Eun Joo Kim

7224132, May 29, 2007

Jan 22, 2004

10/761313

Chahee Peter Cho - Centreville VA, US
Eun S. Kim - Centreville VA, US

Wavecrest Laboratories, LLC. - Rochester Hills MI

H02P 1/00

318139, 290 9, 290 17, 320136, 320149, 180 651

A portable range extender is provided for an electric vehicle having a vehicle controller, and an electric traction motor powered by a battery. The portable range extender has an engine, a dynamoelectric machine coupled to the engine by a shaft and electrically connectable to the vehicle, and a range extender controller for controlling operations of the range extender independently of the vehicle controller. The range extender controller monitors voltage of the battery to automatically activate the range extender when the battery voltage is less than a first threshold value and automatically deactivate the range extender when the battery voltage reaches a second threshold value. The dynamoelectric machine operates as a motor for starting the engine when the battery voltage is less than the first threshold value. In response to prescribed engine conditions, the range extender controller operates the dynamoelectric machine as a generator driven by the engine to generate electric power supplied to the vehicle.

7259664, Aug 21, 2007

Jun 16, 2004

10/868349

Chahee Peter Cho - Lansdale PA, US
Eun Shik Kim - Centreville VA, US

B60Q 1/00

3404502, 180 652, 3404503, 701 22

Sensorless fuel level and oil change indicators are provided in a range extender for an electric vehicle. The range extender includes an engine, and an electric generating device driven by the engine to generate electric power supplied to the vehicle. The fuel level is calculated based on the generated power. The oil change indicator indicates that the oil should be changed when the number of engine rotor revolutions exceeds a threshold value. The electric generating device may be a dynamoelectric machine coupled to the engine by a shaft to operate as a motor for starting the engine. In response to prescribed engine conditions, the dynamoelectric machine is switched to operate as a generator driven by the engine to generate the electric energy.

7449793, Nov 11, 2008

Feb 18, 2004

10/779600

Chahee Peter Cho - Centreville VA, US
Eun Shik Kim - Centreville VA, US

Bluwav Systems, LLC - Rochester Hills MI

F02B 63/04
H02K 7/18
F02D 29/06
H02P 9/04

290 1A, 290 40 B

A portable range extender can be used to supply electrical power to an electric vehicle operable by an electric traction motor. The portable range extender includes an engine, a dynamoelectric machine coupled to the engine by a shaft, an autonomous range extender controller for controlling operations of the range extender independently of a controller for the vehicle, and circuitry associated with the engine and machine. To start operation, electrical energization is applied from the vehicle battery to the dynamoelectric machine for operation as a motor to drive the shaft. As the shaft accelerates, the rotational speed of the shaft and the temperature of the engine are sensed. When the speed and temperature obtain predetermined thresholds, fuel is supplied to the engine and ignition is activated. The engine then operates as a prime mover to drive the shaft in lieu of the machine. After a period of engine prime mover operation, the machine is activated for operation as a generator to provide an electrical current output for charging the battery or supplying energy to the traction motor.

7537070, May 26, 2009

Jun 22, 2004

10/872785

Boris A. Maslov - Reston VA, US
Chahee Peter Cho - Lansdale PA, US
Eun S. Kim - Centreville VA, US

BluWav Systems LLC - Rochester Hills MI

B60K 6/00

180 652, 180 654

A portable range extender can be used to supply electrical power to an electric vehicle operable by an electric traction motor. The portable range extender includes an engine, a dynamoelectric machine coupled to the engine by a shaft, an autonomous range extender controller for controlling operations of the range extender independently of a controller for the vehicle, and circuitry associated with the engine and machine. The range extender and its controlling circuitry are self contained within an enclosure. The enclosure is partitioned to form two sections, a first section housing the dynamoelectric machine and the second section housing the engine. Windows in the enclosure provide a path for air cooling of the range extender components. Air cooling is facilitated by a first set of cooling fins mounted on the rotor of the dynamoelectric machine at an end proximate an air inlet window, a second set of cooling fins mounted on the rotor of the dynamoelectric machine in the vicinity of an opening in the partition, and a third set of cooling fins mounted on the engine at the opposite side of the partition opening.

20080182805, Jul 31, 2008

Jan 18, 2007

11/654647

John Hanover - Rockville MD, US
Dona Love - Rockville MD, US
Eun Ju Kim - Bethesda MD, US
Melissa Perreira - Alexandria VA, US
Craig Thomas - Gaithersburg MD, US

The Gov. of the U.S.A., as represented by the Secretary, Dept of Health And Human Services - Rockville MD

A61K 31/7028
C07H 15/18
C12Q 1/48
C07H 17/04

514 42, 536 291, 536 172, 435 15

An O-GlcNAcase-specific inhibitor and substrate are engineered by the extension of the N-Acetyl Moiety of O-(2-acet-amido-2-deoxy-D-glucopyranosylidene)amino-N-phenylcarbamate (PUGNAc). The reagent substrate includes a fluorophor and the inhibitor. This reagent substrate is for high-throughput analysis of O-GlcNAcase within cellular assays and imaging agent for the in vivo analysis of O-GlcNAcase.