IT1240937B - GOLD ALLOY FOR COLORING IN BLACK, ARTICLE WORKED IN GOLD ALLOY COLORED IN BLACK AND METHOD FOR THE PRODUCTION OF THE ARTICLE WORKED - Google Patents

GOLD ALLOY FOR COLORING IN BLACK, ARTICLE WORKED IN GOLD ALLOY COLORED IN BLACK AND METHOD FOR THE PRODUCTION OF THE ARTICLE WORKED

Info

Publication number
IT1240937B
IT1240937B IT67023A IT6702390A IT1240937B IT 1240937 B IT1240937 B IT 1240937B IT 67023 A IT67023 A IT 67023A IT 6702390 A IT6702390 A IT 6702390A IT 1240937 B IT1240937 B IT 1240937B
Authority
IT
Italy
Prior art keywords
black
gold alloy
worked
article
article worked
Prior art date
Application number
IT67023A
Other languages
Italian (it)
Other versions
IT9067023A1 (en
IT9067023A0 (en
Inventor
Takeshi Takayanagi
Noburu Morita
Original Assignee
Agency Ind Science Techn
Seki Kk
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Agency Ind Science Techn, Seki Kk filed Critical Agency Ind Science Techn
Publication of IT9067023A0 publication Critical patent/IT9067023A0/en
Publication of IT9067023A1 publication Critical patent/IT9067023A1/en
Application granted granted Critical
Publication of IT1240937B publication Critical patent/IT1240937B/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C27/00—Making jewellery or other personal adornments
    • A44C27/001—Materials for manufacturing jewellery
    • A44C27/002—Metallic materials
    • A44C27/003—Metallic alloys
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C5/00—Alloys based on noble metals
    • C22C5/02—Alloys based on gold

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Adornments (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Contacts (AREA)
IT67023A 1989-02-28 1990-01-12 GOLD ALLOY FOR COLORING IN BLACK, ARTICLE WORKED IN GOLD ALLOY COLORED IN BLACK AND METHOD FOR THE PRODUCTION OF THE ARTICLE WORKED IT1240937B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1045420A JPH02225655A (en) 1989-02-28 1989-02-28 Gold alloy capable of coloring into bright black color and coloring method therefor

Publications (3)

Publication Number Publication Date
IT9067023A0 IT9067023A0 (en) 1990-01-12
IT9067023A1 IT9067023A1 (en) 1991-07-12
IT1240937B true IT1240937B (en) 1993-12-27

Family

ID=12718777

Family Applications (1)

Application Number Title Priority Date Filing Date
IT67023A IT1240937B (en) 1989-02-28 1990-01-12 GOLD ALLOY FOR COLORING IN BLACK, ARTICLE WORKED IN GOLD ALLOY COLORED IN BLACK AND METHOD FOR THE PRODUCTION OF THE ARTICLE WORKED

Country Status (6)

Country Link
JP (1) JPH02225655A (en)
CH (1) CH680735A5 (en)
DE (1) DE4020329A1 (en)
FR (1) FR2643649B1 (en)
GB (1) GB2245590A (en)
IT (1) IT1240937B (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02197539A (en) * 1989-01-26 1990-08-06 Tanaka Kikinzoku Kogyo Kk Co-containing noble metallic material for ornaments
JPH04183836A (en) * 1990-11-19 1992-06-30 Seiko Instr Inc Surface hardened colored gold alloy
JPH0657356A (en) * 1991-11-14 1994-03-01 Nippon Kogyo Ginkou:Kk Gold alloy for decoration
US5853661A (en) * 1994-07-05 1998-12-29 Cendres Et Metaux Sa High gold content bio--compatible dental alloy
IT1280528B1 (en) * 1995-06-27 1998-01-22 Silmar Spa GOLD-BASED ALLOYS
WO2006111178A1 (en) * 2005-04-19 2006-10-26 Ludwig Müller S.A. Precious metal alloy
CH697875B1 (en) * 2005-07-16 2009-03-13 Ludwig Mueller precious metal alloy.
SG160266A1 (en) * 2008-09-08 2010-04-29 Autium Pte Ltd Coloured gold alloy and method for forming the same
EP3040790A1 (en) * 2014-12-29 2016-07-06 Montres Breguet S.A. Timepiece or piece of jewellery made of a light titanium-based precious alloy
RU2625199C1 (en) * 2016-07-11 2017-07-12 Юлия Алексеевна Щепочкина Gold-based alloy
EP3553192B1 (en) * 2018-04-12 2021-07-14 Argor-Heraeus S.A. Tarnishing resistant gold alloy at 14k and method of production thereof
IT201800004444A1 (en) * 2018-04-12 2019-10-12 14K GOLD ALLOY RESISTANT TO TARNISHING AND PRODUCTION METHOD OF THE SAME
CN112251625B (en) * 2020-10-15 2022-04-15 深圳市宝瑞莱珠宝首饰有限公司 Fading-resistant 18K black gold processing technology for jewelry
EP4249149A1 (en) 2022-03-24 2023-09-27 Richemont International S.A. Composite gold material for dark colouring and method for manufacturing same
IT202200010889A1 (en) * 2022-05-25 2023-11-25 Patros S R L Method for obtaining an object comprising titanium for jewellery, goldsmithing or costume jewelery and object thus obtained.

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH207103A (en) * 1937-04-23 1939-09-30 Heraeus Gmbh W C Gold alloy, in particular for jewelry and rings.
US2164938A (en) * 1938-08-23 1939-07-04 Metals & Controls Corp Alloy
US2141157A (en) * 1938-08-23 1938-12-20 Metals & Controls Corp Alloy
US2229463A (en) * 1939-10-21 1941-01-21 Handy & Harman Alloy
DE752627C (en) * 1942-10-24 1951-08-06 Degussa Payable gold-platinum alloy
DE1121339B (en) * 1957-07-12 1962-01-04 Degussa Deformable gold alloys for electrical conductors with high specific resistance
US3189482A (en) * 1961-03-09 1965-06-15 Gen Mills Inc Metal film resistor and method of its formation
US3769006A (en) * 1972-01-27 1973-10-30 Gold Refining W Co Bright cast alloy, and composition
JPS5288236A (en) * 1976-01-19 1977-07-23 Seiko Instr & Electronics Ornamental coloring process
US4012228A (en) * 1976-05-14 1977-03-15 Howmedica, Inc. Low intrinsic value alloys
GB2041974B (en) * 1979-01-18 1983-03-09 Murao Shoten Gold alloy
GB2066291B (en) * 1979-12-14 1984-01-25 Atomic Energy Authority Uk Ternary alloys
JPS575833A (en) * 1980-06-11 1982-01-12 Ishifuku Kinzoku Kogyo Kk Gold permanent magnet alloy
JPS57120644A (en) * 1981-01-16 1982-07-27 Citizen Watch Co Ltd Gold alloy with pinkish color tone
DE3142541C2 (en) * 1981-10-27 1986-07-31 Demetron Gesellschaft für Elektronik-Werkstoffe mbH, 6540 Hanau Multi-component alloy for targets in cathode sputtering systems
JPS5923835A (en) * 1982-07-28 1984-02-07 Toyota Central Res & Dev Lab Inc Production of boride diffused alloy
GB2138027B (en) * 1983-04-12 1986-09-10 Citizen Watch Co Ltd A process for plating an article with a gold-based alloy and an alloy therefor
JPS6067694A (en) * 1983-09-20 1985-04-18 Katsusato Fujiyoshi Color forming method of sintered noble metal
DE3406711C1 (en) * 1984-02-24 1985-04-25 Degussa Ag, 6000 Frankfurt Low gold dental alloys
DE3502460A1 (en) * 1985-01-25 1986-07-31 C. Hafner GmbH + Co., 7530 Pforzheim Process for generating dark surfaces on gold alloys
DE3502914A1 (en) * 1985-01-29 1986-07-31 International Gold Corp. Ltd., Johannesburg USE OF TITANIUM GOLD ALLOYS
GB2184457B (en) * 1985-12-06 1989-03-30 Vittorio Antoniazzi Gold alloy
JPS62185846A (en) * 1986-02-07 1987-08-14 Citizen Watch Co Ltd Gold-platinum-cobalt permanent magnet alloy
DE3835593C1 (en) * 1988-10-19 1989-11-16 Degussa Ag, 6000 Frankfurt, De

Also Published As

Publication number Publication date
CH680735A5 (en) 1992-10-30
GB2245590A (en) 1992-01-08
IT9067023A1 (en) 1991-07-12
FR2643649B1 (en) 1994-05-13
JPH02225655A (en) 1990-09-07
DE4020329A1 (en) 1992-01-02
IT9067023A0 (en) 1990-01-12
FR2643649A1 (en) 1990-08-31
GB9014240D0 (en) 1990-08-15

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Legal Events

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0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19990126