Company Filing History:
8 out of 114 
7 out of 833,002 Years Active: 1986-2001
Title: Innovations by Stephen E. Clark
Introduction
Stephen E. Clark is a notable inventor based in Norfolk, VA (US), recognized for his contributions to the field of piezoelectric technology. With a total of 15 patents to his name, Clark has made significant advancements in the manufacturing and application of piezoelectric actuators and sensors.
Latest Patents
Among his latest patents is an innovative apparatus for manufacturing multi-layered high deformation piezoelectric actuators and sensors. This method maximizes output and enhances the precision and efficiency of multi-layer actuators. The process involves automatically stacking individual layers of the actuators within press members before bonding them with a thermoplastic adhesive. Compressive force is applied while heat is transferred from a heating element to raise the temperature of the layers above the melting point of the adhesive. Once the temperature is decreased, the layers bond together, and the actuators are subsequently cooled and polarized.
Another notable invention is the piezoelectrically actuated shaver, which is designed to be small, lightweight, efficient, and quiet. This electric shaver utilizes one or more piezoelectric drivers mechanically coupled to a cutting blade. The cutting action is generated by the oscillation of the blade, which is electrically energized by a regenerative drive circuit. The shaver effectively shears hair shafts at their base through a perforated foil member, showcasing Clark's innovative approach to personal grooming technology.
Career Highlights
Stephen E. Clark has worked with various companies, including Face International Corporation, where he has applied his expertise in piezoelectric technology. His career is marked by a commitment to innovation and the development of practical applications for his inventions.
Collaborations
Throughout his career, Clark has collaborated with notable individuals such as Samuel A. Face, Jr. and Richard P. Bishop, contributing to the advancement of technology in his field.
Conclusion
Stephen E. Clark's work in piezoelectric technology has led to significant innovations that enhance both manufacturing processes and consumer products. His contributions continue to impact the industry and inspire future advancements in technology.