Robert J Johnson

Title: Robert J. Johnson: Innovator in Heat Assisted Magnetic Recording

Introduction

Robert J. Johnson is a notable inventor based in San Jose, California. With a total of two patents to his name, he has significantly contributed to the field of heat assisted magnetic recording (HAMR). His work paves the way for advancements in data storage technology.

Latest Patents

Johnson's most recent patents address critical technological challenges in HAMR systems. The first patent, titled "Systems and methods for measuring ambient and laser temperature in heat assisted magnetic recording," provides a comprehensive system that includes a slider with a write head and a laser diode. This system is designed to measure voltage drop and current through the laser diode, utilizing calibration data to accurately ascertain temperature.

The second patent, "Disk drive comprising laser transmission line optimized for heat assisted magnetic recording," features a disk drive that effectively utilizes a laser to heat the disk during writing operations. The design of the transmission line is crucial, as it is engineered to achieve a specific pulse shape for optical power output by the laser, thereby enhancing the writing process.

Career Highlights

Robert J. Johnson currently works at Western Digital Technologies, Inc., a company recognized for its innovative data storage solutions. His career at Western Digital has allowed him to focus on the intricacies of HAMR technology, leading to his groundbreaking patents that contribute to the company's competitive edge in the market.

Collaborations

Throughout his professional journey, Johnson has collaborated with fellow inventor Alexander Krichevsky. Together, they have worked on various projects and innovations within the scope of data storage technologies, further pushing the boundaries of what is possible in the field.

Conclusion

In summary, Robert J. Johnson is a distinguished inventor whose contributions to heat assisted magnetic recording have had a lasting impact on data storage solutions. His collaboration with talented individuals and his innovative patents mark him as a key figure in this ever-evolving industry.