Patents by Inventor Makoto Agatani
Makoto Agatani 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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Publication number: 20200003943Abstract: [Object] To provide a light emitting device including individually controllable light source units, and a display device including the light emitting device. [Solution] A light emitting device (15) is a light emitting device used in a display device including a display area, and includes a plurality of light source units (40) each including a light source portion (20) including laser diodes that emit three or more types of laser beams having wavelengths different from each other, and a light guide portion (30) that guides the laser beams. The plurality of light source units (40) are two-dimensionally arranged in the display area.Type: ApplicationFiled: June 18, 2019Publication date: January 2, 2020Inventors: HIROSHI KITAMURA, MAKOTO AGATANI, HIDEKAZU FUJII
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Publication number: 20190265550Abstract: A light-emitting device is provided with: at least one laser light source provided with a plurality of laser diodes that emit laser light having mutually different wavelengths; and a diffraction grating arranged at the laser light emission side of the laser light source, in which the diffraction grating is configured so that at least some of the laser light is synthesized directly within a plane separated by a predetermined distance from the diffraction grating.Type: ApplicationFiled: February 12, 2019Publication date: August 29, 2019Inventors: HIROSHI KITAMURA, HIDEKAZU FUJII, MAKOTO AGATANI
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Patent number: 10260727Abstract: A light-emitting device (100) is provided with: a light-emitting module (1) in which a light-emitting section (30) is provided on a ceramic substrate (11); a heat sink (2); a holder (4) having a ceramic plate (50) for attaching the light-emitting module (1) to the heat sink (2); and a heat-dissipating sheet (3) provided between the ceramic substrate (11) and the heat sink (2).Type: GrantFiled: June 9, 2014Date of Patent: April 16, 2019Assignee: SHARP KABUSHIKI KAISHAInventors: Makoto Matsuda, Makoto Agatani
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Publication number: 20190101679Abstract: A light emitting device includes a first light source unit and a second light source unit that emit three or more types of laser light beams having wavelengths different from each other, a light guide portion in which the laser light beams emitted from both the first light source unit and the second light source unit are guided, and a first heat sink and a second heat sink that respectively hold the first light source unit and the second light source unit at predetermined positions, and dissipate heat generated from the first light source unit and the second light source unit.Type: ApplicationFiled: October 3, 2018Publication date: April 4, 2019Inventors: HIROSHI KITAMURA, HIDEKAZU FUJII, KENICHI MURAKOSHI, MAKOTO AGATANI
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Patent number: 10224469Abstract: A light emitting device (10) includes light emitting elements (12), conductor wirings (14), and alignment marks (18) formed on a substrate (11). The alignment marks (18) and the conductor wirings (14) are formed by printing.Type: GrantFiled: September 21, 2016Date of Patent: March 5, 2019Assignee: SHARP KABUSHIKI KAISHAInventors: Toshio Hata, Makoto Agatani, Shinya Ishizaki, Makoto Matsuda, Tomokazu Nada, Toyonori Uemura
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Light emitting device, LED light bulb, spot lighting device, lighting device, and lighting equipment
Patent number: 10088123Abstract: The light-emitting device includes a substrate and a plurality of light-emitting sections. A first light-emitting section is made up of LED chips and a first fluorescent-substance-containing resin layer, and a second light-emitting section is made up of LED chips and a second fluorescent-substance-containing resin layer. The first fluorescent-substance-containing resin layer and the second fluorescent-substance-containing resin layer are provided in a plurality of locations such that the fluorescent-substance-containing resin layers for the different light-emitting sections are adjacently arranged.Type: GrantFiled: March 7, 2017Date of Patent: October 2, 2018Assignee: Sharp Kabushiki KaishaInventors: Toshio Hata, Makoto Agatani, Toyonori Uemura, Shinya Ishizaki, Hitoshi Matsushita -
Patent number: 9966367Abstract: A light emitting device includes: a ceramic substrate; a plurality of LED chips; a printed resistor(s) connected in parallel with the plurality of LED chips; a dam resin made of a resin having a low optical transmittance; a fluorescent-material-containing resin layer; and an anode-side electrode and a cathode-side electrode, (a) which are provided on a primary surface of the ceramic substrate so as to face each other along a first direction on the primary surface and (b) which are disposed below at least one of the dam resin and the fluorescent-material-containing resin layer. With the configuration in which a plurality of LEDs, which are connected in a series-parallel connection, are provided on a substrate, it is possible to provide a light emitting device which can achieve restraining of luminance unevenness and an improvement in luminous efficiency.Type: GrantFiled: May 5, 2017Date of Patent: May 8, 2018Assignee: Sharp Kabushiki KaishaInventors: Shinya Ishizaki, Makoto Agatani, Tomokazu Nada, Toshio Hata
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Patent number: 9966504Abstract: By using a light emitting device including an insulating substrate and a light emitting unit formed on the insulating substrate, the light emitting unit including: a plurality of linear wiring patterns disposed on the insulating substrate in parallel with one another, a plurality of light emitting elements that are mounted between the wiring patterns while being electrically connected to the wiring patterns, and a sealing member for sealing the light emitting elements, as well as a method for manufacturing thereof, it becomes possible to provide a light emitting device that achieves sufficient electrical insulation and has simple manufacturing processes so that it can be manufactured at a low cost, and a method for manufacturing the same.Type: GrantFiled: July 17, 2017Date of Patent: May 8, 2018Assignee: Sharp Kabushiki KaishaInventors: Masahiro Konishi, Makoto Agatani, Toshio Hata
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Publication number: 20170317244Abstract: By using a light emitting device including an insulating substrate and a light emitting unit formed on the insulating substrate, the light emitting unit including: a plurality of linear wiring patterns disposed on the insulating substrate in parallel with one another, a plurality of light emitting elements that are mounted between the wiring patterns while being electrically connected to the wiring patterns, and a sealing member for sealing the light emitting elements, as well as a method for manufacturing thereof, it becomes possible to provide a light emitting device that achieves sufficient electrical insulation and has simple manufacturing processes so that it can be manufactured at a low cost, and a method for manufacturing the same.Type: ApplicationFiled: July 17, 2017Publication date: November 2, 2017Applicant: Sharp Kabushiki KaishaInventors: Masahiro KONISHI, Makoto AGATANI, Toshio HATA
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Patent number: 9755115Abstract: By using a light emitting device including an insulating substrate and a light emitting unit formed on the insulating substrate, the light emitting unit including: a plurality of linear wiring patterns disposed on the insulating substrate in parallel with one another, a plurality of light emitting elements that are mounted between the wiring patterns while being electrically connected to the wiring patterns, and a sealing member for sealing the light emitting elements, as well as a method for manufacturing thereof, it becomes possible to provide a light emitting device that achieves sufficient electrical insulation and has simple manufacturing processes so that it can be manufactured at a low cost, and a method for manufacturing the same.Type: GrantFiled: February 4, 2016Date of Patent: September 5, 2017Assignee: SHARP KABUSHIKI KAISHAInventors: Masahiro Konishi, Makoto Agatani, Toshio Hata
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Publication number: 20170243859Abstract: A light emitting device includes: a ceramic substrate; a plurality of LED chips; a printed resistor(s) connected in parallel with the plurality of LED chips; a dam resin made of a resin having a low optical transmittance; a fluorescent-material-containing resin layer; and an anode-side electrode and a cathode-side electrode, (a) which are provided on a primary surface of the ceramic substrate so as to face each other along a first direction on the primary surface and (b) which are disposed below at least one of the dam resin and the fluorescent-material-containing resin layer. With the configuration in which a plurality of LEDs, which are connected in a series-parallel connection, are provided on a substrate, it is possible to provide a light emitting device which can achieve restraining of luminance unevenness and an improvement in luminous efficiency.Type: ApplicationFiled: May 5, 2017Publication date: August 24, 2017Inventors: Shinya ISHIZAKI, Makoto AGATANI, Tomokazu NADA, Toshio HATA
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Patent number: 9732935Abstract: A light source device is obtained, which has an enhanced light distribution characteristic with sufficiently homogeneous diffused light and can be readily manufactured with a simple configuration. The light source device has a substrate 2, a board-like first reflector 3 erected vertically to traverse a center section on the substrate 2 while both side surfaces face outward, and a plurality of LED chips 4 positioned on the substrate 2 as a plurality of light emitting elements so as to surround the first reflector 3. At least both side surfaces of the first reflector 3 have a light reflecting function. Thereby, a light source device is obtained, which has an enhanced light distribution characteristic with sufficiently homogeneous diffused light and can be readily manufactured with a simple configuration.Type: GrantFiled: April 26, 2013Date of Patent: August 15, 2017Assignee: Sharp Kabushiki KaishaInventors: Toshio Hata, Makoto Agatani, Tomokazu Nada
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Patent number: 9735133Abstract: A light-emitting device capable of ensuring an electric connection between a light-emitting element and an electrode without generating any problem in practical use, by both connecting methods with a solder and a connector, and a lighting device provided with the light-emitting device are provided. The light-emitting device according to the present invention has a plurality of LED chips, and a soldering electrode land and a connector connecting electrode land electrically connected to the chips, on a ceramic substrate. The soldering electrode land is formed of a first conductive material having a function to prevent diffusion to a solder, and the connector connecting electrode land is formed of a second conductive material having a function to prevent oxidation.Type: GrantFiled: October 11, 2016Date of Patent: August 15, 2017Assignee: SHARP KABUSHIKI KAISHAInventors: Makoto Agatani, Toshio Hata, Tomokazu Nada, Shinya Ishizaki
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LIGHT EMITTING DEVICE, LED LIGHT BULB, SPOT LIGHTING DEVICE, LIGHTING DEVICE, AND LIGHTING EQUIPMENT
Publication number: 20170175972Abstract: The light-emitting device includes a substrate and a plurality of light-emitting sections. A first light-emitting section is made up of LED chips and a first fluorescent-substance-containing resin layer, and a second light-emitting section is made up of LED chips and a second fluorescent-substance-containing resin layer. The first fluorescent-substance-containing resin layer and the second fluorescent-substance-containing resin layer are provided in a plurality of locations such that the fluorescent-substance-containing resin layers for the different light-emitting sections are adjacently arranged.Type: ApplicationFiled: March 7, 2017Publication date: June 22, 2017Inventors: Toshio HATA, Makoto AGATANI, Toyonori UEMURA, Shinya ISHIZAKI, Hitoshi MATSUSHITA -
Patent number: 9679942Abstract: A light emitting device includes: a ceramic substrate; a plurality of LED chips; a printed resistor(s) connected in parallel with the plurality of LED chips; a dam resin made of a resin having a low optical transmittance; a fluorescent-material-containing resin layer; and an anode-side electrode and a cathode-side electrode, (a) which are provided on a primary surface of the ceramic substrate so as to face each other along a first direction on the primary surface and (b) which are disposed below at least one of the dam resin and the fluorescent-material-containing resin layer. With the configuration in which a plurality of LEDs, which are connected in a series-parallel connection, are provided on a substrate, it is possible to provide a light emitting device which can achieve restraining of luminance unevenness and an improvement in luminous efficiency.Type: GrantFiled: June 21, 2016Date of Patent: June 13, 2017Assignee: Sharp Kabushiki KaishaInventors: Shinya Ishizaki, Makoto Agatani, Tomokazu Nada, Toshio Hata
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Patent number: 9666769Abstract: A substrate-type LED light source (10) includes: at least one blue LED chip (2) which has an emission peak in a range from 400 nm to 480 nm so as to correspond to a blue light region absorption peak of chlorophyll; a red phosphor (7b) which emit, upon receiving excitation light from the at least one blue LED chip (2), light having a peak wavelength in a range from 620 nm to 700 nm so as to correspond to a red light region absorption peak of chlorophyll; and a resin layer (7) in which the red phosphor 7b is dispersed and which covers the at least one blue LED chip (2).Type: GrantFiled: November 15, 2011Date of Patent: May 30, 2017Assignee: Sharp Kabushiki KaishaInventors: Shinji Osaki, Toyonori Uemura, Toshio Hata, Tomokazu Nada, Tatsuya Morioka, Makoto Matsuda, Shinya Ishizaki, Makoto Agatani, Hitoshi Matsushita
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Patent number: 9611985Abstract: The light-emitting device (100) includes a substrate (101) and a plurality of light-emitting sections. A first light-emitting section is made up of LED chips (102) and a first fluorescent-substance-containing resin layer (107), and a second light-emitting section is made up of LED chips (102) and a second fluorescent-substance-containing resin layer (108). The first fluorescent-substance-containing resin layer (107) and the second fluorescent-substance-containing resin layer (108) are provided in a plurality of locations such that the fluorescent-substance-containing resin layers for the different light-emitting sections are adjacently arranged.Type: GrantFiled: March 22, 2012Date of Patent: April 4, 2017Assignee: Sharp Kabushiki KaishaInventors: Toshio Hata, Makoto Agatani, Toyonori Uemura, Shinya Ishizaki, Hitoshi Matsushita
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Patent number: 9607970Abstract: The light-emitting device of the present invention includes LED chips provided on a ceramic substrate and a sealing material in which the LED chips are embedded. The sealing material contains a fluorescent substance and divided into a first fluorescent-substance-containing resin layer and a second fluorescent-substance-containing resin layer by a first resin ring and a second resin ring.Type: GrantFiled: December 2, 2015Date of Patent: March 28, 2017Assignee: SHARP KABUSHIKI KAISHAInventors: Makoto Agatani, Toshio Hata, Toyonori Uemura
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Patent number: 9577153Abstract: A light emission device includes: an insulating substrate; a light emitting section including a plurality of LED chips mounted on the insulating substrate; and land electrodes for supplying power to the LED chips. At least a surface of each of the land electrodes is made of a conductive material which is harder than Au and Ag and which has sulfurization resistance to such an extent that secures conduction of each land electrode when a current in a working current range is applied on the land electrode.Type: GrantFiled: February 19, 2013Date of Patent: February 21, 2017Assignee: Sharp Kabushiki KaishaInventors: Makoto Agatani, Makoto Matsuda
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Publication number: 20170033089Abstract: A light-emitting device capable of ensuring an electric connection between a light-emitting element and an electrode without generating any problem in practical use, by both connecting methods with a solder and a connector, and a lighting device provided with the light-emitting device are provided. The light-emitting device according to the present invention has a plurality of LED chips, and a soldering electrode land and a connector connecting electrode land electrically connected to the chips, on a ceramic substrate. The soldering electrode land is formed of a first conductive material having a function to prevent diffusion to a solder, and the connector connecting electrode land is formed of a second conductive material having a function to prevent oxidation.Type: ApplicationFiled: October 11, 2016Publication date: February 2, 2017Inventors: Makoto AGATANI, Toshio HATA, Tomokazu NADA, Shinya ISHIZAKI