Company Filing History:
2 out of 164,271 
1 out of 1,327 
Years Active: 1997-1999
Title: The Innovations of Roger Morton Macfarlane
Introduction
Roger Morton Macfarlane is a notable inventor based in Menlo Park, California. He holds three patents that showcase his contributions to the field of technology and innovation. His work primarily focuses on light-emitting devices and holographic storage methods.
Latest Patents
One of his latest patents is a light-emitting device. This device generates radiant energy through a first electrode and a second electrode, which are spaced apart. A material, either a rare earth metal oxide or a rare earth metal halide, is disposed between these electrodes and emits radiant energy upon activation. Another significant patent is a method and device for holographic storage. This invention utilizes a two-photon process for writing to a holographic recording medium. It involves a photorefractive material doped with an excitation dopant selected from rare earth ions and an ionization dopant chosen from transition metal ions or rare earth ions.
Career Highlights
Throughout his career, Roger has worked with prominent companies such as IBM and SRI International. His experience in these organizations has contributed to his development as an inventor and innovator.
Collaborations
Roger has collaborated with notable individuals in his field, including James Anthony Misewich and Sanjay Sethi. These collaborations have likely enriched his work and expanded his innovative capabilities.
Conclusion
Roger Morton Macfarlane's contributions to technology through his patents and collaborations highlight his significant role as an inventor. His work continues to influence advancements in light-emitting devices and holographic storage methods.