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1974-09-18 |
1976-04-08 |
Dihaco Diamanten Handels Co |
Verfahren und vorrichtung zur ermittlung und groessenbestimmung von einschluessen in edelsteinen
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GB1566325A
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1976-02-05 |
1980-04-30 |
Dihaco Diamanten Handels Co |
Process and apparatus for ascertaining data relating to the valuation of gems
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CH607020A5
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1976-05-20 |
1978-11-30 |
Alusuisse |
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1978-07-28 |
1981-05-12 |
Gem Instruments Corporation |
Apparatus for visually duplicating gemstones
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US4291975A
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1979-10-03 |
1981-09-29 |
Scientific Gem Identification, Inc. |
Apparatus for determining the color characteristics of a gem
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EP0041391B1
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1980-06-04 |
1985-10-02 |
Gersan Establishment |
Method and system for examining a gem stone
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ZA813690B
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1980-06-04 |
1982-07-28 |
Gersan Ets |
Examining a gemstone
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EP0042361A1
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1980-06-17 |
1981-12-23 |
GRETAG Aktiengesellschaft |
Verfahren und Vorrichtung zur maschinellen Identifikation von Edelsteinen
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JPS57156545A
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1981-03-22 |
1982-09-27 |
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Identifying method for jewelry by measurement of optical system and data processor for it
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JPS57158544A
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1981-03-25 |
1982-09-30 |
Ii R C:Kk |
Identifying method of jewel and ornament by measurement of quantity system and optical system, and its data processor
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JPS57169656A
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1981-04-12 |
1982-10-19 |
Ii R C:Kk |
Examining method for jewel
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JPS58728A
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1981-06-25 |
1983-01-05 |
Shimadzu Corp |
ダイヤモンドカラ−測定装置
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GB8531396D0
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1985-12-20 |
1986-02-05 |
Gersan Ets |
Sorting
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US5184732A
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1985-12-20 |
1993-02-09 |
Gersan Establishment |
Shape sorting
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JPS6247073Y2
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1986-06-09 |
1987-12-24 |
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IT1211348B
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1987-07-31 |
1989-10-18 |
Roggero Paolo E Trossarelli Ca |
Illuminatore per l osservazione spettroscopica di minerali gemme osimili
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JPH06103268B2
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1989-02-17 |
1994-12-14 |
金作 山下 |
ダイヤモンド等の宝石の輝き観察器具および該器具を用いた宝石の撮影方法
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FR2656118B1
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1989-12-19 |
1992-12-11 |
Europ Propulsion |
Dispositif d'observation pour corps exterieurement brillants de forme generale spherique ou courbe.
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JPH03231143A
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1990-02-06 |
1991-10-15 |
Kinsaku Yamashita |
ダイヤモンドの輝き度判定方法及び測定装置
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JPH06103269B2
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1990-07-06 |
1994-12-14 |
金作 山下 |
ダイヤモンド等の宝石の観察または撮影方法および器具
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JPH05332731A
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1992-05-29 |
1993-12-14 |
Nikon Corp |
形状計測装置
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US5966673A
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1997-01-10 |
1999-10-12 |
Diamond Technologies, Inc. |
System and method for computerized evaluation of gemstones
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2000-02-16 |
2002-10-29 |
Gemological Institute Of America, Inc. |
Systems, apparatuses and methods for diamond color measurement and analysis
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2000-09-29 |
2006-09-12 |
American Gemological Laboratories, Inc. |
Characterization of clarity and color enhancement agents in gems
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2000-10-12 |
2007-08-21 |
Gemological Institute Of America, Inc. |
System and methods for evaluating the appearance of a gemstone
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FR2831031A1
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2001-10-23 |
2003-04-25 |
Dji Design |
Article de bijouterie illuminable comportant une pierre transparente a la lumiere, et procede d'illumination de celle-ci
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2001-12-13 |
2004-09-21 |
Overseas Diamonds Technologies N.V. |
Kıymetli taşın bir özelliğinin belirlenmesi için veri üreten bir cihaz ve kıymetli taşın bir özelliğini belirlemek için yöntemler.
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2002-10-15 |
2004-09-07 |
Overseas Diamonds Inc. |
Computer-implemented method of and system for teaching an untrained observer to evaluate a gemstone
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2004-01-12 |
2006-09-05 |
Gemological Institute Of America, Inc. |
Fluorescence measuring device for gemstones
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2004-05-13 |
2008-01-01 |
Haske Martin D |
Fire demonstration tool and method for using thereof
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2005-08-22 |
2010-09-21 |
Galatea Ltd. |
Method for evaluation of a gemstone
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2005-08-22 |
2007-03-08 |
Galatea Ltd. |
Verfahren zum Bestimmen des Wertes eines Objekts
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2005-12-12 |
2010-01-20 |
Платформ Девелопмент Энд Инвестмент Лтд. (Il) |
Оценка цвета алмазов
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2006-12-07 |
2016-02-16 |
Lenovo Enterprise Solutions (Singapore) Pte. Ltd. |
Single channel memory mirror
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2008-03-11 |
2009-09-17 |
Dave Lapa |
Apparatus, a method, and a system for gemstone evaluation and gemology tutoring over the internet
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DE102009025561A1
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2009-06-12 |
2010-12-16 |
BAM Bundesanstalt für Materialforschung und -prüfung |
Anordnung und Verfahren zur Bestimmung der Lumineszenzquantenausbeute einer lumineszierenden Probe
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2011-02-16 |
2022-04-21 |
Shenzhen DiKai Industrial Co., Ltd. |
Multi-Functional Precious Stone Testing Apparatus and Method Thereof
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2012-10-03 |
2014-04-10 |
Presidium Instruments Pte Ltd |
A gemstone tester and a method of characterising a gemstone
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AT514332B1
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2013-08-27 |
2014-12-15 |
Swarovski D Kg |
Anordnung zur Analyse eines durch Brechung und Reflexion an einem Schmuckstein hervorgerufenen Lichtmusters
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2017-01-27 |
2019-05-28 |
United Technologies Corporation |
Spherical articulating fixture
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EP3729063B1
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2017-12-21 |
2022-02-09 |
Università Degli Studi Di Milano - Bicocca |
System and method for spectroscopy analysis of diamonds
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2020-08-18 |
2022-05-17 |
Hong Kong Applied Science And Technology Research Institute Co., Ltd. |
Apparatus and method for visually inspecting gemstones
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IT202100021218A1
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2021-08-05 |
2023-02-05 |
Diamsafe S R L |
Metodo e dispositivo per identificare univocamente una pietra preziosa sfaccettata
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