Christopher Day

US Patent:

20090266416, Oct 29, 2009

Filed:

Apr 7, 2009

Appl. No.:

12/419936

Inventors:

Sarah H. Tolbert - Encino CA, US
Benjamin J. Schwartz - Encino CA, US
Yves Rubin - Los Angeles CA, US
Merissa Halim - Diamond Bar CA, US
Darcy Wanger - Long Beach CA, US
Christopher J. Tassone - Los Angeles CA, US
Alexander L. Ayzner - Los Angeles CA, US
Robert D. Kennedy - Los Angeles CA, US
Christopher Day - Los Angeles CA, US

International Classification:

H01L 31/00

US Classification:

136256

Abstract:

Described herein are photovoltaic devices including self-assembling fullerene derivatives. In one embodiment, a photovoltaic device includes a first electrode layer, a second electrode layer, and an active layer disposed between the first electrode layer and the second electrode layer. The active layer is configured to absorb incident light to produce a first type of charge carrier that is transported to the first electrode layer and a second type of charge carrier that is transported to the second electrode layer. The active layer includes self-assembled molecules of a fullerene derivative to provide a conductive path through at least a portion of the active layer.

US Patent:

20130148250, Jun 13, 2013

Filed:

Dec 13, 2011

Appl. No.:

13/324609

Inventors:

Christopher Alan Day - Westminster CA, US
Jeffrey Jacob Brown - Rancho Santa Margarita CA, US
Kenneth Maxwell Hays - Santa Ana CA, US

Assignee:

THE BOEING COMPANY - Chicago IL

International Classification:

H01F 38/00

US Classification:

361149

Abstract:

A method and system of using a common set of coils to provide at least two of magnetic flux, heat and degaussing in a mobile platform are provided. In accordance with one embodiment, the method involves oscillation of current in the coils at a frequency higher than a defined pointing requirement to provide heat. In accordance with another aspect, the coil functions as a degausser by energizing the coil with an oscillating current that decreases in amplitude over time.

US Patent:

41379071, Feb 6, 1979

Filed:

Dec 27, 1976

Appl. No.:

5/754387

Inventors:

William D. Jansen - Palo Alto CA
Jerry D. Haney - Sunnyvale CA
Christopher C. Day - Newtonville MA
Stephen A. Schneeberger - West Hartford CT

Assignee:

American Optical Corporation - Southbridge MA

International Classification:

A61B 502

US Classification:

128 205M

Abstract:

Improved method and apparatus for identifying and quantizing a substantially periodic, steeply rising wavefront of a signal in the possible presence of low amplitude interference. A time derivative of at least the steep wavefront is obtained. The derivative is then integrated over a predetermined interval in each of successive repetitions of the steep wavefront, the interval being that during which the derivative exceeds a reference level. A threshold value is established, preferably dynamically, to verify or validate that when the derivative exceeds the reference level it indeed represents the steeply rising wavefront. The integrated derivative is recognized as the quantized value of the steeply rising wavefront only if such verification occurs. The invention is suited to oscillometric determination of systolic pressure in a patient, where measurement of signal amplitude is preferably achieved by integrating the time derivative of the systolic rise wavefront.