This inventor holds 6 USPTO granted patents. Top assignees: USA as Represented by Secretary of the Navy, Other. Active years: 1976-1990.
Location History:
- Arlington, CA (US) (1976 - 1980)
- Leucadia, CA (US) (1984 - 1986)
- Milwaukee, WI (US) (1990)
Company Filing History:
5 out of 16,273 
1 out of 834,411 Years Active: 1976-1990
Title: Innovations of Donald J Adrian
Introduction
Donald J Adrian is a notable inventor based in Arlington, CA (US). He has made significant contributions to the field of technology, particularly in the areas of microwave heating and frequency generation. With a total of 6 patents to his name, Adrian's work showcases his innovative spirit and technical expertise.
Latest Patents
One of Adrian's latest patents is titled "Isostatic pressing with microwave heating and method for same." This invention involves an isostatic press that supplies heat to a workpiece using microwave energy. The method is designed for isostatically pressing powdered ceramic or metal materials, utilizing a pressure vessel and a fluid medium. The workpiece is prepared with a microwave coupler material and is immersed in an additional powdered insulator that is transparent to microwave energy. This innovative approach allows for efficient heating while keeping the surrounding insulator cool.
Another significant patent is the "Frequency generator with digitally controlled phase modulation." This frequency generator allows for precise control of phase modulation through a digital input. It employs a digital-to-analog converter (DAC) to produce an analog voltage output, which is then used in conjunction with an analog ramp signal generator. The output is processed through a voltage comparator network to create a digitally phase-controlled sine wave output, showcasing Adrian's ability to blend digital technology with analog systems.
Career Highlights
Throughout his career, Donald J Adrian has worked with various organizations, including the USA as represented by the Secretary of the Navy. His experience in these roles has contributed to his understanding of complex technological systems and has influenced his innovative designs.
Collaborations
Adrian has collaborated with notable individuals in his field, including Paul A Singer and Donald I Parsons. These partnerships have likely enriched his work and expanded the impact of his inventions.
Conclusion
Donald J Adrian's contributions to innovation, particularly in microwave heating and frequency generation, highlight his expertise and creativity as an inventor. His patents reflect a commitment to advancing technology and improving processes in various applications.