Patents by Inventor Takafumi Sugiyama
Takafumi Sugiyama 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: 20240039249Abstract: A light-emitting module includes: a support base having a plurality of placement surfaces arranged in a first direction; a plurality of semiconductor laser elements disposed on respective ones of the plurality of placement surfaces, each semiconductor laser element configured to emit laser beams; a plurality of first mirror members, each having a first reflective surface configured to reflect and change a traveling direction of the laser beams from a respective one of the semiconductor laser elements; and a plurality of second mirror members, each having a second reflective surface, at least a portion of the second reflective surface being positioned above at least a portion of a respective one of the first reflective surfaces, and the second reflective surface being configured to reflect, in a second direction intersecting the first direction, the laser beams reflected by the respective first reflective surface.Type: ApplicationFiled: July 27, 2023Publication date: February 1, 2024Applicant: NICHIA CORPORATIONInventors: Kazuya HATAKEYAMA, Kazuma KOZURU, Masanobu TANAKA, Takafumi SUGIYAMA
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Publication number: 20230072275Abstract: A light emission module includes a first light emission unit that includes a first light emission device and emits first light. The first light emission device includes a plurality of first light emission portions, each including a light emission surface, where light from a plurality of first light emission elements is emitted, a heat dissipation surface provided opposite to the light emission surface, and a connection portion being positioned between the light emission surface and the heat dissipation surface and including a wiring mounting surface where the light emission elements are electrically connected.Type: ApplicationFiled: February 10, 2021Publication date: March 9, 2023Applicant: NICHIA CORPORATIONInventors: Takafumi SUGIYAMA, Kaname SAITO, Takashi NAMIE, Takuya SUZUKI
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Patent number: 11585494Abstract: A fluorescent module includes a fluorescent member including a phosphor-containing layer, and a light reflecting layer disposed on the phosphor-containing layer. The phosphor-containing layer contains a YAG phosphor and a Ga-YAG phosphor within the same layer, the Ga-YAG phosphor being a phosphor in which a portion of the aluminum constituting the YAG phosphor is substituted with gallium. A volumetric ratio of the Ga-YAG phosphor to the entirety of the YAG phosphor and the Ga-YAG phosphor is in a range of 19.0% to 80%.Type: GrantFiled: August 24, 2021Date of Patent: February 21, 2023Assignee: NICHIA CORPORATIONInventors: Takafumi Sugiyama, Toshiyuki Hirai, Masahiko Sano, Toru Takasone
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Publication number: 20210381662Abstract: A fluorescent module includes a fluorescent member including a phosphor-containing layer, and a light reflecting layer disposed on the phosphor-containing layer. The phosphor-containing layer contains a YAG phosphor and a Ga-YAG phosphor within the same layer, the Ga-YAG phosphor being a phosphor in which a portion of the aluminum constituting the YAG phosphor is substituted with gallium. A volumetric ratio of the Ga-YAG phosphor to the entirety of the YAG phosphor and the Ga-YAG phosphor is in a range of 19.0% to 80%.Type: ApplicationFiled: August 24, 2021Publication date: December 9, 2021Inventors: Takafumi SUGIYAMA, Toshiyuki HIRAI, Masahiko SANO, Toru TAKASONE
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Patent number: 11131433Abstract: A fluorescent module includes a fluorescent member, a heat dissipation member, and an optical relaxation member. The fluorescent member includes a phosphor-containing layer, and a light reflecting layer. The fluorescent member is secured to the heat dissipation member so that the light reflecting layer is arranged between the phosphor-contacting layer and the heat dissipation member. The optical relaxation member is configured to absorb and/or diffuse light. The optical relaxation member is arranged with respect to the fluorescent member so that the light reflecting layer is arranged between the phosphor-containing layer and the optical relaxation member.Type: GrantFiled: August 8, 2019Date of Patent: September 28, 2021Assignee: NICHIA CORPORATIONInventors: Takafumi Sugiyama, Toshiyuki Hirai, Masahiko Sano, Toru Takasone
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Publication number: 20200056751Abstract: A fluorescent module includes a fluorescent member, a heat dissipation member, and an optical relaxation member. The fluorescent member includes a phosphor-containing layer, and a light reflecting layer. The fluorescent member is secured to the heat dissipation member so that the light reflecting layer is arranged between the phosphor-contacting layer and the heat dissipation member. The optical relaxation member is configured to absorb and/or diffuse light. The optical relaxation member is arranged with respect to the fluorescent member so that the light reflecting layer is arranged between the phosphor-containing layer and the optical relaxation member.Type: ApplicationFiled: August 8, 2019Publication date: February 20, 2020Inventors: Takafumi SUGIYAMA, Toshiyuki HIRAI, Masahiko SANO, Toru TAKASONE
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Patent number: 10442987Abstract: A fluorescent member includes: a plurality of fluorescent particles; an inorganic binder; and a plurality of pores. An upper surface of the fluorescent member is a light extraction surface of the fluorescent member. The plurality of pores are localized in a vicinity of at least one of the plurality of fluorescent particles in a cross section that is parallel to the upper surface of the fluorescent member and extends through the fluorescent particles and the pores.Type: GrantFiled: August 30, 2018Date of Patent: October 15, 2019Assignee: NICHIA CORPORATIONInventors: Toru Takasone, Masahiko Sano, Hiroyuki Inoue, Shoichi Yamada, Takafumi Sugiyama
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Publication number: 20190062627Abstract: A fluorescent member includes: a plurality of fluorescent particles; an inorganic binder; and a plurality of pores. An upper surface of the fluorescent member is a light extraction surface of the fluorescent member. The plurality of pores are localized in a vicinity of at least one of the plurality of fluorescent particles in a cross section that is parallel to the upper surface of the fluorescent member and extends through the fluorescent particles and the pores.Type: ApplicationFiled: August 30, 2018Publication date: February 28, 2019Applicant: NICHIA CORPORATIONInventors: Toru TAKASONE, Masahiko SANO, Hiroyuki INOUE, Shoichi YAMADA, Takafumi SUGIYAMA
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Patent number: 10218148Abstract: A light emitting device includes a semiconductor laser element; a cap defining a through-hole allowing light from the semiconductor laser element to pass therethrough; and a wavelength converting member disposed in the through-hole defined in the cap, the wavelength converting member being configured to emit light that has a wavelength different from a wavelength of light from the semiconductor laser element. The cap includes a first member made of a ceramic, and a second member made of a metal material. The through-hole includes a first through-hole penetrating the first member, and a second through-hole penetrating the second member. The wavelength converting member is disposed on the second member.Type: GrantFiled: April 7, 2015Date of Patent: February 26, 2019Assignee: NICHIA CORPORATIONInventor: Takafumi Sugiyama
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Patent number: 10139715Abstract: A light source device includes a light-emitting element; a base that includes a plurality of segment regions and that is controllable so that light from the light-emitting element sequentially enters the respective segment regions; a fluorescent member that is provided in at least one of the segment regions and that includes a fluorescent material that is excitable by light from the light-emitting element and configured to emit light with a different wavelength from the light emitted from the light-emitting element; and a filter that is provided so as to correspond to at least one of the fluorescent members, which is configured to transmit at least a part of light from the fluorescent material, and which is configured to transmit a part of light that is transmitted through the fluorescent member among the light from the light-emitting element.Type: GrantFiled: June 2, 2015Date of Patent: November 27, 2018Assignee: NICHIA CORPORATIONInventor: Takafumi Sugiyama
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Patent number: 9835310Abstract: A wave-length conversion inorganic member can includes a base body and an inorganic particle layer on the base body. The inorganic particle layer can include particles of an inorganic wave-length conversion substance which is configured to absorb light of a first wave-length and to emit light of a second wave-length different from the first wave-length. The inorganic particle layer can include an agglomerate of a plurality of the particles. Each of the plurality of the particles are in contact with at least one of the other particles or the base body. A cover layer comprises an inorganic material, and the cover layer continuously covers a surface of the base body and surfaces of the particles. The inorganic particle layer has an interstice enclosed by the particles, or by the particles and one of the base body and the cover layer.Type: GrantFiled: January 6, 2015Date of Patent: December 5, 2017Assignee: NICHIA CORPORATIONInventors: Hiroto Tamaki, Takayoshi Wakaki, Tadao Hayashi, Yoshiki Sato, Daisuke Oyamatsu, Takafumi Sugiyama, Takao Kosugi
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Patent number: 9720310Abstract: Provided is a high-emission light source device which is capable of obtaining a desired color tone of red light and can be mounted on a small projector. A light source device includes a first light source for emitting a red light, a second light source for emitting a light different from the red light, a fluorescent member for emitting a light containing a red light component and a light component other than the red light component upon receiving the light emitted from the second light source, and a filter for transmitting or reflecting the red light component of the light emitted from the fluorescent member.Type: GrantFiled: May 22, 2015Date of Patent: August 1, 2017Assignee: NICHIA CORPORATIONInventors: Takafumi Sugiyama, Shinichi Nagahama
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Patent number: 9519207Abstract: Provided is a wavelength converting device having excellent optical output. The wavelength converting device includes a substrate and a wavelength converting member disposed on the substrate. The wavelength converting member includes a fluorescent material powder and a binder binding the fluorescent material powder. An upper surface of the wavelength converting member serves as a light emitting surface which includes upper surfaces of the fluorescent material powder and an upper surface of the binder. The binder has first recesses formed adjacent to the fluorescent material powder in the upper surface of the binder.Type: GrantFiled: December 26, 2012Date of Patent: December 13, 2016Assignee: NICHIA CORPORATIONInventors: Yoshitaka Nakatsu, Takafumi Sugiyama
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Publication number: 20150362135Abstract: A light source device includes a light-emitting element; a base that includes a plurality of segment regions and that is controllable so that light from the light-emitting element sequentially enters the respective segment regions; a fluorescent member that is provided in at least one of the segment regions and that includes a fluorescent material that is excitable by light from the light-emitting element and configured to emit light with a different wavelength from the light emitted from the light-emitting element; and a filter that is provided so as to correspond to at least one of the fluorescent members, which is configured to transmit at least a part of light from the fluorescent material, and which is configured to transmit a part of light that is transmitted through the fluorescent member among the light from the light-emitting element.Type: ApplicationFiled: June 2, 2015Publication date: December 17, 2015Applicant: NICHIA CORPORATIONInventor: Takafumi SUGIYAMA
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Publication number: 20150338727Abstract: Provided is a high-emission light source device which is capable of obtaining a desired color tone of red light and can be mounted on a small projector. A light source device includes a first light source for emitting a red light, a second light source for emitting a light different from the red light, a fluorescent member for emitting a light containing a red light component and a light component other than the red light component upon receiving the light emitted from the second light source, and a filter for transmitting or reflecting the red light component of the light emitted from the fluorescent member.Type: ApplicationFiled: May 22, 2015Publication date: November 26, 2015Applicant: Nichia CorporationInventors: Takafumi SUGIYAMA, Shinichi NAGAHAMA
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Publication number: 20150292687Abstract: A light emitting device includes a semiconductor laser element; a cap defining a through-hole allowing light from the semiconductor laser element to pass therethrough; and a wavelength converting member disposed in the through-hole defined in the cap, the wavelength converting member being configured to emit light that has a wavelength different from a wavelength of light from the semiconductor laser element. The cap includes a first member made of a ceramic, and a second member made of a metal material. The through-hole includes a first through-hole penetrating the first member, and a second through-hole penetrating the second member. The wavelength converting member is disposed on the second member.Type: ApplicationFiled: April 7, 2015Publication date: October 15, 2015Applicant: NICHIA CORPORATIONInventor: Takafumi SUGIYAMA
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Publication number: 20150159836Abstract: A wave-length conversion inorganic member can includes a base body and an inorganic particle layer on the base body. The inorganic particle layer can include particles of an inorganic wave-length conversion substance which is configured to absorb light of a first wave-length and to emit light of a second wave-length different from the first wave-length. The inorganic particle layer can include an agglomerate of a plurality of the particles. Each of the plurality of the particles are in contact with at least one of the other particles or the base body. A cover layer comprises an inorganic material, and the cover layer continuously covers a surface of the base body and surfaces of the particles. The inorganic particle layer has an interstice enclosed by the particles, or by the particles and one of the base body and the cover layer.Type: ApplicationFiled: January 6, 2015Publication date: June 11, 2015Inventors: Hiroto TAMAKI, Takayoshi WAKAKI, Tadao HAYASHI, Yoshiki SATO, Daisuke OYAMATSU, Takafumi SUGIYAMA, Takao KOSUGI
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Patent number: 8994259Abstract: A wave-length conversion inorganic member can includes a base body and an inorganic particle layer on the base body. The inorganic particle layer can include particles of an inorganic wave-length conversion substance which is configured to absorb light of a first wave-length and to emit light of a second wave-length different from the first wave-length. The inorganic particle layer can include an agglomerate of a plurality of the particles. Each of the plurality of the particles are in contact with at least one of the other particles or the base body. A cover layer comprises an inorganic material, and the cover layer continuously covers a surface of the base body and surfaces of the particles. The inorganic particle layer has an interstice enclosed by the particles, or by the particles and one of the base body and the cover layer.Type: GrantFiled: March 28, 2013Date of Patent: March 31, 2015Assignee: Nichia CorporationInventors: Hiroto Tamaki, Takayoshi Wakaki, Tadao Hayashi, Yoshiki Sato, Daisuke Oyamatsu, Takafumi Sugiyama, Takao Kosugi
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Publication number: 20150077972Abstract: A light emitting device includes a semiconductor laser element configured to emit laser light having a peak wavelength of 460 nm or less; a base body having a through-hole through which the laser light passes from a bottom to a top of the base body; a fluorescent member disposed so as to close the through-hole; and a filter configured to reflect fluorescence from the fluorescent member, the filter being disposed below the fluorescent member at a position above and spaced apart from a plane including a lower end of the through-hole. At least in a portion lower than the filter, an inner surface of the base body defining the through-hole includes an inclination surface that is inclined such that the through-hole expands from a lower part of the through-hole toward an upper part of the through-hole. A reflection layer containing aluminum is formed on the inclination surface.Type: ApplicationFiled: September 16, 2014Publication date: March 19, 2015Inventors: Takafumi Sugiyama, Eiichiro Okahisa, Kazutaka Tsukayama, Chiaki Masutomi
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Patent number: 8908740Abstract: A light emitting device, comprises: a light source that emits excitation light; a light guide that propagates the excitation light, and in which the refractive index of the center part (core) of a cross section is higher than the refractive index of the peripheral part (cladding); a wavelength conversion member that absorbs the excitation light propagated by the light guide and converts the wavelength thereof, and releases light of a predetermined wavelength band; and a shielding member that blocks the wavelength of at least part of the excitation light and the light emitted from the wavelength conversion member.Type: GrantFiled: February 6, 2007Date of Patent: December 9, 2014Assignee: Nichia CorporationInventors: Shinichi Nagahama, Atsutomo Hama, Takafumi Sugiyama, Tomohisa Kishimoto