Young D Choi

US Patent:

6595451, Jul 22, 2003

Filed:

Jan 29, 2002

Appl. No.:

10/059536

Inventors:

Dong-Hun Kang - Pusan, KR
Young J. Choi - Oakland NJ

Assignee:

Komelon Corporation - Pusan

International Classification:

B65H 7548

US Classification:

2423812, 2423813, 33767

Abstract:

Disclosed herein is a tape locking device for tape measures. The tape locking device comprises a locking lever hinged to an upper portion of the wall of the housing in such a way to be rotated frontward and rearward around a hinged joint, and provided with a connecting piece downwardly extending from the locking lever. A cylinder is connected at its first end to a hole formed at the lower portion of the connecting piece, with a coil spring fitted over the cylinder. A wedge-shaped stopper is connected to the second end of the cylinder, and having a desired frictional force. This stopper is elastically biased by the coil spring to be wedged in the gap between the outer circumferential surface of a wound part of the tape around the bobbin and a linear part of the tape led to the slot when releasing the locking lever after drawing a desired length of tape from the slot, so the drawn tape is automatically locked by frictional contact between the stopper surface and the drawn tape surface.

US Patent:

7178257, Feb 20, 2007

Filed:

Jul 6, 2005

Appl. No.:

11/174561

Inventors:

Dong Hun Kang - Busan, KR
Young Joon Choi - Oakland NJ, US

Assignee:

Komelon Corporation - Busan

International Classification:

G01B 3/10

US Classification:

33761

Abstract:

A tape measure includes an automatic blade extension mechanism. The tape measure allows a user to draw and lock a blade using only one hand, when measuring a dimension of an object, thus allowing the other hand to be freely used in a workplace where several operations must be carried out. Therefore, the tape measure allows the user to simultaneously perform a cutting operation, a hammering operation, a marking operation, etc. during the measuring operation. Thereby, the tape measure of this invention is convenient to use, and increases work efficiency.

US Patent:

8607043, Dec 10, 2013

Filed:

Jan 30, 2012

Appl. No.:

13/361536

Inventors:

Iftekhar Rahman - Billerica MA, US
Young Rak Choi - Belle Mead NJ, US

Assignee:

Cellco Partnership - Basking Ridge NJ

International Classification:

H04L 29/06

US Classification:

713155, 713183, 726 5

Abstract:

To support authentication of a mobile device, an application server obtains an application identifier and password and creates an encrypted value by encrypting a combination of the password and a time-based value. The application server transmits the application identifier and encrypted value over a communication network to the mobile device as a credential, and the mobile device sends the credential over the network to a secure server providing an application assistance service. The secure server independently computes an encrypted value by encrypting the combination of the password and the time-based value. If the encrypted value from the received credential matches the encrypted value computed by the secure server, that server grants access to the assistance service for the mobile device.

US Patent:

20080171575, Jul 17, 2008

Filed:

Jan 16, 2007

Appl. No.:

11/653354

Inventors:

Young Rak Choi - Palisades Park NJ, US
Steven Kim - Palisades Park NJ, US

Assignee:

HealthPia America - Palisades Park NJ

International Classification:

H04B 1/40

US Classification:

455557

Abstract:

A communication device includes a processing part attached to a surface of the communication device for receiving first and second signals from the communication device and including a plurality of first contacts on a surface thereof, and a storage part mounted on the processing part and connected to the plurality of first contacts, wherein the processing part transmits a third signal to the communication device in response to the first signal and the processing part transfers the second signal from the communication device to the storage part in accordance with a portion of the second signal.

US Patent:

20100212175, Aug 26, 2010

Filed:

Feb 24, 2009

Appl. No.:

12/380086

Inventors:

Young Joon Choi - Oakland NJ, US

International Classification:

G01B 3/10

US Classification:

33761

Abstract:

A tape measure is disclosed which includes speed control device which allows the user to control the speed at which the extended tape is retracted into the housing. The housing defines a chamber and has a peripheral wall with a slot-shaped opening. A coiled tape blade within the housing is attached at it's interior end to a spring which allows automatic retraction of the tape into the housing. The speed control device is attached to the outside of the housing above the slot shaped opening. Another opening in the housing exposes the tape so that a roller controlled by pressure from the speed control device will make contact with the tape in the event the user exerts pressure on the device. Said device is unaffected by various environmental conditions such as saw dust, particulate contamination or moisture. A handle is attached to the rear end of the housing, opposite to the speed control device, to facilitate manipulation and use of the tape measure.

US Patent:

55444202, Aug 13, 1996

Filed:

Feb 14, 1995

Appl. No.:

8/388363

Inventors:

Young J. Choi - Oakland NJ

International Classification:

G01B 310
G01D 1128

US Classification:

33760

Abstract:

A combination tape measure and light bulb assembly disclosed. A light bulb assembly is affixed to the free end of a semi rigid tape measure. A strip of electrically conductive material is applied to the bottom of the tape measure, with various electrical switching mechanisms described to connect this strip of material to a source of electric current, and thereby light the bulb whenever required by the operator. The light bulb assembly includes a reflector plate for increasing illumination coming from the bulb, and a clear plastic shield for the bulb. The light bulb assembly can also include a magnet to further add to the utility of the combination.

US Patent:

57017549, Dec 30, 1997

Filed:

Sep 29, 1995

Appl. No.:

8/536388

Inventors:

Young Tai Choi - Monroe NY
Yeung H. Huh - Poughkeepsie NY

International Classification:

B60H 132

US Classification:

62244

Abstract:

A new and improved automobile refrigerator comprising, in combination, an automobile dashboard having an exterior surface with a recess formed therein. A door is positioned over the recess to selectively open and close the recess. A hinge couples the lower edge of the door with the lower edge of the recess to allow the pivoting of the door to provide or prohibit access to the space within the recess interior of the dashboard. A box in the recess behind the door has upper and lower walls, side walls and a rear wall in the box-like configuration with an opening in the front of the walls terminating at the dashboard. Thermal insulation is located along all of the walls including the front door to abate the flow of thermal energy to and from the space within the box. A rectangular gasket is formed on the interior surface of the door adapted to contact the dashboard adjacent to the periphery of the opening. Flexible connectors have upper ends coupled to the box at upper extents thereof.

US Patent:

20220326158, Oct 13, 2022

Filed:

Mar 28, 2022

Appl. No.:

17/706281

Inventors:

- Cambridge MA, US
Young Jun CHOI - Cambridge MA, US
John D. KULMAN - Belmont MA, US
Douglas E. WILLIAMS - Boston MA, US

Assignee:

Codiak BioSciences, Inc. - Cambridge MA

International Classification:

G01N 21/64
G01N 21/76

Abstract:

Described herein are novel rapid and reliable methods of detection of extracellular vesicles and quantifying extracellular vesicle concentrations and absolute number from various sources, including raw cell harvest. The methods described herein comprise detection of intrinsic fluorescence of extracellular vesicles in biological samples. Extracellular vesicles analyzed by the methods of this application have a stereotypical elution profile distinct from known contaminants. The methods described herein are a significant improvement over the state of the art and fulfills an unmet need in the field of extracellular vesicle manufacturing and quality control.