Michael T Chang

US Patent:

6712146, Mar 30, 2004

Filed:

Nov 30, 2001

Appl. No.:

09/998125

Inventors:

James W. Estep - Houston TX
Michael Chang - Houston TX

Assignee:

Halliburton Energy Services, Inc. - Houston TX

International Classification:

E21B 2300

US Classification:

166377, 166 651, 166 664, 1662426, 1662427, 175320

Abstract:

A disconnect assembly connecting two portions of a downhole assembly having a downhole apparatus attached to a coiled tubing string. The disconnect assembly includes a first housing connected to one portion of the downhole assembly and a second housing connected to another portion of the downhole assembly. The housings are releasably connected by a release assembly. The release assembly is coupled to a drive train on a motor by a connection transferring rotational motion into translational motion. The release assembly includes locking members having a connected position engaging both housings and a released position wherein the housings can be separated. The motor is connected to the surface by conductors extending through the coiled tubing whereby the motor may be actuated from the surface to move the release assembly between the connected and disconnected positions.

US Patent:

20040043682, Mar 4, 2004

Filed:

Sep 4, 2002

Appl. No.:

10/236053

Inventors:

Steven Taylor - Glendora CA, US
Mark Longfellow - Foothill Ranch CA, US
Norman Tracy - Huntington Beach CA, US
Robert Henderson - Tustin CA, US
Michael Chang - Irvine CA, US
Roland Weber - Rancho Palos Verdes CA, US

International Classification:

B32B027/12
B32B013/02
B32B013/14
B32B005/02
B32B027/04

US Classification:

442/042000, 442/043000, 442/045000, 442/049000

Abstract:

A composite board for use as backerboard for tile, the board including a mesh layer with a mesh fabric, a mat layer with a mat fabric and a polystyrene layer disposed between the two portions where a non-shrinking cement compound saturates and connects the two outer portions with the polystyrene substrate. The composite board's mesh layer incorporates a stretchable mesh which in conjunction with the polystyrene substrate and the non-shrinking cement compound supports standard fasteners used in the home-building industry along with providing a suitable tile adhesion surface. The mat layer incorporates a fiberglass mat which provides high rigidity as well as being suitable for contact with an inner wall or studs. The combination of materials provides a backerboard that is light weight, rigid, economical and easy to build with.

US Patent:

20060183387, Aug 17, 2006

Filed:

Dec 14, 2005

Appl. No.:

11/304987

Inventors:

Steven Taylor - Glendora CA, US
Mark Longfellow - Foothill Ranch CA, US
Norman Tracy - Huntington Beach CA, US
Robert Henderson - Tustin CA, US
Michael Chang - Irvine CA, US
Roland Weber - Rancho Palos Verdes CA, US

International Classification:

B32B 5/24

US Classification:

442030000, 442035000, 442042000, 442043000, 442045000, 442046000, 442048000, 442049000, 442164000, 442180000, 428304400, 428318400, 442370000, 442221000

Abstract:

A composite board for use as backerboard for tile includes outer reinforcement portions and a polystyrene layer disposed between the two outer reinforcement portions, at least one of the outer reinforcement portions being an outer mat fabric reinforcement layer with a mat fabric, and a non-shrinking cement compound saturating and connecting the two outer portions with the polystyrene substrate. A method of installing a composite tile backerboard involves placing the composite board against a fixture protruding from a flat surface, pressing the composite board against the fixture to emboss the features of the fixture on the surface of the composite board, and cutting a hole in the composite board based upon the features of the fixture embossed on the composite board.

US Patent:

20130271775, Oct 17, 2013

Filed:

Apr 11, 2012

Appl. No.:

13/444599

Inventors:

Michael M. Chang - Redondo Beach CA, US

Assignee:

KYOCERA DOCUMENT SOLUTIONS INC. - Osaka

International Classification:

H04N 1/60
G06K 15/02

US Classification:

358 19

Abstract:

Methods and systems for accommodating color ranges are provided. A source light-to-dark dynamic range of a first output medium may be obtained with a source white point and a source black point. A destination light-to-dark dynamic range of a second output medium may be obtained with a destination white point and a destination black point. A white point mapping and a black point mapping may be determined. Based on a first representation of an image on the first output medium, a second representation of the image may be created by interpolating the source light-to-dark dynamic range to the destination light-to-dark dynamic range based on the white point mapping and the black point mapping. A computing device may cause the second output medium to produce the representation of the image.

US Patent:

49078283, Mar 13, 1990

Filed:

Feb 16, 1988

Appl. No.:

7/156206

Inventors:

Michael C. Chang - Houston TX

Assignee:

Western Atlas International, Inc. - Houston TX

International Classification:

F16L 3500

US Classification:

285 24

Abstract:

The present invention is directed to an apparatus and method for assembling, aligning and securing a sealed connection. The apparatus and method of the present invention advantageously employ the mechanical leverage of a threaded connection, preferably square threads, to overcome the high O-ring seal friction associated with large diameter, high pressure O-ring seals. The disadvantages of threads are eliminated by the use of thread relief grooves adjacent and interior to the threads. The thread relief grooves must be of sufficient length and annular dimensions to accommodate the disengaged upset threads therein to permit free rotation. The combined length of threaded engagement must be sufficient to move the O-ring seal into sealing engagement to fully achieve the advantageous ease of assembly of the present invention. Further, this connection is unlikely to separate during use in that disengagement of the threads into the thread relief grooves prevents back off where high make up torque is not employed. After makeup of the O-ring seal, continued rotation results in disengagement of the threads into the thread relief grooves where alignment in any desired orientation is easily achieved by continued rotation.

US Patent:

20180302532, Oct 18, 2018

Filed:

Jun 26, 2018

Appl. No.:

16/018453

Inventors:

- Osaka, JP
Michael M. Chang - El Segundo CA, US
Dongpei Su - El Segundo CA, US
Kenneth A. Schmidt - El Segundo CA, US

International Classification:

H04N 1/40
H04N 1/00
H04N 1/32
H04N 1/405

Abstract:

An example embodiment may involve causing a page of a document to be printed on a printing device, wherein the printing device is in an AM halftoning mode and prints the page using an AM halftone; displaying, on the display unit, a graphical user interface, wherein the graphical user interface includes a selectable option to switch the printing device from the AM halftoning mode to an FM halftoning mode; receiving an indication that the selectable option has been selected; possibly in response to receiving the indication that the selectable option has been selected, causing the printing device to switch from the AM halftoning mode to the FM halftoning mode; and causing the page of the document to be printed again on the printing device, wherein the printing device is in the FM halftoning mode and prints the page using an FM halftone.

US Patent:

20180084151, Mar 22, 2018

Filed:

Aug 1, 2017

Appl. No.:

15/665706

Inventors:

- Osaka, JP
Michael M. Chang - El Segundo CA, US
Dongpei Su - El Segundo CA, US
Kenneth A. Schmidt - El Segundo CA, US

International Classification:

H04N 1/40
H04N 1/405
H04N 1/32
H04N 1/00

Abstract:

An example embodiment may involve causing a page of a document to be printed on a printing device, wherein the printing device is in an AM halftoning mode and prints the page using an AM halftone; displaying, on the display unit, a graphical user interface, wherein the graphical user interface includes a selectable option to switch the printing device from the AM halftoning mode to an FM halftoning mode; receiving an indication that the selectable option has been selected; possibly in response to receiving the indication that the selectable option has been selected, causing the printing device to switch from the AM halftoning mode to the FM halftoning mode; and causing the page of the document to be printed again on the printing device, wherein the printing device is in the FM halftoning mode and prints the page using an FM halftone.

US Patent:

20140268194, Sep 18, 2014

Filed:

Feb 14, 2014

Appl. No.:

14/180583

Inventors:

- Osaka, JP
Michael M. Chang - El Segundo CA, US

Assignee:

KYOCERA Document Solutions Inc. - Osaka

International Classification:

G06K 15/02

US Classification:

358 19

Abstract:

A method for determining a color profile from received raster data and printing the raster data is provided. Color profiles provide a mapping from a color space of the raster data to a color space of the printer, which typically uses CMYK toner or ink. A text color profile may be employed to print crisper text, or a photo color profile may be employed to produce better images. The raster data includes a plurality of raster scan lines containing digital pixel values. The method includes determining a number of sequentially repeated digital pixel values and a number of sequentially non-repeated digital pixel values for the plurality of raster scan lines. A color profile is selected based on a determination between the repeated and non-repeated digital pixel values. An example image forming apparatus that may carry out the method is also provided.