Hyun Nam Yoon

US Patent:

20070200099, Aug 30, 2007

Filed:

Mar 15, 2005

Appl. No.:

10/599443

Inventors:

Jong Lee - Seoul, KR
Chul Kim - Daejeon, KR
Hyun Yoon - Towaco NJ, US

Assignee:

DPI SOLUTIONS, INC. - Daejeon 305-345

International Classification:

H01B 1/12
B05D 5/12

US Classification:

252500000, 427058000

Abstract:

The present invention relates to a composition for coating an organic electrode and method of manufacturing an organic electrode having a excellent transparency using the composition comprising 3% to 20% by weight of a polyhydric alcohol, polyol or a mixture thereof, 5% to 10% by weight of a primary alcohol having C1 to C5, 5% to 25% by weight of a amide, sulfoxide or a mixed solvent thereof, 0.01% to 0.1% by weight of a surfactant and a aqueous solution of polyethylenedioxythiophene (PEDOT) conductive polymers having nano-sized particle in a remainder. The present invention indicates the excellent transparency that transmittance of organic conductive layer is more than 90% in the visible ray area and sheet resistance is 300 to 900 Ω/sq in case of coating. Therefore the present invention is capable of manufacturing the organic electrode such a electrode or a writing material of organic transistor, smart card, antenna, electrode of battery and fuel battery, capacitor using for PCB, inductor, electromagnetic wave cover and a sensor etc. as well as the transparency electrode using for display.

US Patent:

20100239549, Sep 23, 2010

Filed:

Apr 26, 2006

Appl. No.:

12/294858

Inventors:

Chul Hwan Kim - Daejeon, KR
Ki Seok Park - Seongnam, KR
Hyun Nam Yoon - Towaco NJ, US

Assignee:

DPI SOLUTIONS, INC. - Daejeon

International Classification:

A61K 8/49
A61Q 19/00

US Classification:

424 941, 514440

Abstract:

The present invention relates to an alpha lipoic acid capsule composition stabilized in aqueous phase, which can effectively prevent alpha lipoic acid from decomposing due to external environmental conditions, such as water, temperature, light, and the like, and can maintain the stability of alpha lipoic acid from the interaction between the lipoic acid and other materials, which are added together with the lipoic acid when the lipoic acid is applied to cosmetics, foods, or medical supplies, by mixing water-dispersed alpha lipoic acid, a water-insoluble polymer having self-emulsification properties, and a hydrophilic solvent, thus capsulating alpha lipoic acid, and to a method of preparing the same.

US Patent:

20110300479, Dec 8, 2011

Filed:

Aug 28, 2009

Appl. No.:

13/202093

Inventors:

Eui Joon Choi - Gyeonggi-do, KR
Hyun Nam Yoon - Towaco NJ, US

Assignee:

EXAX TONER, INC - Gyeongsangbuk-do

International Classification:

G03G 9/08

US Classification:

4301082, 4301103, 4301084, 4301088

Abstract:

The present invention relates to a toner composition with a broad fusing temperature range and a process for preparing the same. The toner composition according to the present invention creates entanglement between adjacent polymer chains using a non-linear polyester resin having a branch structure, provides elasticity to molten materials by the branch structure when the resin is molten, prevents the molten materials from being transferred to the surface of a roller at a high temperature, and thereby increases the maximum fusing temperature. Therefore, as the average branch number per polyester resin increases, the maximum fusing temperature rises and the fusing temperature range of the toner composition can be widened.

US Patent:

50938835, Mar 3, 1992

Filed:

Apr 26, 1991

Appl. No.:

7/691939

Inventors:

Hyun N. Yoon - New Providence NJ
Hong-Tai Man - Basking Ridge NJ

Assignee:

Hoechst Celanese Corp. - Somerville NJ

International Classification:

G02B 610

US Classification:

385130

Abstract:

This invention provides process embodiments for the production of second order nonlinear optical media and waveguiding devices. An important aspect of an invention waveguiding device is the use of a novel electrode design which permits the application of a high voltage electric field for molecular orientation of a dipolar organic waveguiding medium.

US Patent:

59945605, Nov 30, 1999

Filed:

Aug 29, 1996

Appl. No.:

8/697751

Inventors:

Hyun Nam Yoon - New Providence NJ
Mengshi Lu - New Providence NJ
Naoya Ogata - Tokyo, JP

Assignee:

Hoechst Celanese Corp. - Somerville NJ

International Classification:

C07D20920
C07B 5700
C07C 5143
C07C 53134

US Classification:

548498

Abstract:

Described herein is a novel process to resolve a racemic compound into its optically active isomers without need for chemical transformation such as salt formation. The process advantageously utilizes polymers containing chiral moieties in their repeat units as well as exhibiting critical solution temperature behavior in a suitable solvent. An embodiment describes the resolution of tryptophan.

US Patent:

49100572, Mar 20, 1990

Filed:

Apr 2, 1982

Appl. No.:

6/364824

Inventors:

Yoshiaki Ide - No. Plainfield NJ
Gabor Kiss - Summit NJ
Hyun N. Yoon - Summit NJ

Assignee:

Hoechst Celanese Corporation - Somerville NJ

International Classification:

G02B 644
B32B 900

US Classification:

428 369

Abstract:

The present invention provides a highly elongated member of substantially uniform cross-sectional configuration which is capable of improved service as a stiffening support in an optical fiber cable. Such elongated member is the product of melt extrusion through an appropriate orifice of a thermotropic liquid crystalline polymer (as described). The resulting elongated member has been found to offer significant advantages when compared to stiffening supports heretofore proposed for use in optical fiber cables.

US Patent:

48228656, Apr 18, 1989

Filed:

Nov 10, 1987

Appl. No.:

7/120253

Inventors:

Ronald N. De Martino - Wayne NJ
Hyun N. Yoon - New Providence NJ

Assignee:

Hoechst Celanese Corp. - Somerville NJ

International Classification:

C08F 1800

US Classification:

5262922

Abstract:

This invention provides novel isotropic acrylic copolymers which exhibit nonlinear optical response, and which have utility as a transparent optical component in optical light switch and light modulator devices. An invention isotropic acrylic copolymer is illustrated by the following structure: ##STR1##.

US Patent:

57469490, May 5, 1998

Filed:

Nov 21, 1995

Appl. No.:

8/561607

Inventors:

Sunny S. Shen - Holmdel NJ
David W. Polis - Redondo Beach CA
Hyun N. Yoon - New Providence NJ
Tze-Pei Tien - Basking Ridge NJ

Assignee:

Hoechst Celanese Corp. - Somerville NJ

International Classification:

F21V 914
C09K 1900

US Classification:

252585

Abstract:

This invention provides novel liquid crystalline polymers which comprise, in the repeat units of their main chains, residues of suitable dichroic dyes. The polymers yield polarizer films with superior polarizing efficiency, transmittance, dichroic ratio, and thermal and humidity stability. The invention further discloses suitable processes to prepare such polymers and polarizer films therefrom.