Company Filing History:
Years Active: 1992
Title: Inventor John L. Grainger: Innovating Ferromagnetic Material Characterization
Introduction: John L. Grainger, based in Newport News, Virginia, is a notable inventor recognized for his contributions to the field of materials science. With a focus on ferromagnetic materials, his innovative ideas have led to the development of a significant patent that aids in the understanding and characterization of residual stress in such materials.
Latest Patents: Grainger holds a patent for a method of characterizing residual stress in ferromagnetic materials. This invention details a method and apparatus designed to distinguish between residual uniaxial stresses resulting from both positive (tension) and negative (compression) forces. Utilizing distinct magnetoacoustic (MAC) and a novel magnetoacoustic emission (MAE) measurement circuit, his patented technology incorporates a switch allowing for selective operation of these circuits, enhancing the assessment of material properties.
Career Highlights: Throughout his career, John L. Grainger has made significant strides in materials science through his innovative approaches. His work has not only contributed to academic knowledge but also offered practical applications in various industries that utilize ferromagnetic materials.
Collaborations: Grainger has collaborated with esteemed colleagues such as Min Namkung and Peter W. Kushnick. These partnerships have fostered an environment of innovation and have been pivotal in advancing research related to his patent.
Conclusion: John L. Grainger's contributions to the field of ferromagnetic materials, particularly through his patented method for characterizing residual stress, exemplify the impact of dedicated inventors in driving scientific progress. His work continues to influence materials science, paving the way for future innovations.