Patents by Inventor Osamu Inoko

Osamu Inoko 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).

  • LED lighting power source and LED lighting system
    Patent number: 8405325
    Abstract: Problem to be Solved: In left and right independent lighting power sources, even when left and right light-emitting units each including one or a plurality of LEDs light up with a time difference, the quality of emission as headlamps is increased by making it difficult to visually identify the time difference. Solution: A DC/DC converter for supplying the electric power supplied by a battery to the light-emitting unit is operated to change the current supplied to the light-emitting unit such that the current is gradually increased to attain a rated current, to thus avoid the case where one of the left and right headlamps enters a lighting state, when the other does not light up yet.
    Type: Grant
    Filed: July 22, 2009
    Date of Patent: March 26, 2013
    Assignee: Mitsubishi Electric Corporation
    Inventors: Osamu Inoko, Takashi Ohsawa
  • LED LIGHTING POWER SOURCE AND LED LIGHTING SYSTEM
    Publication number: 20110175530
    Abstract: Problem to be Solved: In left and right independent lighting power sources, even when left and right light-emitting units each including one or a plurality of LEDs light up with a time difference, the quality of emission as headlamps is increased by making it difficult to visually identify the time difference. Solution: A DC/DC converter for supplying the electric power supplied by a battery to the light-emitting unit is operated to change the current supplied to the light-emitting unit such that the current is gradually increased to attain a rated current, to thus avoid the case where one of the left and right headlamps enters a lighting state, when the other does not light up yet.
    Type: Application
    Filed: July 22, 2009
    Publication date: July 21, 2011
    Inventors: Osamu Inoko, Takashi Ohsawa