David S Chang

US Patent:

6409391, Jun 25, 2002

Filed:

Mar 22, 2000

Appl. No.:

09/532300

Inventors:

David D. Chang - Encino CA

Assignee:

Cogent Light Technologies, Inc. - Santa Clarita CA

International Classification:

G02B 636

US Classification:

385 53, 385 55, 385 56, 385 60, 385 76, 385 77, 385115, 385139, 385 78

Abstract:

An adaptor assembly for coupling light guide connectors of varying configurations to a structure housing a source of focused light includes an internal adaptor having an internal optic guide element, a coupling structure, a housing, and a connector locking mechanism. The coupling structure can be inserted into and releasably retained within the structure housing the focused light. A light guide connector is inserted into a light guide receiving channel formed in the housing and is releasably retained therein by the connector locking mechanism. An internal optic guide element extends through the coupling structure to transmit focused light from the source of focused light to the light guide connector inserted into the connector-receiving channel. The housing includes heat dissipating elements to facilitate dissipation of heat generated at the interface between the optic guide element and the light guide of the connector. The adaptor assembly also includes a external adaptor having a body portion and an elongated insertion member.

US Patent:

6432593, Aug 13, 2002

Filed:

Jul 28, 2000

Appl. No.:

09/627972

Inventors:

John D. Porter - Berkeley CA
Bob L. Mackey - San Jose CA
Robert G. Neimeyer - San Jose CA
Christopher J. Spindt - Menlo Park CA
David C. Chang - San Francisco CA
Kris E. Sahlstrom - Santa Cruz CA

Assignee:

Candescent Technologies Corporation - San Jose CA

International Classification:

H01J 162

US Classification:

430 25, 313466, 313495

Abstract:

A multi-level matrix structure for frictionally retaining a support structure within a flat panel display device. In one embodiment, the present invention is comprised of a multi-level matrix structure. The multi-level matrix structure of the present embodiment is comprised of a first multi-layered structure disposed on an inner surface of a faceplate of a flat panel display device. The multi-level matrix structure of the present embodiment is further comprised of a plurality of substantially parallel spaced apart ridges. In this embodiment, the plurality of substantially parallel spaced apart ridges overlie the first multi-layered structure. Additionally, in this embodiment, the plurality of substantially parallel spaced apart ridges include contact portions for frictionally retaining a support structure in a first direction at a desired location within the flat panel display device.

US Patent:

6535625, Mar 18, 2003

Filed:

Sep 24, 1999

Appl. No.:

09/405236

Inventors:

David B. Chang - Tustin CA
James E. Drummond - Lincoln City OR
Jane F. Emerson - Irvine CA

Assignee:

Magnetus LLC - Irvine CA

International Classification:

G06K 900

US Classification:

382128, 600407

Abstract:

An apparatus having a coil of wire, energized by a repetitively pulsed radio frequency (RF) power source to provide electromagnetic fields to a region within a body. A scanning, directional hydrophone acoustically connected to the body, samples ultrasonic radiation generated by the RF fields at the RF frequency or twice the RF frequency induced from conductive spots. Signals from the hydrophone are analyzed with regard to their time of arrival relative to the RF pulses and with respect to their direction of arrival. These collected data are recorded and displayed as images of the spots within the region.

US Patent:

6555404, Apr 29, 2003

Filed:

Aug 1, 2000

Appl. No.:

09/629679

Inventors:

Randall L. Kubena - Oak Park CA
David T. Chang - Covina CA

Assignee:

HRL Laboratories, LLC - Malibu CA

International Classification:

H01L 2100

US Classification:

438 22, 438 52, 438 53, 438 51, 257417, 257418

Abstract:

A method of making a micro electromechanical gyroscope. A cantilevered beam structure, first portions of side drive electrodes and a mating structure are defined on a first substrate or wafer; and at least one contact structure, second portions of the side drive electrodes and a mating structure are defined on a second substrate or wafer, the mating structure on the second substrate or wafer being of a complementary shape to the mating structure on the first substrate or wafer and the first and second portions of the side drive electrodes being of a complementary shape to each other. A bonding layer, preferably a eutectic bonding layer, is provided on at least one of the mating structures and one or the first and second portions of the side drive electrodes. The mating structure of the first substrate is moved into a confronting relationship with the mating structure of the second substrate or wafer. Pressure is applied between the two substrates so as to cause a bond to occur between the two mating structures at the bonding or eutectic layer and also between the first and second portions of the side drive electrodes to cause a bond to occur therebetween.

US Patent:

6562551, May 13, 2003

Filed:

May 31, 2000

Appl. No.:

09/585712

Inventors:

John D. Porter - Berkeley CA
Bob L. Mackey - San Jose CA
Robert G. Neimeyer - San Jose CA
Christopher J. Spindt - Menlo Park CA
David C. Chang - San Francisco CA
Kris E. Sahlstrom - Santa Cruz CA

Assignee:

Candescent Technologies Corporation - San Jose CA

International Classification:

H01J 2918

US Classification:

430321, 430330, 445 24, 313495, 216 25, 216 49

Abstract:

A multi-level matrix structure for retaining a support structure within a flat panel display device. In one embodiment, the multi-level matrix structure is comprised of a first parallel ridges. The multi-level matrix structure further includes a second parallel ridges. The second parallel ridges are oriented substantially orthogonally with respect to the first parallel ridges. In this embodiment, the second parallel ridges have a height which is greater than the height of the first parallel ridges. Furthermore, in this embodiment, the second plurality of parallel spaced apart ridges include contact portions for retaining a support structure at a desired location within a flat panel display device. Hence, when a support structure is inserted between at least two of the contact portions of the multi-level support structure, the support structure is retained in place, at a desired location within the flat panel display device, by the contact portions.

US Patent:

6563184, May 13, 2003

Filed:

Aug 1, 2000

Appl. No.:

09/629680

Inventors:

Randall L. Kubena - Oak Park CA
David T. Chang - Covina CA

Assignee:

HRL Laboratories, LLC - Malibu CA

International Classification:

H01L 2982

US Classification:

257419, 257254, 257415, 257418

Abstract:

A method of making a micro electro-mechanical switch or tunneling sensor. A cantilevered beam structure and a mating structure are defined on a first substrate or wafer; and at least one contact structure and a mating structure are defined on a second substrate or wafer, the mating structure on the second substrate or wafer being of a complementary shape to the mating structure on the first substrate or wafer. At least one of the mating structures includes a protrusion extending from a major surface of at least one of said substrates. A bonding layer, preferably a eutectic bonding layer, is provided on at least one of the mating structures. The mating structure of the first substrate is moved into a confronting relationship with the mating structure of the second substrate or wafer. Pressure is applied between the two substrates so as to cause a bond to occur between the two mating structures at the bonding or eutectic layer. Then the first substrate or wafer is removed to free the cantilevered beam structure for movement relative to the second substrate or wafer.

US Patent:

6580138, Jun 17, 2003

Filed:

Aug 1, 2000

Appl. No.:

09/629682

Inventors:

Randall L. Kubena - Oak Park CA
David T. Chang - Calabasas CA

Assignee:

HRL Laboratories, LLC - Malibu CA

International Classification:

H01L 2982

US Classification:

257415, 257254, 257417, 257419

Abstract:

A method of making a micro electro-mechanical switch or tunneling sensor. A cantilevered beam structure and a mating structure are defined on an etch stop layer on a first substrate or wafer; and at least one contact structure and a mating structure are defined on a second substrate or wafer, the mating structure on the second substrate or wafer being of a complementary shape to the mating structure on the first substrate or wafer. A bonding layer, preferably a eutectic bonding layer, is provided on at least one of the mating structures. The mating structure of the first substrate is moved into a confronting relationship with the mating structure of the second substrate or wafer. Pressure is applied between the two substrates so as to cause a bond to occur between the two mating structures at the bonding or eutectic layer. Then the first substrate or wafer and the etch stop layer are removed to free the cantilevered beam structure for movement relative to the second substrate or wafer.

US Patent:

6619475, Sep 16, 2003

Filed:

Mar 21, 2002

Appl. No.:

10/104687

Inventors:

David Chang - Encino CA 90436

International Classification:

A63B 5504

US Classification:

2063156, 2063153, 211 702

Abstract:

A golf bag having a club-separating staggered honeycomb-like cell structure and a method for manufacturing is disclosed. The golf bag includes a plurality of individual hollow fabric-lined plastic or soft fabric tubes coupled to a top opening or collar, and confined or anchored by a bottom or base. The full-length tubing separates and protects the shafts of the golf clubs and prevent them from becoming entangled. The collar comprises a plurality of openings arranged in a honeycomb cell configuration. The cell openings are elongated to maximize the separation between club heads and also allow easy access for club retrieval and replacement. The base as configured keeps the lower end of the tubes in line with cell openings at the other end of the golf bag. The method of manufacturing consists of shaping, positioning and attaching a plurality of tubing to the collar and the base to form the honeycomb cell structure.

Address:

400 Locust St APT 3, San Francisco, CA 94118

Phone:

(415)5679832

VIN:

WMWMF73557TL87781

Make:

MINI

Model:

COOPER

Year:

2007