Company Filing History:
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Years Active: 1982-2004
Title: The Innovations of William G. McChesney
Introduction
William G. McChesney is a notable inventor based in San Jose, California. He has made significant contributions to the field of magnetic recording and epitaxial growth technologies. With a total of 2 patents, his work has had a lasting impact on data storage solutions.
Latest Patents
One of McChesney's latest patents is for a magnetic recording medium with antiparallel coupled ferromagnetic films as the recording layer. This innovative medium utilizes a magnetic recording layer that consists of at least two ferromagnetic films with differing remanent magnetization-thickness (Mrt) values. These films are coupled antiparallel across a nonferromagnetic spacer film, predominantly influenced by the dipole field from the grains of the higher-Mrt ferromagnetic film. The design ensures that the magnetizations of the two ferromagnetic films remain antiparallel in their remanent magnetic states, optimizing the net remanent magnetization-thickness product of the recording layer.
Another significant patent by McChesney is for a holder for liquid phase epitaxial (LPE) growth. This holder is designed to eliminate mesas on the surface of the film during the growth process. It features two legs connected by a ring, which can hold one or two wafers back-to-back. The innovative structure prevents film formation from the liquid melt when the holder is withdrawn from the growth solution, thus eliminating the formation of mesas that occur when the film ruptures.
Career Highlights
Throughout his career, McChesney has worked with prominent companies such as Hitachi Global Storage Technologies and IBM. His experience in these organizations has allowed him to develop and refine his innovative technologies.
Collaborations
Some of McChesney's notable coworkers include Hoa Van Do and Mary Frances Doerner. Their collaborative efforts have contributed to the advancements in the technologies he has developed.
Conclusion
William G. McChesney's contributions to the fields of magnetic recording and epitaxial growth have established him as a significant figure in innovation. His patents reflect a deep understanding of technology and a commitment to advancing data storage solutions.