Patents by Inventor Robert W. Necoechea

Robert W. Necoechea has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Rigid-diaphragm transducer with plural coils
    Patent number: 4354066
    Abstract: A rigid surface transducer of the electroacoustic type more commonly referred to as an audio speaker. The transducer comprises an improved diaphragm and driver configuration and improved excitation modes. The improved features employ a rigid diaphragm which is driven in a coherent linear type motion.
    Type: Grant
    Filed: September 15, 1980
    Date of Patent: October 12, 1982
    Inventor: Robert W. Necoechea