Andover, MA, United States of America

Shepard D Johnson

USPTO Granted Patents = 20 


Average Co-Inventor Count = 4.9

ph-index = 11

Forward Citations = 367(Granted Patents)


Location History:

  • Arlington, MA (US) (1996)
  • Andover, MA (US) (1999 - 2014)

Company Filing History:


Years Active: 1996-2014

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20 patents (USPTO):Explore Patents

Title: Innovations of Shepard D. Johnson: A Pioneer in Laser Processing

Introduction: Shepard D. Johnson, based in Andover, MA, is an accomplished inventor known for his significant contributions to laser processing technologies. With an impressive portfolio of 20 patents, Johnson has consistently pushed the envelope in his field, developing methods that enhance precision and efficiency in multi-material device processing.

Latest Patents: Among his latest innovations, Johnson has developed groundbreaking methods and systems for thermal-based laser processing of multi-material devices. This invention focuses on locally processing microstructures formed on substrates, ensuring that electrical or physical characteristics remain unaffected during the process. By utilizing information from laser pulse interaction models, he generates pulsed laser beams that precisely irradiate specific areas without causing undesirable changes.

In addition to this, he has also introduced a method and system for high-speed, precise laser trimming. This technology employs pulse-shaped q-switched lasers to achieve high precision along defined trim paths for electrical elements, significantly reducing resistance drift post-trimming. The advanced laser parameters he utilizes are designed to deliver optimal performance while preventing microcracking, thus enhancing product reliability.

Career Highlights: Shepard D. Johnson's career has seen him work with prominent companies, including GSI Group Corporation and GSI Lumonics Corporation, where he has applied his expertise in laser technology to develop innovative solutions. His deep understanding of laser applications has made him a valuable asset in various projects and advancements within these organizations.

Collaborations: Throughout his career, Johnson has collaborated with esteemed colleagues, such as Jonathan S. Ehrmann and James J. Cordingley. Together, they have contributed to remarkable advancements in laser processing technology, underscoring the importance of teamwork in achieving significant innovations in the field.

Conclusion: Shepard D. Johnson stands out as a noteworthy inventor in the realm of laser processing technologies. With a solid track record of patents and collaborations, he exemplifies the spirit of innovation that drives advancements in engineering. His continuing work promises to enhance the capabilities and applications of laser systems, impacting various industries for years to come.

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