Yu Heng Huang

US Patent:

D521671, May 23, 2006

Filed:

Jul 27, 2004

Appl. No.:

29/210223

Inventors:

Joshua Qi Chen - Newport Beach CA, US
Yu Wei Huang - Newport Beach CA, US

Assignee:

Nature Bright Company - Irvine CA

International Classification:

2605

US Classification:

D26 65

US Patent:

7230758, Jun 12, 2007

Filed:

Jun 30, 2005

Appl. No.:

11/171070

Inventors:

Yu Huang - Los Angeles CA, US

Assignee:

Luminoz, Inc. - Tokyo

International Classification:

G03B 21/60
G03B 21/56

US Classification:

359457, 359459, 359460

Abstract:

An off-axis Fresnel lens is disclosed that, when combined with a rear projection screen (comprising, e. g. , a lenticular lens, a diffuser, or both), enables construction of rear-projection-type screen devices (e. g. , projection television systems) that are thinner and have improved contrast and resolution when compared with conventional projection screen devices. The off-axis Fresnel lens comprises a plurality of concentric, outwardly-extending, total internal reflection-type prism facets. Each facet, in turn, comprises top and bottom sides, one or both of which may be flat or outwardly convex. Embodiments of the invention may also include concentric opaque sections that are disposed between successive prisms, between the prism base and the output surface of the Fresnel lens, and/or between the output surface of the Fresnel lens and the input surface of the projection screen in order to improve contrast. Contrast may also be enhanced by laminating the Fresnel lens to the projection screen.

US Patent:

D556334, Nov 27, 2007

Filed:

Apr 13, 2006

Appl. No.:

29/257978

Inventors:

Joshua Qi Chen - Newport Coast CA, US
Yu Wei Huang - Newport Coast CA, US

Assignee:

Nature Bright Company - Irvine CA

International Classification:

2803

US Classification:

D24209

US Patent:

7758754, Jul 20, 2010

Filed:

Jan 9, 2007

Appl. No.:

11/651303

Inventors:

Nicholas P. Wynn - Redwood City CA, US
Yu Huang - Palo Alto CA, US
Tiem Aldajani - San Jose CA, US
Donald A. Fulton - Fairfield CA, US

Assignee:

Membrane Technology and Research, Inc - Menlo Park CA

International Classification:

B01D 15/00
C02F 1/44

US Classification:

210640, 2103218, 210175, 95 52

Abstract:

The invention is a pervaporation process and pervaporation equipment, using a series of membrane modules, and including inter-module reheating of the feed solution under treatment. The inter-module heating is achieved within the tube or vessel in which the modules are housed, thereby avoiding the need to repeatedly extract the feed solution from the membrane module train.

US Patent:

7852556, Dec 14, 2010

Filed:

Jun 6, 2007

Appl. No.:

11/810489

Inventors:

Yu Huang - Los Angeles CA, US
Adnan Malik - Los Angeles CA, US

Assignee:

Luminoz, Inc. - Tokyo

International Classification:

G03B 21/60
G03B 21/56

US Classification:

359457, 359459, 359460

Abstract:

Off-axis total internal reflection Fresnel lenses and projection screens are disclosed that, when combined, enable construction of projection assemblies for rear-projection-type screen devices (e. g. , projection television systems) that are thinner, provide easier handling and maintenance, and have improved contrast, focusing, and resolution when compared with conventional projection screen devices. The off-axis Fresnel lens comprises a plurality of concentric, outwardly-extending, total internal reflection-type prism facets, the top side of which may be aspherical. Embodiments of the invention also include projection screens having at least one diffuser and one lenticular lens. In addition, one or more opaque layers may be used to improve contrast. The various components, e. g. , the fresnel lens, the diffuser, the lenticular lens(es), the opaque layer(s), etc.

US Patent:

8002874, Aug 23, 2011

Filed:

Mar 6, 2007

Appl. No.:

11/715245

Inventors:

Yu Huang - Palo Alto CA, US
Jennifer Ly - San Jose CA, US
Tiem Aldajani - San Jose CA, US
Richard W. Baker - Palo Alto CA, US

Assignee:

Membrane Technology and Research, Inc. - Menlo Park CA

International Classification:

B01D 53/22

US Classification:

95 50, 95 52, 210640, 96 14

Abstract:

Processes for dehydrating an organic/water solution by pervaporation or vapor separation using fluorinated membranes. The processes are particularly useful for treating mixtures containing light organic components, such as ethanol, isopropanol or acetic acid.

US Patent:

8123943, Feb 28, 2012

Filed:

Jun 4, 2010

Appl. No.:

12/794445

Inventors:

Nicholas P Wynn - Redwood City CA, US
Yu Huang - Palo Alto CA, US
Tiem Aldajani - San Jose CA, US
Donald A Fulton - Fairfield CA, US

Assignee:

Membrane Technology and Research, Inc - Menlo Park CA

International Classification:

B01D 15/00
C02F 1/44

US Classification:

2103216, 2103218, 210175, 21050023, 210641, 95 52

Abstract:

The invention is a pervaporation process and pervaporation equipment, using a series of membrane modules, and including inter-module reheating of the feed solution under treatment. The inter-module heating is achieved within the tube or vessel in which the modules are housed, thereby avoiding the need to repeatedly extract the feed solution from the membrane module train.

US Patent:

8128787, Mar 6, 2012

Filed:

Aug 27, 2008

Appl. No.:

12/229790

Inventors:

Nicholas P. Wynn - Palo Alto CA, US
Yu Huang - Palo Alto CA, US
Richard W Baker - Palo Alto CA, US

Assignee:

Nitto Denko Corporation - Osaka

International Classification:

B01D 3/00
C07C 45/82
C07C 29/80
C07C 51/44

US Classification:

203 12, 203 15, 203 16, 203 17, 203 18, 203 19, 203 23, 203 24, 203 25, 203 26, 203 27, 203 75, 203 78, 203DIG 8, 203DIG 9, 203DIG 13, 210640, 210641, 435162, 435163, 568916, 568917

Abstract:

Processes for removing water from organic solvents, such as ethanol. The processes include distillation in two columns operated at sequentially higher pressure, followed by treatment of the overhead vapor by one or two membrane separation steps.