Joy Roy

Title: Innovations by Joy Roy in Ink Jet Technology

Introduction

Joy Roy is an accomplished inventor based in Tigard, Oregon, known for her significant contributions to ink jet technology. With a total of seven patents to her name, she has developed innovative methods that enhance print quality and efficiency in ink jet printing systems.

Latest Patents

Among her latest patents is a method of operating an ink jet to reduce print quality degradation. This invention involves a drop-on-demand ink jet print head that features an ink pressure chamber connected to a source of ink and an ink drop ejecting orifice. An acoustic driver generates a pressure wave in the ink, facilitating the ejection of ink droplets while minimizing print quality degradation caused by air bubble growth. Another notable patent focuses on achieving high print quality and speed in ink jet printing. This method utilizes bipolar drive pulses to optimize drop shape and minimize speed variations, allowing for the use of various inks, including phase change inks.

Career Highlights

Joy Roy has worked with notable companies, including Tektronix, Inc., where she honed her skills in ink jet technology. Her innovative approaches have significantly impacted the field, leading to advancements in print quality and efficiency.

Collaborations

Throughout her career, Joy has collaborated with esteemed colleagues, including Douglas M. Stanley and Ronald L. Adams. These partnerships have fostered a creative environment that has led to groundbreaking innovations in the industry.

Conclusion

Joy Roy's contributions to ink jet technology exemplify her dedication to innovation and excellence. Her patents reflect a deep understanding of the complexities of ink jet printing, making her a prominent figure in the field.