Patents by Inventor Jan W. Severin

Jan W. Severin 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).

  • Patent number: 5980679
    Abstract: A method of selectively metallizing a thermoplastic substrate using a hot foil embossing technique, a patterned metal layer being transferred to the substrate from a metal foil by a cutting and pressing procedure including steps (a) and (b). In step (a) the patterned metal layer is first cut from the foil using a punch-press at a selected pressure p.sub.a. In step (b) the cut patterned metal layer is then attached to the substrate using a press at a pressure p.sub.b which is .ltoreq.10 N/mm.sup.2 and also <p.sub.a, and a temperature T.sub.b .gtoreq.100.degree. C. This avoids concurrent application of high pressure and high temperature, which could cause formation of upset edges at the surface of the substrate.
    Type: Grant
    Filed: February 23, 1998
    Date of Patent: November 9, 1999
    Assignee: U.S. Philips Corporation
    Inventors: Jan W. Severin, Franciscus A. Meeuwsen
  • Patent number: 5798138
    Abstract: A method of selectively metallising an inner, electrically insulating surface S.sub.i of an open body (3), comprising the following steps:(a) providing a roller (2) having a resilient outer surface S.sub.o ;(b) providing a layer of a suitable wet ink on the surface S.sub.o, according to a given pattern;(c) causing the roller (2) to roll along the surface S.sub.i so as to impart a patterned layer of wet ink from the surface S.sub.o to the surface S.sub.i ;(d) allowing the patterned layer of wet ink imparted to the surface S.sub.i to dry;(e) selectively depositing metallic material upon the patterned layer of dry ink thus obtained.Such a method is particularly suited to the manufacture of a scan velocity modulator (1) for use in a cathode ray tube.
    Type: Grant
    Filed: March 12, 1997
    Date of Patent: August 25, 1998
    Assignee: U.S. Philips Corporation
    Inventors: Petrus E. J. Legierse, Jan W. Severin, Menno B. Kubbinga, Franciscus A. Meeuwsen, Antonius F. P. M. Van Veggel
  • Patent number: 4988672
    Abstract: A superconductive thin layer of an oxidic material is manufactured by contacting at least two starting substtances with each other, after which diffusion and a chemical reaction in the solid state occur by means of increasing the temperature, while forming the superconductive thin layer.
    Type: Grant
    Filed: February 6, 1990
    Date of Patent: January 29, 1991
    Assignee: U.S. Philips Corporation
    Inventors: Jan W. Severin, Gijsbertus De With, Dagobert M. De Leeuw, Cornelis A. H. A. Mutsaers
  • Patent number: 4965249
    Abstract: A method of manufacturing a wire of superconducting oxidic material, in which a preform is used, which includes dispersions of a superconducting material and of a non-superconducting material in a binder or which includes dispersions of non-superconducting materials in a binder, in which latter case the materials can react while forming a superconducting compound, in which the preform is extruded to a wire, the binder is baked out and the wire is sintered.
    Type: Grant
    Filed: September 23, 1988
    Date of Patent: October 23, 1990
    Assignee: U.S. Philips Corporation
    Inventors: Gijsbertus De With, Jan W. Severin
  • Patent number: 4943559
    Abstract: A temperature sensor comprises a thin layer of material the composition of which varies gradually over the layer thickness. The material is superconductive below a critical temperature the value of which depends on the composition of the material. The layer is connected, by means of electrodes to an electronic circuit for supplying current to the sensor and processing a temperature-dependent signal produced by the sensor.
    Type: Grant
    Filed: February 27, 1989
    Date of Patent: July 24, 1990
    Assignee: U.S. Philips Corporation
    Inventors: Jan W. Severin, Gijsbertus De With