Company Filing History:
Years Active: 1997-1999
Title: Ralph E. Hopkins, III: Innovator in Micromechanical Sensors
Introduction
Ralph E. Hopkins, III is a notable inventor based in Brookline, MA, with a focus on micromechanical technologies. He holds 2 patents that contribute significantly to the field of force sensing and electrical engineering. His work is characterized by innovative solutions that address complex engineering challenges.
Latest Patents
One of his latest patents is titled "Trenches to reduce charging effects and to control out-of-plane." This invention discloses trenches that reduce or eliminate force and sensitivity associated with proof mass motion normal to the substrate due to voltage transients. The trenches enhance the separation between interleaved comb electrodes and the substrate, thereby reducing the comb lift to drive ratio. Typically, these trenches are formed directly below the interleaved comb electrodes, with a trench depth ranging from 6-10 microns, providing a comb electrode to substrate separation of approximately 8.5-12.5 microns.
Another significant patent is the "Micromechanical contact load force sensor for sensing magnitude." This force sensor comprises an array of capacitive load cells on a substrate, capable of sensing high loads on the order of 10^9 N/m^2. It effectively distributes the load across multiple cells while minimizing crosstalk between adjacent cells. This technology is particularly useful in biological and robotic applications.
Career Highlights
Ralph E. Hopkins, III is associated with The Charles Stark Draper Laboratory, Inc., where he applies his expertise in micromechanical systems. His contributions to the field have been recognized through his patents and the impact of his work on various applications.
Collaborations
He has collaborated with notable colleagues, including Christopher V. Trainor and Steve T. Cho, enhancing the innovative capacity of his projects through teamwork and shared expertise.
Conclusion
Ralph E. Hopkins, III is a distinguished inventor whose work in micromechanical sensors has paved the way for advancements in various technological fields. His patents reflect a commitment to innovation and problem-solving in engineering.