Company Filing History:
Years Active: 1979-1981
Title: Innovations of Richard R. Pettijohn
Introduction
Richard R. Pettijohn is an accomplished inventor based in Portola Valley, California. He holds a total of 2 patents that showcase his contributions to the fields of photographic image enhancement and semiconductor technology. His innovative methods have significantly impacted the way images are processed and how semiconductor surfaces are texturized.
Latest Patents
One of his notable patents is the "Photographic image enhancement method employing photoluminescence." This method enhances photographic images of low optical density by utilizing a luminescent system. The system includes photoluminescent material and a photon source to excite the material to luminescence. The process produces a photoluminescent replica of the original image, which is then exposed to photons to achieve enhancement. This method can be applied to various photographic processes, including those using silver halide and photoconductive materials.
Another significant patent is the "Method of controlled surface texturization of crystalline semiconductor." This method involves forming a microscopically texturized surface on crystalline semiconductor materials using a radioactive source for uniform irradiation. The technique allows for the creation of a controllable size distribution of tetrahedra on the semiconductor surface, enhancing its properties for various applications.
Career Highlights
Richard R. Pettijohn is associated with SRI International, a renowned research institution known for its innovative contributions across various fields. His work at SRI International has allowed him to explore and develop groundbreaking technologies that have practical applications in both photography and semiconductor industries.
Collaborations
Throughout his career, Richard has collaborated with notable colleagues, including Malcolm Thackray and Thomas J. Magee. These collaborations have fostered an environment of innovation and have contributed to the successful development of his patented technologies.
Conclusion
Richard R. Pettijohn's contributions to innovation in photographic image enhancement and semiconductor technology highlight his role as a significant inventor. His patents reflect a commitment to advancing technology and improving processes in these fields.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.