US Patent No: 7,727,372

Number of patents in Portfolio can not be more than 2000

Anodizing valve metals by self-adjusted current and power

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ALSO PUBLISHED AS: 20060196774
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Abstract

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A method for anodizing valve metal structures to a target formation voltage is described. The valve metal structures are placed in an anodizing electrolyte and connected to a power supply that generates a source voltage to at least one current limiting device. If at least two current limiting devices are used, they are in series with the valve metal structures with the one current limiting device connected to at least one structure. The valve metal structures are then subjected to a current that decreases over time, a formation voltage that increases over time to a level below the voltage from the power supply and a power level that is self-adjusted to a level that decreases excessive heating in the structure. The invention also includes the components for the method.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
GREATBATCH LTD.CLARENCE, NY595

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Goad, David Orchard Park, NY 12 38
Liu, Yanming Clarence Center, NY 55 642
Muffoletto, Barry Alden, NY 33 190
Nesselbeck, Neal Lockport, NY 13 78

Cited Art Landscape

Patent Info (Count) # Cites Year
 
ALTA GROUP, INC., THE (2)
5,185,075 Surface treated titanium/titanium alloy articles and process for producing 19 1990
5,211,832 Process for producing electrically impervious anodized films on valve metals and product thereof 7 1992
 
KEMET ELECTRONICS CORPORATION (2)
5,837,121 Method for anodizing valve metals 17 1997
6,267,861 Method of anodizing valve metals 9 2000
 
ALCAN INTERNATIONAL LIMITED (1)
4,859,288 Porous anodic aluminum oxide films 17 1988
 
CANON KABUSHIKI KAISHA (1)
5,503,730 Method for anodic oxidation 4 1995
 
GREATBATCH LTD. (1)
6,231,993 Anodized tantalum pellet for an electrolytic capacitor 21 1999
 
International Hardcoat, Inc. (1)
4,839,002 Method and capacitive discharge apparatus for aluminum anodizing 19 1987
 
MEDTRONIC, INC. (1)
6,802,951 Methods of anodizing valve metal anodes 20 2002
 
MITSUBISHI CHEMICAL CORPORATION (1)
6,368,485 Forming electrolyte for forming metal oxide coating film 32 2000
 
The United States of America as represented by the Secretary of the Air Force (1)
4,936,957 Thin film oxide dielectric structure and method 19 1988
 
WHATMAN INTERNATIONAL LIMITED (1)
4,687,551 Porous films and method of forming them 19 1985

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
AVX CORPORATION (3)
8,605,411 Abrasive blasted conductive polymer cathode for use in a wet electrolytic capacitor 0 2010
8,514,547 Volumetrically efficient wet electrolytic capacitor 0 2010
8,259,435 Hermetically sealed wet electrolytic capacitor 1 2010

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