Hiroshi Takahashi

Person

Fort Lee, NJ, US

People

Patents Grantslast 30 patents

Information Patent Grant
Light emitting diode arrangements for gemstone evaluation
- Patent number 12,135,278
- Issue date Nov 5, 2024
- Gemological Institute of America, Inc. (GIA)
- Jing Zeng
- F21 - LIGHTING
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
Apparatus and method for assessing optical quality of gemstones
- Patent number 11,921,051
- Issue date Mar 5, 2024
- Gemological Institute of America, Inc. (GIA)
- Hiroshi Takahashi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Apparatus and method for fluorescence grading of gemstones
- Patent number 11,892,405
- Issue date Feb 6, 2024
- Gemological Institute of America, Inc. (GIA)
- Hiroshi Takahashi
- G01 - MEASURING TESTING
Information Patent Grant
Ultraviolet-visible absorption spectroscopy for gemstone identifica...
- Patent number 11,828,703
- Issue date Nov 28, 2023
- Gemological Institute of America, Inc. (GIA)
- Hiroshi Takahashi
- G01 - MEASURING TESTING
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
Apparatus and method for fluorescence grading of gemstones
- Patent number 11,630,065
- Issue date Apr 18, 2023
- Gemological Institute of America, Inc. (GIA)
- Hiroshi Takahashi
- 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
Apparatus and method for fluorescence grading of gemstones
- Patent number 11,300,514
- Issue date Apr 12, 2022
- Gemological Institute of America, Inc. (GIA)
- Hiroshi Takahashi
- G01 - MEASURING TESTING
Information Patent Grant
Apparatus and method for assessing optical quality of gemstones
- Patent number 11,280,743
- Issue date Mar 22, 2022
- Gemological Institute of America, Inc. (GIA)
- Hiroshi Takahashi
- G01 - MEASURING TESTING
Information Patent Grant
Apparatus and method for fluorescence grading of gemstones
- Patent number 10,890,531
- Issue date Jan 12, 2021
- Gemological Institute of America, Inc. (GIA)
- Hiroshi Takahashi
- G01 - MEASURING TESTING
Information Patent Grant
Apparatus and method for assessing optical quality of gemstones
- Patent number 10,533,951
- Issue date Jan 14, 2020
- Gemological Institute of America, Inc. (GIA)
- Hiroshi Takahashi
- G01 - MEASURING TESTING
Information Patent Grant
Apparatus and method for fluorescence grading of gemstones
- Patent number 10,488,341
- Issue date Nov 26, 2019
- GEMOLOGICAL INSTITUTE OF AMERICA INC. (GIA)
- Hiroshi Takahashi
- G01 - MEASURING TESTING
Information Patent Grant
Apparatus and method for fluorescence grading of gemstones
- Patent number 10,107,757
- Issue date Oct 23, 2018
- GEMOLOGICAL INSTITUTE OF AMERICA INC. (GIA)
- Hiroshi Takahashi
- G01 - MEASURING TESTING
Information Patent Grant
Apparatus and method for assessing optical quality of gemstones
- Patent number 9,678,018
- Issue date Jun 13, 2017
- GEMOLOGICAL INSTITUTE OF AMERICA INC. (GIA)
- Hiroshi Takahashi
- G01 - MEASURING TESTING

Patents Applicationslast 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
APPARATUS AND METHOD FOR FLUORESCENCE GRADING OF GEMSTONES
- Publication number 20240167955
- Publication date May 23, 2024
- GEMOLOGICAL INSTITUTE OF AMERICA, INC. (GIA)
- Hiroshi TAKAHASHI
- G01 - MEASURING TESTING
Information Patent Application
APPARATUS AND METHOD FOR ASSESSING OPTICAL QUALITY OF GEMSTONES
- Publication number 20240159683
- Publication date May 16, 2024
- GEMOLOGICAL INSTITUTE OF AMERICA, INC. (GIA)
- Hiroshi TAKAHASHI
- 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
ULTRAVIOLET-VISIBLE ABSORPTION SPECTROSCOPY FOR GEMSTONE IDENTIFICA...
- Publication number 20240060879
- Publication date Feb 22, 2024
- GEMOLOGICAL INSTITUTE OF AMERICA, INC. (GIA)
- Hiroshi TAKAHASHI
- G01 - MEASURING TESTING
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
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
APPARATUS AND METHOD FOR FLUORESCENCE GRADING OF GEMSTONES
- Publication number 20230213447
- Publication date Jul 6, 2023
- GEMOLOGICAL INSTITUTE OF AMERICA, INC. (GIA)
- Hiroshi TAKAHASHI
- G01 - MEASURING TESTING
Information Patent Application
LASER INSCRIPTION FOR GEMSTONES
- Publication number 20230083053
- Publication date Mar 16, 2023
- GEMOLOGICAL INSTITUTE OF AMERICA, INC. (GIA)
- Zhen WANG
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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
GEMSTONE BLUE FLUORESCENCE DETECTION AND GRADING
- Publication number 20220196565
- Publication date Jun 23, 2022
- GEMOLOGICAL INSTITUTE OF AMERICA, INC. (GIA)
- Yun LUO
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
APPARATUS AND METHOD FOR FLUORESCENCE GRADING OF GEMSTONES
- Publication number 20220178827
- Publication date Jun 9, 2022
- GEMOLOGICAL INSTITUTE OF AMERICA, INC. (GIA)
- Hiroshi TAKAHASHI
- G01 - MEASURING TESTING
Information Patent Application
APPARATUS AND METHOD FOR ASSESSING OPTICAL QUALITY OF GEMSTONES
- Publication number 20220163457
- Publication date May 26, 2022
- GEMOLOGICAL INSTITUTE OF AMERICA, INC. (GIA)
- Hiroshi TAKAHASHI
- G01 - MEASURING TESTING
Information Patent Application
ULTRAVIOLET-VISIBLE ABSORPTION SPECTROSCOPY FOR GEMSTONE IDENTIFICA...
- Publication number 20220034795
- Publication date Feb 3, 2022
- GEMOLOGICAL INSTITUTE OF AMERICA, INC. (GIA)
- Hiroshi TAKAHASHI
- G01 - MEASURING TESTING
Information Patent Application
LIGHT EMITTING DIODE ARRANGEMENTS FOR GEMSTONE EVALUATION
- Publication number 20220026351
- Publication date Jan 27, 2022
- GEMOLOGICAL INSTITUTE OF AMERICA, INC. (GIA)
- Jing ZENG
- F21 - LIGHTING
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
APPARATUS AND METHOD FOR FLUORESCENCE GRADING OF GEMSTONES
- Publication number 20210116379
- Publication date Apr 22, 2021
- GEMOLOGICAL INSTITUTE OF AMERICA, INC. (GIA)
- Hiroshi TAKAHASHI
- G01 - MEASURING TESTING
Information Patent Application
APPARATUS AND METHOD FOR ASSESSING OPTICAL QUALITY OF GEMSTONES
- Publication number 20200096453
- Publication date Mar 26, 2020
- GEMOLOGICAL INSTITUTE OF AMERICA, INC. (GIA)
- Hiroshi TAKAHASHI
- G01 - MEASURING TESTING
Information Patent Application
APPARATUS AND METHOD FOR FLUORESCENCE GRADING OF GEMSTONES
- Publication number 20200064267
- Publication date Feb 27, 2020
- GEMOLOGICAL INSTITUTE OF AMERICA INC. (GIA)
- Hiroshi TAKAHASHI
- G01 - MEASURING TESTING
Information Patent Application
APPARATUS AND METHOD FOR FLUORESCENCE GRADING OF GEMSTONES
- Publication number 20190137399
- Publication date May 9, 2019
- GEMOLOGICAL INSTITUTE OF AMERICA INC. (GIA)
- Hiroshi TAKAHASHI
- G01 - MEASURING TESTING
Information Patent Application
APPARATUS AND METHOD FOR ASSESSING OPTICAL QUALITY OF GEMSTONES
- Publication number 20170370855
- Publication date Dec 28, 2017
- GEMOLOGICAL INSTITUTE OF AMERICA INC. (GIA)
- Hiroshi TAKAHASHI
- G01 - MEASURING TESTING
Information Patent Application
APPARATUS AND METHOD FOR FLUORESCENCE GRADING OF GEMSTONES
- Publication number 20160290925
- Publication date Oct 6, 2016
- Gemological Institute of America, Inc.
- Hiroshi TAKAHASHI
- G01 - MEASURING TESTING
Information Patent Application
APPARATUS AND METHOD FOR ASSESSING OPTICAL QUALITY OF GEMSTONES
- Publication number 20160290930
- Publication date Oct 6, 2016
- Gemological Institute of America, Inc.
- Hiroshi TAKAHASHI
- G01 - MEASURING TESTING

Hiroshi Takahashi

Person

Patents Grantslast 30 patents

Light emitting diode arrangements for gemstone evaluation

Imaging assisted scanning spectroscopy for gem identification

Apparatus and method for assessing optical quality of gemstones

Apparatus and method for fluorescence grading of gemstones

Ultraviolet-visible absorption spectroscopy for gemstone identifica...

Imaging assisted scanning spectroscopy for gem identification

Apparatus and method for fluorescence grading of gemstones

Imaging assisted scanning spectroscopy for gem identification

Apparatus and method for fluorescence grading of gemstones

Apparatus and method for assessing optical quality of gemstones

Apparatus and method for fluorescence grading of gemstones

Apparatus and method for assessing optical quality of gemstones

Apparatus and method for fluorescence grading of gemstones

Apparatus and method for fluorescence grading of gemstones

Apparatus and method for assessing optical quality of gemstones

Patents Applicationslast 30 patents

IMAGING ASSISTED SCANNING SPECTROSCOPY FOR GEM IDENTIFICATION

APPARATUS AND METHOD FOR FLUORESCENCE GRADING OF GEMSTONES

APPARATUS AND METHOD FOR ASSESSING OPTICAL QUALITY OF GEMSTONES

HIGH CLARITY GEMSTONE FACET AND INTERNAL IMAGING ANALYSIS

ULTRAVIOLET-VISIBLE ABSORPTION SPECTROSCOPY FOR GEMSTONE IDENTIFICA...

IMAGING ASSISTED SCANNING SPECTROSCOPY FOR GEM IDENTIFICATION

TILT AND FOCUSING ADJUSTMENT FOR CONSISTENT GEM IMAGING

SURFACE ANALYSIS OF GEMSTONES

APPARATUS AND METHOD FOR FLUORESCENCE GRADING OF GEMSTONES

LASER INSCRIPTION FOR GEMSTONES

IMAGING ASSISTED SCANNING SPECTROSCOPY FOR GEM IDENTIFICATION

GEMSTONE BLUE FLUORESCENCE DETECTION AND GRADING

APPARATUS AND METHOD FOR FLUORESCENCE GRADING OF GEMSTONES

APPARATUS AND METHOD FOR ASSESSING OPTICAL QUALITY OF GEMSTONES

ULTRAVIOLET-VISIBLE ABSORPTION SPECTROSCOPY FOR GEMSTONE IDENTIFICA...

LIGHT EMITTING DIODE ARRANGEMENTS FOR GEMSTONE EVALUATION

IMAGING ASSISTED SCANNING SPECTROSCOPY FOR GEM IDENTIFICATION

APPARATUS AND METHOD FOR FLUORESCENCE GRADING OF GEMSTONES

APPARATUS AND METHOD FOR ASSESSING OPTICAL QUALITY OF GEMSTONES

APPARATUS AND METHOD FOR FLUORESCENCE GRADING OF GEMSTONES

APPARATUS AND METHOD FOR FLUORESCENCE GRADING OF GEMSTONES

APPARATUS AND METHOD FOR ASSESSING OPTICAL QUALITY OF GEMSTONES

APPARATUS AND METHOD FOR FLUORESCENCE GRADING OF GEMSTONES

APPARATUS AND METHOD FOR ASSESSING OPTICAL QUALITY OF GEMSTONES