Company Filing History:
Years Active: 1985-1986
Title: Innovations by Inventor Axel Hoppe
Introduction
Axel Hoppe, an innovative inventor based in Bad Harzburg, Germany, has made significant contributions to the field of materials science, particularly in the processing of valve metals. With three patents to his name, Hoppe’s work focuses on enhancing the properties and applications of high-surface area valve metal powders.
Latest Patents
One of Axel Hoppe’s notable inventions includes a process for improving the flowability and increasing the bulk density of high-surface area valve metal powders. This process involves the addition of finely divided extraneous metal oxides in quantities of up to 5000 ppm, relative to the quantity of metal, prior to the powder-metallurgical processing of the valve metal powder.
Another significant patent addresses the surface treatment of valve metals such as niobium and tantalum. This invention outlines a process where these materials, in the form of agglomerated or non-agglomerated powders, thin foils, or molded articles, are heated to temperatures ranging from 300°C to 2,000°C under high vacuum or an inert gas atmosphere, in the presence of chalcogens or chalcogen compounds, excluding oxygen. This process is particularly relevant for the use of these metals as electrodes in electrolytic capacitors.
Career Highlights
Axel Hoppe is currently associated with Hermann C. Starck Berlin, a company known for its expertise in advanced materials. His contributions have greatly advanced the understanding and application of valve metals in various industrial contexts.
Collaborations
During his career, Hoppe has collaborated with notable colleagues such as Wolf-Wigand Albrecht and Uwe Papp. These collaborations have fostered innovation and allowed for the sharing of knowledge and expertise within the field of materials science.
Conclusion
Axel Hoppe's inventions and patents illustrate a profound commitment to advancing technology in the processing of valve metals. His work not only enhances the functionality of materials but also paves the way for further innovations in their applications. As he continues to innovate, his contributions hold promise for future advancements in various industries.