Patents by Inventor Erika Takenaka

Erika Takenaka 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).

  • Patent number: 8901848
    Abstract: The present invention comprises a lighting apparatus main body having a reflecting surface, a main light source arranged in the reflecting surface of the lighting apparatus main body, a sub-light source which is arranged at the lighting apparatus main body and illuminates the neighborhood of the main light source directly, and a control circuit which controls the main light source and the sub-light source. Since the lighting apparatus illuminates downward with a direct illumination of the main light source and an indirect illumination of the sub-light source, the glare of the main light source is reduced.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: December 2, 2014
    Assignees: Toshiba Lighting & Technology Corporation, Kabushiki Kaisha Toshiba
    Inventors: Hiroaki Watanabe, Keiichi Shimizu, Kozo Ogawa, Erika Takenaka, Akimichi Takahashi, Shinji Nogi, Shinichi Kumashiro
  • Patent number: 8783914
    Abstract: A light emitting apparatus comprising a light reflecting surface made of a metal, a light emitting element which has an electrode and is mounted on the light reflecting surface, and a sealing member which covers the light reflecting surface and the light emitting element. The sealing member has translucency and oxygen gas permeability of 40000 cc/m2·day or below.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: July 22, 2014
    Assignee: Toshiba Lighting & Technology Corporation
    Inventors: Tomohiro Sanpei, Erika Takenaka
  • Patent number: 8760042
    Abstract: A lighting device and a lighting fixture of the embodiment of the present invention comprises a thermally conductive main body having a substrate support portion in one end portion, and having a through-hole and a groove portion formed in the substrate support portion, the through-hole penetrating from the one end portion to the other end portion of the main body, the groove portion extending continuously from the through-hole, a substrate mounted with a semiconductor light-emitting device, and disposed on the substrate support portion, an electrical connector connected to the semiconductor light-emitting device, a power supply device housed in the main body and configured to light the semiconductor light-emitting device, a wire connected to the power supply device and to the electrical connector while being inserted through the through-hole and the groove portion, and a base member provided in the other end portion of the main body and connected to the power supply device.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: June 24, 2014
    Assignee: Toshiba Lighting & Technology Corporation
    Inventors: Makoto Sakai, Shigeru Osawa, Yusuke Shibahara, Takeshi Hisayasu, Kazuto Morikawa, Tomohiro Sanpei, Erika Takenaka
  • Publication number: 20130308294
    Abstract: According to one embodiment, a luminaire includes a substrate, a light-emitting section mounted on the substrate and including a light-emitting element, an outer frame body provided with a through-hole in a bottom surface, provided on the substrate to locate the light-emitting section in the through-hole, and made of an insulator, and a cylindrical reflector in the outer frame body, including a first opening end and a second opening end having an area larger than the first opening end, and provided on the bottom surface with the first opening end. A step is absent in at least one part of the part between an inner wall surface of the through-hole and an inner wall surface of the reflector. An area of a third opening end on the substrate side of the through-hole is smaller than an area of a fourth opening end on the reflector side of the through-hole.
    Type: Application
    Filed: March 15, 2013
    Publication date: November 21, 2013
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Lighting & Technology Corporation
    Inventors: Kenji Nezu, Hiroshi Matsushita, Yuichiro Takahara, Makoto Otsuka, Yasuhide Okada, Hiromi Nara, Erika Takenaka
  • Patent number: 8446082
    Abstract: According to one embodiment, a light-emitting device includes a substrate, a light reflection layer, a plurality of light-emitting elements, and a sealing member. The substrate includes an insulating layer constituted of epoxy resin using an acid anhydride as a hardening agent or one of a polyimide resin, a polyethylene terephthalate resin, and a fluororesin. The light reflection layer is formed on the insulating layer. The light reflection layer includes a metallic light-reflecting surface higher in optical reflectance than the insulating layer. The light-emitting elements are mounted on the light-reflecting surface. The sealing member is constituted of a material having gas permeability and translucency, and is formed on the insulating layer to seal the light reflection layer and the light-emitting elements.
    Type: Grant
    Filed: March 16, 2011
    Date of Patent: May 21, 2013
    Assignee: Toshiba Lighting & Technology Corporation
    Inventors: Tomohiro Sanpei, Erika Takenaka
  • Patent number: 8368113
    Abstract: According to one embodiment, a light emitting device includes a ceramics substrate, a metallic thermally-conductive layer formed on the substrate in which the substrate involves no electric connection, a light emitting element mounted on the metallic thermally-conductive layer, and a metallic bonding layer interposed between the metallic thermally-conductive layer and the light emitting element to bond the light emitting element to the metallic thermally-conductive layer.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: February 5, 2013
    Assignee: Toshiba Lighting & Technology Corporation
    Inventors: Shuhei Matsuda, Erika Takenaka, Tomohiro Sanpei, Kazuto Morikawa, Masahiro Izumi, Kiyoshi Nishimura
  • Patent number: 8354783
    Abstract: According to one embodiment, a light-emitting device includes a substrate including power-supply conductors, a frame member, and a sealing member. The power-supply conductors are formed on the substrate. A plurality of light-emitting elements including electrodes are mounted on the substrate. The electrodes of the light-emitting elements adjacent to the power-supply conductors are electrically connected to the power-supply conductors by a plurality of bonding wires. The frame member is made of resin which is coated on the substrate so as to surround the light-emitting elements and the bonding wires. The sealing member is filled in an area surrounded by the frame member and seals the light-emitting elements and the bonding wires.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: January 15, 2013
    Assignee: Toshiba Lighting & Technology Corporation
    Inventors: Erika Takenaka, Tomohiro Sanpei, Takeo Idezuki
  • Patent number: 8197086
    Abstract: A lighting fixture includes a light-emitting section composed of a plurality of semiconductor light-emitting devices arranged separated from one another on a planar substrate and a lighting control section configured to control lighting of the semiconductor light-emitting devices of the light-emitting section. The light-emitting section is attached at a front of a fixture main body, and a convection generation section configured to generate convection is provided at a back of the fixture main body. The convection generation section generates convection and promotes heat radiation. With the configuration, even if the lighting fixture is installed to abut on a ceiling surface, the effect of radiating heat generated by the semiconductor light-emitting devices can be ensured.
    Type: Grant
    Filed: November 23, 2009
    Date of Patent: June 12, 2012
    Assignees: Toshiba Lighting & Technology Corporation, Kabushiki Kaisha Toshiba
    Inventors: Hiroaki Watanabe, Erika Takenaka, Kozo Ogawa, Keiichi Shimizu, Tatsuo Maruyama
  • Publication number: 20120014110
    Abstract: A light emitting apparatus comprising a light reflecting surface made of a metal, a light emitting element which has an electrode and is mounted on the light reflecting surface, and a sealing member which covers the light reflecting surface and the light emitting element. The sealing member has translucency and oxygen gas permeability of 40000 cc/m2·day or below.
    Type: Application
    Filed: March 29, 2010
    Publication date: January 19, 2012
    Applicant: TOSHIBA LIGHTING & TECHNOLOGY CORPORATION
    Inventors: Tomohiro Sanpei, Erika Takenaka
  • Patent number: 8098003
    Abstract: According to one embodiment, a light-emitting module includes a module substrate, a reflective layer, conductive layers, a light-emitting element, and a sealing member. A reflective layer is provided on a surface of an insulating layer of the module substrate, and the conductive layers are provided in the vicinity of the reflective layer. Further, the light-emitting element is provided on the reflective layer. Moreover, the translucent sealing member has translucency and bury the reflective layer, the conductive layers, and the light-emitting element. The ratio of the area occupied by the reflective layer and the conductive layers to the sealed region sealed by the sealing member is equal to or greater than 80%.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: January 17, 2012
    Assignee: Toshiba Lighting & Technology Corporation
    Inventors: Kazuto Morikawa, Masahiro Izumi, Kiyoshi Nishimura, Tomohiro Sanpei, Erika Takenaka, Shuhei Matsuda
  • Publication number: 20120001215
    Abstract: According to one embodiment, a light-emitting module includes a module substrate, a light-reflecting layer, and a light-emitting element. The light-reflecting layer is superposed on the module substrate and has a reflection ratio higher than the reflection ratio of the module substrate. The light-emitting element is mounted on the module substrate. The light-reflecting layer includes a copper layer, a copper plating layer which covers the copper layer, and a metal layer which is superposed on the copper plating layer and reflects light emitted from the light-emitting element.
    Type: Application
    Filed: June 29, 2011
    Publication date: January 5, 2012
    Applicant: TOSHIBA LIGHTING & TECHNOLOGY CORPORATION
    Inventors: Tomohiro SANPEI, Erika TAKENAKA
  • Publication number: 20110291151
    Abstract: According to one embodiment, a light emitting device includes a ceramics substrate, a metallic thermally-conductive layer formed on the substrate in which the substrate involves no electric connection, a light emitting element mounted on the metallic thermally-conductive layer, and a metallic bonding layer interposed between the metallic thermally-conductive layer and the light emitting element to bond the light emitting element to the metallic thermally-conductive layer.
    Type: Application
    Filed: May 24, 2011
    Publication date: December 1, 2011
    Applicant: TOSHIBA LIGHTING & TECHNOLOGY CORPORATION
    Inventors: Shuhei MATSUDA, Erika TAKENAKA, Tomohiro SANPEI, Kazuto MORIKAWA, Masahiro IZUMI, Kiyoshi NISHIMURA
  • Patent number: 8057072
    Abstract: A light-emitting module includes at least one light-emitting element provided on a mount surface of a substratum. A translucent member is provided so as to face the mount surface of the substratum. The translucent member is separated from the light-emitting element and contains a phosphor material that converts a wavelength of light emitted by the light-emitting element. A frame having heat conducting properties is interposed between the substratum and the translucent member. The frame surrounds the light-emitting element. The frame includes an opening that leads light emitted by the light-emitting element to the translucent member, and a heat conductor thermally connected to the translucent member. The heat conductor includes a heat radiator exposed outside of the translucent member.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: November 15, 2011
    Assignee: Toshiba Lighting & Technology Corporation
    Inventors: Erika Takenaka, Kozo Ogawa, Keiichi Shimizu, Hiroaki Watanabe, Akimichi Takahashi, Shinji Nogi, Shinichi Kumashiro
  • Patent number: 8044570
    Abstract: A lighting device includes a printed wiring board, a plurality of light-emitting elements, a sealing member, and a color conversion unit, and an adhesive layer. The sealing member has light transmitting properties and seals the light-emitting elements mounted on the printed wiring board. The color conversion unit includes a cover member of light transmitting properties, and a fluorescent substance layer provided on the inner surface of the cover member. The adhesive layer has light-transmitting properties, and adheres the sealing member to the fluorescent substance layer of the color conversion unit in an airtight manner.
    Type: Grant
    Filed: October 20, 2009
    Date of Patent: October 25, 2011
    Assignee: Toshiba Lighting & Technology Corporation
    Inventors: Tsuyoshi Oyaizu, Kozo Ogawa, Seiko Kawashima, Akiko Takahashi, Haruki Takei, Erika Takenaka
  • Publication number: 20110234080
    Abstract: According to one embodiment, a light-emitting device includes a substrate, a light reflection layer, a plurality of light-emitting elements, and a sealing member. The substrate includes an insulating layer constituted of epoxy resin using an acid anhydride as a hardening agent or one of a polyimide resin, a polyethylene terephthalate resin, and a fluororesin. The light reflection layer is formed on the insulating layer. The light reflection layer includes a metallic light-reflecting surface higher in optical reflectance than the insulating layer. The light-emitting elements are mounted on the light-reflecting surface. The sealing member is constituted of a material having gas permeability and translucency, and is formed on the insulating layer to seal the light reflection layer and the light-emitting elements.
    Type: Application
    Filed: March 16, 2011
    Publication date: September 29, 2011
    Applicant: TOSHIBA LIGHTING & TECHNOLOGY CORPORATION
    Inventors: Tomohiro SANPEI, Erika Takenaka
  • Publication number: 20110068674
    Abstract: According to one embodiment, a light-emitting device includes a substrate including power-supply conductors, a frame member, and a sealing member. The power-supply conductors are formed on the substrate. A plurality of light-emitting elements including electrodes are mounted on the substrate. The electrodes of the light-emitting elements adjacent to the power-supply conductors are electrically connected to the power-supply conductors by a plurality of bonding wires. The frame member is made of resin which is coated on the substrate so as to surround the light-emitting elements and the bonding wires. The sealing member is filled in an area surrounded by the frame member and seals the light-emitting elements and the bonding wires.
    Type: Application
    Filed: September 17, 2010
    Publication date: March 24, 2011
    Applicant: TOSHIBA LIGHTING & TECHNOLOGY CORPORATION
    Inventors: Erika TAKENAKA, Tomohiro Sanpei, Takeo Idezuki
  • Publication number: 20100327751
    Abstract: The present invention provides a self-ballasted lamp which efficiently conducts heat of a plurality of LED chips of a light emitting module to its holder, and can prevent the temperature rise of the LED chips. The holder has a base portion, an edge portion provided at one end side of the base portion, which is thick at the base portion side thereof and thin at the distal end side thereof, and heat radiation fins provided at the other end side from the edge part and at the circumference of the base portion. The heat from the semiconductor light emitting elements is conducted from the base portion to the edge part and radiated therefrom. At this time, the edge part is thickened at the base portion side, wherein the thermal capacity is increased, and the heat conduction is improved.
    Type: Application
    Filed: June 29, 2010
    Publication date: December 30, 2010
    Applicants: TOSHIBA LIGHTING & TECHNOLOGY CORPORATION, KABUSHIKI KAISHA TOSHIBA
    Inventors: Erika Takenaka, Shigeru Osawa, Yusuke Shibahara, Takeshi Hisayasu, Kazuto Morikawa, Tomohiro Sanpei, Mokoto Sakai
  • Publication number: 20100301731
    Abstract: According to one embodiment, a light-emitting module includes a module substrate, a reflective layer, conductive layers, a light-emitting element, and a sealing member. A reflective layer is provided on a surface of an insulating layer of the module substrate, and the conductive layers are provided in the vicinity of the reflective layer. Further, the light-emitting element is provided on the reflective layer. Moreover, the translucent sealing member has translucency and bury the reflective layer, the conductive layers, and the light-emitting element. The ratio of the area occupied by the reflective layer and the conductive layers to the sealed region sealed by the sealing member is equal to or greater than 80%.
    Type: Application
    Filed: May 28, 2010
    Publication date: December 2, 2010
    Applicant: TOSHIBA LIGHTING & TECHNOLOGY CORPORATION
    Inventors: KAZUTO MORIKAWA, Masahiro Izumi, Kiyoshi Nishimura, Tomohiro Sanpei, Erika Takenaka, Shuhei Matsuda
  • Publication number: 20100219735
    Abstract: A lighting device and a lighting fixture of the embodiment of the present invention comprises a thermally conductive main body having a substrate support portion in one end portion, and having a through-hole and a groove portion formed in the substrate support portion, the through-hole penetrating from the one end portion to the other end portion of the main body, the groove portion extending continuously from the through-hole, a substrate mounted with a semiconductor light-emitting device, and disposed on the substrate support portion, an electrical connector connected to the semiconductor light-emitting device, a power supply device housed in the main body and configured to light the semiconductor light-emitting device, a wire connected to the power supply device and to the electrical connector while being inserted through the through-hole and the groove portion, and a base member provided in the other end portion of the main body and connected to the power supply device.
    Type: Application
    Filed: February 26, 2010
    Publication date: September 2, 2010
    Applicant: TOSHIBA LIGHTING & TECHNOLOGY CORPORATION
    Inventors: Makoto Sakai, Shigeru Osawa, Yusuke Shibahara, Takeshi Hisayasu, Kazuto Morikawa, Tomohiro Sanpei, Erika Takenaka
  • Publication number: 20100149783
    Abstract: A light-emitting module includes at least one light-emitting element provided on a mount surface of a substratum. A translucent member is provided so as to face the mount surface of the substratum. The translucent member is separated from the light-emitting element and contains a phosphor material that converts a wavelength of light emitted by the light-emitting element. A frame having heat conducting properties is interposed between the substratum and the translucent member. The frame surrounds the light-emitting element. The frame includes an opening that leads light emitted by the light-emitting element to the translucent member, and a heat conductor thermally connected to the translucent member. The heat conductor includes a heat radiator exposed outside of the translucent member.
    Type: Application
    Filed: December 10, 2009
    Publication date: June 17, 2010
    Applicant: TOSHIBA LIGHTING & TECHNOLOGY CORPORATION
    Inventors: Erika TAKENAKA, Kozo Ogawa, Keiichi Shimizu, Hiroaki Watanabe, Akimichi Takahashi, Shinji Nogi, Shinichi Kumashiro