This inventor holds 2 USPTO granted patents. Top assignee: Read Rite Corporation. Active years: 2001-2002.
Company Filing History:
Years Active: 2001-2002
Title: Innovations of Durga I Ravipati
Introduction
Durga I Ravipati is a notable inventor based in Saratoga, CA (US). He has made significant contributions to the field of magnetic head technology, holding 2 patents to his name. His work focuses on enhancing the performance and efficiency of magnetic heads used in data storage devices.
Latest Patents
One of his latest patents is for a "Thin film magnetic head with self-aligned pole tips." This innovative magnetic head design features first and second pole tips that are separated by a nonmagnetic gap layer. The right and left side walls of both pole tips are vertically aligned, which substantially reduces side fringing flux. This design allows for the writing of data tracks with well-defined boundaries. The fabrication process begins with forming a stack of layers on a substrate, including a nonmagnetic layer sandwiched between the first pole tip layer and a sacrificial layer, preferably made of metal. A protective layer, such as alumina, is then deposited over the stack. After planarization and ion milling, the sacrificial layer is exposed and etched away, creating a volume of space above the gap layer. An inductive coil with associated dielectric layers is deposited above the first pole layer, followed by the second pole layer, resulting in the desired alignment of the pole tips.
Career Highlights
Durga I Ravipati is currently associated with Read Rite Corporation, where he continues to innovate in the field of magnetic technology. His work has been instrumental in advancing the capabilities of magnetic heads, which are critical components in data storage solutions.
Collaborations
He has collaborated with notable coworkers, including Yun-Lin Hsiao and Lien-Chang Wang, who have contributed to his research and development efforts.
Conclusion
Durga I Ravipati's contributions to magnetic head technology exemplify the spirit of innovation in the field of data storage. His patents reflect a commitment to enhancing performance and efficiency, making a lasting impact on the industry.