Jeffrey S Urban

US Patent:

20130084464, Apr 4, 2013

Filed:

Nov 26, 2012

Appl. No.:

13/685505

Inventors:

The Regents of the University of California - Oakland CA, US
Jeffrey J. Urban - Emeryville CA, US
Rachel A. Segalman - Pleasanton CA, US
Nelson E. Coates - Oakland CA, US
Shannon K. Yee - Berkeley CA, US

Assignee:

THE REGENTS OF THE UNIVERSITY OF CALIFORNIA - Oakland CA

International Classification:

H01B 1/12

US Classification:

428626, 252500, 428375, 428379, 977755

Abstract:

The present invention provides for an inorganic nanostructure-organic polymer heterostructure, useful as a thermoelectric composite material, comprising (a) an inorganic nanostructure, and (b) an electrically conductive organic polymer disposed on the inorganic nanostructure. Both the inorganic nanostructure and the electrically conductive organic polymer are solution-processable.

US Patent:

20170069813, Mar 9, 2017

Filed:

Sep 1, 2016

Appl. No.:

15/254412

Inventors:

Jeffrey J. Urban - Emeryville CA, US
Jared Lynch - Fremont CA, US
Nelson Coates - Oakland CA, US
Jason Forster - Berkeley CA, US
Ayaskanta Sahu - Berkeley CA, US
Michael Chabinyc - Santa Barbara CA, US
Boris Russ - Berkeley CA, US

Assignee:

The Regents of the University of California - Oakland CA

International Classification:

H01L 35/16
H01L 35/02
C09D 5/24
C09D 1/00
C09D 5/26
H01L 35/34
C01B 19/00

Abstract:

This disclosure provides systems, methods, and apparatus related to thermoelectric materials. In one aspect, a method includes providing a plurality of nanostructures. The plurality of nanostructures comprise a thermoelectric material, with each nanostructure of the plurality of nanostructures having first ligands disposed on a surface of the nanostructure. The plurality of nanostructures is mixed with a solution containing second ligands and a ligand exchange process occurs in which the first ligands disposed on the plurality of nanostructures are replaced with the second ligands. The plurality of nanostructures is deposited on a substrate to form a layer. The layer is thermally annealed.

US Patent:

20170012711, Jan 12, 2017

Filed:

Sep 20, 2016

Appl. No.:

15/270886

Inventors:

- Mountain View CA, US
Jeffrey Stuart Urban - Mountain View CA, US

International Classification:

H04B 10/54
G08C 23/04
H04W 12/06
H04B 10/114

Abstract:

Disclosed systems and methods transmit and receive data encoded as optical signals that include a progression of symbols, with each symbol represented as a combination of light frequencies. Light is used as the carrier medium to limit reception to devices that are within visible range of the transmitting device. No mapping of data to symbols is required for generation of the symbol progression by the transmitter and no mapping of symbols to data for recognition of the symbols is required by the receiver. Disclosed embodiments allow arbitrary selection among a plurality of mappings between symbols sent and symbols received. Embodiments are robust to: ambient lighting conditions, differences in optical and temporal response of the first and second devices, and differences in relative orientation between the first and second devices. Embodiments enable a variety of functions including device discovery, feature discovery, beacon identification, status reporting, error readout, key exchange, and authentication.