This inventor holds 4 USPTO granted patents and 1 published patent application. Top assignees: Tektronix, Inc., Other. Active years: 1981-1995.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Aloha, OR (US) (1981)
- Portland, OR (US) (1987 - 1995)
Company Filing History:
3 out of 2,758 
1 out of 834,513 Years Active: 1981-1995
Title: The Innovative Contributions of Donald P. Chitwood
Introduction
Donald P. Chitwood is a notable inventor based in Portland, OR (US). He has made significant contributions to the field of technology, particularly in ink jet printing and liquid crystal cell design. With a total of 4 patents to his name, Chitwood's work has had a lasting impact on the industry.
Latest Patents
Chitwood's latest patents include a method for modifying phase change ink jet printing heads. This innovative method involves applying a non-wetting material to the discharge surface of the ink jet head. The goal is to maintain an ink contact angle between about 80 degrees and 90 degrees, even after prolonged exposure to molten phase change inks. This ensures that the non-wetting coating does not chip or wear off during normal operation, allowing for accurate placement of ink drops without the issues of increased surface wetting and off-axis shooting.
Another significant patent is related to a liquid crystal cell and its method of assembly. This invention features a rigid glass substrate and a target substrate made of thin flexible material. The design ensures that the spacing between the flexible and rigid substrates is precisely maintained, enhancing the performance of the liquid crystal light valve.
Career Highlights
Throughout his career, Chitwood has worked with prominent companies, including Tektronix, Inc. His experience in these organizations has contributed to his expertise and innovative capabilities in the field.
Collaborations
Chitwood has collaborated with notable individuals such as Duane A. Haven and Michel L. Bayard. These partnerships have likely fostered a creative environment that has led to the development of his patents.
Conclusion
Donald P. Chitwood's contributions to technology through his patents demonstrate his innovative spirit and dedication to advancing the field. His work continues to influence the industry, showcasing the importance of creativity and collaboration in invention.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile