1
Fritz Aldinger, Richard Keilberth, Waltraud Werdecker: Combination of AlN-Y.sub.2 O.sub.3 heat conductive ceramic substrate and electronic component. W C Heraeus, Frishuaf Holtz Goodman & Woodward, May 27, 1986: US04591537 (65 worldwide citation)

A heat conductive ceramic substrate for semiconductor circuits, comprising polycrystalline aluminum nitride of high density containing as an additive boron nitride or oxides of calcium, magnesium, aluminum, titanium, zirconium, chrome, silicon, and/or rare earth metals. The boron nitride additive co ...


2
Fritz Aldinger, Richard Keilberth, Waltraud Werdecker: Low-contamination AlN crucible for monocrystal pulling and method. W C Heraeus, Frishauf Holtz Goodman & Woodward, May 28, 1985: US04519966 (35 worldwide citation)

A low contamination crucible for pulling monocrystals of Group III and Group V elements of the Periodic Table, comprising particularly aluminum nitride with an additive of boron nitride or a rare earth oxide. The additive concentration is up to 5% by weight, but preferably 0.5% to 3% by weight. The ...


3
Fritz Aldinger, Albrecht Bischoff, Richard Keilberth, Franz Sperner: Electrode connecting cable for cardiac pacemaker. Heraeus Quarschmelze, Frishauf Holtz Goodman & Woodward, April 30, 1985: US04514589 (28 worldwide citation)

A cable for connecting a cardiac pacemaker to an electrode inserted in the heart through the blood stream utilizes a die-clad conductor or a number ofthem, especially several die-clad strands forming a twisted conductor of the stranded type, enclosed in a covering tube of a synthetic elastomer. The ...


4
Richard Keilberth, David F Lupton: Process for the manufacture of a metallic composite wire. W C Heraeus, Felfe & Lynch, July 14, 1992: US05129572 (11 worldwide citation)

A rod made of a hard material is inserted into a pipe made of a relatively soft material, and a two-element arrangement having an intermediate size is obtained by hot-rolling and drawing. In these steps, the cross section is reduced by at least 50%. Subsequently, another pipe of the soft material is ...