, the recessed portion, and the transparent resin encapsulating body, wherein the recessed portion has a capacity that is at least 1.1 times a total volume of the optical semiconductor element and the transparent resin encapsulating body.Type: GrantFiled: April 25, 2012Date of Patent: April 28, 2015Assignee: Asahi Rubber Inc.Inventors: Masutsugu Tasaki, Akira Ichikawa, Hideaki Sato, Satoshi Endo, Takayuki Motoyanagi, Yoshihiro Okabe, Yoichi Orikasa, Masaru Azuma
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Patent number: 8704258Abstract: A general-use white color reflecting material, and a process for production thereof are provided. The white color reflecting material, without troublesome surface treatment such as formation of a reflective layer by plating, is capable of reflecting a near-ultraviolet ray of a wavelength region of 380 nm or longer or a near-infrared ray sufficiently without light leakage; does not become yellow even when exposed to near-ultraviolet rays; has excellent lightfastness, heat resistance, and weatherability; has high mechanical strength and chemical stability; is capable of maintaining a high degree of whiteness; and is easily moldable at a low cost. Further a white color reflecting material used as an ink composition for producing the white color reflecting material in a film shape is also provided.Type: GrantFiled: June 25, 2010Date of Patent: April 22, 2014Assignee: Asahi Rubber Inc.Inventors: Masutsugu Tasaki, Naoto Igarashi, Tsutomu Odaki, Maimi Yoshida
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Publication number: 20140027807Abstract: A lens-equipped optical semiconductor device including: an optical semiconductor device including at least one optical semiconductor element mounted on a substrate and a transparent resin encapsulating body that encapsulates the optical semiconductor element; a resin lens having a recessed portion for housing the transparent resin encapsulating body; and a transparent resin layer filled into a space among the substrate, the recessed portion, and the transparent resin encapsulating body, wherein the recessed portion has a capacity that is at least 1.1 times a total volume of the optical semiconductor element and the transparent resin encapsulating body.Type: ApplicationFiled: April 25, 2012Publication date: January 30, 2014Inventors: Masutsugu Tasaki, Akira Ichikawa, Hideaki Sato, Satoshi Endo, Takayuki Motoyanagi, Yoshihiro Okabe, Yoichi Orikasa, Masaru Azuma
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Publication number: 20130011617Abstract: A versatile silicone resin reflective substrate which exhibits high reflectance of high luminance light from an LED light source over a wide wavelength from short wavelengths of approximately 340-500 nm, which include wavelengths from 380-400 nm near lower limit of the visible region, to longer wavelength in the infra-red region. The silicone resin reflective substrate has a reflective layer which contains a white inorganic filler powder dispersed in a three-dimensional cross linked silicone resin, the inorganic filler powder having a high reflective index than the silicone resin. The reflective layer is formed on a support body as a film, a solid, or a sheet. The silicone resin reflective substrate can be easily formed as a wiring substrate, a packaging case or the like, and can be manufactured at low cost and a high rate of production.Type: ApplicationFiled: December 24, 2010Publication date: January 10, 2013Applicant: ASAHI RUBBER INC.Inventors: Masutsugu Tasaki, Naoto Igarashi, Akira Ichikawa, Tsutomu Odaki, Maimi Yoshida
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Publication number: 20120138997Abstract: A general-use white color reflecting material, and a process for production thereof are provided. The white color reflecting material, without troublesome surface treatment such as formation of a reflective layer by plating, is capable of reflecting a near-ultraviolet ray of a wavelength region of 380 nm or longer or a near-infrared ray sufficiently without light leakage; does not become yellow even when exposed to near-ultraviolet rays; has excellent lightfastness, heat resistance, and weatherability; has high mechanical strength and chemical stability; is capable of maintaining a high degree of whiteness; and is easily moldable at a low cost. Further a white color reflecting material used as an ink composition for producing the white color reflecting material in a film shape is also provided.Type: ApplicationFiled: June 25, 2010Publication date: June 7, 2012Applicant: ASAHI RUBBER INC.Inventors: Masutsugu Tasaki, Naoto Igarashi, Tsutomu Odaki, Maimi Yoshida