Patents by Inventor Johannes VAN Ruler

Johannes VAN Ruler 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).

  • Method of manufacturing an optical fiber comprising a coating of a metal
    Patent number: 4609437
    Abstract: Optical fibres consisting of a synthetic resin at least on their outer circumference are continuously provided with a metal coating by electroplating. For this purpose the synthetic resin coating is made electrically conductive, for example, by continuous electroless metallization.
    Type: Grant
    Filed: March 12, 1985
    Date of Patent: September 2, 1986
    Assignee: U.S. Philips Corporation
    Inventors: Johan C. W. Kruishoop, Petrus E. J. Legierse, Johannes Van Ruler, Dirk J. Broer
  • Method of manufacturing an article of a synthetic resin which has a metal layer
    Patent number: 4420506
    Abstract: Method of manufacturing an article of synthetic resin which has an electroless provided metal layer in which a mixture of monomeric acrylates and an N-substituted pyrrolidon compound is polymerized, the resulting article is treated with an aromic carboxylic acid substituted with one or more hydroxy groups and/or an amino group, or derivatives thereof, and a metal layer is then provided on the thus treated article by electroless deposition.
    Type: Grant
    Filed: September 17, 1982
    Date of Patent: December 13, 1983
    Assignee: U.S. Philips Corporation
    Inventors: Johan W. A. Nelissen, Johannes J. Ponjee, Petrus E. J. Legierse, Johannes Van Ruler
  • Method of manufacturing printed circuit boards
    Patent number: 4085285
    Abstract: Manufacture of photosensitive material by a dispersion of particles of semiconducting metal oxide having a charge sign opposite to that of the substrate in the dispersion agent, which dispersion is provided on the substrate surface and adhered thereto. In a similar manner walls of a hole for electrical through-connections are made photosensitive as a pretreatment for metal-plating.
    Type: Grant
    Filed: August 6, 1976
    Date of Patent: April 18, 1978
    Assignee: U.S. Philips Corporation
    Inventors: Gerardus Johannes Meinardus Lippits, Petrus Johannes Janssen, Henricus Antonius Debruijn, Johannes VAN Ruler
  • Method of finishing a workpiece of a non-conducting material, particularly diamond, by means of spark erosion
    Patent number: 4013863
    Abstract: Spark erosion is applied to a non-conducting workpiece while employing a dielectric liquid comprising an emulsion of an aqueous solution of an electrolyte in an organic liquid and a surfactant.
    Type: Grant
    Filed: November 3, 1975
    Date of Patent: March 22, 1977
    Assignee: U.S. Philips Corporation
    Inventors: Cornelis van Osenbruggen, Johannes VAN Ruler, Theodorus Maria Berendina Schoenmakers