Patents by Inventor Stephen T. C. Chen

Stephen T. C. Chen 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).

  • Microminiature electrical delay line utilizing thin film inductor array with magnetic enhancement and coupling
    Patent number: 4152679
    Abstract: A microminiature electrical delay line utilizes an m-derived filter formed by depositing a film of permalloy or other high permeability metal on a quartz or other dielectric substrate, then depositing a layer of quartz or other dielectric over the permalloy film, after which a plurality of microminiature thin film inductance coils are deposited on the dielectric layer and joined together electrically in series, a top layer of quartz or other dielectric then is deposited over the interconnected coils and a strip of permalloy or other high permeability metal is deposited over the top dielectric layer to extend across the coils, a gap being provided in the strip of permalloy at the central axis of each coil.
    Type: Grant
    Filed: November 14, 1977
    Date of Patent: May 1, 1979
    Assignee: Hull Corporation
    Inventor: Stephen T. C. Chen