Patents by Inventor Kensho Sakano
Kensho Sakano 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: 9130130Abstract: A light emitting device containing a semiconductor light emitting component and a phosphor, the phosphor is capable of absorbing a part of light emitted by the light emitting component and emitting light of a wavelength different from that of the absorbed light, is provided. A straight line connecting a point of chromaticity corresponding to a spectrum generated by the light emitting component and a point of chromaticity corresponding to a spectrum generated by the phosphor is substantially along a black body radiation locus in a chromaticity diagram.Type: GrantFiled: November 26, 2013Date of Patent: September 8, 2015Assignee: NICHIA CORPORATIONInventors: Yoshinori Shimizu, Kensho Sakano, Yasunobu Noguchi, Toshio Moriguchi
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Patent number: 8754428Abstract: A light emitting diode having a mount lead having a cup and a lead, an LED chip mounted in the cup of said mount lead with one of electrodes being electrically connected to said mount lead, a coating material filling the cup of said mount lead to cover said LED chip; a molding material covering said LED chip, said coating material and the cup of said mount lead, and a phosphor absorbing a part of light emitted by said LED chip and emitting light of wavelength different from that of the absorbed light, wherein said phosphor is located in said coating material, and wherein said molding material is shaped to form a concave lens.Type: GrantFiled: October 7, 2009Date of Patent: June 17, 2014Assignee: Nichia CorporationInventors: Yoshinori Shimizu, Kensho Sakano, Yasunobu Noguchi, Toshio Moriguchi
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Patent number: 8685762Abstract: A light emitting device comprises: an LED chip having a quantum well structure and a light emitting layer made of a gallium nitride compound semiconductor; a first transparent material covering the LED chip; a second transparent material for protecting the LED chip and the first transparent material; and a phosphor for absorbing a part of the light from the LED chip and emitting a light having a wavelength different from the light from the LED chip; wherein the phosphor is included in second transparent material, and the light from the LED chip and the light from said phosphor are mixed to make a white light.Type: GrantFiled: August 15, 2011Date of Patent: April 1, 2014Assignee: Nichia CorporationInventors: Yoshinori Shimizu, Kensho Sakano, Yasunobu Noguchi, Toshio Moriguchi
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Publication number: 20140084323Abstract: A light emitting device containing a semiconductor light emitting component and a phosphor, the phosphor is capable of absorbing a part of light emitted by the light emitting component and emitting light of a wavelength different from that of the absorbed light, is provided. A straight line connecting a point of chromaticity corresponding to a spectrum generated by the light emitting component and a point of chromaticity corresponding to a spectrum generated by the phosphor is substantially along a black body radiation locus in a chromaticity diagram.Type: ApplicationFiled: November 26, 2013Publication date: March 27, 2014Applicant: NICHIA CorporationInventors: Yoshinori SHIMIZU, Kensho SAKANO, Yasunobu NOGUCHI, Toshio MORIGUCHI
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Patent number: 8679866Abstract: A light emitting device comprises: an LED chip having a quantum well structure and a light emitting layer made of a gallium nitride compound semiconductor; a first transparent material covering the LED chip; a second transparent material for protecting the LED chip and the first transparent material; and a phosphor for absorbing a part of the light from the LED chip and emitting a light having a wavelength different from the light from the LED chip; wherein the phosphor is included in second transparent material, and the light from the LED chip and the light from said phosphor are mixed to make a white light.Type: GrantFiled: November 16, 2010Date of Patent: March 25, 2014Assignee: Nichia CorporationInventors: Yoshinori Shimizu, Kensho Sakano, Yasunobu Noguchi, Toshio Moriguchi
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Patent number: 8610147Abstract: A light emitting device containing a semiconductor light emitting component and a phosphor, the phosphor is capable of absorbing a part of light emitted by the light emitting component and emitting light of a wavelength different from that of the absorbed light, is provided. A straight line connecting a point of chromaticity corresponding to a spectrum generated by the light emitting component and a point of chromaticity corresponding to a spectrum generated by the phosphor is substantially along a black body radiation locus in a chromaticity diagram.Type: GrantFiled: September 14, 2009Date of Patent: December 17, 2013Assignee: Nichia CorporationInventors: Yoshinori Shimizu, Kensho Sakano, Yasunobu Noguchi, Toshio Moriguchi
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Patent number: 8309375Abstract: A method for manufacturing a light emitting device comprises: preparing a light emitting component having an active layer of a semiconductor, the active layer comprising a gallium nitride based semiconductor containing indium and being capable of emitting a blue color light; preparing a phosphor capable of absorbing a part of the blue color light emitted from the light emitting component and emitting a yellow color light, wherein selection of the phosphor is controlled based on an emission wavelength of the light emitting component; and combining the light emitting component and the phosphor so that the blue color light from the light emitting component and the yellow color light from the phosphor are mixed to make a white color light.Type: GrantFiled: November 9, 2010Date of Patent: November 13, 2012Assignee: Nichia CorporationInventors: Yoshinori Shimizu, Kensho Sakano, Yasunobu Noguchi, Toshio Moriguchi
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Patent number: 8148177Abstract: A light emitting device containing a semiconductor light emitting component and a phosphor, the phosphor is capable of absorbing a part of light emitted by the light emitting component and emitting light of a wavelength different from that of the absorbed light, is provided. A straight line connecting a point of chromaticity corresponding to a spectrum generated by the light emitting component and a point of chromaticity corresponding to a spectrum generated by the phosphor is substantially along a black body radiation locus in a chromaticity diagram.Type: GrantFiled: August 27, 2009Date of Patent: April 3, 2012Assignee: Nichia CorporationInventors: Yoshinori Shimizu, Kensho Sakano, Yasunobu Noguchi, Toshio Moriguchi
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Publication number: 20110297990Abstract: A light emitting device comprises: an LED chip having a quantum well structure and a light emitting layer made of a gallium nitride compound semiconductor; a first transparent material covering the LED chip; a second transparent material for protecting the LED chip and the first transparent material; and a phosphor for absorbing a part of the light from the LED chip and emitting a light having a wavelength different from the light from the LED chip; wherein the phosphor is included in second transparent material, and the light from the LED chip and the light from said phosphor are mixed to make a white light.Type: ApplicationFiled: August 15, 2011Publication date: December 8, 2011Inventors: Yoshinori Shimizu, Kensho Sakano, Yasunobu Noguchi, Toshio Moriguchi
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Patent number: 7968866Abstract: A light emitting diode comprising a lead, an LED chip mounted on said lead, said LED chip having a substrate and semiconductor layers formed on said substrate, a transparent material covering said LED chip, and a phosphor contained in said transparent material and absorbing a part of light emitted by said LED chip and emitting light of wavelength different from that of the absorbed light, wherein the main emission peak of said LED chip is within the range from 400 nm to 530 nm, and said LED chip is mounted on said lead with substrate-side up and is electrically connected with said lead by a metallic bump.Type: GrantFiled: October 7, 2009Date of Patent: June 28, 2011Assignee: Nichia CorporationInventors: Yoshinori Shimizu, Kensho Sakano, Yasunobu Noguchi, Toshio Moriguchi
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Patent number: 7969090Abstract: A light emitting device containing a semiconductor light emitting component and a phosphor, the phosphor is capable of absorbing a part of light emitted by the light emitting component and emitting light of a wavelength different from that of the absorbed light, is provided. A straight line connecting a point of chromaticity corresponding to a spectrum generated by the light emitting component and a point of chromaticity corresponding to a spectrum generated by the phosphor is substantially along a black body radiation locus in a chromaticity diagram.Type: GrantFiled: August 27, 2009Date of Patent: June 28, 2011Assignee: Nichia CorporationInventors: Yoshinori Shimizu, Kensho Sakano, Yasunobu Noguchi, Toshio Moriguchi
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Patent number: 7943941Abstract: A device for emitting various colors by mixing light from a first light emitting diode and light from a second light emitting diode comprises, according to one embodiment: the first light emitting diode including an LED chip comprising InGaN and being capable of emitting a blue color light, and a phosphor capable of absorbing a part of the blue color light and emitting a yellow color light, the blue color light and the yellow color light being mixed to make white-color light; the second light emitting diode being capable of emitting red, green or blue color light; and a drive circuit for separately driving each of the first and second light emitting diode.Type: GrantFiled: July 7, 2010Date of Patent: May 17, 2011Assignee: Nichia CorporationInventors: Yoshinori Shimizu, Kensho Sakano, Yasunobu Noguchi, Toshio Moriguchi
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Patent number: 7915631Abstract: A light emitting device containing a semiconductor light emitting component and a phosphor, the phosphor is capable of absorbing a part of light emitted by the light emitting component and emitting light of a wavelength different from that of the absorbed light, is provided. A straight line connecting a point of chromaticity corresponding to a spectrum generated by the light emitting component and a point of chromaticity corresponding to a spectrum generated by the phosphor is substantially along a black body radiation locus in a chromaticity diagram.Type: GrantFiled: August 27, 2009Date of Patent: March 29, 2011Assignee: Nichia CorporationInventors: Yoshinori Shimizu, Kensho Sakano, Yasunobu Noguchi, Toshio Moriguchi
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Publication number: 20110062864Abstract: A light emitting device comprises: an LED chip having a quantum well structure and a light emitting layer made of a gallium nitride compound semiconductor; a first transparent material covering the LED chip; a second transparent material for protecting the LED chip and the first transparent material; and a phosphor for absorbing a part of the light from the LED chip and emitting a light having a wavelength different from the light from the LED chip; wherein the phosphor is included in second transparent material, and the light from the LED chip and the light from said phosphor are mixed to make a white light.Type: ApplicationFiled: November 16, 2010Publication date: March 17, 2011Inventors: Yoshinori SHIMIZU, Kensho Sakano, Yasunobu Noguchi, Toshio Moriguchi
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Patent number: 7901959Abstract: A light emitting device containing a semiconductor light emitting component and a phosphor, the phosphor is capable of absorbing a part of light emitted by the light emitting component and emitting light of a wavelength different from that of the absorbed light, is provided. A straight line connecting a point of chromaticity corresponding to a spectrum generated by the light emitting component and a point of chromaticity corresponding to a spectrum generated by the phosphor is substantially along a black body radiation locus in a chromaticity diagram.Type: GrantFiled: August 27, 2009Date of Patent: March 8, 2011Assignee: Nichia CorporationInventors: Yoshinori Shimizu, Kensho Sakano, Yasunobu Noguchi, Toshio Moriguchi
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Publication number: 20110053299Abstract: A method for manufacturing a light emitting device comprises: preparing a light emitting component having an active layer of a semiconductor, the active layer comprising a gallium nitride based semiconductor containing indium and being capable of emitting a blue color light; preparing a phosphor capable of absorbing a part of the blue color light emitted from the light emitting component and emitting a yellow color light, wherein selection of the phosphor is controlled based on an emission wavelength of the light emitting component; and combining the light emitting component and the phosphor so that the blue color light from the light emitting component and the yellow color light from the phosphor are mixed to make a white color light.Type: ApplicationFiled: November 9, 2010Publication date: March 3, 2011Inventors: Yoshinori Shimieu, Kensho Sakano, Yasunobu Noguchi, Toshio Moriguchi
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Patent number: 7855092Abstract: A device for emitting white-color light comprises: a light emitting diode including: an LED chip comprising a gallium nitride compound semiconductor containing indium and being capable of emitting a blue color light, and a phosphor capable of absorbing a part of the blue color light and emitting a light having longer wavelength than the blue color light, the blue color light and the light from the phosphor being mixed to make the white-color; a control unit for converting an input to pulse signals; and a driver receiving the pulse signals from the control unit to drive the LED chip, wherein the brightness of the white-color light from the light emitting diode is controlled by a width of the pulse signals.Type: GrantFiled: July 1, 2010Date of Patent: December 21, 2010Assignee: Nichia CorporationInventors: Yoshinori Shimizu, Kensho Sakano, Yasunobu Noguchi, Toshio Moriguchi
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Publication number: 20100264842Abstract: A device for emitting various colors by mixing light from a first light emitting diode and light from a second light emitting diode comprises, according to one embodiment: the first light emitting diode including an LED chip comprising InGaN and being capable of emitting a blue color light, and a phosphor capable of absorbing a part of the blue color light and emitting a yellow color light, the blue color light and the yellow color light being mixed to make white-color light; the second light emitting diode being capable of emitting red, green or blue color light; and a drive circuit for separately driving each of the first and second light emitting diode.Type: ApplicationFiled: July 7, 2010Publication date: October 21, 2010Applicant: NICHIA CORPORATIONInventors: Yoshinori Shimizu, Kensho Sakano, Yasunobu Noguchi, Toshio Moriguchi
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Publication number: 20100264841Abstract: A device for emitting white-color light comprises: a light emitting diode including: an LED chip comprising a gallium nitride compound semiconductor containing indium and being capable of emitting a blue color light, and a phosphor capable of absorbing a part of the blue color light and emitting a light having longer wavelength than the blue color light, the blue color light and the light from the phosphor being mixed to make the white-color; a control unit for converting an input to pulse signals; and a driver receiving the pulse signals from the control unit to drive the LED chip, wherein the brightness of the white-color light from the light emitting diode is controlled by a width of the pulse signals.Type: ApplicationFiled: July 1, 2010Publication date: October 21, 2010Applicant: NICHIA CORPORATIONInventors: Yoshinori Shimizu, Kensho Sakano, Yasunobu Noguchi, Toshio Moriguchi
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Patent number: 7795624Abstract: A semiconductor device comprises a semiconductor element and a support body made of a stack of ceramic layers having a recess in which electrical conductors are electrically connected with the semiconductor element, wherein at least a part of a top face of a recess side wall is covered by a resin, thereby providing a light emitting device.Type: GrantFiled: October 29, 2007Date of Patent: September 14, 2010Assignee: Nichia CorporationInventor: Kensho Sakano