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Tsung-Han Tsai
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Carlsbad, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Imaging assisted scanning spectroscopy for gem identification
Patent number
12,085,511
Issue date
Sep 10, 2024
Gemological Institute of America, Inc. (GIA)
Tsung-Han Tsai
G01 - MEASURING TESTING
Information
Patent Grant
Fluorescence imaging of gemstone on transparent stage
Patent number
12,025,563
Issue date
Jul 2, 2024
Gemological Institute of America, Inc. (GIA)
Tsung-Han Tsai
G01 - MEASURING TESTING
Information
Patent Grant
Luminescence imaging for gemstone screening
Patent number
11,879,842
Issue date
Jan 23, 2024
Gemological Institute of America, Inc. (GIA)
Tsung-Han Tsai
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Imaging assisted scanning spectroscopy for gem identification
Patent number
11,754,506
Issue date
Sep 12, 2023
Gemological Institute of America, Inc. (GIA)
Tsung-Han Tsai
G01 - MEASURING TESTING
Information
Patent Grant
Fluorescence imaging of gemstone on transparent stage
Patent number
11,674,905
Issue date
Jun 13, 2023
Gemological Institute of America, Inc. (GIA)
Tsung-Han Tsai
G01 - MEASURING TESTING
Information
Patent Grant
Imaging assisted scanning spectroscopy for gem identification
Patent number
11,499,920
Issue date
Nov 15, 2022
Gemological Institute of America, Inc. (GIA)
Tsung-Han Tsai
G01 - MEASURING TESTING
Information
Patent Grant
Fluorescence imaging of gemstone on transparent stage
Patent number
11,346,788
Issue date
May 31, 2022
Gemological Institute of America, Inc. (GIA)
Tsung-Han Tsai
G01 - MEASURING TESTING
Information
Patent Grant
Device and method for screening gemstones
Patent number
10,684,230
Issue date
Jun 16, 2020
Gemological Institute of America, Inc. (GIA)
Wuyi Wang
G01 - MEASURING TESTING
Patents Applications
last 30 patents
Information
Patent Application
IMAGING ASSISTED SCANNING SPECTROSCOPY FOR GEM IDENTIFICATION
Publication number
20240385119
Publication date
Nov 21, 2024
GEMOLOGICAL INSTITUTE OF AMERICA, INC. (GIA)
Tsung-Han TSAI
G01 - MEASURING TESTING
Information
Patent Application
FLUORESCENCE IMAGING OF GEMSTONE ON TRANSPARENT STAGE
Publication number
20240310290
Publication date
Sep 19, 2024
GEMOLOGICAL INSTITUTE OF AMERICA, INC. (GIA)
Tsung-Han TSAI
G01 - MEASURING TESTING
Information
Patent Application
LUMINESCENCE IMAGING FOR GEMSTONE SCREENING
Publication number
20240110873
Publication date
Apr 4, 2024
GEMOLOGICAL INSTITUTE OF AMERICA, INC. (GIA)
Tsung-Han TSAI
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
HIGH CLARITY GEMSTONE FACET AND INTERNAL IMAGING ANALYSIS
Publication number
20240102937
Publication date
Mar 28, 2024
GEMOLOGICAL INSTITUTE OF AMERICA, INC. (GIA)
Tsung-Han TSAI
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
IMAGING ASSISTED SCANNING SPECTROSCOPY FOR GEM IDENTIFICATION
Publication number
20230366830
Publication date
Nov 16, 2023
GEMOLOGICAL INSTITUTE OF AMERICA, INC. (GIA)
Tsung-Han TSAI
G01 - MEASURING TESTING
Information
Patent Application
FLUORESCENCE IMAGING OF GEMSTONE ON TRANSPARENT STAGE
Publication number
20230266253
Publication date
Aug 24, 2023
Gemological Institute of America, Inc. (GIA)
Tsung-Han TSAI
G01 - MEASURING TESTING
Information
Patent Application
TILT AND FOCUSING ADJUSTMENT FOR CONSISTENT GEM IMAGING
Publication number
20230243758
Publication date
Aug 3, 2023
GEMOLOGICAL INSTITUTE OF AMERICA, INC. (GIA)
Tsung-Han TSAI
G01 - MEASURING TESTING
Information
Patent Application
SURFACE ANALYSIS OF GEMSTONES
Publication number
20230228690
Publication date
Jul 20, 2023
GEMOLOGICAL INSTITUTE OF AMERICA, INC. (GIA)
Tsung-Han TSAI
G01 - MEASURING TESTING
Information
Patent Application
IMAGING ASSISTED SCANNING SPECTROSCOPY FOR GEM IDENTIFICATION
Publication number
20230082604
Publication date
Mar 16, 2023
Tsung-Han TSAI
G01 - MEASURING TESTING
Information
Patent Application
FLUORESCENCE IMAGING OF GEMSTONE ON TRANSPARENT STAGE
Publication number
20220252520
Publication date
Aug 11, 2022
GEMOLOGICAL INSTITUTE OF AMERICA, INC. (GIA)
Tsung-Han TSAI
G01 - MEASURING TESTING
Information
Patent Application
LUMINESCENCE IMAGING FOR GEMSTONE SCREENING
Publication number
20210389247
Publication date
Dec 16, 2021
GEMOLOGICAL INSTITUTE OF AMERICA, INC. (GIA)
Tsung-Han TSAI
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
IMAGING ASSISTED SCANNING SPECTROSCOPY FOR GEM IDENTIFICATION
Publication number
20210302322
Publication date
Sep 30, 2021
GEMOLOGICAL INSTITUTE OF AMERICA, INC. (GIA)
Tsung-Han TSAI
G01 - MEASURING TESTING
Information
Patent Application
FLUORESCENCE IMAGING OF GEMSTONE ON TRANSPARENT STAGE
Publication number
20210156807
Publication date
May 27, 2021
GEMOLOGICAL INSTITUTE OF AMERICA, INC. (GIA)
Tsung-Han TSAI
G01 - MEASURING TESTING
Information
Patent Application
Device and Method for Screening Gemstones
Publication number
20180172599
Publication date
Jun 21, 2018
Gemological Institute of America (GIA)
Wuyi Wang
G01 - MEASURING TESTING