Patents by Inventor Geert Koops

Geert Koops 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).

  • Ink-jet recording medium
    Publication number: 20060181592
    Abstract: The present invention relates to a recording medium, in particular an ink-jet recording medium of photographic quality that has excellent ink absorption speed, good drying characteristics and a good image printing quality. According to the present invention, an ink-jet recording medium is provided, comprising a support and an ink-receiving layer which has an asymmetric membrane structure comprising a dense top layer adjacent to a microporous sublayer, said ink-receiving layer comprising at least one water-swellable polymer. The present invention is further directed to methods for obtaining such a medium.
    Type: Application
    Filed: January 26, 2006
    Publication date: August 17, 2006
    Applicant: Fuji Photo Film B.V.
    Inventors: Iskandar Gandasasmita, Andries van Es, Jan Bouwstra, Yoichiro Kamiyama, Yuzo Toda, Antonius Josephus Kemperman, Geert Koops
  • Side-lobe suppressing unit for a pulse radar apparatus
    Patent number: 4554548
    Abstract: In a pulse radar apparatus the receiver comprises a main transmission channel connected to a directional antenna and an interference canceller connected to said channel for selecting target returns obtained through the major lobe of the antenna radiation pattern. The canceller contains an auxiliary transmission channel connected to an omnidirectional antenna for the intermediate-frequency detection of target returns and of signals composed of noise and/or continuous-wave interference signals; a subtraction unit; and a phase- and amplitude-compensating network having two circuit arrangements, one for the in-phase output signal and one for the quadrature output signal of the auxiliary transmission channel for generating output signals for the subtraction unit. Each circuit arrangement consists of a first mixer connected to the subtraction unit and the auxiliary transmission channel, a filter connected to the first mixer, and a second mixer connected to the filter and the auxiliary transmission channel.
    Type: Grant
    Filed: September 23, 1982
    Date of Patent: November 19, 1985
    Assignee: Hollandse Signaalapparaten B.V.
    Inventors: Albert Brilman, Geert Koops
  • Coherent side-lobe suppressing unit for a pulse radar apparatus
    Patent number: 4119963
    Abstract: In a pulse radar apparatus the receiver is provided with a coherent side-lobe suppressing unit comprising:A. a first and a second transmission channel respectively for directional and omnidirectional reception of r.f. signals, each of said channels having a compression amplifier with the amplitude transfer characteristic y(t)={x(t)}.sup..alpha., where 0<.alpha.<1.B. a subtraction circuit and a phase and amplitude compensating network fed by the subtraction circuit and the second transmission channel to produce signals for the subtraction circuit, the latter signals being equal in phase and amplitude to the signals derived from the first transmission channel and applied to the subtraction circuit.
    Type: Grant
    Filed: March 30, 1977
    Date of Patent: October 10, 1978
    Assignee: Hollandse Signaalapparaten B.V.
    Inventors: Johan Martin Carol Zwarts, Geert Koops