Daniel C Chang

US Patent:

6602766, Aug 5, 2003

Filed:

Nov 27, 2001

Appl. No.:

09/996469

Inventors:

Daniel H. Chang - San Diego CA
Xiang-Ming Li - San Diego CA

Assignee:

AEM, Inc. - San Diego CA

International Classification:

H01L 2120

US Classification:

438496, 430198

Abstract:

A multilayered electronic component with or without inter-layer connections created by a process using radiation curing such as ultraviolet/electron beam curing techniques. UV light or electron beam curable binders are mixed with ceramic powders and metals powders to form a ceramic slurry and electrode ink, there is little or no solvent in the metal ink and ceramic slurry. Instead of drying, a UV or electron beam is used for curing the binders. These binders could contain UV/electron beam curable monomers or oligomers, photo initiators, and other additives to provide the desired chemical and physical properties in the forming process.

US Patent:

7271369, Sep 18, 2007

Filed:

Aug 26, 2005

Appl. No.:

11/213201

Inventors:

Xiang-Ming Li - San Diego CA, US
Xiaopeng Yang - San Diego CA, US
Liwu Wang - San Diego CA, US
Daniel H. Chang - Rancho Santa Fe CA, US

Assignee:

AEM, Inc. - San Diego CA

International Classification:

H05B 1/02

US Classification:

219505, 219539, 219541, 219552, 219549, 338 22 R

Abstract:

An improved PTC device and method of manufacturing is disclosed. In one embodiment, the device and method incorporates an improved metal-ceramic composite PTC material manufactured by: (a) heating a ceramic material to a sufficiently high temperature to induce the ceramic material's PTC properties; (b) grinding the ceramic PTC material into a powder; (c) mixing the ceramic PTC material powder with a metal material powder so as to produce a metal-ceramic composite material powder; and (d) sintering the composite material powder at a temperature between 600 and 950 C. In alternative embodiments, an improved multi-layer structure and method of manufacturing such a structure is disclosed. In various embodiments, a PTC device made in accordance with the improved multi-layer structure and method of manufacture may or may not incorporate the improved metal-ceramic composite PTC material disclosed herein, but may use conventional ceramic-based PTC materials.

US Patent:

8636640, Jan 28, 2014

Filed:

Apr 11, 2009

Appl. No.:

12/386006

Inventors:

Daniel Wonchul Chang - Arcadia CA, US

Assignee:

Brain Symphony LLC - Los Angeles CA

International Classification:

A61M 21/00

US Classification:

600 28

Abstract:

The present invention is a method of modifying music files to induce a desired state of consciousness. First and second modulations are introduced into a music file such that, when the music file is played, both of the modulations occur simultaneously. Additional modulations can be introduced, as well as sound tones at window frequencies.

US Patent:

7268661, Sep 11, 2007

Filed:

Sep 27, 2004

Appl. No.:

10/952097

Inventors:

Xiang-Ming Li - San Diego CA, US
Liwu Wang - San Diego CA, US
Jeffrey D. Montgomery - Vista CA, US
Daniel H. Chang - Rancho Santa Fe CA, US

Assignee:

AEM, Inc. - San Diego CA

International Classification:

H01H 85/06
H01H 85/38

US Classification:

337296, 337276, 337290

Abstract:

A composite fuse element includes a network or matrix of conductive material that is in contact and interspersed with arc suppressing materials at a particle level. In such a matrix, the conductive (e. g. , metal) network and the arc suppressing material particles provides a large contact surface area between these materials. When the conductive network melts or vaporizes, the resulting conductive vapors are adsorbed into the arc suppressing particles in a short time due to the large contact area between conductive and arc suppressing materials and the short diffusion distance that the conductive vapors are required to travel before they are absorbed by the arc suppressing material.

US Patent:

20030096692, May 22, 2003

Filed:

Sep 18, 2002

Appl. No.:

10/246847

Inventors:

Liwu Wang - San Diego CA, US
Xiang-Ming Li - San Diego CA, US
Albert Tian - San Diego CA, US
Daniel Chang - Rancho Santa Fe CA, US
Zhong Zheng - City of Industry CA, US

Assignee:

AEM, Inc. - San Diego CA

International Classification:

C03C014/00

US Classification:

501/032000

Abstract:

A dense lead-free glass ceramic that has low dielectric constant and low dielectric loss for producing high-frequency ceramic devices, such as inductors and low temperature co-fired ceramics (LTCC), is disclosed. The glass ceramic consists of 15-35% by weight of lead-free borosilicate glasses with low softening point, 15-35% by weight of lead-free borosilicate glasses with high softening point, 20-80% by weight of combination of amorphous and crystalline SiO-filler (preferably 5-30% by weight of amorphous SiO, 10-50% by weight of crystalline SiO) and 0.1-10% by weight of at least one oxide of AlO, BaO, SbO, VO, CoO, MgO, BO, NbO, SrO and ZnO. The glass ceramic can be densified up to 99% of its theoretical density after firing and is co-firable with conductive metals between 800-900 C. The dense glass ceramic has dielectric constant of 4.2-4.6 and loss tangent (tan )

US Patent:

20100314160, Dec 16, 2010

Filed:

Jun 11, 2009

Appl. No.:

12/483166

Inventors:

Daniel Chang - Fullerton CA, US
Sam Najjar - Yucaipa CA, US

International Classification:

H05K 1/03
C08K 5/521
C08K 5/3492
B32B 17/04
B32B 27/36
B32B 27/34
B32B 27/06
C08J 5/24

US Classification:

174255, 524147, 524102, 442 59, 428480, 4284744, 4284735, 4273855

Abstract:

In accordance with the present invention compositions are described which are useful, for example, for the preparation of metal-clad laminate structures, methods for the preparation thereof, and various uses therefor. Invention metal-clad laminate structures are useful, for example, multi-layer board (MLB) industry, in the preparation of burn-in test boards and high reliability boards, applications where low coefficient of thermal expansion (CTE) is beneficial, in the preparation of boards used in down-hole drilling, and the like.

US Patent:

20140043239, Feb 13, 2014

Filed:

Dec 13, 2012

Appl. No.:

13/713861

Inventors:

Daniel Chang - Kent WA, US
Sameer Garde - Redmond WA, US
Parul Dalia - Issaquah WA, US

Assignee:

MICROSOFT CORPORATION - Redmond WA

International Classification:

G06F 3/0488

US Classification:

345169

Abstract:

Embodiments of a soft input panel (SIP) for an electronic device are disclosed. The SIP can be configured for entering text in a non-English language that uses a more numerous character set than does English. The characters used in the language that are available to be entered using the SIP can be available to be entered using keys on a single page of keys without switching to a different page of keys or using function keys. At least one of the keys of the SIP is a base key that is configured to open a picker window when activated. The picker window comprises plural picker keys that allow a user to select from plural different characters associated with the base key.

US Patent:

62282301, May 8, 2001

Filed:

Apr 19, 1999

Appl. No.:

9/294993

Inventors:

Xiang-Ming Li - San Diego CA
Tom w. Lamayeau - San Diego CA
Kenneth McMasters Wallace - San Diego CA
Bruce W. Hess - San Diego CA
William DeoGracias - San Diego CA
Daniel H. Chang - San Diego CA

Assignee:

AEM, Inc. - San Diego CA

International Classification:

C25D 1700

US Classification:

204222

Abstract:

An apparatus for electroplating small parts comprises an electroplating bath for holding an electrolyte and electroplating anodes. The apparatus includes a container having at least one screened parts compartment for holding the parts to be electroplated, and incorporates an electrically conductive screen as its base portion, on which the parts are settled. The conductive screen is adaptable to be connected to the negative pole of a power supply to function as the cathode. A pump circulates freshly ionized electrolyte into the parts compartment and directs a flow of the electrolyte to periodically tumble the parts in the parts compartment. Thereafter, the parts are shaken by a shaker to level the parts to maximize the surface and electrical contact between the parts and the screen when they are settled on the screen. In alternative embodiments of the invention, the container can be of perforated panel construction. Also, the container can include a divider to partition the container into a plurality of parts compartments for electroplating a variety of different parts.

Address:

2220 132 Ave SE APT A320, Bellevue, WA 98005

VIN:

4T1BK46K77U514607

Make:

TOYOTA

Model:

CAMRY

Year:

2007