Company Filing History:
Years Active: 1978-1991
Title: Walter T. Murphy: Innovator in Magnetic Recording Technology
Introduction
Walter T. Murphy is a notable inventor based in Cuyahoga Falls, OH (US). He has made significant contributions to the field of magnetic recording technology, holding a total of 8 patents. His work has focused on developing advanced materials that enhance the performance of magnetic tapes used in various audio and video applications.
Latest Patents
Among his latest patents, Murphy has developed thermoplastic polyurethanes that exhibit improved binder properties for magnetic recording tapes. These tapes are essential for audio apparatus, video apparatus, and computers. The innovative binder he created contains magnetic particles that bond effectively to the substrate. This binder is the reaction product of a polyisocyanate and a blend of a hydroxyl-terminated polyester intermediate, along with a derivative of a bis-phenol A chain extender. The specific formula involves alkylene groups with 2 to 4 carbon atoms, with ethylene being the preferred choice.
Another significant patent involves electron-curable polyurethanes. These polyurethanes demonstrate enhanced dispersibility and improved magnetic pigment binder utility. This advancement results in superior magnetic tape suitable for a variety of applications. The key to this innovation lies in the oligomeric polyurethane that contains pendant carboxyl groups along its backbone chain.
Career Highlights
Walter T. Murphy has had a distinguished career, primarily associated with The B. F. Goodrich Company. His work has been instrumental in advancing the technology behind magnetic recording, making him a respected figure in the industry.
Collaborations
Throughout his career, Murphy has collaborated with notable colleagues, including Clifford D. Guiley, Jr. and Hsiungto S. Tseng. These partnerships have contributed to the successful development of his innovative technologies.
Conclusion
Walter T. Murphy's contributions to magnetic recording technology through his patents and collaborations have significantly impacted the industry. His innovative approaches continue to influence the development of advanced materials for audio and video applications.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.