This inventor holds 2 USPTO granted patents and 1 published patent application. Top assignee: International Business Machines Corporation. Active years: 1984-2001.
Company Filing History:
Years Active: 1984-2001
Title: Innovations by Dennis C. Estabrooks
Introduction
Dennis C. Estabrooks is a notable inventor based in Longmont, Colorado. He has made significant contributions to the field of electrophotography, holding 2 patents that showcase his innovative spirit and technical expertise. His work primarily focuses on improving printing technologies, which have applications in various industries.
Latest Patents
One of Estabrooks' latest patents is titled "PQE for font vs. large dark patch." This invention provides an electrophotographic apparatus and method designed to reduce smearing on printed media. It achieves this by controlling the toner pile height of printed lines and characters. The method involves creating mask patterns that differentiate characters and lines from large patches, allowing for precise exposure modulation during printing.
Another significant patent is the "Automatic duplex document feeder." This invention features a document feeder that automatically inverts a duplexed original for copying the second side. The mechanism includes a turnaround roll at the exit of the copy station, which works in conjunction with rollers positioned above the document glass. These rollers are inclined to ensure proper alignment of the paper during the copying process.
Career Highlights
Dennis C. Estabrooks is currently employed at International Business Machines Corporation (IBM), where he continues to innovate and contribute to advancements in printing technology. His work has had a lasting impact on the efficiency and quality of printed materials.
Collaborations
Throughout his career, Estabrooks has collaborated with several talented individuals, including Jack Louis Zable and Nelson K. Arter. These collaborations have fostered a creative environment that encourages the development of groundbreaking technologies.
Conclusion
Dennis C. Estabrooks is a distinguished inventor whose contributions to electrophotography have significantly advanced printing technologies. His patents reflect a commitment to innovation and excellence in the field.