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Location History:
- Vancouver, WA (US) (1995 - 2011)
- Portland, OR (US) (1999 - 2019)
Company Filing History:
52 out of 27,394 
15 out of 9,638 
Years Active: 1995-2019
Title: Trudy L. Benjamin: A Pioneer in Ink Level Sensing and Transistor Technology
Introduction
Trudy L. Benjamin, based in Portland, OR, is a prolific inventor with an impressive portfolio of 67 patents. His innovations primarily focus on advancements in ink level sensing technologies and transistor design, contributing significantly to the fields of electronics and printing.
Latest Patents
Trudy has developed several noteworthy patents, including a method for ink level sensing, where a pre-charge voltage is applied to a sense capacitor to measure ink levels effectively. This method involves sharing charge between a sense capacitor and a reference capacitor, enabling precise determination of ink levels through a resistance measurement on an evaluation transistor.
Another significant patent features a transistor design with an innovative active channel region. In this design, the channel surrounds the drain and has a specified length to width ratio, which allows for enhanced performance characteristics compared to traditional designs.
Career Highlights
Throughout his career, Trudy has made significant contributions while working at prominent companies such as Hewlett-Packard Development Company, L.P. and Hewlett-Packard Company. His work has greatly influenced the development of technologies that improve efficiency and performance in printing and electronic devices.
Collaborations
Trudy has collaborated with esteemed colleagues, including James P. Axtell and Joseph M. Torgerson. These partnerships have fostered innovation, enabling groundbreaking advancements in the technologies they have worked on together.
Conclusion
With 67 patents to his name, Trudy L. Benjamin stands out as a key figure in the realm of innovation. His contributions to ink level sensing and transistor technology showcase his dedication to improving technology for various applications. As he continues to push the boundaries of research and development, his impact on the industry remains significant and inspiring.
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