Daniel S ChoiSanta Clarita, CA

6756594, Jun 29, 2004

Jan 26, 2001

09/771447

Thomas George - La Crescenta CA
Daniel S. Choi - Los Angeles CA
Eric Jones - Los Angeles CA

California Institute of Technology - Pasadena CA

G01N 2161

250343

A device for utilizing an optical infrared emitter/detector to sense substances of interest is provided. The infrared emitter/detector comprises a single crystal semiconductor, photonic band gap structure which functions both as an infrared emitter, a narrow-band filter, and as a broad-band infrared bolometer detector to exert wavelength control directly on the active element emitter/detector surface using the periodic symmetry of the photonic band gap structure to produce narrow wavelength âforbiddenâ optical transmission bands or modes to sense the presence of a specified substance in the environment. A system and method for sensing specific substances using the optical infrared emitter/detector of this invention in a sensor device is also provided. Finally, a method of manufacturing the infrared emitter/detectors of the present invention is also provided.

6803840, Oct 12, 2004

Apr 1, 2002

10/113247

Brian D. Hunt - La Cresenta CA
Flavio Noca - Altadena CA
Michael E. Hoenk - Valencia CA
Larry Epp - Pasadena CA
Daniel J. Hoppe - La Ca{overscore (n)}ada CA
Robert S. Kowalcyk - Santa Clarita CA
Daniel S. Choi - Los Angeles CA

California Institute of Technology - Pasadena CA

H03H 924

333186, 333197, 4234473, 310 36, 310 37, 205766, 205768

A tunable nanomechanical oscillator device and system is provided. The nanomechanical oscillator device comprising at least one nanoresonator, such as a suspended nanotube, designed such that injecting charge density into the tube (e. g. by applying a capacitively-cuopled voltage bias) changes the resonant frequency of the nanotube, and where exposing the resonator to an RF bias induces oscillitory movement in the suspended portion of the nanotube, forming a nanoscale resonator, as well as a force sensor when operated in an inverse mode. A method of producing an oriented nanoscale resonator structure with integrated electrodes is also provided.

7175762, Feb 13, 2007

Jun 6, 2003

10/455873

Flavio Noca - Altadena CA, US
Brian D. Hunt - La Crescenta CA, US
Michael J. Bronikowski - Altadena CA, US
Michael E. Hoenk - Valencia CA, US
Robert S. Kowalczyk - Santa Clarita CA, US
Daniel S. Choi - Los Angeles CA, US
Fei Chen - San Marino CA, US

California Institute of Technology - Pasadena CA

B01D 46/50
B01D 63/00
B01D 57/02

21050022, 21032175, 21032184, 210488, 210503, 204450, 204600, 977720, 977742, 977746, 977725

A nanofeature particulate trap comprising a plurality of densely packed nanofeatures, such as nanotubes, and a particulate detector incorporating the nanofeature particulate trap are provided. A method of producing a nanotrap structure alone or integrated with a particulate detector is also provided.

8187865, May 29, 2012

May 29, 2009

12/455186

Minhee Yun - La Crescenta CA, US
Nosang Myung - Rosemead CA, US
Richard Vasquez - Altadena CA, US
Margie Homer - Pasadena CA, US
Margaret Ryan - Pasadena CA, US
Jean-Pierre Fleurial - Altadena CA, US
Ratnakumar Bugga - Arcadia CA, US
Daniel Choi - Los Angeles CA, US
William Goddard - Pasadena CA, US
Abhijit Shevade - Pasadena CA, US
Mario Blanco - Temple City CA, US
Tahir Cagin - Arcadia CA, US
Wely Floriano - Pasadena CA, US

California Institute of Technology - Pasadena CA

C12M 1/34
C12M 3/00

4352872, 977762, 422 681, 422 8201, 422 8202, 4352831, 4352871, 4352883

The present invention relates to a nanowire sensor and method for forming the same. More specifically, the nanowire sensor comprises at least one nanowire formed on a substrate, with a sensor receptor disposed on a surface of the nanowire, thereby forming a receptor-coated nanowire. The nanowire sensor can be arranged as a sensor sub-unit comprising a plurality of homogeneously receptor-coated nanowires. A plurality of sensor subunits can be formed to collectively comprise a nanowire sensor array. Each sensor subunit in the nanowire sensor array can be formed to sense a different stimulus, allowing a user to sense a plurality of stimuli. Additionally, each sensor subunit can be formed to sense the same stimuli through different aspects of the stimulus. The sensor array is fabricated through a variety of techniques, such as by creating nanopores on a substrate and electrodepositing nanowires within the nanopores.

2003005, Mar 20, 2003

Feb 22, 2001

09/791493

Flavio Noca - Altadena CA, US
Jingming Xu - Providence RI, US
Daniel Choi - Los Angeles CA, US
Brian Hunt - La Crescenta CA, US
Michael Hoenk - Valencia CA, US
Robert Kowalczyk - Santa Clarita CA, US

G01N027/27

204/450000, 204/600000

A device for utilizing a non-gel self-assembled nano-feature array molecular sieve for analyzing molecules is provided. The molecular sieve device comprises an ordered array of self-assembled nano-features which function as a molecular sieve to separate molecules based on a suitable characteristic. A system for integrating the non-gel ordered self-assembled nano-feature array molecular sieve of this invention into a device for separating molecules based on a characteristic and a method for separating a wide range of molecules using the non-gel ordered self-assembled nano-feature array molecular sieve of the invention are also provided.