DE2517180C3
(en)
*
|
1975-04-18 |
1979-04-19 |
Fa. Hermann C. Starck Berlin, 1000 Berlin |
Process for the continuous production of fine, high-capacity earth acid metal powder for electrolytic capacitors
|
US4113479A
(en)
*
|
1976-02-27 |
1978-09-12 |
Amax Inc. |
Vacuum smelting process for producing ferrotungsten
|
ES2020131A6
(en)
*
|
1989-06-26 |
1991-07-16 |
Cabot Corp |
Powders and products of tantalum, niobium and their alloys
|
US5242481A
(en)
*
|
1989-06-26 |
1993-09-07 |
Cabot Corporation |
Method of making powders and products of tantalum and niobium
|
US6165623A
(en)
*
|
1996-11-07 |
2000-12-26 |
Cabot Corporation |
Niobium powders and niobium electrolytic capacitors
|
US6051326A
(en)
*
|
1997-04-26 |
2000-04-18 |
Cabot Corporation |
Valve metal compositions and method
|
US6051044A
(en)
|
1998-05-04 |
2000-04-18 |
Cabot Corporation |
Nitrided niobium powders and niobium electrolytic capacitors
|
EP2055412B1
(en)
*
|
1998-05-06 |
2012-08-22 |
H.C. Starck GmbH |
Niobium or tantalum based powder produced by the reduction of the oxides with a gaseous metal
|
US6171363B1
(en)
*
|
1998-05-06 |
2001-01-09 |
H. C. Starck, Inc. |
Method for producing tantallum/niobium metal powders by the reduction of their oxides with gaseous magnesium
|
DE19831280A1
(en)
*
|
1998-07-13 |
2000-01-20 |
Starck H C Gmbh Co Kg |
Acidic earth metal, specifically tantalum or niobium, powder for use, e.g., in capacitor production is produced by two-stage reduction of the pentoxide using hydrogen as the first stage reducing agent for initial suboxide formation
|
US6416730B1
(en)
*
|
1998-09-16 |
2002-07-09 |
Cabot Corporation |
Methods to partially reduce a niobium metal oxide oxygen reduced niobium oxides
|
US6391275B1
(en)
*
|
1998-09-16 |
2002-05-21 |
Cabot Corporation |
Methods to partially reduce a niobium metal oxide and oxygen reduced niobium oxides
|
US6462934B2
(en)
|
1998-09-16 |
2002-10-08 |
Cabot Corporation |
Methods to partially reduce a niobium metal oxide and oxygen reduced niobium oxides
|
DE19847012A1
(en)
*
|
1998-10-13 |
2000-04-20 |
Starck H C Gmbh Co Kg |
Niobium powder and process for its manufacture
|
US6348113B1
(en)
*
|
1998-11-25 |
2002-02-19 |
Cabot Corporation |
High purity tantalum, products containing the same, and methods of making the same
|
WO2000049633A1
(en)
*
|
1999-02-16 |
2000-08-24 |
Showa Denko K.K. |
Niobium powder, niobium sintered body, capacitor comprised of the sintered body, and method for manufacturing the capacitor
|
KR20010113845A
(en)
|
1999-03-19 |
2001-12-28 |
마싸 앤 피네간 |
Making Niobium and Other Metal Powders by Milling
|
US6375704B1
(en)
*
|
1999-05-12 |
2002-04-23 |
Cabot Corporation |
High capacitance niobium powders and electrolytic capacitor anodes
|
US6576099B2
(en)
|
2000-03-23 |
2003-06-10 |
Cabot Corporation |
Oxygen reduced niobium oxides
|
AU2001296213A1
(en)
|
2000-05-22 |
2001-12-24 |
Cabot Corporation |
High purity niobium and products containing the same, and methods of making the same
|
US6849104B2
(en)
*
|
2000-10-10 |
2005-02-01 |
H. C. Starck Inc. |
Metalothermic reduction of refractory metal oxides
|
DE60123102T2
(en)
*
|
2000-11-06 |
2006-12-21 |
Cabot Corp., Boston |
MODIFIED OXYGEN-REDUCED VALVE METAL OXIDES
|
US7655214B2
(en)
*
|
2003-02-26 |
2010-02-02 |
Cabot Corporation |
Phase formation of oxygen reduced valve metal oxides and granulation methods
|
US7445679B2
(en)
*
|
2003-05-16 |
2008-11-04 |
Cabot Corporation |
Controlled oxygen addition for metal material
|
WO2004103906A2
(en)
*
|
2003-05-19 |
2004-12-02 |
Cabot Corporation |
Methods of making a niobium metal oxide and oxygen reduced niobium oxides
|
US7354472B2
(en)
*
|
2004-06-21 |
2008-04-08 |
H.C. Starck Inc. |
Metalothermic reduction of refractory metal oxides
|
US7431751B2
(en)
*
|
2004-09-29 |
2008-10-07 |
H.C. Starck Inc. |
Magnesium removal from magnesium reduced metal powders
|
US20080105082A1
(en)
*
|
2004-09-29 |
2008-05-08 |
Shekhter Leonid N |
Magnesium Removal From Magnesium Reduced Metal Powders
|
US7594937B2
(en)
*
|
2004-11-29 |
2009-09-29 |
Showa Denko K.K. |
Porous anode body for solid electrolytic capacitor, production method thereof and solid electrolytic capacitor
|
US7099143B1
(en)
*
|
2005-05-24 |
2006-08-29 |
Avx Corporation |
Wet electrolytic capacitors
|
US7511943B2
(en)
*
|
2006-03-09 |
2009-03-31 |
Avx Corporation |
Wet electrolytic capacitor containing a cathode coating
|
US7480130B2
(en)
*
|
2006-03-09 |
2009-01-20 |
Avx Corporation |
Wet electrolytic capacitor
|
US7460356B2
(en)
*
|
2007-03-20 |
2008-12-02 |
Avx Corporation |
Neutral electrolyte for a wet electrolytic capacitor
|
US7649730B2
(en)
*
|
2007-03-20 |
2010-01-19 |
Avx Corporation |
Wet electrolytic capacitor containing a plurality of thin powder-formed anodes
|
US7554792B2
(en)
*
|
2007-03-20 |
2009-06-30 |
Avx Corporation |
Cathode coating for a wet electrolytic capacitor
|
US8246903B2
(en)
*
|
2008-09-09 |
2012-08-21 |
H.C. Starck Inc. |
Dynamic dehydriding of refractory metal powders
|
JP5010706B2
(en)
*
|
2010-04-01 |
2012-08-29 |
三井金属鉱業株式会社 |
Tantalum recovery method
|
RU2465097C1
(en)
*
|
2011-05-04 |
2012-10-27 |
Федеральное государственное бюджетное учреждение науки Институт химии и технологии редких элементов и минерального сырья им. И.В. Тананаева Кольского научного центра Российской академии наук (ИХТРЭМС КНЦ РАН) |
Method of producing tantalum powder
|
CN104439264B
(en)
*
|
2014-12-19 |
2017-01-04 |
九江有色金属冶炼有限公司 |
The preparation method of a kind of niobium bar and the niobium bar of preparation thereof
|