Company Filing History:
Years Active: 1985
Title: The Innovations of John F Donlan in Magnetic Recording Technology
Introduction
John F Donlan, an innovative inventor based in West St. Paul, Minnesota, has made significant contributions to the field of magnetic recording technology. With a focus on enhancing the quality and functionality of magnetic recording mediums, Donlan's work stands out in the industry.
Latest Patents
John F Donlan is credited with a noteworthy patent titled "Magnetic recording medium having opaque polyester film base." This invention features a biaxially-oriented polyester film base that includes carbon black beads ranging from 50 to 500 nm in diameter, ensuring the medium is substantially free of beads or agglomerates larger than 5 micrometers. The incorporation of these beads provides the necessary opacity, a key requirement for the flexible recording disks used in diskettes. The innovative design may be implemented as a single-layer film with evenly dispersed beads, or as a multi-layer structure that includes a central layer containing the carbon black beads and two surface layers free from them.
Career Highlights
Throughout his career, John F Donlan has been associated with the Minnesota Mining and Manufacturing Company, where he has driven advancements in magnetic recording technologies. His patent exemplifies his expertise and commitment to innovation within this domain, showcasing his ability to marry practicality with cutting-edge research.
Collaborations
Working alongside prominent coworkers such as Brenda L Renalls and Douglas G Pedrotty, Donlan has contributed to a collaborative environment that encourages innovation and the sharing of ideas. These collaborations have further enriched his work and led to the successful development of various technologies in the field.
Conclusion
In summary, John F Donlan's contributions to magnetic recording technology through his patent demonstrate his capacity for innovation within a competitive industry. His work at Minnesota Mining and Manufacturing Company and collaborations with fellow inventors highlight the importance of teamwork and creativity in driving technological advancements. John F Donlan remains a pivotal figure in the landscape of magnetic recording mediums.