Patents Assigned to Nokis Corporation
  • METHOD AND APPARATUS FOR THERMOACOUSTIC COOLING
    Publication number: 20130312429
    Abstract: Apparatus comprising at least one transducer comprising a displacement component that is configured to move upon application of an electrical signal; a cavity in communication with the at least one transducer; and at least one thermodynamic member within the cavity configured to readily exchange heat with a cavity gas or fluid, wherein the transducer is configured to generate a standing wave within the cavity to transfer heat along the thermodynamic member.
    Type: Application
    Filed: February 25, 2011
    Publication date: November 28, 2013
    Applicant: Noki Corporation
    Inventors: Jean-Baptiste Greuet, Lars Cieslak
  • Energy saving driving circuit for piezoelectric motor
    Patent number: 7199503
    Abstract: In a method and a device according to the present invention, two piezo-elements are driven with two voltages having a phase difference. One of the piezo-elements is charged by an inductive step-up means to a voltage exceeding an available power supply voltage. Subsequently charge, i.e. energy is transferred from the one piezo-element to the other piezo-element by an inductive element. The same inductive element is used in an inductive step-up means and in the transfer of the charge between the two piezo-elements.
    Type: Grant
    Filed: June 10, 2005
    Date of Patent: April 3, 2007
    Assignee: Nokis Corporation
    Inventor: Mikko Ollila