James Lau

6459172, Oct 1, 2002

Mar 20, 2001

09/813426

James L. Lau - Santa Ana CA
Xiao Ping Jin - Santa Ana CA

Broadband Telcom Power, Inc. - Santa Ana CA

H02J 700

307 64

A power distributing mechanism includes a regulating circuit disposed between at least two circuit portions. The regulating circuit has bifilar-wound windings electrically coupled to the circuit portions. In a first embodiment, the two circuit portions withdraw power from two separate power sources. The regulating circuit, in response to power withdrawn from the power sources passing through the circuit portions, proportionally allocates the withdrawn power between the circuit portions. In a second embodiment, the two circuit portions withdraw power from a single power source. The two circuit portions serve as redundant reliability backup to each other. In the event of circuit failure in one of the circuit portions, the regulating circuit in response to the failure proportionally allocates power to the remaining functioning circuit portion.

6492620, Dec 10, 2002

May 18, 2001

09/860872

James C. Lau - Torrance CA

TRW Inc. - Redondo Beach CA

H05B 300

219209, 361782, 347210

Fault tolerance is incorporated within the integral electric heaters of a reworkable electronic semiconductor component, such as a reworkable multi-chip module, to increase production yield and longevity of the rework feature. Components of the foregoing kind contain a multi-layer substrate to bond to a printed wiring board, and, for rework, the component includes a plurality of electric heaters arranged side by side on a bottom layer of the substrate. When energized with current, the heaters generate sufficient heat to weaken the adhesive or solder bond to the printed wiring board without delaminating the layers of the substrate, allowing the electronic semiconductor component to be pulled away from the printed wiring board for rework. Additional circuitry is included to automatically route heater current around, that is bypass, any current-interrupting break(s) as may form in any of the electric heaters giving the heaters a fault tolerance.

6498546, Dec 24, 2002

Aug 25, 2000

09/648987

James Leych Lau - Santa Ana CA, 92705

H03H 700

333181, 333184

An electrical noise-filtering assembly includes first and second busbars. The first busbar is spaced from the second busbar at a fixed distance sufficient to induce the proximity effect. As arranged, high frequency noise having high order harmonics adhere to the surfaces spaced by the fixed distance. Noise can be removed efficiently by disposing low equivalent series resistance (ESR) noise filters between the surfaces where the noise harmonics concentrate.

6525435, Feb 25, 2003

Aug 13, 2001

09/929653

James L. Lau - Santa Ana CA
Xiao Ping Jin - Santa Ana CA

Broadband Telcom Power, Inc. - Santa Ana CA

H02J 110

307 52, 307 82

A power distributing mechanism includes a regulating circuit disposed between at least two circuit portions. The regulating circuit includes bifilar-wound windings electrically coupled to the circuit portions. In a first embodiment, the two circuit portions withdraw power from two separate power sources. The regulating circuit, in response to power withdrawn from the power sources passing through the circuit portions, proportionally allocates the withdrawn power between the circuit portions. In a second embodiment, the two circuits portions withdraw power from a single power source. The two circuit portions serve as redundant reliability backup to each other. In the event of circuit failure in one of the circuit portions, the regulating circuit in response to the failure proportionally allocates power to the remaining functioning circuit portion.

6607413, Aug 19, 2003

Jun 29, 2001

09/894239

William C. Stevenson - Santa Ana CA
Philip Chan - Santa Ana CA
James Lau - Santa Ana CA

Novatech Electro-Luminescent, Inc. - Chino CA

H05B 3310

445 24, 156 67, 427 66, 313506

A method for manufacturing low cost electroluminescent (EL) lamps is disclosed. The method of the present invention includes the first step of die cutting, embossing or chemically etching the metal foil surface of a metal foil bonded flexible electrical insulation to simultaneously form one or more rear capacitive electrodes, electrical terminations, optical registration fiducial indicia, and a continuous carrier means that is then coupled to a precisely positioned indexing system. Next, the rear metal foil capacitive electrodes are coated with a capacitive dielectric layer precisely isolating the rear electrode form. In the third step, a layer of electroluminescent phosphor ink is applied to the rear capacitive electrodes to precisely form areas of illumination. In step four, a layer of light transmissive and electrically conductive ink is applied to cover the EL phosphor layer. Next, in step five a transparent polyester film or ultraviolet activated dielectric coating is applied to the entire surface of the lamp.

6698085, Mar 2, 2004

Aug 30, 2001

09/942339

William C. Stevenson - Santa Ana CA
James L. Lau - Santa Ana CA

Novatech Electro-Luminescent, Inc. - Chino CA

H01H 1100

29622, 29846, 29847, 216 13

A method for manufacturing low cost electroluminescent (EL) illuminated membrane switches is disclosed. The method includes the first step of die cutting, embossing or chemically etching the metal foil surface of a metal foil bonded, light transmitting flexible electrical insulation to simultaneously form one or more front capacitive electrodes, membrane switch contacts and electrical shunt, electrical distribution means and electrical terminations that together comprise a flexible printed circuit panel. This continuous flexible printed circuit substrate is then coupled to a precisely positioned indexing system. Next, the front metal foil capacitive electrodes are coated with a light transmissive electrically conductive layer. Then, a layer of electroluminescent phosphor is applied to the electrically conductive layer, a layer of capacitive dielectric is applied insulating the phosphor layer, a rear capacitive electrode is then applied over the capacitive dielectric layer, thus forming an electroluminescent lamp portion. Next, a transparent dielectric coating is applied to the entire surface of the lamp and substrate with open portions exposing electrical terminations, switch contacts and shunt.

7255622, Aug 14, 2007

Jun 27, 2003

10/608370

William C. Stevenson - Santa Ana CA, US
James Lau - Santa Ana CA, US

Novatech Electro-Luminescent Inc. - Chino CA

H01J 9/00
H01H 11/00

445 24, 29622

A method for manufacturing low cost electroluminescent (EL) illuminated membrane switches is disclosed. The method includes the steps of die cutting, embossing or chemically etching the metal foil surface of a metal foil bonded, light transmitting flexible electrical insulation to simultaneously form one or more front capacitive electrodes, membrane switch contacts and electrical shunt, electrical distribution means and electrical terminations that together form a flexible printed circuit panel. This continuous flexible printed circuit substrate is then used with a precisely positioned indexing system.

8484972, Jul 16, 2013

Sep 23, 2010

12/924199

James Chung-Kei Lau - Torrance CA, US

F03G 7/04

606417

Apparatus and methods are disclosed for OTEC plant. The device can be deployed in ocean with depth of 600 meter or more.