Daniel Qi Tan

US Patent:

7702077, Apr 20, 2010

Filed:

May 19, 2008

Appl. No.:

12/122832

Inventors:

Yang Cao - Niskayuna NY, US
Louis Paul Inzinna - Scotia NY, US
Richard Michael Roffers - Menomonee Falls WI, US
Daniel Qi Tan - Rexford NY, US
Mark E. Vermilyea - Niskayuna NY, US
Yun Zou - Clifton Park NY, US

Assignee:

General Electric Company - Niskayuna NY

International Classification:

H01J 35/06
H01J 35/00

US Classification:

378142, 378121

Abstract:

A modular insulator assembly for an x-ray tube includes an annular insulator having a cylindrical perimeter wall, the insulator constructed of an electrically insulative material. A wall member is fixedly attached to and extending beyond the cylindrical perimeter wall, and a first shield positioned adjacent to the wall member and having an end extending proximate a corner formed by the wall member and the insulator.

US Patent:

7783012, Aug 24, 2010

Filed:

Sep 15, 2008

Appl. No.:

12/210822

Inventors:

Yang Cao - Niskayuna NY, US
Daniel Qi Tan - Rexford NY, US
Richard Michael Roffers - Menomonee Falls WI, US
Carey Shawn Rogers - Brookfield WI, US

Assignee:

General Electric Company - Niskayuna NY

International Classification:

H01J 35/02

US Classification:

378139, 378118, 378121

Abstract:

An insulator for a vacuum tube is disclosed and includes an electrically insulative bulk material and a first antiferroelectric coating applied to a first portion of the bulk material.

US Patent:

7815820, Oct 19, 2010

Filed:

Oct 18, 2007

Appl. No.:

11/863831

Inventors:

Daniel Qi Tan - Rexford NY, US
Yang Cao - Niskayuna NY, US
Patricia Chapman Irwin - Altamont NY, US

Assignee:

General Electric Company - Niskayuna NY

International Classification:

H01B 1/02
H01B 1/04
H01B 1/12

US Classification:

2525181, 25251931, 25251933, 2525201, 2525202, 2525212, 252 6255, 2505151

Abstract:

An electromagnetic interference shielding composite is provided. The electromagnetic interference shielding composite comprises: a high permittivity polymer having a permittivity of at least about 5; a plurality of magnetic particles dispersed within the high permittivity polymer; and a plurality of dielectric particles dispersed within the high permittivity polymer. In another embodiment, an article comprising a device susceptible to electromagnetic radiation and a shielding material disposed to shield the device from electromagnetic radiation is provided. The shielding material comprises, a high permittivity polymer; a plurality of magnetic particles dispersed within the high permittivity polymer; and plurality of dielectric particles dispersed within the high permittivity polymer.

US Patent:

7852611, Dec 14, 2010

Filed:

Dec 18, 2007

Appl. No.:

11/958678

Inventors:

Daniel Qi Tan - Rexford NY, US

Assignee:

General Electric Company - Niskayuna NY

International Classification:

H01G 4/06

US Classification:

361313, 361311, 361312, 3613014, 3613211, 3613212

Abstract:

A film capacitor including a pair of electrodes having multiple pores is provided. The film capacitor includes a polymer film deposited upon each of the pair of electrodes to form a dielectric layer.

US Patent:

7923497, Apr 12, 2011

Filed:

Nov 23, 2005

Appl. No.:

11/286062

Inventors:

Daniel Qi Tan - Rexford NY, US
Yang Cao - Niskayuna NY, US
Patricia Chapman Irwin - Altamont NY, US
Venkat S. Venkataramani - Clifton Park NY, US

Assignee:

General Electric Company - Niskayuna NY

International Classification:

C08J 3/00

US Classification:

524394, 524544, 524403, 528 92, 528411

Abstract:

Disclosed herein is a composition comprising a composition comprising a polymeric material; and a ceramic antiferroelectric particle. Disclosed herein too is a method of tuning a dielectric constant of a composition comprising subjecting a composition comprising a polymeric material and a ceramic antiferroelectric particle to a biasing electric field; and changing the dielectric constant of the composition. Disclosed herein too is a method comprising blending a polymeric material with ceramic antiferroelectric particles to form a composition. Disclosed herein too is a method comprising blending a polymeric material with ceramic antiferroelectric particles to form a composition; applying an electrical field to the composition; and reorienting the ceramic antiferroelectric particles.

US Patent:

7989530, Aug 2, 2011

Filed:

Jul 25, 2008

Appl. No.:

12/179905

Inventors:

Daniel Qi Tan - Rexford NY, US
Patricia Chapman Irwin - Altamont NY, US
Yang Cao - Niskayuna NY, US
Venkat Subramaniam Venkataramani - Clifton Park NY, US

Assignee:

General Electric Company - Niskayuna NY

International Classification:

C08J 3/00

US Classification:

524394, 524544, 524403, 524436, 528 92, 528411

Abstract:

A nonlinear composition comprises a polymeric material and at least one ferroelectric, antiferroelectric, or paraelectric particle, wherein the composition has a permittivity greater than or equal to about 5. A method of making a nonlinear composition comprises combining a polymeric material, and at least one ferroelectric, antiferroelectric, or paraelectric particle. The composition has a permittivity greater than or equal to about 5.

US Patent:

8040642, Oct 18, 2011

Filed:

Apr 30, 2009

Appl. No.:

12/433058

Inventors:

Michael Andrew de Rooij - Sparks NV, US
Karim Younsi - Ballston Lake NY, US
Daniel Qi Tan - Niskayuna NY, US
Richard S. Zhang - Rexford NY, US

Assignee:

General Electric Company - Niskayuna NY

International Classification:

H02H 3/18

US Classification:

361 15, 361 86

Abstract:

A smart capacitor includes a main capacitor having at least one intelligence mechanism selected from a prognostics mechanism and a high speed protection mechanism integrated within the main capacitor. The at least one intelligence mechanism and the main capacitor are together configured to generate at least one type of output signal selected from long term induced failure mechanism signals and sudden capacitor failure condition signals in response to desired input signals.

US Patent:

8094431, Jan 10, 2012

Filed:

Mar 31, 2009

Appl. No.:

12/414949

Inventors:

Daniel Qi Tan - Rexford NY, US
Patricia Chapman Irwin - Altamont NY, US
George Theodore Dalakos - Niskayuna NY, US
Yang Cao - Niskayuna NY, US

Assignee:

General Electric Company - Niskayuna NY

International Classification:

H01G 4/06

US Classification:

361313, 361311, 361312, 361502, 361503

Abstract:

In one aspect of the present invention, a method for increasing the dielectric breakdown strength of a polymer is described. The method comprises providing the polymer and contacting a surface of the polymer in a reaction chamber with a gas plasma, under specified plasma conditions. The polymer is selected from the group consisting of a polymer having a glass transition temperature of at least about 150 C. , and a polymer composite comprising at least one inorganic constituent. The contact with the gas plasma is carried out for a period of time sufficient to incorporate additional chemical functionality into a surface region of the polymer film, to provide a treated polymer. Also provided are an article and method of manufacture.