Hoang Vinh Nguyen

US Patent:

51021269, Apr 7, 1992

Filed:

Jun 5, 1989

Appl. No.:

7/363426

Inventors:

Hoang V. Nguyen - Elmhurst NY

International Classification:

A63H 3002

US Classification:

273454

Abstract:

A toy game consists of a map hung beneath a ceiling or a pole, a model aircraft suspended from a map by flexible, plastic string, and a double remote control--one for flight control and another for altitude control. It is operated indoors or outdoors. The aircraft maneuvers including take-off, climb, descent, and landing are controlled by operators. The system consists of tracks in hanger going along the border of the map of the United States of America, an upper motor, a lower motor in fuselage of aircraft, wheels, wired-plastic string, a battery box, bulbs, electric wires and cables. The upper motor is used for propelling to simulate an aircraft flight with all features along border for locating states and cities. The lower motor is used to make altitude changes. The purpose of AIRPLANE FLYING GAME is to help memorizing the location of states and cities.

US Patent:

53609808, Nov 1, 1994

Filed:

Feb 26, 1993

Appl. No.:

8/023502

Inventors:

Peter G. Borden - San Mateo CA
Hoang K. Nguyen - Austin TX
Earl J. Carrasco - Fremont CA

Assignee:

High Yield Technology - Sunnyvale CA

International Classification:

G01N 1506

US Classification:

250573

Abstract:

A structure and an apparatus are provided for use in particle sensor installed to monitor particle level of a process chamber. The process chamber receives process gas from a supply line and removes gas through an exhaust line. The particle sensor's optical components are prevented from contamination by corrosive or coating species in the effluent from the process, by a gas purge line installed in the particle sensor. The gas purge line allows a flow of gas to purge the optical components at a flux not less than the flux of gas being removed from the process chamber in the exhaust line. The flux out of the particle sensor prevents the undesired species from reaching the optical components of the particle sensor from the sampling area where the particle sensor detects the particle level.

US Patent:

51454939, Sep 8, 1992

Filed:

Jun 27, 1991

Appl. No.:

7/722452

Inventors:

Hoang K. Nguyen - Austin TX
Joseph M. Draina - Austin TX

Assignee:

IBM Corporation - Armonk NY
Motorola Inc. - Schaumburg IL

International Classification:

B01D 5700

US Classification:

55 17

Abstract:

A molecular restricter for inhibiting or preventing gas molecules from flowing past a point, such as a piece of optical equipment, substantially without inhibiting particles mixed therewith from passing therethrough is described. The molecular restricter has a plurality of elongated cells with each end open to permit the particles to pass through. However the width of the cell must be less than the mean free path. gamma. of the molecules under the conditions the restricter is to be used with. In one embodiment, the length of the cell is at least ten times longer than its width. The cells are arranged adjacent to each other and in parallel orientation. The walls of each cell must also be parallel to permit free transmission of the particles or light therethrough.

US Patent:

49871021, Jan 22, 1991

Filed:

Dec 4, 1989

Appl. No.:

7/445220

Inventors:

Hoang K. Nguyen - Austin TX
Young Limb - Austin TX
Philip J. Tobin - Austin TX

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H01L 2100
H01L 2102
H01L 21265
C23C 1434

US Classification:

437238

Abstract:

A method is described for the formation of high purity thin films on a semiconductor substrate. In the preferred embodiment of the invention a thin film is formed on a semiconductor substrate in a plasma enhanced chemical vapor deposition system. Energized silicon ions are obtained by mass analysis and are accelerated into a hydrogen-free plasma. A reaction occurs between energized atoms within the plasma and the energized silicon ions resulting in the deposition of a thin film on the semiconductor substrate.

US Patent:

56647859, Sep 9, 1997

Filed:

Jan 11, 1995

Appl. No.:

8/371230

Inventors:

Hoang Van Nguyen - Elmhurst NY

International Classification:

A63H 1320

US Classification:

273442

Abstract:

A toy airplane game involving a central upright member, flying device, airplane tether mechanism attached to the flying device, and landing area, wherein the operator controls the operation of the flying device in takeoff, flying and landing to different predetermined location on a map or the like.

Address:

12712 Linford Dr, Austin, TX 78753

VIN:

4T1BE46K77U021324

Make:

TOYOTA

Model:

CAMRY

Year:

2007