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Josua Loffelholz Patents |
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Inventor: Loffelholz; Josua
Address: Langelsheim, DE
No. of patents: 7
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 7090763 |
Process for the production of shaped articles of niobium or tantalum by electrochemical etching |
August 15, 2006 |
| Process for the production of shaped articles of niobium or tantalum by electrochemical etching of a niobium or tantalum sheet covered by a structured photoresist mask in an aqueous solution containing hydrofluoric acid, the etching being effected under electrochemical conditions und |
| 7066979 |
Valve metal powders and process for producing them |
June 27, 2006 |
| Process for producing a valve metal powder by producing a precursor of desired morphology, converting the precursor into an oxide of the valve metal, stabilizing the structure of the oxide by heat treatment and reducing the stabilized oxide while retaining the morphology. Valve metal |
| 6510044 |
Paste for producing sintered refractory metal layers, notably earth acid metal electrolytic capa |
January 21, 2003 |
| A paste is described for the production of sintered refractory metal layers, particularly for electrolytic capacitor anodes, consisting of 40 to 92% by weight of a refractory metal powder as a discrete phase, and of a continuous phase which substantially consists of organic compounds whi |
| 6238456 |
Tantalum powder, method for producing same powder and sintered anodes obtained from it |
May 29, 2001 |
| The present invention discloses a tantalum powder for capacitors and a method for making said tantalum powder wherein agglomerated tantalum powder is produced by means of thermal agglomeration of starting tantalum powders in the presence of hydrogen. |
| 6136062 |
Niobium powder and a process for the production of niobium and/or tantalum powders |
October 24, 2000 |
| The process comprises the reduction of niobium and/or tantalum oxides by means of alkaline earth metals and/or rare earth metals, wherein the first reduction stage is carried out as far as an average composition corresponding to (Nb, Ta)O.sub.x where x=0.5 to 1.5 and before the second |
| 5567832 |
Polymeric multinary azanes, methods for their preparation and their use |
October 22, 1996 |
| The present invention relates to polymeric multinary azanes built up from units of the general formula [E(NR.sup.1 R.sup.2).sub.a (NR.sup.3).sub.b/2 ], wherein E may be B,Al,Ga,In,Si,Ge,Ti, Zr, Hf,V,Nb,Ta,Cr,Mo or W and R.sup.1,R.sup.2,R.sup.3 may be H, C.sub.1 -C.sub.6 alkyl, vinyl or p |
| 5405982 |
Polymeric borosilazanes and aluminosilazanes, a process for their preparation and their use |
April 11, 1995 |
| The present invention relates to polymeric boro- and aluminosilazanes corresponding to the general formulaandwhereina=0-1whereinL means half a bridging --NR-group, or an organoamino (--NR) group, when L is attached to a silicon or aluminum atom, and wherein L means a hydrogen atom, half |
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