Gang Chen

US Patent:

6459487, Oct 1, 2002

Filed:

Sep 4, 2001

Appl. No.:

09/944126

Inventors:

Gang Paul Chen - Monterey Park CA 91754
Avishay Eyal - Pasedena CA 91106
Anthony S. Kewitsch - Santa Monica CA 90402
Victor Leyva - Pasedena CA 91104
George A. Rakuljic - Santa Monica CA 90402

International Classification:

G01B 902

US Classification:

356491, 356492

Abstract:

Optical components, particularly microoptic glass components used in synthesizing birefringence in filter systems based on polarization interferometer techniques, are fabricated using systems and methods which provide accurate frequency periodicity measurements. These measurements are derived from differential delays induced by in-process glass elements between beam components in a polarization interferometer unit and from progressive wavelength scanning across a wavelength band of interest. The consequent sinusoidal output variation has peak to peak spacings which are measured to provide frequency periodicity values from which precise length corrections for the optical elements can be calculated.

US Patent:

6546167, Apr 8, 2003

Filed:

Dec 11, 2001

Appl. No.:

10/014324

Inventors:

Gang Chen - Walnut CA
Stephanus J. Spammer - Painted Post NY

Assignee:

Corning Incorporated - Corning NY

International Classification:

G02B 628

US Classification:

385 24, 385 37, 385 46, 359130

Abstract:

One aspect of the invention is an optical add/drop multiplexer. The optical add/drop multiplexer includes a first optical circulator, the first circulator includes a first port, a second port, and a third port. The optical add/drop multiplexer also includes a first tunable grating coupled to the first port and a second tunable grating coupled to the first grating. The optical add/drop multiplexer further includes a second optical circulator, the second optical circulator includes a fourth port, coupled to the second grating; a fifth port, and a sixth port. Wherein the first tunable grating is a fiber Bragg grating and wherein the second tunable grating is a fiber Bragg grating.

US Patent:

6846113, Jan 25, 2005

Filed:

May 15, 2003

Appl. No.:

10/438411

Inventors:

Xian-Li Yeh - Walnut CA, US
Gang Paul Chen - Walnut CA, US

International Classification:

H04N 595

US Classification:

385 88, 385 90, 385 91

Abstract:

Locally heated low temperature solder glass is used to permanently fix an optical fiber with sub-micron precision to a glass ceramic submount inside a high power pump laser module. The fiber is manipulated into a predetermined alignment while the solder glass is still molten and the solder glass is then cooled to its solidified state. The predetermined alignment may include an offset to compensate for subsequent thermally related dimensional changes as the solder glass cools and solidifies. If necessary, the solder glass can be remelted and the fiber realigned with a different offset if the first alignment attempt is less than optimal. This alignment process has been demonstrated to provide reliable and efficient coupling of an optical fiber to a high power pump laser within very tight tolerances. A similar process can also be applied to other micro-optics assemblies where high precision, high reliability fiber fixing is required.

US Patent:

8491869, Jul 23, 2013

Filed:

Mar 23, 2010

Appl. No.:

12/661777

Inventors:

Umesh B. Gangadharmath - Los Angeles CA, US
Hartmuth C. Kolb - Playa Del Rey CA, US
Peter J. H. Scott - Ypsilanti MI, US
Joseph C. Walsh - Pacific Palisades CA, US
Wei Zhang - Los Angeles CA, US
Anna Katrin Szardenings - Torrance CA, US
Anjana Sinha - San Diego CA, US
Gang Chen - Los Angeles CA, US
Eric Wang - San Diego CA, US
Chul Yu - Los Angeles CA, US
Changhui Liu - Los Angeles CA, US
Daniel Kurt Cashion - Manhattan Beach CA, US
Dhanalakshmi Kasi - Los Angeles CA, US

Assignee:

Eli Lilly and Company - Indianapolis IN

International Classification:

A61K 51/00
A61M 36/14

US Classification:

424 189, 424 111, 424 165, 424 181, 424 185

Abstract:

Imaging agents of formula (I) and methods for detecting neurological disorders comprising administering ti a patient in need compounds of formula (I) capable of binding to tau proteins and β-amyloid peptides are presented herein. The invention also relates to methods of imaging Aβ and tau aggregates comprising introducing a detectable quantity of pharmaceutical formulation comprising a radiolabeled compound of formula (I) and detecting the labeled compound associated with amyloid deposits and/or tau proteins in a patient. These methods and compositions enable preclinical diagnosis and monitoring progression of AD and other neurological disorders.

US Patent:

7362101, Apr 22, 2008

Filed:

Apr 25, 2006

Appl. No.:

11/411257

Inventors:

Lutfi Muftuler - Aliso Viejo CA, US
Gang Chen - Irvine CA, US
Orhan Nalcioglu - Laguna Beach CA, US

Assignee:

The Regents of the University of California - Oakland CA

International Classification:

G01V 3/00
B23P 17/04
H01F 7/06

US Classification:

324318, 29592, 296021, 29605

Abstract:

An MRI RF coil that is optimized for SENSE imaging is used in a method where the surface current density distribution on a coil former was calculated to maximize the SNRwithin a volume of interest. An analytic relationship was formulated between the SNRand surface current density on the coil former. The SNR at pixel ρ in a SENSE-MR image, SNR, is inversely proportional to the g-factor. The g-factor was formulated in terms of the B distribution of the coils. By specifying the geometry of the desired coil former and using a finite element mesh, the surface current distribution was calculated to maximize the SNR, by minimizing (1/SNR) in the volume of interest using a least squares procedure. A simple two-coil array was tested and phantom images were collected. The results show that the new coil design method yielded better uniformity and SNR compared to standard coils.

US Patent:

20020085252, Jul 4, 2002

Filed:

Jul 5, 2001

Appl. No.:

09/898469

Inventors:

Gang Chen - Monterey Park CA, US
Avishay Eyal - Pasedena CA, US
Anthony Kewitsch - Santa Monica CA, US
Victor Leyva - Pasedena CA, US
William Marshall - Pasedena CA, US
George Rakuljic - Santa Monica CA, US
Xiaolin Tong - Irine CA, US
Xian Yeh - Walnut CA, US
Don Zambos - Santa Monica CA, US

International Classification:

H04J014/06

US Classification:

359/122000

Abstract:

Interleavers for optical systems, including multiplexers and demultiplexers, are based on the use of non-birefringent elements in combination with polarization beam splitter to provide differential retardation effects for generation of precise transmittance functions. The retardation elements, in one particular example, are non-birefringent glasses arranged in individually athermal stages but the optical beams propagated through them are maintained in selected polarization states in each stage. Between or within the stages the polarization vectors are varied to match phase to a selected standard, such as an ITU grid. Within the stages, selected beam angle adjustments are made to shape the output transmittance characteristic.

US Patent:

20030035172, Feb 20, 2003

Filed:

Aug 17, 2001

Appl. No.:

09/932221

Inventors:

Gang (Paul) Chen - Monterey Park CA, US
Mark Krol - Painted Post NY, US
Yongqian Liu - Richardson TX, US
Qi (Chris) Wu - Eaton Town NJ, US

International Classification:

G02B006/28
H04J014/02

US Classification:

359/127000, 385/024000

Abstract:

A tunable, reconfigurable optical add/drop multiplexer comprises a first signal routing component and at least one wavelength selective switch having an input port and an output port. The input port is optically coupled to the first signal routing component. The wavelength signal selective switch is wavelength tunable, so as to allow a selected wavelength to be routed to the first signal routing component and the rest of the wavelengths to be routed to the output port. According to an embodiment of the present invention the first signal routing component is an optical circulator.

US Patent:

20130266274, Oct 10, 2013

Filed:

Apr 8, 2013

Appl. No.:

13/858932

Inventors:

- New Taipei, TW
YUAN-CHIEH LIN - Lake Forest CA, US
JIM ZHAO - Irvine CA, US
GANG PAUL CHEN - Walnut CA, US
JIE ZHENG - Rowland-Heights CA, US
JI LI - West Covina CA, US
AN-JEN YANG - Irvine CA, US

Assignee:

HON HAI PRECISION INDUSTRY CO., LTD. - New Taipei

International Classification:

G02B 6/42
G02B 6/43

US Classification:

385 89

Abstract:

An object of the present invention is to provide a new modular SLC (Surface Laminar Circuit) interconnect system for replacing the traditional ceramic substrate implanted with 56 Duece modules, the interconnect system includes an organizer for accurately positioning the connector assemblies, and a plurality of fully populated connector housings defining a pitch same as that defined by the Duece modules. Each connector housing defines two receiving slots to receive two SLC modules which are further commonly held by a heat sink above. Each SLC module is equipped with a plurality of micro-controllers, a plurality of OE glass lenses, a plurality of IC chips, and a molded lens and fiber able assembly.