Patents by Inventor Tsutsui Tsuyoshi

Tsutsui Tsuyoshi 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).

  • Light emitting device and manufacturing method thereof
    Patent number: 8633504
    Abstract: A light emitting device includes: a substrate; a light emitting element disposed on the substrate; a wavelength conversion unit disposed on the substrate to cover at least an upper surface of the light emitting element; and a reflection unit formed to cover a side surface and a lower surface of the substrate and having a resin and a reflective filler dispersed in the resin. Light emitting devices having uniform characteristics can be obtained by minimizing a chromaticity distribution of white light with respect to the different light emitting devices.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: January 21, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Tsutsui Tsuyoshi
  • LIGHT EMITTING DEVICE AND MANUFACTURING METHOD THEREOF
    Publication number: 20120112228
    Abstract: A light emitting device includes: a substrate; a light emitting element disposed on the substrate; a wavelength conversion unit disposed on the substrate to cover at least an upper surface of the light emitting element; and a reflection unit formed to cover a side surface and a lower surface of the substrate and having a resin and a reflective filler dispersed in the resin. Light emitting devices having uniform characteristics can be obtained by minimizing a chromaticity distribution of white light with respect to the different light emitting devices.
    Type: Application
    Filed: November 4, 2011
    Publication date: May 10, 2012
    Inventor: Tsutsui Tsuyoshi