Company Filing History:
Years Active: 1987
Title: The Innovations of Dennis R. McEfee
Introduction
Dennis R. McEfee is a notable inventor based in San Jose, California. He has made significant contributions to the field of data recording technology. His innovative work has led to the development of a unique patent that enhances the functionality of disk files.
Latest Patents
One of McEfee's key patents is titled "Expandable suspension for a read/write head in a disk file." This invention involves a suspension for an air-bearing slider in a data recording disk file. The design features an envelope that expands when pressurized air enters its interior. The envelope consists of a pair of flat flexible sheets, preferably made of polyimide, which are secured at their perimeters. Stiffeners are bonded to these sheets to provide necessary stiffness between the slider and the arm attached to the disk file actuator. The innovative design includes parallel strips on the polyimide sheets that function as hinges, allowing the envelope to expand in a manner similar to a four-bar linkage. This mechanism moves the slider toward the disk while maintaining the slider's air-bearing surface parallel to the data surface of the disk. Additionally, electrical conductors are formed on one of the polyimide sheets to connect the read/write transducer to the disk file's circuitry.
Career Highlights
Dennis R. McEfee is associated with the International Business Machines Corporation, commonly known as IBM. His work at IBM has allowed him to explore and develop cutting-edge technologies in data storage and retrieval.
Collaborations
Throughout his career, McEfee has collaborated with talented individuals such as Rishi Kant and Thomas F. Roth. These collaborations have contributed to the advancement of technology in their respective fields.
Conclusion
Dennis R. McEfee's innovative contributions to data recording technology exemplify the impact of inventive minds in the tech industry. His patent for an expandable suspension system showcases his ability to solve complex engineering challenges. McEfee's work continues to influence the development of advanced data storage solutions.