This inventor holds 5 USPTO granted patents. Top assignee: Hitachi Global Storage Technologies Netherlands B.v.. Active years: 2007-2010.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2007-2010
Title: The Innovations of Dulip Ajantha Welipitiya
Introduction
Dulip Ajantha Welipitiya is a notable inventor based in Morgan Hill, CA (US). He has made significant contributions to the field of magnetoresistive sensors, holding a total of 5 patents. His work focuses on enhancing sensor performance through innovative techniques.
Latest Patents
One of his latest patents is a TMR sensor having an under-layer treated with nitrogen for increased magnetoresistance. This invention involves a tunnel junction TMR magnetoresistive sensor formed on layers that have nitrogen interspersed within them. The nitrogenation of these layers allows for very smooth and uniform surfaces, greatly improving sensor performance by providing a consistent barrier layer thickness. Another significant patent is for a GMR sensor having a capping layer treated with nitrogen for increased magnetoresistance. This magnetoresistive sensor features a Ta cap layer with nitrogen added in situ during deposition. The nitrogen in the cap layer is created by depositing a Ta cap layer in a sputter deposition chamber with a small amount of nitrogen in an Ar atmosphere. The resulting nitrogenated cap layer exhibits reduced specular scattering, leading to improved magnetic performance of the magnetoresistive sensor.
Career Highlights
Dulip Ajantha Welipitiya is currently employed at Hitachi Global Storage Technologies Netherlands B.V. His work at this company has allowed him to explore and develop advanced technologies in the field of magnetoresistive sensors.
Collaborations
Some of his notable coworkers include Thomas E. Shatz and Brian Rodrick York. Their collaboration has contributed to the advancement of innovative technologies in their field.
Conclusion
Dulip Ajantha Welipitiya's contributions to the field of magnetoresistive sensors demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of material science and engineering, paving the way for future advancements in sensor technology.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile