Alan Ray Thomas

US Patent:

6611109, Aug 26, 2003

Filed:

Oct 9, 2001

Appl. No.:

09/974945

Inventors:

Charles I. Zovko - Chandler AZ
Alan C. Thomas - Gilbert AZ

Assignee:

Durel Corporation - Chandler AZ

International Classification:

B41J 245

US Classification:

3151693, 347238, 347232

Abstract:

At least one layer of cascading material overlying an EL lamp converts the light emitted by the EL lamp into infrared light. The EL lamp is supported within in a container transparent to at least infrared light, along with at least one battery and an inverter to provide power for the lamp in portable applications. The lamp is rolled to form a cylinder and fits within the inside diameter of the container. The lamp can be turned on or off by means of a switch interrupting current from a battery or to the lamp.

US Patent:

6787988, Sep 7, 2004

Filed:

Nov 13, 2001

Appl. No.:

10/008051

Inventors:

Alan C. Thomas - Gilbert AZ

Assignee:

Durel Corporation - Chandler AZ

International Classification:

H01J 162

US Classification:

313503, 313502

Abstract:

Particles of electroluminescent phosphor having a moisture proof coating are re-coated by treating the phosphor in a fluidized bed with a mixture of water vapor and an organotrichlorosilane compound for approximately thirty minutes. The resultant siloxane coating further improves the moisture resistance of the phosphor.

US Patent:

7238535, Jul 3, 2007

Filed:

Sep 1, 2004

Appl. No.:

10/931827

Inventors:

Karen Ruth Brower - Chandler AZ, US
Roy Scott Chancellor - Scottsdale AZ, US
William A. Coghlan - Tempe AZ, US
Curtis Henry Kempton - Higley AZ, US
Alan C. Thomas - Gilbert AZ, US

Assignee:

World Properties, Inc. - Lincolnwood IL

International Classification:

G01N 21/64
G01N 21/01

US Classification:

436172, 422 58, 422 8205, 422 8207, 422104, 436165

Abstract:

An test cell is adapted for both making and testing samples. The cell includes a bottom plate and a top plate having concentric apertures defining a central test cavity. A post attached to the bottom plate closes off the bottom of the test cavity. A slide closes off the top of the test cavity. The top of the post is spaced slightly from the underside of the slide to define a test cavity of substantially uniform thickness. The test cavity is filled with phosphor suspended in uncured resin, closed, and the resin is cured. Once cured, the sample is stable, although delicate, and can be re-measured several times with reproducible results. The measurement takes place in the cell, using a thin film of oil for wetting surfaces.

US Patent:

7255844, Aug 14, 2007

Filed:

Nov 24, 2004

Appl. No.:

10/997254

Inventors:

Fernando A. Ponce - Tempe AZ, US
Rafael Garcia - Tempe AZ, US
Abigail Bell - Northamptonshire, GB
Alan C. Thomas - Gilbert AZ, US
Michael R. Stevens - Phoenix AZ, US

Assignee:

Arizona Board of Regents - Tempe AZ

International Classification:

C01B 21/06

US Classification:

423409

Abstract:

A method of producing high quality GaN powder by combining high purity gallium and high purity ammonia in a tube reactor under controlled conditions. A reaction between the ammonia and gallium under the controlled conditions produces a porous gallium melt and to a full reaction, yielding high purity crystalline GaN powders with a stoichiometric nitrogen concentration and a hexagonal wurtzite structure.

US Patent:

7742125, Jun 22, 2010

Filed:

Aug 24, 2007

Appl. No.:

11/895537

Inventors:

Alan C. Thomas - Gilbert AZ, US
Walter J. Paciorek - Phoenix AZ, US

Assignee:

World Properties, Inc. - Lincolnwood IL

International Classification:

G02F 1/1333
G02B 26/02

US Classification:

349 86, 349 61, 349 84, 359227

Abstract:

A display includes a light switch overlying a backlight and having at least two light shutters which do not, by themselves, convey information by the shape thereof. The lit area of the backlight is equal to or greater than the sum of the areas of the shutters within the area. The display can also include a graphics layer overlying the light switch. The information content of the display is changed by changing the graphics layer.

US Patent:

8421755, Apr 16, 2013

Filed:

Jan 17, 2006

Appl. No.:

11/333166

Inventors:

Mark A. Seelhammer - Chandler AZ, US
Alan C. Thomas - Gilbert AZ, US
David G. Pires - Phoenix AZ, US
Walter J. Paciorek - Phoenix AZ, US

Assignee:

World Properties, Inc. - Lincolnwood IL

International Classification:

G06F 3/041

US Classification:

345173

Abstract:

A personal electronic device includes a programmable display and a programmable keypad, wherein at least one of the programmable display and the programmable keypad includes a capacitive touch sensor and an EL panel in a unitary structure. A conductive layer shields the capacitive touch sensor from the EL panel and can be a separate layer or be incorporated into either the capacitive sensor or the EL panel. The conductive layer includes antimony tin oxide (ATO), other conductive oxide, or a conductive polymer, such as Orgacon™ 3010.

US Patent:

20070023765, Feb 1, 2007

Filed:

Jul 29, 2005

Appl. No.:

11/193305

Inventors:

Alan Thomas - Gilbert AZ, US
Ilona Budinavicius - Phoenix AZ, US
Walter Paciorek - Phoenix AZ, US

International Classification:

H01L 27/15

US Classification:

257081000

Abstract:

In an array of LEDs coupled between a transparent substrate and an electrode, a light emitting surface of each LED is in electrical contact with a region of acicular ITO. By contacting the light emitting surface of the die, the acicular ITO also provides light scattering. The contact regions are interconnected to form the array. The acicular ITO acts as a ballast resistance for each die and the resistance can be trimmed for more uniform current among the LEDs. Because each LED is individually ballasted, the LEDs in an array can be driven in any pattern or all simultaneously at a consistent brightness.

US Patent:

20080025902, Jan 31, 2008

Filed:

Apr 27, 2005

Appl. No.:

10/589541

Inventors:

Fernando A. Ponce - Tempe AZ, US
Rafael Garcia - Tempe AZ, US
Alan C. Thomas - Gilbert AZ, US
Abigail Bell - Northants, GB

International Classification:

C09K 11/08

US Classification:

423409, 75363

Abstract:

A simple, inexpensive method of producing in bulk a doped metal nitride powder that exhibits a high luminescent efficiency, by first forming a metal-dopant alloy and then reacting the alloy with high purity ammonia under controlled conditions in a reactor. The resulting doped metal nitride powders will exhibit a luminescent efficiency that greatly exceeds that seen in pure undoped GaN powders, doped GaN thin films, and ZnS powders.