Company Filing History:
Years Active: 2009-2010
Title: Innovations of Knut Riisnæs
Introduction
Knut Riisnæs is a notable inventor based in Oslo, Norway. He has made significant contributions to the field of sensor technology, particularly in the area of fingerprint detection and measurement of conductive surfaces. With a total of 2 patents, his work has implications for security and structural integrity.
Latest Patents
Knut's latest patents include "Live finger detection by four-point measurement of complex impedance." This invention involves a method and sensor assembly that determines the condition of a structure, specifically for confirming if a measured fingerprint is on a live finger. The sensor comprises a first pair of current supply electrodes coupled to a current source, providing an electrical current to the skin. It also includes at least two pickup electrodes positioned relative to the current supply electrodes, with a system for measuring voltage and comparing characteristics to determine surface conditions.
Another significant patent is the "Sensor for measurement for wet and dry fingers." This device performs measurements on an at least partially conductive surface and includes conductive structures at or below the sensor surface. The sensor device features a stimulation or current sink electrode and sensor elements coupled to interrogation electrodes for measuring impedance.
Career Highlights
Knut Riisnæs is associated with Idex ASA, a company known for its innovative biometric solutions. His work at Idex ASA has allowed him to develop cutting-edge technologies that enhance the accuracy and reliability of fingerprint detection systems.
Collaborations
Knut has collaborated with notable colleagues such as Ørjan G Martinsen and Jon Nysæther. Their combined expertise has contributed to the advancement of sensor technologies and their applications in various fields.
Conclusion
Knut Riisnæs is a prominent inventor whose work in sensor technology has paved the way for advancements in fingerprint detection and measurement systems. His innovative patents reflect his commitment to enhancing security and structural integrity through technology.