Dan Li

US Patent:

7500091, Mar 3, 2009

Filed:

Nov 30, 2005

Appl. No.:

11/290105

Inventors:

Cenk Ergan - Bellevue WA, US
Dan Li - Redmond WA, US
Michael R. Fortin - Redmond WA, US
Robin Giese - Bellevue WA, US
Robert L. Reinauer - Kirkland WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06F 9/44

US Classification:

713 1, 717120, 717127, 717130

Abstract:

A delay of starting up of certain applications may result in improving the overall performance of a system. The applications to be delayed may be placed in a container object or box such that they can be tracked and that other applications dependent on the delayed applications can be appropriately handled.

US Patent:

7575707, Aug 18, 2009

Filed:

Mar 29, 2005

Appl. No.:

11/097975

Inventors:

Younan Xia - Seattle WA, US
Dan Li - Los Angeles CA, US

Assignee:

University of Washington - Seattle WA

International Classification:

D01D 5/08
D01D 5/24
D01D 5/34
D01F 9/08
H05B 7/00

US Classification:

264465, 26417215, 2642091, 26421116, 264623, 264634, 264639

Abstract:

A method for electrospinning nanofibers having a core-sheath, tubular, or composite structure is disclosed. The process uses a spinneret having first and second capillaries that channel first and second fluids in the spinneret, the second capillary surrounding the first. A high voltage is applied between the spinneret and a spaced conductive collector. In one embodiment, the first fluid is a mineral oil and the second fluid is a polymeric solution that may include a polymer, a catalyst, a solvent, and a sol-gel precursor. The as-spun nanofiber includes an oil core and a composite sheath. The oil may be removed to produce a composite tubular fiber or the polymer and oil may be removed by calcination to produce a ceramic tubular fiber. In other embodiments, miscible fluids are used to produce porous nanofibers, selected additives functionalize the surfaces of the nanofibers and/or conjugated polymers are used.

US Patent:

7904142, Mar 8, 2011

Filed:

May 16, 2007

Appl. No.:

11/749283

Inventors:

Jaeho Kim - Redmond WA, US
Joseph M. Bocek - Seattle WA, US
Dan Li - Shoreview MN, US

Assignee:

Cardiac Pacemakers, Inc. - St. Paul MN

International Classification:

A61B 5/0402

US Classification:

600515

Abstract:

An apparatus comprising an implantable cardiac signal sensing circuit configured for sensing an intrinsic cardiac signal, a memory to store a template of a morphology of normal atrial-ventricular conduction, and a controller that includes a tachyarrhythmia detection circuit and a correlation circuit. The tachyarrhythmia detection circuit is configured for detecting a rhythm with elevated ventricular rate using the sensed intrinsic cardiac signal. The correlation circuit is configured for iteratively calculating a correlation between the sensed intrinsic cardiac signal and the template, and comparing the calculated correlation to a variable correlation threshold to determine whether the detected rhythm correlates to the template. The apparatus also includes a therapy circuit configured for inhibiting a ventricular tachycardia therapy when the detected rhythm correlates to the template. Other apparatuses and methods are described.

US Patent:

8260409, Sep 4, 2012

Filed:

Feb 1, 2011

Appl. No.:

13/018682

Inventors:

Jaeho Kim - Redmond WA, US
Joseph M. Bocek - Seattle WA, US
Dan Li - Shoreview MN, US

Assignee:

Cardiac Pacemakers, Inc. - St. Paul MN

International Classification:

A61B 5/0402

US Classification:

600515

Abstract:

An apparatus comprises first and second sensing circuits, a template generator circuit, and a correlation circuit. The correlation circuit is configured to identify a first fiducial position in a third cardiac signal sensed using the first sensing circuit during a detected rhythm with elevated ventricular rate, align the template correlation features and the correlation features of a fourth cardiac signal using the first fiducial position, calculate a correlation using the correlation features of the template and the correlation features of the fourth cardiac signal, and iteratively searching for a replacement to the first fiducial position in the third cardiac signal according to the calculated correlation.

US Patent:

8301244, Oct 30, 2012

Filed:

Sep 2, 2009

Appl. No.:

12/552614

Inventors:

Jaeho Kim - Redmond WA, US
Dan Li - Shoreview MN, US
Joseph M. Bocek - Seattle WA, US

Assignee:

Cardiac Pacemakers, Inc. - St. Paul MN

International Classification:

A61B 5/046

US Classification:

607 4, 600518

Abstract:

An apparatus comprises an implantable ventricular depolarization sensing circuit configured to provide a sensed ventricular depolarization signal, a timer circuit configured to provide a ventricular time interval between ventricular depolarizations, and a controller circuit communicatively coupled to the ventricular depolarization sensing circuit and the timer circuit. The controller circuit includes a ventricular tachycardia (VT) detection circuit configured to declare an episode of VT when a number of accelerated beats are detected, calculate a hysteresis VT detection threshold interval, and deem whether the episode of VT persists using the hysteresis VT detection threshold interval.

US Patent:

8437849, May 7, 2013

Filed:

Jan 30, 2007

Appl. No.:

11/668627

Inventors:

Jaeho Kim - Redmond WA, US
Joseph M. Bocek - Seattle WA, US
Dan Li - Shoreview MN, US

Assignee:

Cardiac Pacemakers, Inc. - St. Paul MN

International Classification:

A61N 1/372
A61N 1/39

US Classification:

607 14, 607 9, 607 4

Abstract:

An implantable cardioverter/defibrillator (ICD) delivers atrial pacing under several scenarios during a tachyarrhythmia episode that is detected using a ventricular rate. In various embodiments, the atrial pacing terminates the detected tachyarrhythmia and/or enhances the classification of the detected tachyarrhythmia, thus avoiding ineffective and/or unnecessary delivery of a ventricular anti-tachyarrhythmia therapy when the detected tachyarrhythmia has a supraventricular origin.

US Patent:

8470203, Jun 25, 2013

Filed:

Mar 15, 2010

Appl. No.:

12/724252

Inventors:

Richard B. Kaner - Pacific Palisades CA, US
Dan Li - Seattle WA, US
Jiaxing Huang - Berkeley CA, US

Assignee:

The Regents of the University of California - Oakland CA

International Classification:

H01B 1/00
C08G 73/00
B05D 5/12

US Classification:

252500, 528422, 427 58

Abstract:

A new method for forming stable polyaniline nanofiber colloids uses electrostatic repulsion to maintain dispersion of the nanofibers and prevent aggregation during synthesis of the nanofibers. The colloidal suspensions are formed directly from the reactants in solution maintained at a pH of about 1. 0 to about 4. 0 and a temperature of about 10 C. to about 100 C. with minimal or no stirring. Also set forth are new methods for forming ultrathin films of polyaniline nanofibers via self-assembly.

US Patent:

20070194286, Aug 23, 2007

Filed:

Feb 17, 2006

Appl. No.:

11/356790

Inventors:

Richard Kaner - Pacific Palisades CA, US
Dan Li - Seattle WA, US
Jiaxing Huang - Berkeley CA, US

International Classification:

H01B 1/12

US Classification:

252500000

Abstract:

A new method for forming stable polyaniline nanofiber colloids uses electrostatic repulsion to maintain dispersion of the nanofibers and prevent aggregation during synthesis of the nanofibers. The colloidal suspensions are formed directly from the reactants in solution maintained at a pH of about 1.0 to about 4.0 and a temperature of about 10 C. to about 100 C. with minimal or no stirring. Also set forth are new methods for forming ultrathin films of polyaniline nanofibers via self-assembly.