Patents by Inventor Paul L. M. Put

Paul L. M. Put 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 tape-like information carriers and a web-like intermediate carrier
    Patent number: 5872758
    Abstract: A method of manufacturing a prerecorded tape (9), the master taking the form of a helical pattern (13) on a cylinder (10). This cylinder (10) is rolled over a web-like intermediate carrier (1), the pattern (13) being replicated in strips (5) by a contact between the cylinder (10) and the intermediate carrier (1), which strips extend at an acute angle (.alpha.) relative to the longitudinal direction (3) of the intermediate carrier (1). The intermediate carrier (1) is cut along the strips (5) to form tapes (9).
    Type: Grant
    Filed: April 24, 1995
    Date of Patent: February 16, 1999
    Assignee: U.S. Philips Corporation
    Inventors: Paul L. M. Put, Henricus F. J. J. Van Tongeren, Marinus J. J. Dona, Petrus J. H. Van Dooren
  • Optical information carrier
    Patent number: 5790512
    Abstract: A method for manufacturing optical information carriers, in which a photoresist layer (20) on a master disc (5) is exposed by a radiation beam (19). The intensity of the radiation beam is controlled by a modulator (14) and a control device (10) in such a manner that the exposure dose has a constant predetermined value over the length of a recorded area, which value is independent of the length of the area.
    Type: Grant
    Filed: November 25, 1996
    Date of Patent: August 4, 1998
    Assignee: U.S. Philips Corporation
    Inventors: Paul L. M. Put, Albericus A. M. Hoevenaars
  • Method of maufacturing a master disc and an apparatus for carrying out the method
    Patent number: 5605782
    Abstract: A method for manufacturing optical information carriers, in which a photoresist layer (20) on a master disc (5) is exposed by a radiation beam (19). The intensity of the radiation beam is controlled by a modulator (14) and a control device (10) in such a manner that the exposure dose has a constant predetermined value over the length of a recorded area, which value is independent of the length of the area.
    Type: Grant
    Filed: December 22, 1994
    Date of Patent: February 25, 1997
    Assignee: U.S. Philips Corporation
    Inventors: Paul L. M. Put, Albericus A. M. Hoevenaars