David Charles Johnson

Title: Innovations of David Charles Johnson

Introduction

David Charles Johnson is a notable inventor based in Eugene, Oregon. He has made significant contributions to the field of materials science, particularly in the development of low thermal conductivity materials. With a total of 5 patents to his name, Johnson's work has implications for various technological applications.

Latest Patents

One of Johnson's latest patents is titled "Low thermal conductivity misfit layer compounds with layer to layer disorder." This invention comprises compositions that include an alternating plurality of ordered layers of a first composition MX and a second composition TX. In this context, M can be one of Sn, Pb, Sb, Bi, or a rare earth metal, while X is S or Se, and T is Ti, V, Cr, Nb, or Ta. The ordered layers are designed to conform to a substrate, with each layer having a common thickness and/or composition.

Another significant patent is "Superlattice and turbostratically disordered thermoelectric materials." This invention involves layered materials that exhibit surprisingly low thermal conductivities. The method used to produce these materials involves a modulated elemental reactants approach, resulting in a plurality of layers of selected materials, such as tungsten diselenide, that are stacked in a substantially random arrangement.

Career Highlights

Throughout his career, David Charles Johnson has worked with various institutions, including the State of Oregon and the University of Oregon. His research and innovations have contributed to advancements in thermoelectric materials and their applications.

Collaborations

Johnson has collaborated with notable colleagues, including Ngoc T Nguyen and Marc Hornbostel, enhancing the scope and impact of his research.

Conclusion

David Charles Johnson's innovative work in low thermal conductivity materials showcases his expertise and dedication to advancing materials science. His patents reflect a commitment to developing technologies that can lead to significant improvements in various applications.