Company Filing History:
2 out of 5,313 
1 out of 832,843 Years Active: 2003-2010
Title: Mark R McCornack: Innovator in Disk Drive Technology
Introduction
Mark R McCornack is a notable inventor based in Los Gatos, CA (US). He has made significant contributions to the field of disk drive technology, holding a total of 3 patents. His innovative methods have advanced the way data is written and managed on disk drives.
Latest Patents
One of McCornack's latest patents involves a method for extracting repeatable phase error from a spindle motor back electromotive force (BEMF) signal to generate a servo write clock. This method enhances the process of writing servo data onto a disk by synchronizing the servo write clock with an adjusted BEMF signal. The servo data includes spiral seed patterns that facilitate the writing of concentric servo sectors to the disk.
Another significant patent addresses compensating for non-linear thermal expansion when writing spiral tracks to a disk. This method involves writing concentric reference tracks at various radial locations on the disk surface. By reading these reference tracks, position error signals are generated to adjust the velocity profile for writing spiral tracks, effectively compensating for disturbances caused by thermal expansion.
Career Highlights
Throughout his career, McCornack has worked with prominent companies, including Western Digital Technologies, Inc. His expertise in disk drive technology has positioned him as a key player in the industry.
Collaborations
McCornack has collaborated with talented individuals such as Roberto Alini and Quocdzung T Lam. Their combined efforts have contributed to advancements in disk drive technology.
Conclusion
Mark R McCornack's innovative work in disk drive technology has led to significant advancements in data writing methods. His patents reflect a deep understanding of the complexities involved in disk drive operations.