John C Liu

6423980, Jul 23, 2002

Jun 26, 2000

09/575678

Daniel W. Wilson - Glendale CA
John K. Liu - Pasadena CA
Sumith V. Bandara - Valencia CA
Sarath D. Gunapala - Valencia CA

California Institute of Technology - Pasadena CA

H01L 2906

257 21, 257436, 257460, 438 32

Techniques for coupling radiation into a quantum-well detector by using a two-dimensional array of grating cells to form at least three different grating directions to provide efficient coupling.

7450251, Nov 11, 2008

Nov 9, 2005

11/270000

Ketao Liu - Cerritos CA, US
Peter J. Sedivec - Manhattan Beach CA, US
Douglas Bender - Redondo Beach CA, US
Gregory S. Becker - Redondo Beach CA, US
John Y. Liu - San Marino CA, US
Richard W. Guthrie - Moorpark CA, US
Mark A. Lundgren - Fullerton CA, US

The Boeing Company - Chicago IL

G01C 1/03
G01B 11/26

356625, 356 309, 356614, 356620, 3561411

Systems and techniques for laser metrology. A system may include a laser source and a fanning apparatus configured to generate a fanned laser beam. The fanned laser beam may be scanned across the surface of an object, and may reflect off a plurality of targets positioned on the surface. A position detection module may determine a position of the metrology targets based on the reflected beam.

7787134, Aug 31, 2010

Apr 19, 2006

11/407549

Kirk Kohnen - Fullerton CA, US
Peter J. Sedivec - Manhattan Beach CA, US
Douglas Bender - Redondo Beach CA, US
Gregory S. Becker - Redondo Beach CA, US
John Y. Liu - San Marino CA, US
Richard W. Guthrie - Moorpark CA, US
Ketao Liu - Cerritos CA, US
Ray McVey - El Segundo CA, US
Mark A. Lundgren - Fullerton CA, US

The Boeing Company - Chicago IL

G01C 15/00

356620, 356 31, 356 311, 356622

Systems and techniques for laser metrology. Two or more fanned probe beams are scanned relative to a surface including one or more targets. A position detection module receives return beam information from the fanned probe beams, and determines a position of at least a first target of the one or more targets based on the return beam information.

7823836, Nov 2, 2010

Dec 4, 2006

11/633268

Yiu-Hung M. Ho - Palos Verdes Estates CA, US
John Y. Liu - San Marino CA, US

The Boeing Company - Chicago IL

B64G 1/24
F02K 1/00
F02K 3/00
F02K 5/00
F02K 7/00
F02K 9/00
F03H 1/00
F03H 3/00

244164, 2441586

A method and apparatus for maneuvering a satellite in orbit to alternately optimize the collection of solar energy and to take sensor data of terrestrial objects is disclosed The longitudinal axis of a large payload package is oriented perpendicular to the orbital plane to minimize the disturbance torque due to gravity gradient, and to allow simple rotation about the axis for attitude change between optimal Sun and optimal ground coverage.

8424560, Apr 23, 2013

Dec 11, 2009

12/636086

Emil P. Kartalov - Pasadena CA, US
John Liu - Gilbert AZ, US
Axel Scherer - Laguna Beach CA, US
Clive Taylor - Malibu CA, US

University of Southern California - Los Angeles CA
California Institute of Technology - Pasadena CA

F16K 31/365
F16K 31/36
F15C 3/04
F15C 1/06

13750512, 13750513, 137829, 137833

Multi-valve autoregulatory microfluidic devices and methods are described. The described devices and methods offer improved performance and new means of tuning autoregulatory effects in microfluidic devices.

20130103343, Apr 25, 2013

Oct 25, 2011

13/280344

John Y. Liu - San Marino CA, US

G06F 15/00

702141, 702150

A system and methods for calculating an attitude and a position of an object in space are disclosed. Measurements in relation to an object, stars, and a signal timing are received at a combined orbit and attitude determination system to provide received measurements. An estimated separation angle error, an estimated position error, and an estimated attitude error are estimated based upon the received measurements to provide estimated errors.

57606820, Jun 2, 1998

Mar 7, 1997

8/812584

John Yong Liu - Torrance CA
Frank Sager - Swisttal, DE

Robert Bosch GmbH - Stuttgart

B60C 2300

340444

Wheel speed values for each of four wheels are collected and analyzed for a statistical variation which would indicate low tire pressure. Prior to analysis, and following reset of the system, calibration factors are determined for each of the wheels to compensate rolling radius variations, and subsequently used to correct all wheel speed values. The corrected speed values are then filtered to exclude values which represent wheel slippage, rough road fluctuations, vehicle cornering, and uphill or downhill travel. When a sufficient number of values have been collected, an F-value is calculated substantially according to the statistical method "analysis of the variance", and the F-value is compared to an empirically determined value corresponding to a predetermined pressure loss. This comparison can provide the basis for a driver warning. Since a larger F-value indicates a larger statistical difference in wheel speeds, the value can be rechecked after a further interval for additional pressure loss.

50949748, Mar 10, 1992

Feb 28, 1990

7/488578

Frank J. Grunthaner - Glendale CA
John K. Liu - Pasadena CA
Bruce R. Hancock - Altadena CA

The United States of America as represented by the Administrator of the
National Aeronautics and Space Administration - Washington DC

H01L 2136
H01L 21363

437 85

For the growth of strain-layer materials and high quality single and multiple quantum wells, the instantaneous control of growth front stoichiometry is critical. The process of the invention adjusts the offset or phase of MBE control shutters to program the instantaneous arrival or flux rate of In and As. sub. 4 reactants to grow InAs. The interrupted growth of first In, then As. sub. 4, is also a key feature.