Christopher Dana Keener

Title: Christopher Dana Keener: Innovator in Magnetic Sensor Technology

Introduction

Christopher Dana Keener is a notable inventor based in San Jose, CA (US). He has made significant contributions to the field of magnetic sensor technology, holding a total of 5 patents. His work focuses on enhancing the stability and performance of magnetic sensors, which are crucial in various applications.

Latest Patents

One of his latest patents is titled "Scissor magnetic read sensor with shape enhanced soft magnetic side shield for improved stability." This invention features a scissor-type magnetic sensor that incorporates soft magnetic side shields designed to improve sensor stability. The unique structure of the side shields extends from the sensor's side and is constructed from a low coercivity soft magnetic material. This design ensures that the magnetization of the side shield layer remains oriented in a desired direction, parallel to the media-facing surface. The side shields consist of first and second magnetic layers with an antiparallel coupling layer sandwiched between them. Each magnetic layer has specific dimensions that are less than 10 times the intrinsic exchange length of the magnetic layer.

Another significant patent is focused on "Yield/quality improvement using calculated failure rate derived from multiple component level parameters." This method aims to enhance manufacturing yields by identifying performance parameters that affect subsequent process steps. It involves collecting data on individual performance parameters, creating a reference scale correlating these parameters with failure probabilities, and utilizing this information to improve the sorting and disposition of manufactured units.

Career Highlights

Christopher has worked with prominent companies in the technology sector, including IBM and Hitachi Global Storage Technologies Netherlands B.V. His experience in these organizations has allowed him to develop and refine his innovative ideas in magnetic sensor technology.

Collaborations

Throughout his career, Christopher has collaborated with notable professionals such as Frederick William Stukey, Jr. and Peter Cheng-I Fang. These collaborations have contributed to the advancement of his research and inventions.

Conclusion

Christopher Dana Keener is a distinguished inventor whose work in magnetic sensor technology has led to several impactful patents. His innovative approaches continue to influence the field and enhance manufacturing processes.