Patents by Inventor Mika Suhonen

Mika Suhonen 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 AND APPARATUS FOR DETECTING ETHANOL
    Publication number: 20120046571
    Abstract: The present publication discloses a method for detecting ethanol, in which method the ethanol content of a person is measured. According to the invention, the ethanol content is measured from the person's skin, using a capacitive measurement method.
    Type: Application
    Filed: February 23, 2010
    Publication date: February 23, 2012
    Applicant: Teknologian tutkimuskeskus VTT
    Inventors: Timo Varpula, Aarne Oja, Heikki Seppa, Mika Suhonen
  • Micromechanical alternating and direct voltage reference apparatus
    Patent number: 6657442
    Abstract: An AC/DC voltage reference system has at least one micromechanically fabricated electrode pair having first and second electrodes facing each other so that the electrodes are disposed at a distance from each other, whereby at least one of the electrodes is movable against a spring force. An AC signal is applied over the electrodes to establish an electrostatic force at a frequency substantially higher than the effective mechanical resonant frequency of the movable electrode. The system further includes an apparatus for detecting the AC voltage applied between the electrodes, thus forming an AC voltage reference.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: December 2, 2003
    Assignee: Valtion teknillinen tutkimuskeskus
    Inventors: Heikki Seppä, Aarne Oja, Mika Suhonen