EM Design - Patents

Electromagnetic Engineering
Specializing in the design and fabrication of microwave components since 1971

EM Design - Electromagnetic Engineering and Consulting

Patents

NO 11,259,638	06/28/2007	High Power Absorbing Waveguide Termination for a Microwave Transmission Line	Inventor: Ray M. Johnson
Patent Pending	09/01/2004	Dual Mode Single Cavity Pulse Compressor and Method	Inventor: Ray M. Johnson
NO 6,407,646 B1	06/18/2002	Distributed Three Port Stacked Waveguide Circulator	Inventor: Ray M. Johnson
NO 5,765,835	06/16/1998	Waveguide Seal Assembly	Inventor: Ray M. Johnson
NO 4,626,791	12/02/1986	Microwave Detector	Inventors: Meldner, Heiner Cusson, Ronald Y. Johnson, Ray M.
NO 4,516,088	05/17/1985	Power Absorbing Termination for a Waveguide	Inventor: Ray M. Johnson
NO 3,725,628	04/03/1973	Microwave Applicator with Throughput Suppression Guides at Input and Output Ports	Inventor: Ray M. Johnson
NO 3,723,900	03/27/1973	Microwave Applicator with Time-Sharing of Magnetron Sources	Inventor: Ray M. Johnson
NO 3,716,688	02/13/1973	Reflector and Waveguide Applicator	Inventor: Ray M. Johnson
NO 3,715,555	02/06/1973	Circular Waveguide Microwave Applicator	Inventor: Ray M. Johnson
NO 3,697,894	10/10/1972	Waveguide Power Switch Having Alternately Closed Shorting Plates	Inventor: Ray M. Johnson
NO 3,688,068	08/29/1972	Continuous Microwave Heating or Cooking System and Method	Inventor: Ray M. Johnson
NO 3,673,370	06/27/1972	Microwave Applicator System with Cylindrical Resonant Cavity	Inventor: Ray M. Johnson
NO 3,665,142	05/23/1972	System for Applying Microwave Energy to a Lossy Cylindrical Object	Inventor: Ray M. Johnson
NO 3,632,945	01/04/1972	System and Method for Heating Material Employing Oversized Waveguide	Inventor: Ray M. Johnson
NO 3,597,567	08/03/1971	Microwave Applicator for Heating Continuous Web	Inventor: Ray M. Johnson
NO. 3,597,566	08/03/1971	Resonant Cavity Microwave Applicator	Inventors: Ray M. Johnson Franklin J. Smith
NO. 3,597,565	08/03/1971	Waveguide Applicator System and Method	Inventor: Ray M. Johnson

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