Location History:
- Munich, DE (2002 - 2007)
- München, DE (2006 - 2007)
Company Filing History:
5 out of 224 
3 out of 32 
2 out of 756 
Years Active: 2002-2007
Title: Franz Kummer: Innovator in Nanocrystal Technology
Introduction
Franz Kummer is a distinguished inventor based in Munich, Germany. He holds a total of 11 patents that showcase his contributions to the field of nanotechnology and luminescent materials. His innovative work has significantly advanced the production and application of oxidic nanocrystals.
Latest Patents
One of Kummer's latest patents is an "Apparatus for producing oxidic nanocrystals." This invention involves a sophisticated apparatus designed to produce oxidic nanocrystals from metal organic compounds or volatile inorganic compounds. The apparatus includes a first vaporizer connected to a first carrier gas stream, which generates a first reactant gas stream. Additionally, a second vaporizer is linked to a second carrier gas stream to create a second reactant gas stream. These reactant gas streams are then combined in a heated reactor, where they are heated and reacted to yield unagglomerated oxidic nanocrystals with a mean particle size of up to 20 nanometers.
Another notable patent is the "Arrangement of luminescent materials, wavelength-converting casting compound and light source." This invention proposes a unique arrangement of luminescent materials that are excited by a radiation source. It utilizes a luminescent material with a Ce-activated garnet structure, where the first component contains elements such as Y, Lu, Sc, La, Gd, Sm, and Tb, while the second component includes elements like Al, Ga, and In. The invention emphasizes the mixing of various luminescent materials to enhance their effectiveness.
Career Highlights
Franz Kummer has worked with several prominent companies throughout his career. Notably, he has been associated with Patent-Treuhand-Gesellschaft für Elektrische Glühlampen mbH and Osram Opto Semiconductors GmbH & Co. OHG. His experience in these organizations has contributed to his expertise in the field of optics and semiconductor technology.
Collaborations
Kummer has collaborated with notable professionals in his field, including Andries Ellens and Franz Zwaschka. These collaborations have further enriched his work and expanded the impact of his inventions.
Conclusion
Franz Kummer's innovative contributions to nanocrystal technology and luminescent materials have established him as a key figure in his field. His patents reflect