Company Filing History:
Years Active: 1976-1977
Title: Ashok Frank Mayadas: Innovator in Magnetoresistive Technology
Introduction
Ashok Frank Mayadas is a notable inventor based in Somers, NY (US). He has made significant contributions to the field of magnetoresistive technology, holding 2 patents that showcase his innovative approach to sensor design and magnetic domain detection.
Latest Patents
One of his latest patents involves a magnetoresistive sandwich that includes a sensor electrically parallel with a magnetoresistive permalloy film. This design features a substrate coated with a separating layer made of titanium or a similar high resistivity, conductive material. A soft biasing layer, composed of materials such as permalloy, or a hard biasing material like cobalt chromium, is deposited on the separating layer to complete the sandwich structure. All layers are coextensive in outline, formed by a single etching step.
Another significant patent focuses on the detection of magnetic domains using tunnel junctions. This invention utilizes tunnel junctions to detect magnetic domains, such as bubble domains, by observing the change in Fermi level of one or both electrodes due to the magnetic field of the domain. The shift in the Fermi level alters the tunnel barrier height, resulting in a change in tunneling conductance that can be detected as a current or voltage change. The design allows for the detection of submicron domains, enhancing the sensitivity of magnetic domain detection.
Career Highlights
Ashok Frank Mayadas is currently associated with the International Business Machines Corporation (IBM), where he continues to advance his research and development in magnetoresistive technologies. His work has contributed to the evolution of sensor technologies that are crucial in various applications.
Collaborations
Some of his notable coworkers include Christopher H Bajorek and Robert D Hempstead, who have collaborated with him on various projects within the field.
Conclusion
Ashok Frank Mayadas stands out as an influential inventor in the realm of magnetoresistive technology. His innovative patents and contributions to IBM highlight his commitment to advancing the field and enhancing the capabilities of magnetic domain detection.