Company Filing History:
2 out of 164,197 
1 out of 2,636 
Years Active: 1993-2004
Title: Innovations of Richard Thomas Campbell
Introduction
Richard Thomas Campbell is a notable inventor based in Campbell, California. He holds a total of 3 patents that contribute significantly to the field of magnetic head sensors. His work focuses on enhancing the reliability and performance of these sensors through innovative methods.
Latest Patents
One of his latest patents is titled "Method of improving the reliability of magnetic head sensors by ion milling smoothing." This method involves smoothing the perturbations on the surface of a magnetic head slider by exposing it to an ion species generated from a defined source. The process includes several steps, where the surface is smoothed by a beam of incident radiation at an angle less than 90 degrees relative to a vertical axis. Additionally, to create a corrosion-resistant magnetic head slider, the smoothed surface is coated with a layer of amorphous carbon.
Another significant patent is the "Method of adjusting the flatness of a slider using selective plasma etching." This reactive ion etching (RIE) method alters the flatness of a slider by placing it within a RIE apparatus. The apparatus includes an electrode controlled by a bias power source, generating plasma from a gas mixture. The method allows for selective etching of materials, such as TiC within the Al O matrix of the slider substrate surface, at varying rates.
Career Highlights
Richard has worked with prominent companies in the technology sector, including IBM and Hitachi Global Storage Technologies Netherlands B.V. His experience in these organizations has allowed him to develop and refine his innovative techniques in magnetic head sensor technology.
Collaborations
Throughout his career, Richard has collaborated with talented individuals, including Yiping Hsiao and Richard Hsiao. These collaborations have contributed to the advancement of his inventions and the overall progress in the field.
Conclusion
Richard Thomas Campbell's contributions to the field of magnetic head sensors through his innovative patents demonstrate his expertise and commitment to advancing technology. His work continues to influence the industry and inspire future innovations.