Jun Nancy Zhang

US Patent:

7666254, Feb 23, 2010

Filed:

Aug 20, 2007

Appl. No.:

11/894373

Inventors:

Francisco Javier Romero Amaya - Peachtree City GA, US
Jun Zhang - Getzville NY, US

Assignee:

Osmose, Inc. - Buffalo NY

International Classification:

A01N 59/14
A01N 53/00

US Classification:

106 183, 106 1505, 106 1829, 106 1835, 424657, 424658, 424659, 424660, 427297, 427397, 4285371, 514730, 514772

Abstract:

A wood preservation composition comprising an unexpectedly efficacious combination of a boron compound and bifenthrin is disclosed. A method of preserving wood, as well as the preserved wood, are also disclosed.

US Patent:

8497673, Jul 30, 2013

Filed:

Sep 28, 2009

Appl. No.:

12/567961

Inventors:

Tsili Wang - Katy TX, US
Jun Zhang - Katy TX, US
Jing Li - Sugar Land TX, US
Stephen D Bonner - Sugar Land TX, US

Assignee:

Schlumberger Technology Corporation - Sugar Land TX

International Classification:

G01P 3/48
G01P 3/54

US Classification:

324166, 324339, 324342, 324338, 343756, 343719, 343861

Abstract:

A logging while drilling tool includes a directional resistivity antenna and an antenna shield having. The shield has at least one slot having at least one electrically open end formed therein. The antenna shield may include a base portion and a plurality of spaced apart fingers extending away from the base portion such that the finger ends are electrically isolated from the tool body and from one another. The antenna shield may alternatively include a plurality of spaced apart plates that are electrically isolated from the tool body and from one another. These antenna shields have been found to provide suitable physical protection for sensitive antenna components while at the same time being substantially transparent to both z-mode and x-mode electromagnetic waves.

US Patent:

20100322533, Dec 23, 2010

Filed:

Jun 18, 2009

Appl. No.:

12/486954

Inventors:

Jun Zhang - Houston TX, US
Paul Boonen - Katy TX, US
Zhipeng Liu - Houston TX, US

Assignee:

SMITH INTERNATIONAL, INC. - Houston TX

International Classification:

G06K 9/40
G06F 17/14

US Classification:

382275, 708404

Abstract:

A method for removing cyclic noise from a borehole image includes transforming the image into the frequency domain using a two-dimensional (2-D) Fourier Transform, removing cyclic noise components from the transformed image, and inverse transforming the image back into the spatial domain using an inverse 2-D Fourier Transform. The cyclic noise component may also be isolated by subtracting the corrected image from the original image or by removing all non-cyclic noise components from the transformed image prior to inverse transforming. Removal of the cyclic noise from a borehole image tends to enable the identification of borehole features and provide for improved accuracy in formation parameter evaluation. Evaluation of the cyclic noise component may also enable the source of the noise to be identified and mitigated.

US Patent:

20110038559, Feb 17, 2011

Filed:

Oct 26, 2010

Appl. No.:

12/911851

Inventors:

Junichi Sugiura - Houston TX, US
Jun Zhang - Houston TX, US
Paul Boonen - Katy TX, US
Zhipeng Liu - Houston TX, US

Assignee:

SMITH INTERNATIONAL, INC. - Houston TX

International Classification:

G06K 9/40
G06K 9/36

US Classification:

382275, 382280

Abstract:

A method for removing cyclic noise from a borehole image includes transforming the image into the frequency domain using a two-dimensional (2-D) transform (e.g., using a discrete cosine transform). The cyclic noise components (peaks) are removed from the transformed image which is then inverse transformed back into the spatial domain using an inverse 2-D transform to obtain a corrected image. An automated method enables the cyclic peaks to be identified and removed from the borehole image via downhole processing.

US Patent:

20110073368, Mar 31, 2011

Filed:

Sep 29, 2009

Appl. No.:

12/568847

Inventors:

Wei Han - Sugar Land TX, US
Jun Zhang - Katy TX, US
Paul Boonen - Katy TX, US

Assignee:

SMITH INTERNATIONAL, INC. - Houston TX

International Classification:

E21B 47/14
G01V 1/46

US Classification:

175 40, 367 25

Abstract:

A downhole measurement tool includes at least one regular receiver and at least one reference receiver externally deployed on a tool body. The reference receiver is configured to be acoustically isolated from the borehole, for example, via an isolation structure including a high-impedance cap and a low-impedance gap. The reference receiver may be deployed in a linear array with the regular receiver(s) and may be substantially identical to the regular receiver(s) such that it has substantially the same sensitivity to tool mode signals and internal drilling noise as do the regular receivers. Received waveforms may be processed so as to remove tool mode arrivals and/or drilling noise.

US Patent:

20130173164, Jul 4, 2013

Filed:

Dec 29, 2011

Appl. No.:

13/339856

Inventors:

Jun Zhang - Katy TX, US

International Classification:

G01V 3/08
G01V 3/38
G06F 19/00

US Classification:

702 6, 324346

Abstract:

A downhole magnetic ranging tool includes first and second axially spaced magnetic sources deployed in a downhole tool body. The first and second magnetic sources have magnetic moments that axially opposed one another. A magnetic field sensor is deployed axially between the first and second magnetic sources. The tool may be utilized, for example, in subterranean well twinning, well intercept, and well avoidance operations to obtain a separation distance and dip angle between a drilling well and a target well.

US Patent:

20220332008, Oct 20, 2022

Filed:

Jun 30, 2022

Appl. No.:

17/854196

Inventors:

- Pittsburgh PA, US
Jun Zhang - Peachtree City GA, US

International Classification:

B27K 3/22
C07C 51/41

Abstract:

A method for producing copper carboxylate, a wood preservative composition comprising copper carboxylate, and a wood product produced therefrom are provided. The method comprises combining a hydrocarbon solvent, a copper compound, and carboxylic acid and contacting the copper compound with the carboxylic acid in the presence of the hydrocarbon solvent to form a reaction product comprising copper carboxylate.

US Patent:

20230080961, Mar 16, 2023

Filed:

Sep 8, 2022

Appl. No.:

17/940725

Inventors:

- Pittsburgh PA, US
Jun Zhang - Peachtree City GA, US
Billy Jay Cairns - Monaca PA, US
Peter Tham - Morrow GA, US
Carl Camille Mueller - Gibsonia PA, US
Kevin J. Costanzo - Pittsburgh PA, US
Brian R. Jones - Richmond, GB
Daniel P. Gray - Pittsburgh PA, US

Assignee:

Koppers Delaware, Inc. - Pittsburgh PA

International Classification:

H01M 4/36
C09D 195/00
C09D 7/20
C09D 7/45
C09D 7/80
C01B 32/21
H01M 4/583
H01M 4/62

Abstract:

A dispersion, methods of making the same, applications of the dispersion to graphitic material and the resulting coated particles are disclosed. The dispersion includes ≤55% wt. coal tar pitch (softening point 100 C.-95 C.), ≤60% wt. dispersant, and the balance a non-aromatic solvent such as water or alcohol. Pitch particles in the dispersion are preferably ≤10 μm with a distribution of D50

Address:

8038 Golf Grn Cir, Houston, TX 77036

VIN:

WDCGG5GB3BF661059

Make:

MERCEDES-BENZ

Model:

GLK-CLASS

Year:

2011