Kemet Electronics Corporation

Medtronic, Inc.

Other

Medtronics, Inc.

Brian John Melody

John Tony Kinard

David Alexander Wheeler

Philip Michael Lessner

Albert Kennedy Harrington

Randolph Stephen Hahn

Joachim Hossick Schott

John Daniel Norton

Joachim Hossick-Schott

Daniel Francis Persico

Keith Lee Moore

Duane Earl Stenzinger

Mark Edward Viste

Erik Karlsen Reed

Qingping Chen

Chris Stolarski

Kim Pritchard

Phillip Michael Lessner

Peter J Fernstrom

Tsung-Yuan Su

Zhi Fang

Christian S Nielsen

Anthony W Rorvick

Terrance B Tripp

Veeriya Rajasekaran

Elisabeth Crittendon Key

Kimberly Lynn Pritchard

John Piper

John D Henley, Jr

Shelby J Poore

John D Henley

Guy Cornelius Scibenas Van Natta, Jr

Michael John Maich

Duane Earl Stenziner

Udaya Shankar Bhimaraja

A method of reforming a wet-tantalum capacitor includes providing a medical device comprising a wet-tantalum capacitor. The capacitor has a rated voltage and including a hydrated anodic deposit. The method further includes charging the capacitor to a voltage that is less than approximately seventy-five percent of the rated voltage and at least partially discharging the capacitor after the charging step. The charging step is performed at a sufficient voltage to dehydrate the anodic deposit while not significantly decreasing the service life of the capacitor.

Capacitor reformation method and apparatus

A method of making an electrolytic capacitor includes providing a first electrode that includes a metal substrate, a carbide layer, and a carbonaceous material. The metal substrate includes a metal selected from the group consisting of titanium, aluminum, tantalum, niobium, zirconium, silver, steel, and alloys and combinations thereof. The method further includes providing a second electrode and an electrolyte.

Method of producing a capacitor

Wet-tantalum reformation method and apparatus

A method of reforming a wet-tantalum capacitor is disclosed. The method comprises charging the capacitor to a voltage that is substantially less than one of a maximum and rated voltage for the capacitor. The method also comprises providing an open circuit condition and allowing the capacitor to at least partially discharge through leakage current.

Wet tantalum reformation method and apparatus

A capacitor comprising an aluminum anode and a dielectric layer comprising phosphate doped aluminum oxide and process for making the capacitor. The capacitor has a CV Product of at least 9 &#x3bc;F&#x2212;V/cmat 250 volts. Furthermore, the capacitor is formed by the process of: forming an aluminum plate; contacting the plate with an anodizing solution comprising glycerine, 0.1 to 1.0%, by weight, water and 0.01 to 0.5%, by weight, orthophosphate; applying a voltage to the aluminum plate and determining an initial current; maintaining the first voltage until a first measured current is no more than 50% of the initial current; increasing the voltage and redetermining the initial current; maintaining the increased voltage until a second measured current is no more than 50% of the redetermined initial current, and continuing the increasing of the voltage and maintaining the increased voltage until a final voltage is achieved.

Method of making a capacitor by anodizing aluminum foil in a glycerine-phosphate electrolyte without a pre-anodizing hydration step

An electrolyte solution for anodizing a metal and a capacitor comprising the anodized metal. The electrolyte comprises more than about 5%, by weight, and less than about 30%, by weight, water; about 0.1 to 20%, by weight, ionogen and an aprotic polar solvent. The ionogen comprises phosphoric acid and an alkanol amine in an amount, and ratio, sufficient to maintain a pH of about 4 to about 9.

Method of anodizing valve metal derived anode bodies and electrolyte therefore

A capacitor includes a container, a positive electrode, a negative electrode, and a fluid electrolyte. The positive electrode includes a metal substrate and an active material provided in contact with the metal substrate. The active material includes at least one of poly(ethylene 3,4-dioxythiophene) and a titanate.

Capacitor

A therapeutic medical device system comprising an electrolytic capacitor including an anode, cathode and an electrolyte. The anode is anodized in an electrolyte comprises an aqueous solution of alkanol amine, phosphoric acid and an organic solvent preferably defined by formula 1:CH&#x2014;(OCHCH)&#x2014;OCH&#x2003;&#x2003;Formula 1wherein m is an integer from 3 to 10.

Method for fabricating a medical device that includes a capacitor that does not require oxide reformation

An electrode for an electrolytic capacitor includes a substrate comprising titanium; a carbide layer adjacent the substrate; and a carbonaceous layer adjacent the carbide layer and including means for enhancing the capacitance of the electrode.

Capacitor and method for producing a capacitor

A capacitor comprising an aluminum anode and a dielectric layer comprising phosphate doped aluminum oxide and process for making the capacitor. Furthermore, the capacitor is formed by the process of: forming an aluminum plate; pre-hydrating the aluminum; contacting the plate with an anodizing solution comprising glycerine, 0.1 to 1.0%, by weight, water and 0.01 to 0.5%, by weight, orthophosphate; applying a voltage to the aluminum plate and determining an initial current; maintaining the first voltage until a first measured current is no more than 50% of the initial current; increasing the voltage and redetermining the initial current; maintaining the increased voltage until a second measured current is no more than 50% of the redetermined initial current, and continuing the increasing of the voltage and maintaining the increased voltage until a final voltage is achieved.

Capacitor containing aluminum anode foil anodized in low water content glycerine-phosphate electrolyte

A capacitor is provided which includes a plurality of electrodes and a fluid electrolyte provided to electrically associate the plurality of electrodes. One of the plurality of electrodes includes poly (ethylene 3,4-dioxythiophene) or a titanate.

Electrolytic capacitor

A method of protecting surface mount capacitors from moisture and oxygen corrosion by applying a thermally curable pre-coat resin to a portion of the terminals of a capacitor and encapsulating the capacitor element(s) with a protective resin. The pre-coat resin is substantially rigid at ambient temperatures and flexible at elevated temperatures and is preferably a lactone-containing epoxy resin. The pre-coat resin may be applied to a solder coating-free portion of the terminals by brush or wiper prior to encapsulating the capacitor element(s) with the protective resin.

Protecting resin-encapsulated components

The metal oxide surface coating of an anodized valve metal may be made conductive under certain conditions so that conductive coatings can be electrolytically deposited on the surface of the oxide. When a dry polar aprotic electrolyte solution is used at a reduced temperature and a relatively high field is applied, the oxide ceases to be insulative. The process is reversible, meaning that there is no permanent change in the oxide.

Method of passing electric current through highly resistive anodic oxide films

An electrolytic capacitor comprising an anode, cathode and an electrolyte. The electrolyte comprises an aqueous solution comprising a compound of formula 1:CH&#x2014;(OCHCH)&#x2014;OCHFormula 1wherein m is an integer from 3 to 10. The electrolyte also comprises an ionogen.

Electrolyte for electrolytic capacitor

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Greer, SC, United States of America

Brian John Melody