Patents by Inventor Keiji Takasugi

Keiji Takasugi 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).

  • DISPLAY APPARATUS
    Publication number: 20110096045
    Abstract: A display apparatus according to one embodiment of the present invention is a display apparatus comprising a surface mount-type light-emitting device having an external terminal for surface mounting; a wiring substrate where the surface mount-type light-emitting device has been mounted; a lens unit disposed opposing the surface mount-type light-emitting device; and a frame body portion disposed surrounding the lens unit.
    Type: Application
    Filed: October 21, 2010
    Publication date: April 28, 2011
    Inventors: Masayuki ITO, Toshio Hata, Keiji Takasugi
  • Light emitting diode lamp and light emitting diode display unit
    Patent number: 7473014
    Abstract: An LED lamp has a convex lens 3 which has an upper portion 5 and a lower portion 6. An upper curved surface 5A of the upper portion is different in shape from a lower curved surface 6A of the lower portion 6 so as to refract rays of light from an LED chip 2 more strongly than the lower curved surface 6A does. This avoids reflection of incident outside light toward a front and hence prevents misrecognition. An interface plane S1 between the upper and lower portions 5 and 6 of the convex lens 3 is located on an upper end face 2A to thereby prevent collection of outgoing light upon the interface plane S1 and generation of an irregular emission peak at the front.
    Type: Grant
    Filed: October 11, 2005
    Date of Patent: January 6, 2009
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masaaki Katoh, Masatoshi Omoto, Masataka Miyata, Keiji Takasugi, Masahiro Seko
  • Light emitting diode lamp and light emitting diode display unit
    Publication number: 20060039143
    Abstract: An LED lamp has a convex lens 3 which has an upper portion 5 and a lower portion 6. An upper curved surface 5A of the upper portion is different in shape from a lower curved surface 6A of the lower portion 6 so as to refract rays of light from an LED chip 2 more strongly than the lower curved surface 6A does. This avoids reflection of incident outside light toward a front and hence prevents misrecognition. An interface plane S1 between the upper and lower portions 5 and 6 of the convex lens 3 is located on an upper end face 2A to thereby prevent collection of outgoing light upon the interface plane S1 and generation of an irregular emission peak at the front.
    Type: Application
    Filed: October 11, 2005
    Publication date: February 23, 2006
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Masaaki Katoh, Masatoshi Omoto, Masataka Miyata, Keiji Takasugi, Masahiro Seko
  • Light emitting diode lamp and light emitting diode display unit
    Publication number: 20040037076
    Abstract: An LED lamp has a convex lens 3 which has an upper portion 5 and a lower portion 6. An upper curved surface 5A of the upper portion is different in shape from a lower curved surface 6A of the lower portion 6 so as to refract rays of light from an LED chip 2 more strongly than the lower curved surface 6A does. This avoids reflection of incident outside light toward a front and hence prevents misrecognition. An interface plane S1 between the upper and lower portions 5 and 6 of the convex lens 3 is located on an upper end face 2A to thereby prevent collection of outgoing light upon the interface plane S1 and generation of an irregular emission peak at the front.
    Type: Application
    Filed: July 17, 2003
    Publication date: February 26, 2004
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Masaaki Katoh, Masatoshi Omoto, Masataka Miyata, Keiji Takasugi, Masahiro Seko