Patents by Inventor Nicolaas J. de Jong

Nicolaas J. de Jong 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).

  • Ignition scheme for a high pressure discharge lamp
    Patent number: 5828186
    Abstract: A circuit arrangement for igniting a high pressure discharge lamp includes a secondary winding of a pulse transformer which is at least partially capacitively shunted forming a tuned filter. The tuned filter preferably forms a band pass filter for passing the second harmonic of the signal produced by a pulse generator. An increase in the supply of current during take-over results thereby minimizing the time required for ignition.
    Type: Grant
    Filed: February 29, 1996
    Date of Patent: October 27, 1998
    Assignee: U.S. Philips Corporation
    Inventors: Frans Slegers, Hendrik J. Blankers, Nicolaas J. De Jong
  • Compact fluorescent lamp having a rigidly connected circuit board and lamp cap shell integrally molded in a housing of synthetic material
    Patent number: 5164635
    Abstract: The electric lamp has a light source and an integral assembly of a lamp cap shell and a printed circuit board rigidly connected to said shell. A housing is formed of synthetic material in which said circuit board and an end portion of said light source are embedded. The synthetic material extends through an aperture in said shell, forming an insulative base portion. The electric lamp is of simple construction that allows for easy manufacture.
    Type: Grant
    Filed: December 19, 1991
    Date of Patent: November 17, 1992
    Assignee: U.S. Philips Corporation
    Inventors: Nicolaas J. De Jong, Theodoor H. Stommen
  • Transformer with single turn U-shaped winding
    Patent number: 4200853
    Abstract: A transformer, one winding of which consists of a single turn which is formed by a conductor which is bent to be U-shaped and which is embedded in a body of synthetic material, the two ends of said conductor projecting outside the body and forming connection pins.
    Type: Grant
    Filed: May 1, 1978
    Date of Patent: April 29, 1980
    Assignee: U.S. Philips Corporation
    Inventors: Nicolaas J. de Jong, Adrianus C. W. Custers