Ping-Wah Tang

Person

Rochester, NY, US

People

Patents Grantslast 30 patents

Information Patent Grant
Silver halide photographic element containing improved yellow dye-f...
- Patent number 6,162,598
- Issue date Dec 19, 2000
- Eastman Kodak Company
- Ping-Wah Tang
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Pyrazolotriazle dye-forming photographic coupler
- Patent number 6,143,485
- Issue date Nov 7, 2000
- Eastman Kodak Company
- Ping-Wah Tang
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photographic elements containing improved yellow dye-forming couplers
- Patent number 6,130,032
- Issue date Oct 10, 2000
- Eastman Kodak Company
- Ping W. Tang
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Silver halide photographic element containing improved cyan dye-for...
- Patent number 6,096,494
- Issue date Aug 1, 2000
- Eastman Kodak Company
- Ping-Wah Tang
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photographic yellow dye-forming couplers
- Patent number 6,040,126
- Issue date Mar 21, 2000
- Eastman Kodak Company
- Ping-Wah Tang
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparation of a 4-amino-5-mercapto-3-substituted-�1,2,...
- Patent number 5,864,042
- Issue date Jan 26, 1999
- Eastman Kodak Company
- Ping W. Tang
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Photographic materials and process comprising a particular acylacet...
- Patent number 5,851,748
- Issue date Dec 22, 1998
- Eastman Kodak Company
- Ping-Wah Tang
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photographic material comprising a bicyclic pyrazolo coupler
- Patent number 5,811,230
- Issue date Sep 22, 1998
- Eastman Kodak Company
- Ping Wah Tang
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photographic dye-forming coupler, emulsion layer, element, and process
- Patent number 5,698,386
- Issue date Dec 16, 1997
- Eastman Kodak Company
- Ping Wah Tang
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photographic dye-forming coupler, emulsion layer, element, and process
- Patent number 5,681,690
- Issue date Oct 28, 1997
- Eastman Kodak Company
- Ping-Wah Tang
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photographic material and process comprising a bicyclic pyrazolo co...
- Patent number 5,667,952
- Issue date Sep 16, 1997
- Eastman Kodak Company
- Ping Wah Tang
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photographic emulsion layer containing pyrazoloazole coupler exhibi...
- Patent number 5,609,996
- Issue date Mar 11, 1997
- Eastman Kodak Company
- Ping W. Tang
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Photographic dye-forming coupler, emulsion layer, element, and process
- Patent number 5,576,150
- Issue date Nov 19, 1996
- Eastman Kodak Company
- Ping W. Tang
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process of preparing pyrazolo 1,5-b! 1,2,4! triazoles
- Patent number 5,510,492
- Issue date Apr 23, 1996
- Eastman Kodak Company
- Ping-Wah Tang
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Photographic material and process comprising a bicyclic pyrazolo co...
- Patent number 5,457,020
- Issue date Oct 10, 1995
- Eastman Kodak Company
- Philip T. S. Lau
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Methods of forming polymeric couplers
- Patent number 5,455,147
- Issue date Oct 3, 1995
- Eastman Kodak Company
- Tien-Teh Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Photographic elements with heterocyclic cyan dye-forming couplers
- Patent number 5,441,863
- Issue date Aug 15, 1995
- Eastman Kodak Company
- Ping W. Tang
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Yellow couplers having an arloxy coupling-off group which contains...
- Patent number 5,427,898
- Issue date Jun 27, 1995
- Eastman Kodak Company
- Ping W. Tang
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photographic element with a cyclic azole coupler having a saccharin...
- Patent number 5,424,179
- Issue date Jun 13, 1995
- Eastman Kodak Company
- Ping W. Tang
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Intermediates and process for preparing magenta couplers
- Patent number 5,395,968
- Issue date Mar 7, 1995
- Eastman Kodak Company
- Ping-Wah Tang
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Color photographic materials containing polymeric couplers
- Patent number 5,360,710
- Issue date Nov 1, 1994
- Eastman Kodak Company
- Tien-Teh Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Yellow dye-forming couplers and color photographic elements contain...
- Patent number 5,360,713
- Issue date Nov 1, 1994
- Eastman Kodak Company
- Ping W. Tang
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photographic elements containing new magenta-dye-forming tris couplers
- Patent number 5,358,836
- Issue date Oct 25, 1994
- Eastman Kodak Company
- Ping-Wah Tang
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Photographic material and process comprising a bicyclic pyrazolo co...
- Patent number 5,358,829
- Issue date Oct 25, 1994
- Eastman Kodak Company
- Ping W. Tang
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Photographic elements containing new yellow-dye-forming tris couplers
- Patent number 5,358,835
- Issue date Oct 25, 1994
- Eastman Kodak Company
- Ping-Wah Tang
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photographic elements containing new magenta-dye-forming bis couplers
- Patent number 5,358,837
- Issue date Oct 25, 1994
- Eastman Kodak Company
- Ping-Wah Tang
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photographic elements containing new yellow-dye-forming tris couplers
- Patent number 5,358,838
- Issue date Oct 25, 1994
- Eastman Kodak Company
- Ping-Wah Tang
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Preparation of 1H pyrazolo [3,2-c]-S-triazole compounds
- Patent number 5,342,943
- Issue date Aug 30, 1994
- Eastman Kodak Company
- Philip T. S. Lau
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Photographic elements containing new dye-forming tris couplers
- Patent number 5,340,708
- Issue date Aug 23, 1994
- Eastman Kodak Company
- Ping-Wah Tang
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method of preparing 5-amino-3-substituted-pyrazole
- Patent number 5,276,158
- Issue date Jan 4, 1994
- Eastman Kodak Company
- Ping-Wah Tang
- C07 - ORGANIC CHEMISTRY

Ping-Wah Tang

Person

Patents Grantslast 30 patents

Silver halide photographic element containing improved yellow dye-f...

Pyrazolotriazle dye-forming photographic coupler

Photographic elements containing improved yellow dye-forming couplers

Silver halide photographic element containing improved cyan dye-for...

Photographic yellow dye-forming couplers

Process for preparation of a 4-amino-5-mercapto-3-substituted-�1,2,...

Photographic materials and process comprising a particular acylacet...

Photographic material comprising a bicyclic pyrazolo coupler

Photographic dye-forming coupler, emulsion layer, element, and process

Photographic dye-forming coupler, emulsion layer, element, and process

Photographic material and process comprising a bicyclic pyrazolo co...

Photographic emulsion layer containing pyrazoloazole coupler exhibi...

Photographic dye-forming coupler, emulsion layer, element, and process

Process of preparing pyrazolo 1,5-b! 1,2,4! triazoles

Photographic material and process comprising a bicyclic pyrazolo co...

Methods of forming polymeric couplers

Photographic elements with heterocyclic cyan dye-forming couplers

Yellow couplers having an arloxy coupling-off group which contains...

Photographic element with a cyclic azole coupler having a saccharin...

Intermediates and process for preparing magenta couplers

Color photographic materials containing polymeric couplers

Yellow dye-forming couplers and color photographic elements contain...

Photographic elements containing new magenta-dye-forming tris couplers

Photographic material and process comprising a bicyclic pyrazolo co...

Photographic elements containing new yellow-dye-forming tris couplers

Photographic elements containing new magenta-dye-forming bis couplers

Photographic elements containing new yellow-dye-forming tris couplers

Preparation of 1H pyrazolo [3,2-c]-S-triazole compounds

Photographic elements containing new dye-forming tris couplers

Method of preparing 5-amino-3-substituted-pyrazole