Patents by Inventor Masanobu Okano
Masanobu Okano 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: 10396254Abstract: A light emitting device which emits a secondary light with high color purity and has a fast response speed is obtained. A KSF phosphor (15) which absorbs a part of blue light and emits red light and a CASN phosphor (16) are distributed in a resin (14) which seals an LED chip (13) which emits the blue light. The KSF phosphor (15) absorbs the blue light and emits the red light by forbidden transition, and the CASN phosphor (16) absorbs the blue light and emits the red light by allowed transition.Type: GrantFiled: October 25, 2018Date of Patent: August 27, 2019Assignee: SHARP KABUSHIKI KAISHAInventors: Atsushi Yamashita, Masatsugu Masuda, Toyonori Uemura, Masanobu Okano, Masayuki Ohta
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Publication number: 20190067532Abstract: A light emitting device which emits a secondary light with high color purity and has a fast response speed is obtained. A KSF phosphor (15) which absorbs a part of blue light and emits red light and a CASN phosphor (16) are distributed in a resin (14) which seals an LED chip (13) which emits the blue light. The KSF phosphor (15) absorbs the blue light and emits the red light by forbidden transition, and the CASN phosphor (16) absorbs the blue light and emits the red light by allowed transition.Type: ApplicationFiled: October 25, 2018Publication date: February 28, 2019Inventors: Atsushi YAMASHITA, Masatsugu MASUDA, Toyonori UEMURA, Masanobu OKANO, Masayuki OHTA
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Patent number: 10158053Abstract: A light emitting device which emits a secondary light with high color purity and has a fast response speed is obtained. A KSF phosphor (15) which absorbs a part of blue light and emits red light and a CASN phosphor (16) are distributed in a resin (14) which seals an LED chip (13) which emits the blue light. The KSF phosphor (15) absorbs the blue light and emits the red light by forbidden transition, and the CASN phosphor (16) absorbs the blue light and emits the red light by allowed transition.Type: GrantFiled: February 16, 2017Date of Patent: December 18, 2018Assignee: SHARP KABUSHIKI KAISHAInventors: Atsushi Yamashita, Masatsugu Masuda, Toyonori Uemura, Masanobu Okano, Masayuki Ohta
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Patent number: 10018776Abstract: An illumination device (11) includes a light guide plate (15) and a light source unit (10) which includes a substrate (12) and a plurality of LED chips (16) disposed on the substrate (12), and which is disposed in a position at which emitted light of the LED chips (16) enters a light entrance portion (15a) of the light guide plate (15). The LED chips (16) are disposed to form a plurality of rows on the substrate (12), and are disposed to line up in a direction which orthogonally intersects the rows between each of the rows.Type: GrantFiled: April 10, 2014Date of Patent: July 10, 2018Assignee: Sharp Kabushiki KaishaInventors: Masayuki Itoh, Hiroshi Umeda, Kazuo Tamaki, Masanobu Okano, Yusuke Shibata, Manabu Onozaki, Atsushi Yamashita
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Patent number: 9804320Abstract: A light guide plate includes a plurality of LED light sources emitting light into two opposed side surfaces of the light guide plate, such that LED light sources having a length shorter than each of the opposed side surfaces at which the plurality of LED light sources are provided.Type: GrantFiled: June 5, 2013Date of Patent: October 31, 2017Assignee: SHARP KABUSHIKI KAISHAInventors: Masanobu Okano, Ken Sumitani
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Patent number: 9704834Abstract: A method for manufacturing a light-emitting device of the present invention includes a step in which solid-state sealing resin (17) containing a phosphor (18) and the solid-state sealing resin (17) containing a phosphor (19) are arranged in recesses in package resin (14) having LED chips placed thereon, are thereafter melted by heating, and, in addition, are cured by heating.Type: GrantFiled: April 15, 2014Date of Patent: July 11, 2017Assignee: Sharp Kabushiki KaishaInventors: Masahiro Konishi, Masayuki Itoh, Hiroshi Umeda, Kazuo Tamaki, Masanobu Okano
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Publication number: 20170162759Abstract: A light emitting device which emits a secondary light with high color purity and has a fast response speed is obtained. A KSF phosphor (15) which absorbs a part of blue light and emits red light and a CASN phosphor (16) are distributed in a resin (14) which seals an LED chip (13) which emits the blue light. The KSF phosphor (15) absorbs the blue light and emits the red light by forbidden transition, and the CASN phosphor (16) absorbs the blue light and emits the red light by allowed transition.Type: ApplicationFiled: February 16, 2017Publication date: June 8, 2017Inventors: Atsushi YAMASHITA, Masatsugu MASUDA, Toyonori UEMURA, Masanobu OKANO, Masayuki OHTA
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Patent number: 9614130Abstract: A light emitting device which emits a secondary light with high color purity and has a fast response speed is obtained. A KSF phosphor (15) which absorbs a part of blue light and emits red light and a CASN phosphor (16) are distributed in a resin (14) which seals an LED chip (13) which emits the blue light. The KSF phosphor (15) absorbs the blue light and emits the red light by forbidden transition, and the CASN phosphor (16) absorbs the blue light and emits the red light by allowed transition.Type: GrantFiled: October 7, 2014Date of Patent: April 4, 2017Assignee: Sharp Kabushiki KaishaInventors: Atsushi Yamashita, Masatsugu Masuda, Toyonori Uemura, Masanobu Okano, Masayuki Ohta
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Publication number: 20160276549Abstract: A light emitting device which emits a secondary light with high color purity and has a fast response speed is obtained. A KSF phosphor (15) which absorbs a part of blue light and emits red light and a CASN phosphor (16) are distributed in a resin (14) which seals an LED chip (13) which emits the blue light. The KSF phosphor (15) absorbs the blue light and emits the red light by forbidden transition, and the CASN phosphor (16) absorbs the blue light and emits the red light by allowed transition.Type: ApplicationFiled: October 7, 2014Publication date: September 22, 2016Inventors: Atsushi YAMASHITA, Masatsugu MASUDA, Toyonori UEMURA, Masanobu OKANO, Masayuki OHTA
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Publication number: 20160079211Abstract: A method for manufacturing a light-emitting device of the present invention includes a step in which solid-state sealing resin (17) containing a phosphor (18) and the solid-state sealing resin (17) containing a phosphor (19) are arranged in recesses in package resin (14) having LED chips placed thereon, are thereafter melted by heating, and, in addition, are cured by heating.Type: ApplicationFiled: April 15, 2014Publication date: March 17, 2016Inventors: Masahiro KONISHI, Masayuki ITOH, Hiroshi UMEDA, Kazuo TAMAKI, Masanobu OKANO
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Publication number: 20160062023Abstract: An illumination device (11) includes a light guide plate (15) and a light source unit (10) which includes a substrate (12) and a plurality of LED chips (16) disposed on the substrate (12), and which is disposed in a position at which emitted light of the LED chips (16) enters a light entrance portion (15a) of the light guide plate (15). The LED chips (16) are disposed to form a plurality of rows on the substrate (12), and are disposed to line up in a direction which orthogonally intersects the rows between each of the rows.Type: ApplicationFiled: April 10, 2014Publication date: March 3, 2016Inventors: Masayuki ITOH, Hiroshi UMEDA, Kazuo TAMAKI, Masanobu OKANO, Yusuke SHIBATA, Manabu ONOZAKI, Atsushi YAMASHITA
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Patent number: 9086589Abstract: Provided is a liquid crystal display device that can reduce costs while preventing moving image blurring. The device includes a liquid crystal panel and a backlight device. The backlight device includes a rectangular light guide plate 10 in plan view, and a light source unit emitting light toward a light incident surface corresponding to a side surface of the light guide plate. The light source unit is configured by a plurality of light source blocks arranged in a Y direction. The light guide plate 10 includes a groove structure 32 for taking out light upward on its front surface opposed to a back surface of the liquid crystal panel, and a dot pattern 31 for scattering light on its back surface. The groove structure 32 has a plurality of stripe-like grooves extending in an X direction, wherein a ridge extending in the X direction is formed at a portion sandwiched between the two adjacent grooves.Type: GrantFiled: April 18, 2011Date of Patent: July 21, 2015Assignee: SHARP KABUSHIKI KAISHAInventors: Mitsuru Hineno, Masanobu Okano
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Publication number: 20150138831Abstract: A surface light source device (10) includes: a light guide plate (120); and a plurality of LED light source substrates (140) each emitting light into the light guide plate (120) through a side surface of the light guide plate (120), the LED light source substrates (140) (i) being provided at a pair of sides of the light guide plate (120), the pair of sides facing each other and (ii) having a length shorter than a length of each of the pair of sides at which the plurality of LED light source substrates (140) are provided.Type: ApplicationFiled: June 5, 2013Publication date: May 21, 2015Applicant: SHARP KABUSHIKI KAISHAInventors: Masanobu Okano, Ken Sumitani
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Publication number: 20150070890Abstract: Provided is an light source board unit enabling improved freedom in the shape and material for a resin part, suppression of increased costs, and compatibility of optical characteristics and physical characteristics. This light source substrate unit (1) is provided with a plurality of LED chips (2) and a base material (10) having a plurality of recesses (10a) in which the LED chips are mounted. The base material includes a first resin part (11) fabricated by injecting a first resin and a second resin part (12) fabricated by injecting a second resin. The first resin part and the second resin part have mutually different optical characteristics, and at least a portion of the inner surface of the recesses is formed by the second resin part.Type: ApplicationFiled: April 10, 2013Publication date: March 12, 2015Applicant: SHARP KABUSHIKI KAISHAInventors: Masanobu Okano, Ken Sumitani
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Publication number: 20150009714Abstract: To provide a light source substrate in an edge-light-type light source module, with which a defect generated by contacting of a sealing member of the light source substrate coming into contact with a lightguide plate can be prevented and reliability and safety can be improved. A light source substrate has a plurality of light-emitting elements (LED elements 15) COB-mounted on a base member 11, and is used in an edge-light-type light source module. Light source substrates 30 to 90 are configured with a first protrusion that forms a dam 17 for housing the sealing member, and a second protrusion 18 that is formed higher than the first protrusion and prevents the sealing member from coming into contact with other members.Type: ApplicationFiled: January 22, 2013Publication date: January 8, 2015Applicant: SHARP KABUSHIKI KAISHAInventors: Masanobu Okano, Ken Sumitani, Shingo Kamitani
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Publication number: 20130148056Abstract: Provided is a liquid crystal display device that can reduce costs while preventing moving image blurring. The device includes a liquid crystal panel and a backlight device. The backlight device includes a rectangular light guide plate 10 in plan view, and a light source unit emitting light toward a light incident surface corresponding to a side surface of the light guide plate. The light source unit is configured by a plurality of light source blocks arranged in a Y direction. The light guide plate 10 includes a groove structure 32 for taking out light upward on its front surface opposed to a back surface of the liquid crystal panel, and a dot pattern 31 for scattering light on its back surface. The groove structure 32 has a plurality of stripe-like grooves extending in an X direction, wherein a ridge extending in the X direction is formed at a portion sandwiched between the two adjacent grooves.Type: ApplicationFiled: April 18, 2011Publication date: June 13, 2013Applicant: Sharp Kabushiki KaishaInventors: Mitsuru Hineno, Masanobu Okano
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Patent number: 8303155Abstract: A light guide plate has a main-side microprism array sheet (main-side MPA sheet) 3 adhered to the top face 2a thereof, and a sub-side microprism array sheet (sub-side MPA sheet) 4 adhered to the bottom face 2b thereof. A prism formation region of the sub-side MPA sheet 4 is smaller than that of the main-side MPA sheet 3. Prisms in the prism formation region of the main-side MPA sheet 3 are, in an arrangement where the density of prisms arranged increases with distance from a light source 5, so arranged that the density of prisms arranged increases in a region that faces the prism formation region of the sub-side MPA sheet 4.Type: GrantFiled: October 15, 2008Date of Patent: November 6, 2012Assignee: Sharp Kabushiki KaishaInventors: Hiroaki Shigeta, Masanobu Okano
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Patent number: 8136954Abstract: A small-size and light-weight backlight system and a planar display device has a structure such that luminance unevenness and chromaticity unevenness in the vicinity of the incident light portion of a light guide plate are not noticeable. The back light system includes a light guide plate arranged to guide the light from a light source and emit the light in a planar direction. The light source includes a linear light source body arranged in the vicinity of the side edge of the light guide plate. The linear light source body includes a linear body in which a plurality of light emitting elements are embedded in the longitudinal direction. A light direction change sheet is arranged on the light emission surface of the light guide plate. The light direction change sheet has a plurality of protruding stripes arranged substantially parallel to the longitudinal direction of the linear light source body formed on the surface opposing to the light guide plate.Type: GrantFiled: March 17, 2006Date of Patent: March 20, 2012Assignee: Sharp Kabushiki KaishaInventors: Masanobu Okano, Yoshitake Nakamura
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Patent number: 8047697Abstract: The light from a light source (4) using an LED enters a light entrance surface (2c) of a light guide plate (2) which is integrated with an microprism array sheet (3). A diffusion film (7) for diffusing light is bonded to a top surface (2b) of the light guide plate (2) in a region near the light source (4).Type: GrantFiled: September 8, 2008Date of Patent: November 1, 2011Assignee: Sharp Kabushiki KaishaInventors: Hiroaki Shigeta, Masanobu Okano
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Publication number: 20110007520Abstract: The light from a light source (4) using an LED enters a light entrance surface (2c) of a light guide plate (2) which is integrated with an microprism array sheet (3). A diffusion film (7) for diffusing light is bonded to a top surface (2b) of the light guide plate (2) in a region near the light source (4).Type: ApplicationFiled: September 8, 2008Publication date: January 13, 2011Inventors: Hiroaki Shigeta, Masanobu Okano