Kenneth C Ward

US Patent:

7388200, Jun 17, 2008

Filed:

Oct 19, 2006

Appl. No.:

11/583262

Inventors:

Duncan R. Stewart - Palo Alto CA, US
William M. Tong - Palo Alto CA, US
R. Stanley Williams - Palo Alto CA, US
Philip J. Kuekes - Palo Alto CA, US
Sean Xiao-an Zhang - Palo Alto CA, US
Kevin F. Peters - Corvallis OR, US
Kenneth J. Ward - Corvallis OR, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

G01N 27/26
G01N 33/00

US Classification:

250306, 250307, 204400, 977762, 977957

Abstract:

A sensing method includes exposing a nano-transducer having a controlled surface to a sample including at least one species. Adsorption of the species on the nano-transducer is transduced to a measurable signal as a function of time. Desorption of the species from the nano-transducer is also transduced to a measurable signal as a function of time. A residence time of the at least one species adsorbed on the nano-transducer is extracted from the measurable signals. The adsorption and desorption each define an individual measurable event.

US Patent:

44555202, Jun 19, 1984

Filed:

May 29, 1981

Appl. No.:

6/268281

Inventors:

Kenneth C. Ward - Tiburon CA
Ross Welburn - Santa Rosa CA

Assignee:

Compumotor Corporation - Petaluma CA

International Classification:

H02K 2902

US Classification:

318696

Abstract:

Stability in operating a synchronous stepping motor in mid-frequency is achieved by monitoring instantaneous power to the motor and adjusting the phase of the motor drive waveform as needed to maintain uniform speed. In an embodiment in which a pulse width modulator responds to a reference signal waveform, the phase of the reference signal waveform is varied to adjust the instantaneous power delivered to the motor.

US Patent:

20200232924, Jul 23, 2020

Filed:

Apr 2, 2020

Appl. No.:

16/838662

Inventors:

- Spring TX, US
James William STASIAK - Palo Alto CA, US
Francesco AIETA - Palo Alto CA, US
Anita ROGACS - San Diego CA, US
Mineo YAMAKAWA - Palo Alto CA, US
Kenneth WARD - Corvallis OR, US

International Classification:

G01N 21/65

Abstract:

Optical readers are disclosed in examples herein. An example optical reader including a light source to emit a light beam; and a spot pattern generator to receive the light beam and to generate a two-dimensional spot array from the light beam, the two-dimensional spot array to be directed toward a substrate having nanostructures, the two-dimensional spot array to be sensed to detect a presence or an absence of a substance of interest on the substrate.

US Patent:

20180321155, Nov 8, 2018

Filed:

Jan 29, 2016

Appl. No.:

15/764880

Inventors:

- Fort Collins CO, US
James William STASIAK - Palo Alto CA, US
Francesco AIETA - Palo Alto CA, US
Anita ROGACS - San Diego CA, US
Mineo YAMAKAWA - Palo Alto CA, US
Kenneth WARD - Corvallis OR, US

International Classification:

G01N 21/65

Abstract:

Optical readers are disclosed in examples herein. An example optical reader including a light source to emit a light beam; and a spot pattern generator to receive the light beam and to generate a two-dimensional spot array from the light beam, the two-dimensional spot array to be directed toward a substrate having nanostructures, the two-dimensional spot array to be sensed to detect a presence or an absence of a substance of interest on the substrate.