Patents by Inventor Kouki Hongou

Kouki Hongou 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).

  • Linear illumination device
    Patent number: 6268600
    Abstract: A linear illumination device of the present invention includes: a guide made of a light transmitting material extending in a first direction, having a side face and at least one end face; at least one light emitter for allowing light to enter interior of the guide from the at least one end face of the guide; and a light diffusing section formed on part of the side face of the guide, for diffusing the light incident thereon by refraction, wherein at least part of the light entering the interior of the guide goes out from part of the side face of the guide facing the light diffusing section, thereby providing substantially linear illumination light along the first direction.
    Type: Grant
    Filed: June 25, 1999
    Date of Patent: July 31, 2001
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tetsuroh Nakamura, Kouki Hongou, Eiichiro Tanaka, Shinji Fujiwara, Takahiko Murata, Yuka Kajita
  • Linear illumination device
    Patent number: 6127675
    Abstract: A linear illumination device of the present invention includes: a guide made of a light transmitting material extending in a first direction, having a side face and at least one end face; at least one light emitter for allowing light to enter interior of the guide from the at least one end face of the guide; and a light diffusing section formed on part of the side face of the guide, for diffusing the light incident thereon, wherein at least part of the light entering the interior of the guide goes out from part of the side face of the guide facing the light diffusing section, thereby providing substantially linear illumination light along the first direction.
    Type: Grant
    Filed: January 27, 1999
    Date of Patent: October 3, 2000
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tetsuroh Nakamura, Kouki Hongou, Eiichiro Tanaka, Shinji Fujiwara, Takahiko Murata, Yuka Kajita
  • Linear illumination device
    Patent number: 6072171
    Abstract: A linear illumination device of the present invention includes: a guide made of a light transmitting material extending in a first direction, having a side face and at least one end face; at least one light emitter for allowing light to enter interior of the guide from the at least one end face of the guide; and a light diffusing section formed on part of the side face of the guide, for diffusing the light incident thereon, wherein at least part of the light entering the interior of the guide goes out from part of the side face of the guide facing the light diffusing section, thereby providing substantially linear illumination light along the first direction.
    Type: Grant
    Filed: November 10, 1997
    Date of Patent: June 6, 2000
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tetsuroh Nakamura, Kouki Hongou, Eiichiro Tanaka, Shinji Fujiwara, Takahiko Murata, Yuka Kajita
  • Linear illumination device
    Patent number: 5969343
    Abstract: A linear illumination device of the present invention includes: a guide made of a light transmitting material extending in a first direction, having a side face and at least one end face; at least one light emitter for allowing light to enter interior of the guide from the at least one end face of the guide; and a light diffusing section formed on part of the side face of the guide, for diffusing the light incident thereon, wherein at least part of the light entering the interior of the guide goes out from part of the side face of the guide facing the light diffusing section, thereby providing substantially linear illumination light along the first direction.
    Type: Grant
    Filed: February 29, 1996
    Date of Patent: October 19, 1999
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tetsuroh Nakamura, Kouki Hongou, Eiichiro Tanaka, Shinji Fujiwara, Takahiko Murata, Yuka Kajita