Patents by Inventor Yasunori Nagahata

Yasunori Nagahata 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).

  • Publication number: 20130307014
    Abstract: According to an embodiment, a semiconductor light emitting device includes a insulating base and a semiconductor light emitting element and resin. The insulating base includes a first face, a second face opposite to the first face, and a side face connecting to the first face and the second face, a recess portion being provided on the side face extending from the first face to the second face. The insulating base also includes a first metal layer blocking an opening of the recess portion, a second metal layer on an inner face of the recess portion, and a third metal layer on the second face, the third metal being electrically connected to the first metal layer via the second metal layer. A semiconductor light emitting element is fixed on the first face; and resin covers the first face and seals the semiconductor light emitting element.
    Type: Application
    Filed: September 13, 2012
    Publication date: November 21, 2013
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Mami Yamamoto, Kazuhiro Inoue, Yasunori Nagahata, Teruo Takeuchi, Hidenori Egoshi
  • Publication number: 20120273826
    Abstract: According to one embodiment, an LED package includes a first leadframe and a second leadframe mutually-separated, an LED chip and a resin body. The LED chip is provided above the first and second leadframes. One terminal of the LED chip is connected to the first leadframe. One other terminal is connected to the second leadframe. The resin body covers an entire upper surface, a portion of a lower surface, and a portion of an end surface of each of the first and second leadframes. The resin body covers the LED chip. Remaining portions of the lower surface and the end surface of each of the first and second leadframes are exposed on the resin body. First and second recesses are made between the remaining portions of the first and second leadframes. An inner surface of each of the first and second recesses is not covered with the resin body.
    Type: Application
    Filed: September 16, 2011
    Publication date: November 1, 2012
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Mami Yamamoto, Kazuhiro Inoue, Satoshi Shimizu, Hidenori Egoshi, Yasunori Nagahata
  • Patent number: 8258698
    Abstract: According to one embodiment, a light emitting device includes a first lead, a light emitting element, a second lead and a molded body. The first lead includes a die pad portion having a major surface and a recess provided in the major surface, and a bent portion bent toward above the major surface. The light emitting element is bonded to a bottom surface of the recess. The second lead with one end portion is opposed to one end portion of the first lead. The molded body covers the light emitting element, the bent portion, the die pad portion, and the one end portion of the second lead, and is made of a resin. A position of barycenter of the molded body is set between a lower surface of the die pad portion and a plane including an upper end of the bent portion.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: September 4, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tetsuya Muranaka, Yasunori Nagahata
  • Publication number: 20110309736
    Abstract: According to one embodiment, a light emitting device includes a first lead, a light emitting element, a second lead and a molded body. The first lead includes a die pad portion having a major surface and a recess provided in the major surface, and a bent portion bent toward above the major surface. The light emitting element is bonded to a bottom surface of the recess. The second lead with one end portion is opposed to one end portion of the first lead. The molded body covers the light emitting element, the bent portion, the die pad portion, and the one end portion of the second lead, and is made of a resin. A position of barycenter of the molded body is set between a lower surface of the die pad portion and a plane including an upper end of the bent portion.
    Type: Application
    Filed: December 16, 2010
    Publication date: December 22, 2011
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tetsuya Muranaka, Yasunori Nagahata
  • Patent number: D609653
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: February 9, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tamitoshi Watanabe, Yasunori Nagahata
  • Patent number: D624511
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: September 28, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tamitoshi Watanabe, Yasunori Nagahata