David Maxfield

Title: David Maxfield: Innovator in Inkjet Technology

Introduction

David Maxfield, a prolific inventor based in Philomath, Oregon, holds an impressive portfolio of 24 patents. His work primarily focuses on advancements in inkjet technology and circuit design, contributing to the innovations developed at his workplace, Hewlett-Packard Development Company, L.P.

Latest Patents

Among his notable patents, two stand out due to their innovative approaches:

1. **Detecting a Drive Bubble Formation and Collapse** – This patent presents an inventive method for measuring an inkjet nozzle's performance by utilizing impedance measurements to detect both the presence and collapse of a drive bubble post-firing command.

2. **Switches for Bypass Capacitors** – This invention involves a control circuit for a bypass capacitor featuring an advanced switch assembly. The design allows for a two-stage activation process, first connecting and then later disconnecting the bypass capacitor, optimizing its charging efficiency through different resistance paths.

Career Highlights

Maxfield’s tenure at Hewlett-Packard has been marked by significant contributions to technology that enhance product reliability and performance. His expertise in the field has not only resulted in many patents but also positions him as a key player in the development of cutting-edge inkjet and electronic technologies.

Collaborations

Throughout his career, David has worked closely with talented colleagues, including Andrew L. Van Brocklin and Eric T. Martin. Their collaborations have fostered an environment of innovation and creativity that continues to drive advancements at Hewlett-Packard.

Conclusion

David Maxfield exemplifies the spirit of innovation through his substantial contributions to the field of technology. With an impressive number of patents under his name, his work stands as a testament to the importance of research and collaboration in driving forward new ideas and solutions in the industry.