Xiaohong H Tang

US Patent:

20140036409, Feb 6, 2014

Filed:

Jan 16, 2013

Appl. No.:

13/743276

Inventors:

Thomas Marzano - East Amherst NY, US
Keith W. Seitz - Clarence Center NY, US
Steven W. Winn - Lancaster NY, US
Christine A. Frysz - Orchard Park NY, US
Richard L. Brendel - Carson City NV, US
Jason Woods - Carson City NV, US
Dominick J. Frustaci - Williamsville NY, US
Xiaohong Tang - Williamsville NY, US
William C. Thiebolt - Tonawanda NY, US

Assignee:

GREATBATCH LTD. - Clarence NY

International Classification:

H01G 4/35

US Classification:

361302

Abstract:

A co-connected hermetic feedthrough, feedthrough capacitor, and leadwire assembly includes a dielectric substrate with a via hole disposed through the dielectric substrate from a body fluid side to a device side. A conductive fill is disposed within the via forming a hermetic seal and is electrically conductive between the body fluid side and the device side. A feedthrough capacitor is attached to the dielectric substrate and includes a capacitor dielectric substrate, an unfilled capacitor via hole including an inner metallization, a set of capacitor active electrode plates electrically coupled to the inner metallization, an outer metallization disposed and a set of capacitor ground electrode plates electrically coupled to the outer metallization. A conductive leadwire is disposed within the unfilled capacitor via hole. An electrical joint connects the conductive fill, the capacitor inner metallization along with the capacitor active electrode plates and the conductive leadwire.

US Patent:

20130184796, Jul 18, 2013

Filed:

Jan 16, 2013

Appl. No.:

13/742781

Inventors:

Keith W. Seitz - Clarence Center NY, US
Robert A. Stevenson - Canyon Country CA, US
Xiaohong Tang - Williamsville NY, US
William C. Thiebolt - Tonawanda NY, US
Christine A. Frysz - Orchard Park NY, US
Richard L. Brendel - Carson City NV, US
Jason Woods - Carson City NV, US
Steven W. Winn - Lancaster NY, US
Dominick J. Frustaci - Williamsville NY, US
Buehl E. Truex - Glendora CA, US
Donald Hickel, Jr. - Scottsville NY, US

Assignee:

GREATBATCH LTD. - Clarence NY

International Classification:

A61N 1/05

US Classification:

607116

Abstract:

An elevated feedthrough is attachable to a top or a side of an active implantable medical device. The feedthrough includes a conductive ferrule and a dielectric substrate. The dielectric substrate is defined as comprising a body fluid side and a device side disposed within the conductive ferrule. The dielectric substrate includes a body fluid side elevated portion generally raised above the conductive ferrule. At least one via hole is disposed through the dielectric substrate from the body fluid side to the device side. A conductive fill is disposed within the at least one via hole forming a hermetic seal and electrically conductive between the body fluid side and the device side. A leadwire connection feature is on the body fluid side electrically coupled to the conductive fill and disposed adjacent to the elevated portion of the dielectric substrate.

US Patent:

20220384883, Dec 1, 2022

Filed:

Aug 5, 2022

Appl. No.:

17/817670

Inventors:

- Clarence NY, US
David Dianetti - Lancaster NY, US
Xiaohong Tang - Williamsville NY, US

International Classification:

H01M 50/155
H01M 50/10
H01M 50/116
H01M 50/147
H01M 50/172
H01M 50/545
H01M 50/159
H01M 50/117
H01M 50/548
H01M 50/528
H01M 50/559
H01G 4/236

Abstract:

A miniature electrochemical cell having a volume of less than 0.5 cc is described. The cell casing comprises an open-ended ceramic container having a via hole providing an electrically conductive pathway extending through the container. A metal lid closes the open-end of the container. An electrode assembly housed inside the casing comprises an anode current collector deposited on an inner surface of the ceramic container in contact with the electrically conductive pathway in the via hole. An anode active material contacts the current collector and a cathode active material contacts the metal lid. A separator is disposed between the anode and cathode active materials. That way, the electrically conductive pathway serves as a negative terminal, and the lid, electrically isolated from the conductive pathway by the ceramic container, serves as a positive terminal. The negative and positive terminals are configured for electrical connection to a load.

US Patent:

20220376290, Nov 24, 2022

Filed:

Aug 2, 2022

Appl. No.:

17/879347

Inventors:

- Clarence NY, US
Xiaohong Tang - Williamsville NY, US
Holly Noelle Moschiano - Williamsville NY, US
Biswa P. Das - Thousand Oaks CA, US
Brian P. Hohl - Clarence NY, US

International Classification:

H01M 10/052
H01M 10/0562
H01M 4/131
H01M 4/66
H01M 50/10
H01M 50/116
H01M 50/186
H01M 50/191
H01M 50/124

Abstract:

A method for providing a miniature electrochemical cell having a total volume that is less than 0.5 cc is described. The cell casing is formed by joining two ceramic casing halves together. One or both casing halves are machined from ceramic to provide a recess that is sized and shaped to contain the electrode assembly. The opposite polarity terminals are electrically conductive feedthroughs or pathways, such as of gold, and are formed by brazing gold into tapered via holes machined into one or both ceramic casing halves. The two ceramic casing halves are separated from each other by a metal interlayer, such as of gold, bonded to a thin film metallization layer, such as of titanium, that contacts an edge periphery of each ceramic casing half. A solid electrolyte of LiPON (LiPON) is used to activate the electrode assembly.

US Patent:

20230085958, Mar 23, 2023

Filed:

Sep 12, 2022

Appl. No.:

17/942229

Inventors:

- Clarence NY, US
Dallas J. Rensel - Sanborn NY, US
Brian P. Hohl - Clarence NY, US
Xiaohong Tang - Williamsville NY, US

International Classification:

C04B 41/51
A61N 1/375
C04B 41/88
C04B 41/45
C04B 41/00

Abstract:

A ceramic reinforced metal composite (CRMC) comprising a composition composite as an interpenetrating network of at least two interconnected composites is described. The interpenetrating networks comprise a ceramic matrix composite (CMC) and a metal matrix composite (MMC). The composition composite is particularly useful as an electrically conductive pathway extending through the ceramic body of a hermetically sealed component, for example, a feedthrough in an active implantable medical device (AIMD).

US Patent:

20210119189, Apr 22, 2021

Filed:

Oct 17, 2019

Appl. No.:

16/655286

Inventors:

- Clarence NY, US
David Dianetti - Lancaster NY, US
Xiaohong Tang - Williamsville NY, US

International Classification:

H01M 2/02
H01M 10/0525
H01M 2/04
H01M 2/10

Abstract:

A miniature electrochemical cell having a volume of less than 0.5 cc is described. The cell casing comprises an open-ended ceramic container having first and second via holes providing respective first and second electrically conductive pathways extending through the container. A metal lid secured to the open-end of the container by a gold seal provides the cell casing. An electrode assembly housed inside the casing comprises a cathode active material deposited on an inner surface of the ceramic container in contact with a current collector in electrical continuity with one of the conductive pathways. A solid electrolyte, preferably of LiPON (LiPON), is deposited on the cathode active material followed by an anode active material in contact with the other conductive pathway. The first and second conductive pathways can comprise platinum or gold. That way, the first and second conductive pathways serve as negative and positive terminals for the cell. The negative and positive terminals are configured for electrical connection to a load.

US Patent:

20210111382, Apr 15, 2021

Filed:

Oct 15, 2019

Appl. No.:

16/653247

Inventors:

- Clarence NY, US
David Dianetti - Lancaster NY, US
Xiaohong Tang - Williamsville NY, US

International Classification:

H01M 2/04
H01M 2/06
H01M 2/02

Abstract:

A miniature electrochemical cell having a volume of less than 0.5 cc is described. The cell casing comprises an open-ended ceramic container having a via hole providing an electrically conductive pathway extending through the container. A metal lid closes the open-end of the container. An electrode assembly housed inside the casing comprises an anode current collector deposited on an inner surface of the ceramic container in contact with the electrically conductive pathway in the via hole. An anode active material contacts the current collector and a cathode active material contacts the metal lid. A separator is disposed between the anode and cathode active materials. That way, the electrically conductive pathway serves as a negative terminal, and the lid, electrically isolated from the conductive pathway by the ceramic container, serves as a positive terminal. The negative and positive terminals are configured for electrical connection to a load.

US Patent:

20200303763, Sep 24, 2020

Filed:

Mar 9, 2020

Appl. No.:

16/812492

Inventors:

- Clarence NY, US
Xiaohong Tang - Williamsville NY, US
Brian P. Hohl - Clarence NY, US
Biswa P. Das - Thousand Oaks CA, US
Holly Noelle Moschiano - Williamsville NY, US

International Classification:

H01M 10/052
H01M 10/0562
H01M 2/02
H01M 2/06
H01M 4/66
H01M 4/131

Abstract:

A miniature electrochemical cell having a total volume that is less than 0.5 cc is described. The cell casing is formed by joining two ceramic casing halves together. One or both casing halves are machined from ceramic to provide a recess that is sized and shaped to contain the electrode assembly. The opposite polarity terminals are electrically conductive feedthroughs or pathways, such as of gold, and are formed by brazing gold into tapered via holes machined into one or both ceramic casing halves. The two ceramic casing halves are separated from each other by a metal interlayer, such as of gold, bonded to a thin film metallization layer, such as of titanium, that contacts an edge periphery of each ceramic casing half. A solid electrolyte of LiPON (LiPON) is used to activate the electrode assembly.