Patents by Inventor Hubertus Reinfeld

Hubertus Reinfeld 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: 4728968
    Abstract: An arrangement of discharge openings in a printhead of a multi-color ink printer includes n discharge openings for ink droplets of a black color formed in a first vertical row and m discharge openings in each row for ink droplets of further fundamental colors forming further vertical rows. The discharge openings of each row have a spacing "a" and after a first pass of the write head across a recording medium, the recording medium is moved relative to the write head by at least half a print line height, or by half the spacing "a" of the discharge openings. The number of discharge openings n of the first row and the spacing "a" is selected so that characters can be represented in draft quality for a single pass of the write head, the characters being represented in near-letter quality by multiple passes of the write head.
    Type: Grant
    Filed: July 18, 1986
    Date of Patent: March 1, 1988
    Assignee: Siemens Aktiengesellschaft
    Inventors: Ruediger Hillmann, Artur Milbrandt, Hubertus Reinfeld, Emmeran Vollert