Company Filing History:
2 out of 2,636 
1 out of 987 
1 out of 5,313 
Years Active: 2009-2020
Title: David Ernest Call: Innovator in Magnetic Recording Technology
Introduction
David Ernest Call is a notable inventor based in Folsom, CA (US). He has made significant contributions to the field of magnetic recording technology, holding a total of 4 patents. His work focuses on improving the efficiency and effectiveness of magnetic recording sliders.
Latest Patents
One of his latest patents is titled "Parallel testing of magnetic recording sliders." This invention includes a magnetic recording slider test system that features a host to collect test results and initiate concurrent testing of multiple magnetic recording sliders. Each processing unit is designed to test at least one element of a respective magnetic recording slider. The system allows for the concurrent testing of these elements, enhancing the overall testing process. Another significant patent is "Structures and methods for parallel testing of multiple read heads in two-dimensional magnetic recording sliders." This invention discloses methods for parallel biasing and testing of two or more read heads within a TDMR slider. It addresses the interactions between closely spaced heads, which may exhibit various magnetic and capacitive interactions not seen in single read head configurations.
Career Highlights
David has worked with prominent companies in the industry, including Hitachi Global Storage Technologies and HGST Netherlands. His experience in these organizations has contributed to his expertise in magnetic recording technologies.
Collaborations
Throughout his career, David has collaborated with talented individuals such as Hardayal Singh Gill and Ciaran Avram Fox. These collaborations have likely enriched his work and led to innovative advancements in the field.
Conclusion
David Ernest Call is a distinguished inventor whose work in magnetic recording technology has led to multiple patents and significant advancements in the industry. His contributions continue to influence the development of more efficient magnetic recording systems.