Mike Ming Yu Chen

US Patent:

6542629, Apr 1, 2003

Filed:

Jul 22, 1999

Appl. No.:

09/360348

Inventors:

John W. Wu - Rancho Palos Verdes CA
Mike C. Chen - Cerritos CA
Zhigang Fan - Webster NY
Kien A. Phong - Cerritos CA

Assignee:

Xerox Corporation - Stamford CT

International Classification:

G06K 900

US Classification:

382135, 356 71, 902 7

Abstract:

A method and apparatus for preventing or inhibiting effective reproduction of documents such as currency, checks, stock certificates, and any other printed document including a pre-defined security mark printed therein. The subject method and apparatus operate to effect a multi-step review of all digital image data acquired from a printed document to be reproduced for purposes of locating any potential security marks and further examining same for purposes of positively identifying a potential security mark as an actual security mark. If a mark is located and verified to be an authentic security mark, effective reproduction of the printed document will not be permitted and/or other security measures will be taken. A pretest of a mark consists of deleting the fine line patterns that may be printed on top of the mark by smoothing the data in an averaging process, and then determining the difference between the density of the darkest and lightest pixels in the area. A difference smaller than a predetermined value means that the mark is not valid.

US Patent:

D588335, Mar 17, 2009

Filed:

Apr 21, 2008

Appl. No.:

29/317009

Inventors:

Mike Chen - Rowland Heights CA, US

International Classification:

0202

US Classification:

D 2717

US Patent:

20030136683, Jul 24, 2003

Filed:

Jan 18, 2002

Appl. No.:

10/053785

Inventors:

Mike Chen - Daly City CA, US
Thomas Dinan - San Jose CA, US
Neil Robertson - Palo Alto CA, US

Assignee:

INTERNATIONAL BUSINESS MACHINES CORPORATION

International Classification:

C25C003/36

US Classification:

205/365000

Abstract:

A process for electroplating and annealing thin-films of nickel-iron alloys having from 63% to 81% iron content by weight to produce pole pieces having saturation flux density (B) in the range from 1.9 to 2.3 T (19 to 23 kG) with acceptable magnetic anisotropy and magnetostriction and a coercivity (H) no higher than 160 A/m (2 Oe). The desired alloy layer properties, including small crystal size and minimal impurity inclusions, can be produced by including higher relative levels of Fe ions in the electroplating bath while holding the bath at a lower temperature while plating from a suitable seed layer. The resulting alloy layer adopts a small crystal size (BCC) without significant inclusion of impurities, which advantageously permits annealing to an acceptable Hwhile retaining the high Bdesired.

US Patent:

20030137767, Jul 24, 2003

Filed:

Jan 18, 2002

Appl. No.:

10/054554

Inventors:

Mike Chen - Daly City CA, US
Thomas Dinan - San Jose CA, US
Paul Nguyen - San Jose CA, US
Neil Robertson - Palo Alto CA, US

Assignee:

INTERNATIONAL BUSINESS MACHINES CORPORATION

International Classification:

G11B015/18
G11B021/02

US Classification:

360/071000, 360/075000

Abstract:

A thin-film write head employing pole pieces formed of an electroplated body-centered cubic (BCC) nickel-iron alloy with a saturation flux density (B) of 1.9 to 2.3 T (19 to 23 kG) and an acceptable coercivity (H) of about 80 to about 160 A/m (1-2 Oe). The iron content of the electroplated nickel-iron alloy is from 64% to 81% by weight. The two-layer pole fabrication process holds magnetic anisotropy and coercivity to useable values while improving saturation flux density and optimizing magnetostriction. This is accomplished by first electroplating a BCC nickel-iron layer onto an underlying seed layer and then annealing the two layers to reduce coercivity to less than about 160 amps/meter and raise magnetization to acceptable levels.

US Patent:

20050266691, Dec 1, 2005

Filed:

May 9, 2005

Appl. No.:

11/126053

Inventors:

Binxi Gu - Cupertino CA, US
Gerardo Delgadino - Santa Clara CA, US
Yan Ye - Saratoga CA, US
Mike Chen - Santa Clara CA, US

International Classification:

H01L021/302
B44C001/22

US Classification:

438706000, 438710000, 438718000, 438723000, 216067000

Abstract:

Certain embodiments include an etching method including providing an etch material, applying a gas mixture including hydrogen, forming a plasma, and etching the etch material. The etch material can include a low-k dielectric material. The gas mixture can include a hydrogen gas, a hydrogen-free fluorocarbon, and a nitrogen gas, and further include one or more of a hydrofluorocarbon gas, an inert gas, and/or a carbon monoxide gas. The hydrogen gas can be a diatomic hydrogen, a hydrocarbon, a silane and/or a fluorine-free hydrogen gas, including H, CH, CH, NH, and/or HO gases. The hydrogen-free fluorocarbon gas can be a CFgas (where x≧1 and Y≧1) and the hydrofluorocarbon gas can be a CHFgas (where x≧1, y≧1 and z≧1). The gas mixture can be free of oxygen. Embodiments can include reduced pressures, reduced hydrogen flow rates and one or more plasma frequencies.

US Patent:

20070093860, Apr 26, 2007

Filed:

Sep 20, 2006

Appl. No.:

11/533623

Inventors:

Rob Rao - Hercules CA, US
Mike Chen - Richmond VA, US

International Classification:

A61B 17/08

US Classification:

606151000

Abstract:

A surgical method and apparatus of repairing a tear, cut or defect in the body tissue, specifically the dura or vascular wall, is disclosed. An inner plate is placed on the tissue's inner surface in a position completely overlapping the tissue defect. An outer plate is placed on the tissue's outer surface in a position completely overlapping the defect and aligned with the inner plate, whereby the inner and outer plates have perimeters larger than the perimeter of the defect. The inner plate is coupled to the outer plate such that the peripheral edges of the body tissue defect are securely clamped between the inner and outer plates to provide a watertight repair to the tissue defect. An associated clamping apparatus and insertion tool is disclosed. An anastomotic clamping device for a body lumen is also disclosed using opposed annular clamping plates.

US Patent:

20070242039, Oct 18, 2007

Filed:

Apr 17, 2006

Appl. No.:

11/379049

Inventors:

Mike Chen - Arcadia CA, US
Fuliang Cho - San Jose CA, US
Futong Cho - Milpitas CA, US
Liang Koh - Fremont CA, US
Hsin Pan - Fremont CA, US

International Classification:

G09G 5/08

US Classification:

345157000

Abstract:

Pointing device providing security means are disclosed. A pointing device is designed to be able to read or write various cards (e.g., tags, IC or magnetic cards, etc.) and communicate securely with a host device. In one embodiment, the pointing device includes a card detector that communicates with a card, and a security engine configured to automatically establish a secured communication channel with a host device when a software module is activated in the host device such that data exchanged between the card and the host device is secured.

US Patent:

20080057577, Mar 6, 2008

Filed:

Apr 6, 2007

Appl. No.:

11/697404

Inventors:

Frances Arnold - Pasadena CA, US
Peter Meinhold - Pasadena CA, US
Matthew Peters - Pasadena CA, US
Rudi Fasan - Brea CA, US
Mike Chen - Pasadena CA, US

Assignee:

California Institute of Technology - Pasadena CA

International Classification:

C07K 14/32
C07K 1/107
C12N 1/19
C12N 1/21
C12N 5/10

US Classification:

435348000, 435252300, 435254200, 435325000, 530350000, 530402000, 536023700

Abstract:

This invention relates to modified hydroxylases. The invention further relates to cells expressing such modified hydroxylases and methods of producing hydroxylated alkanes by contacting a suitable substrate with such cells.