Company Filing History:
Years Active: 1994-1995
Title: Wolfgang Wallnofer: Innovator in Piezoelectric Technology
Introduction
Wolfgang Wallnofer is a notable inventor based in Graz, Austria. He has made significant contributions to the field of piezoelectric technology, holding a total of 3 patents. His work focuses on developing advanced materials and processes that enhance the performance of piezoelectric devices.
Latest Patents
One of Wallnofer's latest patents is for a piezoelectric crystal element designed for surface acoustic wave applications. This innovation features a quartz substrate with at least one substantially planar quartz surface, which has an epitaxially grown layer of a quartz-isomorphous crystal. The total molecular formula for this crystal is ABO.sub.4, where A represents Al or Ga, and B stands for P or As. The quartz surface and the epitaxial layer are engineered to have approximately the same crystallographic orientation.
Another significant patent involves a hydrothermal process for growing large crystals or crystal layers. This method aims to produce large, high-quality crystals or crystal layers of me orthophosphate, particularly GaPO.sub.4 or AlPO.sub.4. The process introduces a seed plate of alpha-quartz (.alpha.-SiO.sub.2) into a nutrient solution, with fluoride ions (F.sup.-) added to facilitate the formation of the primary crystal layer on the quartz seed plate.
Career Highlights
Wolfgang Wallnofer is currently associated with AVL List GmbH, a company renowned for its expertise in combustion engines and measurement technology. His work at AVL has allowed him to push the boundaries of piezoelectric applications and contribute to advancements in the field.
Collaborations
Throughout his career, Wallnofer has collaborated with esteemed colleagues such as Peter W. Krempl and Gabriele Voborsky. These partnerships have fostered innovation and have been instrumental in the development of his patented technologies.
Conclusion
Wolfgang Wallnofer's contributions to piezoelectric technology exemplify his commitment to innovation and excellence. His patents reflect a deep understanding of materials science and engineering, positioning him as a key figure in his field.