Patents by Inventor Kolawole A. Otitoju

Kolawole A. Otitoju 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).

  • Electronic dimming ballast
    Patent number: 6452344
    Abstract: An electronic dimming ballast has a parallel loaded resonant output circuit plus a combination of pulse width modulation and frequency variation to accomplish the dimming of compact fluorescent lamps. The ballast operates at a fixed frequency throughout a selected range of light levels, with dimming control being done completely by duty cycle variation over this range of operation, and then smoothly moves to a variable frequency as the light output moves outside the selected range, with both duty cycle and frequency variation being the means of lamp light output control outside the selected range.
    Type: Grant
    Filed: February 12, 1999
    Date of Patent: September 17, 2002
    Assignee: Lutron Electronics Co., Inc.
    Inventors: Russell L. MacAdam, Mark S. Taipale, Oliver K. Mihm, David G. Luchaco, Jason C. Killo, Kolawole A. Otitoju