Patents by Inventor Daisuke Sakumoto
Daisuke Sakumoto 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: 8384119Abstract: A light emitting device includes a light emitting element, a base, and a transparent layer. The base has an upper side portion including a first portion and a second portion. The first portion includes a mounting region of the light emitting element, and has a first porosity. The second portion surrounds the first portion, includes a plurality of transparent particles, and has a second porosity larger than the first porosity. The light transmitting layer encapsulates the light emitting element, and is attached to the first portion in a state where the transparent layer is apart from the second portion.Type: GrantFiled: December 25, 2008Date of Patent: February 26, 2013Assignee: Kyocera CorporationInventors: Shingo Matsuura, Daisuke Sakumoto
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Publication number: 20120138998Abstract: A light-emitting device (1) includes a substrate, a light-emitting element mounted on the substrate, a frame disposed on the substrate so as to surround the light-emitting element, and a wavelength converter supported on the frame so as to be opposed at an interval from the light-emitting element. In the light-emitting device, the wavelength converter has a thickness becoming smaller from an edge toward a center of the wavelength converter.Type: ApplicationFiled: August 27, 2010Publication date: June 7, 2012Applicant: KYOCERA CORPORATIONInventors: Hiroki ITOU, Daisuke SAKUMOTO
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Publication number: 20120025221Abstract: Provided is a light emitting device having a light emitting element such as a light emitting diode. The light emitting device includes a plurality of light sources each including a light emitting element, a first light reflective member which surrounds the plurality of light sources, and a second light reflective member disposed ahead of the first light reflective member in a light radiation direction of the plurality of light sources with reference to the plurality of light sources. The second light reflective member includes a light transmitting material.Type: ApplicationFiled: March 31, 2010Publication date: February 2, 2012Applicant: KYOCERA CORPORATIONInventor: Daisuke Sakumoto
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Patent number: 8106584Abstract: A light emitting device includes a base on which a wiring conductor is formed from the top surface to the bottom surface or the side face; a light emitting chip mounted on the top surface of the base and electrically connected with the wiring conductor; a first light transmitting member which covers the light emitting chip; a second light transmitting member provided above the first light transmitting member to cover the first light transmitting member, the second light transmitting member being formed of a light transmitting material containing fluorescent materials for converting in wavelength the light emitted from the light emitting chip; and a third light transmitting member provided between the first and second light transmitting members, wherein the refractive index n1 of the first light transmitting member, the refractive index n2 of the second light transmitting member and the refractive index n3 of the third light transmitting member satisfy the relation: n3<n1 and n3<n2, thereby achieving higType: GrantFiled: July 27, 2005Date of Patent: January 31, 2012Assignee: Kyocera CorporationInventors: Tomoya Tabuchi, Akira Miyake, Daisuke Sakumoto
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Patent number: 8029152Abstract: A package includes a base body having a mounting portion for mounting a light-emitting device, a frame-shaped first reflection member attached to the upper surface of the base body, an inner peripheral surface of which is shaped into a first light reflecting surface and surrounds the mounting portion, and a frame-shaped second reflection member attached to the upper surface of the base body, with a spacing secured between an inner peripheral surface of the second reflection member and an outer peripheral surface of the first reflection member, the inner peripheral surface surrounding the first reflection member and having a second light reflecting surface at a location above an upper end of the first reflection member.Type: GrantFiled: March 23, 2006Date of Patent: October 4, 2011Assignee: Kyocera CorporationInventors: Fumiaki Sekine, Daisuke Sakumoto, Yuki Mori, Mitsuo Yanagisawa, Shingo Matsuura
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Patent number: 7994528Abstract: A light-emitting chip includes a base, a transparent material layer and a light-emitting chip. The base has an upper surface including a conductive pattern. The transparent material layer is disposed on the upper surface of the base and has an opening part which is located on region at least part of the conductive pattern. The light-emitting chip is mounted on the conductive pattern and located in the opening part of the transparent material layer.Type: GrantFiled: March 27, 2008Date of Patent: August 9, 2011Assignee: KYOCERA CorporationInventors: Shingo Matsuura, Mitsuo Yanagisawa, Daisuke Sakumoto
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Publication number: 20110084295Abstract: A light emitting device includes a light emitting element, a base, and a transparent layer. The base has an upper side portion including a first portion and a second portion. The first portion includes a mounting region of the light emitting element, and has a first porosity. The second portion surrounds the first portion, includes a plurality of transparent particles, and has a second porosity larger than the first porosity. The light transmitting layer encapsulates the light emitting element, and is attached to the first portion in a state where the transparent layer is apart from the second portion.Type: ApplicationFiled: December 25, 2008Publication date: April 14, 2011Applicant: KYOCERA CORPORATIONInventors: Shingo Matsuura, Daisuke Sakumoto
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Publication number: 20090295265Abstract: A light emitting device includes a base on which a wiring conductor is formed from the top surface to the bottom surface or the side face; a light emitting chip mounted on the top surface of the base and electrically connected with the wiring conductor; a first light transmitting member which covers the light emitting chip; a second light transmitting member provided above the first light transmitting member to cover the first light transmitting member, the second light transmitting member being formed of a light transmitting material containing fluorescent materials for converting in wavelength the light emitted from the light emitting chip; and a third light transmitting member provided between the first and second light transmitting members, wherein the refractive index n1 of the first light transmitting member, the refractive index n2 of the second light transmitting member and the refractive index n3 of the third light transmitting member satisfy the relation: n3<n1 and n3<n2, thereby achieving higType: ApplicationFiled: July 27, 2005Publication date: December 3, 2009Applicant: KYOCERA CORPORATIONInventors: Tomoya Tabuchi, Akira Miyake, Daisuke Sakumoto
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Publication number: 20090296367Abstract: A package includes a base body having a mounting portion for mounting a light-emitting device, a frame-shaped first reflection member attached to the upper surface of the base body, an inner peripheral surface of which is shaped into a first light reflecting surface and surrounds the mounting portion, and a frame-shaped second reflection member attached to the upper surface of the base body, with a spacing secured between an inner peripheral surface of the second reflection member and an outer peripheral surface of the first reflection member, the inner peripheral surface surrounding the first reflection member and having a second light reflecting surface at a location above an upper end of the first reflection member.Type: ApplicationFiled: March 23, 2006Publication date: December 3, 2009Applicant: KYOCERA CORPORATIONInventors: Fumiaki Sekine, Daisuke Sakumoto, Yuki Mori, Mitsuo Yanagisawa, Shingo Matsuura
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Publication number: 20090152580Abstract: A light-emitting chip includes a base, a transparent material layer and a light-emitting chip. The base has an upper surface including a conductive pattern. The transparent material layer is disposed on the upper surface of the base and has an opening part which is located on region at least part of the conductive pattern. The light-emitting chip is mounted on the conductive pattern and located in the opening part of the transparent material layer.Type: ApplicationFiled: March 27, 2008Publication date: June 18, 2009Applicant: KYOCERA CorporationInventors: Shingo Matsuura, Mitsuo Yanagisawa, Daisuke Sakumoto
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Patent number: 7503676Abstract: A light-emitting device has a base, a light-emitting chip and a light emitter. The light-emitting chip is made of semiconductor material, and is mounted on the base. The light-emitting chip generates the primary light. The light emitter includes fluorescent material being excited by the primary light to emit a secondary light. The light emitter has a first surface with uneven surface texture.Type: GrantFiled: July 26, 2007Date of Patent: March 17, 2009Assignee: KYOCERA CorporationInventor: Daisuke Sakumoto
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Patent number: 7491000Abstract: A base structure for a light emitting device includes a supporting device for supporting a light emitting element, a connection device for being electrically connected to the light emitting element, and a filler member. The supporting device includes a metallic material. The connection device surrounds the supporting device and includes a metallic material. The filler member fills a gap separating the supporting device from the connection device.Type: GrantFiled: April 27, 2006Date of Patent: February 17, 2009Assignee: Kyocera CorporationInventors: Nobuyuki Takehashi, Mitsugu Uraya, Masakazu Yasui, Kousuke Katabe, Yuuki Mori, Daisuke Sakumoto
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Publication number: 20080049430Abstract: A light-emitting device has a base, a light-emitting chip and a light emitter. The light-emitting chip is made of semiconductor material, and is mounted on the base. The light-emitting chip generates the primary light. The light emitter includes fluorescent material being excited by the primary light to emit a secondary light. The light emitter has a first surface with uneven surface texture.Type: ApplicationFiled: July 26, 2007Publication date: February 28, 2008Applicant: KYOCERA CorporationInventor: Daisuke Sakumoto
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Publication number: 20060261360Abstract: A base structure for a light emitting device includes a supporting device for supporting a light emitting element, a connection device for being electrically connected to the light emitting element, and a filler member. The supporting device includes a metallic material. The connection device surrounds the supporting device and includes a metallic material. The filler member fills a gap separating the supporting device from the connection device.Type: ApplicationFiled: April 27, 2006Publication date: November 23, 2006Applicant: KYOCERA CORPORATIONInventors: Nobuyuki Takehashi, Mitsugu Uraya, Masakazu Yasui, Kousuke Katabe, Yuuki Mori, Daisuke Sakumoto
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Publication number: 20050133808Abstract: A light-emitting apparatus provides a ceramic-made base body, a frame body, a light-emitting element, a conductor layer and a light-transmitting member. The base body has on its upper surface a mounting portion for the light-emitting element. The frame body is joined to the upper surface of the base body so as to surround the mounting portion, with its inner peripheral surface shaped into a reflection surface. The wiring conductor has its one end formed on the upper surface of the base body and electrically connected to the light-emitting element, and has another end led to a side or lower surface of the base body. The light-transmitting member is disposed inside the frame body so as to cover the light-emitting element, which contains fluorescent materials for performing wavelength conversion. The base body is so designed that ceramic crystal grains range in average particle diameter from 1 to 5 ?m.Type: ApplicationFiled: October 29, 2004Publication date: June 23, 2005Inventors: Mitsugu Uraya, Daisuke Sakumoto, Akira Miyake, Fumiaki Sekine, Yuki Mori, Mitsuo Yanagisawa, Hiroshi Shibayama, Shingo Matsuura