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Hyun N. Yoon
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Morristown, NJ, US
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last 30 patents
Information
Patent Grant
Spectrally tuned multiple bandpass filters for video displays
Patent number
6,165,546
Issue date
Dec 26, 2000
Asahi Glass Company, Limited
Chia-Chi Teng
G02 - OPTICS
Information
Patent Grant
Polyester toner composition for electrophotographic imaging systems
Patent number
6,090,516
Issue date
Jul 18, 2000
Hoechst Celanese Corporation
Eui-Won Choe
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Polyester toner composition for electrophotographic imaging systems
Patent number
6,090,973
Issue date
Jul 18, 2000
Hoechst Celanese Corporation
Marie Borzo
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
193 nm positive-working photoresist composition
Patent number
6,060,212
Issue date
May 9, 2000
Clariant Finance (BVI) Limited
Iain McCulloch
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Toner particles for electrophotographic imaging applications
Patent number
6,001,524
Issue date
Dec 14, 1999
HNA Holdings, Inc.
Hyun-Nam Yoon
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Polyester toner composition for electrophotographic imaging systems
Patent number
6,001,980
Issue date
Dec 14, 1999
Hoechst Celanese Corporation
Marie Borzo
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Water soluble negative-working photoresist composition
Patent number
5,998,092
Issue date
Dec 7, 1999
Clariant International, Ltd.
Iain McCulloch
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Resolution of racemic mixtures using polymers containing chiral units
Patent number
5,994,560
Issue date
Nov 30, 1999
Hoechst Celanese Corp.
Hyun Nam Yoon
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Liquid crystal display devices incorporating polarizers comprising...
Patent number
5,851,423
Issue date
Dec 22, 1998
Hoechst Celanese Corporation
Chia-Chi Teng
G02 - OPTICS
Information
Patent Grant
Polyester toner microspheres for electrophotographic imaging systems
Patent number
5,843,609
Issue date
Dec 1, 1998
Hoechst Celanese Corp.
Marie Borzo
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Spectrally tuned multiple bandpass filters for video displays
Patent number
5,834,122
Issue date
Nov 10, 1998
Hoechst Celanese Corp.
Chia-Chi Teng
G02 - OPTICS
Information
Patent Grant
Polarizer films with high thermal and hygroscopic stability
Patent number
5,753,145
Issue date
May 19, 1998
Hoecst Celanese Corp.
Chia-Chi Teng
G02 - OPTICS
Information
Patent Grant
Polarizer films comprising aromatic liquid crystalline polymers com...
Patent number
5,746,949
Issue date
May 5, 1998
Hoechst Celanese Corp.
Sunny S. Shen
G02 - OPTICS
Information
Patent Grant
Resolution of racemic mixtures using polymers containing chiral units
Patent number
5,739,383
Issue date
Apr 14, 1998
Hoechst Celanese Corp.
Hyun-Nam Yoon
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Laminates of liquid crystalline polymeric films for polarizer appli...
Patent number
5,738,918
Issue date
Apr 14, 1998
Hoechst Celanese Corp.
Sunny S. Shen
G02 - OPTICS
Information
Patent Grant
Process for preparing high performance polarizer films
Patent number
5,707,566
Issue date
Jan 13, 1998
Hoechst Celanese Corp.
Sunny S. Shen
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polarizer films comprising wholly aromatic liquid crystalline polym...
Patent number
5,672,296
Issue date
Sep 30, 1997
Hoechst Celanese Corp.
Sunny S. Shen
G02 - OPTICS
Information
Patent Grant
Polymeric film electrooptic sensor device
Patent number
5,670,871
Issue date
Sep 23, 1997
Hong-Tai Man
G01 - MEASURING TESTING
Information
Patent Grant
High extinction polarizer films comprising liquid crystal polymeric...
Patent number
5,667,719
Issue date
Sep 16, 1997
Hoechst Celanese Corp.
Mohammad Mortazavi
G02 - OPTICS
Information
Patent Grant
Isotropic acrylic polymer exhibiting nonlinear optical response
Patent number
5,247,042
Issue date
Sep 21, 1993
Hoechst Celanese Corp.
Diane E. Allen
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Nonlinear optical medium with a stable noncentrosymmetric polymeric...
Patent number
5,234,557
Issue date
Aug 10, 1993
Hoechst Celanese Corp.
Hyun-Nam Yoon
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Polymeric electrooptic waveguide devices using a polymeric substrate
Patent number
5,170,461
Issue date
Dec 8, 1992
Hoechst Celanese Corp.
Hyun N. Yoon
G02 - OPTICS
Information
Patent Grant
Smooth-wall polymeric channel and rib waveguides exhibiting low opt...
Patent number
5,143,577
Issue date
Sep 1, 1992
Hoechst Celanese Corporation
David Haas
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Polymeric optical modulator and waveguiding media
Patent number
5,133,037
Issue date
Jul 21, 1992
Hoechst Celanese Corp.
Hyun N. Yoon
G02 - OPTICS
Information
Patent Grant
Nonlinear optically responsive polymeric waveguides
Patent number
5,093,883
Issue date
Mar 3, 1992
Hoechst Celanese Corp.
Hyun N. Yoon
G02 - OPTICS
Information
Patent Grant
Nonlinear optical medium with a stable noncentrosymmetric polymeric...
Patent number
5,053,168
Issue date
Oct 1, 1991
Hoechst Celanese Corporation
Hong-Tai Man
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Polymeric thin film waveguide media
Patent number
5,044,725
Issue date
Sep 3, 1991
Hoechst Celanese Corp.
Ronald N. DeMartino
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Production of nonlinear optically responsive polymeric waveguides
Patent number
5,039,186
Issue date
Aug 13, 1991
Hoechst Celanese Corp.
Hong-Tai Man
G02 - OPTICS
Information
Patent Grant
Electro-optic channel waveguide
Patent number
5,007,696
Issue date
Apr 16, 1991
Lockheed Missiles & Space Company, Inc.
John I. Thackara
G02 - OPTICS
Information
Patent Grant
Electro-optic channel waveguide
Patent number
5,006,285
Issue date
Apr 9, 1991
Lockheed Missiles & Space Company, Inc.
John I. Thackara
G02 - OPTICS