1
Lawrence W Kessler, Donald E Yuhas: Acoustic imaging system and method. Sonoscan, Kinzer Plyer Dorn & McEachran, May 21, 1985: US04518992 (33 worldwide citation)

An acoustic microscope or like acoustic imaging system includes an insonifier for insonifying an object with high frequency (over ten megahertz) acoustic waves, a scanner for scanning a high-energy light beam across a reflective interface surface coupled to the object, a photodetector to detect the ...


2
Donald E Yuhas, Carol L Vorres, David P Groppi, Jiri D Konicek: System of electronic laminates with improved registration properties. Allied Signal, Harold N Wells, Mary J Boldingh, Jay P Friedenson, September 27, 1994: US05350621 (25 worldwide citation)

Dimensionally stable laminates of epoxy resin reinforced with glass fibers have a coefficient of thermal expansion which matches that of copper, making possible copper foil covered laminates which provide improved registration in multilayer printed circuit boards. New glass fabric styles provide bal ...


3
Roger Y Leung, Stephen T Gonczy, Donald E Yuhas, David P Groppi: Fiber-reinforced glass composite for protecting polymeric substrates. Allied Signal, Harold N Wells, Gerhard H Fuchs, Mary Jo Boldingh, September 14, 1993: US05244720 (24 worldwide citation)

A protective layer for polymeric composite substrates comprises a fiber-reinforced glass composite having a refractory fiber in a matrix of a black glass ceramic having the empirical formula SiCxOy where x ranges from about 0.5 to about 2.0, preferably 0.9 to 1.6 and y ranges from about 0.5 to 3.0, ...


4
Jiri D Konicek, Donald E Yuhas: Copper foil laminate for protecting multilayer articles. AlliedSignal, Harold N Wells, Roger H Criss, April 30, 1996: US05512381 (11 worldwide citation)

A method for making multilayer laminates having at least one exposed layer of copper foil. The exposed layer of copper foil is covered with a adhesively attached protective metal sheet made of a copper prior to being laminated.


5
Donald E Yuhas, Carol L Vorres, David P Groppi, Jiri D Konicek: System of electronic laminates with improved registration properties. AlliedSignal, Harold N Wells, Roger H Criss, November 7, 1995: US05464658 (8 worldwide citation)

Dimensionally stable laminates of epoxy resin reinforced with glass fibers have a coefficient of thermal expansion which matches that of copper, making possible copper foil covered laminates which provide improved registration in multilayer printed circuit boards. New glass fabric styles provide bal ...


6
Donald E Yuhas: Methods and apparatus for monitoring a condition of a material. Industrial Measurement Systems, Hanley Flight and Zimmerman, June 1, 2010: US07726875 (6 worldwide citation)

Apparatus, methods, and articles of manufacture for monitoring a condition of a material are disclosed. In particular, the example apparatus, methods, and articles of manufacture emit a first acoustic signal into a wall of the tubular member having a first temperature value and obtain a first propag ...


7
Donald E Yuhas: Methods and apparatus for monitoring a condition of a material. Industrial Measurement Systems, Hanley Flight & Zimmerman, December 30, 2008: US07470056 (5 worldwide citation)

Apparatus, methods, and articles of manufacture for monitoring a condition of a cavity surface of an elongated member having a cavity therein. In particular, the example apparatus, methods, and articles of manufacture emit a first ultrasonic signal that propagates from a first surface of an elongate ...


8
Donald E Yuhas, Don G Walker Jr, Mark J Mutton: Methods and apparatus for measuring temperature and heat flux in a material using ultrasound. Hanley Flight and Zimmerman, September 4, 2012: US08256953 (3 worldwide citation)

Methods and apparatus for measuring heat flux in a material are disclosed. A disclosed example method involves emitting an acoustic signal into the material and determining a first propagation time associated with the propagation of the acoustic signal through the material. A first heat flux value i ...


9
Donald E Yuhas, James H Voth, Patrick Schneider, Keith H Foster: Advanced cable metrology system. 3M Innovative Properties Company, Melanie G Gover, March 13, 2007: US07191091

The present invention is a method for determining the center to center spacing of conductors in an insulated, multi-conductor, flat cable. The method comprising applying an X-ray field to the cable, detecting the X-ray field intensity that passes through the cable, obtaining a digitized output wavef ...


10
Donald E Yuhas, James H Voth, Patrick Schneider, Keith H Foster: Advanced cable metrology system. 3m Innovative Properties Company, June 1, 2006: US20060116852-A1

The present invention is a method for determining the center to center spacing of conductors in an insulated, multi-conductor, flat cable. The method comprising applying an X-ray field to the cable, detecting the X-ray field intensity that passes through the cable, obtaining a digitized output wavef ...