Location History:
- Escondido, CA (US) (1988)
- San Marcos, CA (US) (1991)
- Loveland, CO (US) (1992 - 1993)
Company Filing History:
Years Active: 1988-1993
Title: The Innovative Contributions of William D. Kappele
Introduction
William D. Kappele, an accomplished inventor based in Loveland, Colorado, holds an impressive portfolio of eight patents. His work primarily focuses on enhancing thermal ink-jet printing technology, particularly for Hewlett-Packard Company, where he serves as a key contributor.
Latest Patents
Among his latest innovations are two notable patents. The first is a specific dye set for thermal ink-jet printing on paper, which includes Acid Yellow 23, Acid Red 52, and Acid Blue 9. This unique combination yields true, vivid colors on specially coated paper, representing a significant advancement over previous dye sets intended for 180 dpi thermal ink-jet printers like the Hewlett-Packard PaintJet printer. The second patent pertains to a thermal ink-jet print device featuring a phase change cooling mechanism. This device utilizes a phase change material, either solid or fluid, strategically positioned near the printhead to effectively absorb heat energy. This innovative cooling approach occurs at a temperature lower than what would lead to unacceptable print quality while matching the rate of heat energy input.
Career Highlights
Kappele's career has been marked by significant contributions to the field of thermal ink-jet technology. His patents reflect a deep understanding of the challenges associated with print quality and performance. Through his work at Hewlett-Packard, he has played a vital role in the continuous improvement and innovation of printing solutions.
Collaborations
Throughout his career, Kappele has collaborated closely with key colleagues such as John L. Stoffel, Jr. and Ronald Albert Askeland. These partnerships have fostered a creative environment that encourages the development of innovative solutions in printing technology.
Conclusion
William D. Kappele exemplifies the spirit of innovation within the realm of thermal ink-jet printing technology. His eight patents highlight his commitment to improving print quality and efficiency, showcasing the impact of his work on the industry. Through collaboration and dedication, Kappele continues to contribute to advancements that shape the future of printing.