Patents by Inventor Masahiro Higashikawa

Masahiro Higashikawa 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, plasma display panel, and plasma display device
    Patent number: 8330340
    Abstract: The light emitting device according to the present invention includes: a substrate (11); a light emitting layer (13) provided on the substrate (11); and a reflective layer (12) provided between the substrate (11) and the light emitting layer (13). The reflective layer (12) includes plate-like inorganic oxide particles. The inorganic oxide particles are accumulated on the substrate (11) in such a way that the largest face of each of the inorganic oxide particles is oriented substantially parallel to the principal plane of the substrate (11).
    Type: Grant
    Filed: January 29, 2009
    Date of Patent: December 11, 2012
    Assignee: Panasonic Corporation
    Inventors: Masahiro Higashikawa, Izumi Toyoda, Kenji Hasegawa
  • LIGHT EMITTING DEVICE, PLASMA DISPLAY PANEL, AND PLASMA DISPLAY DEVICE
    Publication number: 20110043106
    Abstract: The light emitting device according to the present invention includes: a substrate (11); a light emitting layer (13) provided on the substrate (11); and a reflective layer (12) provided between the substrate (11) and the light emitting layer (13). The reflective layer (12) includes plate-like inorganic oxide particles. The inorganic oxide particles are accumulated on the substrate (11) in such a way that the largest face of each of the inorganic oxide particles is oriented substantially parallel to the principal plane of the substrate (11).
    Type: Application
    Filed: January 29, 2009
    Publication date: February 24, 2011
    Applicant: PANASONIC CORPORATION
    Inventors: Masahiro Higashikawa, Izumi Toyoda, Kenji Hasegawa
  • Electrodeless discharge lamp
    Patent number: 5013975
    Abstract: An electrodeless discharge lamp includes a lamp tube coated on inner surface with a fluorescent material and filled with mercury vapor and a rare gas where the gas provides an excitation luminescence of the same series of color as luminous color of the fluorescent material. The gas and vapor in the tube effectively maintain the luminescence of the lamp over a wide ambient temperature range where the rare gas provides luminescence of a selected color at lower temperatures and the mercury vapor and fluorescent material provide luminescence of the same color in the middle and higher temperature ranges.
    Type: Grant
    Filed: November 21, 1989
    Date of Patent: May 7, 1991
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Shin Ukegawa, Masaki Shinomiya, Masahiro Higashikawa, Tadao Uetsuki, Koichi Kobayashi
  • Electrodeless discharge lamp device
    Patent number: 4864194
    Abstract: An electrodeless discharge lamp device has an envelope in which a gas that discharges to emit light upon application of a high frequency voltage is sealed, the envelope including two straight pipe parts forming a circulating discharge path, so that a high frequency electric current is caused to flow throughout the discharging gas in the entire envelope and a uniform discharge light emission can be attained.
    Type: Grant
    Filed: May 4, 1988
    Date of Patent: September 5, 1989
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Koichi Kobayashi, Masaki Shinomiya, Tsutomu Kobayashi, Masahiro Higashikawa, Shin Ukegawa