Patents by Inventor Johannes Petrus Van De Kamer

Johannes Petrus Van De Kamer 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).

  • Publication number: 20220095583
    Abstract: The present invention is in the field of a horse feeding device and a method of feeding a horse. The feeding device (100) allows for a controlled and typically in time limited uptake of feed by a horse, taking into account the natural behavior of the horse in this respect. It therewith reduces various physical disorders and improves mental well-being of the horse.
    Type: Application
    Filed: November 27, 2019
    Publication date: March 31, 2022
    Inventor: Johannes Petrus van de Kamer
  • Patent number: 10921678
    Abstract: The present invention is in the field of an electrophoretic device for switching between a transparent and non-transparent mode, the device having pixels, the pixels comprising a fluid and colored particles, and comprising various further elements, as well as uses thereof, in particular as a window blind and for signage.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: February 16, 2021
    Assignee: Elstar Dynamics Patents B.V.
    Inventor: Johannes Petrus van de Kamer
  • Publication number: 20190302564
    Abstract: The present invention is in the field of an electrophoretic device for switching between a transparent and non-transparent mode, the device having pixels, the pixels comprising a fluid and colored particles, and comprising various further elements, as well as uses thereof, in particular as a window blind and for signage.
    Type: Application
    Filed: May 15, 2017
    Publication date: October 3, 2019
    Inventor: Johannes Petrus van de Kamer
  • Patent number: 7800580
    Abstract: An electrophoretic display that is switchable between a grayscale updating mode and a monochrome updating mode. The monochrome updating mode provides for extreme pixel states only including black and white, whereas the grayscale updating mode provides for an intermediate grayscale pixel state. A suitably selected transition signal is applied when switching from the grayscale updating mode to the monochrome updating mode. The transition signal involves a drive pulse that serves to reduce the level of remnant DC voltage otherwise occurring in each pixel due to differences in the grayscale updating mode and the monochrome updating mode.
    Type: Grant
    Filed: February 24, 2005
    Date of Patent: September 21, 2010
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Mark Thomas Johnson, Guofu Zhou, Johannes Petrus Van De Kamer
  • Publication number: 20080224989
    Abstract: An electrophoretic display, in which a driving method is employed whereby a sequence of discrete picture potential differences in the form of a driving waveform is supplied for enabling the charged particles (6) of the display to occupy a position for displaying an image, the position being one of a number of positions between the electrodes (3, 4). The driving waveform consists of a sequence of image update signals including a picture potential difference, the image update signals being separated by dwell times, and the method includes the step of generating one or more shaking pulses during the dwell times. Such shaking pulses may be generated immediately after each image update signal or they may comprise regular shaking pulses generated at predetermined intervals along the waveform.
    Type: Application
    Filed: January 7, 2005
    Publication date: September 18, 2008
    Applicant: KONINKLIJKE PHILIPS ELECTRONIC, N.V.
    Inventors: Guofu Zhou, Mark Thomas Johnson, Neculai Ailenei, Johannes Petrus Van De Kamer, Peter Alexander Duine, Anthonie Hendrik Bergman