JPS57111260A - Hard case for watch - Google Patents

Hard case for watch

Info

Publication number
JPS57111260A
JPS57111260A JP18813080A JP18813080A JPS57111260A JP S57111260 A JPS57111260 A JP S57111260A JP 18813080 A JP18813080 A JP 18813080A JP 18813080 A JP18813080 A JP 18813080A JP S57111260 A JPS57111260 A JP S57111260A
Authority
JP
Japan
Prior art keywords
watch
ceramic particles
case
give
crystallized glass
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP18813080A
Other languages
Japanese (ja)
Inventor
Masaki Kasai
Kunio Sakuma
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha 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 Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP18813080A priority Critical patent/JPS57111260A/en
Publication of JPS57111260A publication Critical patent/JPS57111260A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To obtain a hard case for watch having improved corrosion resistance, transparent and high-quality feeling like jewel, by scattering ceramic particles into crystallized glass as a base material.
CONSTITUTION: Colorless or colored transparent crystallized glass is used as a base material, 0W80wt% various kinds of colored ceramic particles depending upon the appearance of a case to be required are dispersed in the material, to give a composite material. Ceramic particles with particle sizes of several micronsW1mm are used, and their component is zirconia, red lead, yellow titanium, cobalt green, etc. This composite material is molded under heating, and annealed to removed strain, to give a case for watch.
COPYRIGHT: (C)1982,JPO&Japio
JP18813080A 1980-12-29 1980-12-29 Hard case for watch Pending JPS57111260A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18813080A JPS57111260A (en) 1980-12-29 1980-12-29 Hard case for watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18813080A JPS57111260A (en) 1980-12-29 1980-12-29 Hard case for watch

Publications (1)

Publication Number Publication Date
JPS57111260A true JPS57111260A (en) 1982-07-10

Family

ID=16218245

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18813080A Pending JPS57111260A (en) 1980-12-29 1980-12-29 Hard case for watch

Country Status (1)

Country Link
JP (1) JPS57111260A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007054028A1 (en) * 2005-11-11 2007-05-18 Ng, Hoi Keung An artificial crystal glass watchcase formed integrally with a cover and its manufacture method
WO2007137507A1 (en) * 2006-06-01 2007-12-06 Tai Chun Iris Yeung A watch case of artificial crystal glass provided with individual case ears and its manufacture method
WO2014059730A1 (en) * 2012-10-19 2014-04-24 Shek Chipang New watch

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007054028A1 (en) * 2005-11-11 2007-05-18 Ng, Hoi Keung An artificial crystal glass watchcase formed integrally with a cover and its manufacture method
WO2007137507A1 (en) * 2006-06-01 2007-12-06 Tai Chun Iris Yeung A watch case of artificial crystal glass provided with individual case ears and its manufacture method
WO2014059730A1 (en) * 2012-10-19 2014-04-24 Shek Chipang New watch

Similar Documents

Publication Publication Date Title
DE3260794D1 (en) Cyclic carbonic acid derivatives, process for their preparation and their use as copolymerisation constituents for the preparation of polycarbonates
DE68916048T2 (en) Process for the production of monodisperse polymer particles with increased particle size.
DE3175702D1 (en) Maleimide resin composition and process for its production
ZA813286B (en) Improved particulate coal-in-liquid mixture and process for the production thereof
GB2213830B (en) Water-resistant fuel agglomerate, process for preparing it and composition of matter employed in the process
JPS52127095A (en) Method of producing superconductive material composed of plastic or glass matrix including mixed particles
GB9014240D0 (en) Gold alloy for black cloloring, processed article of black colored gold alloy and method for production of the processed article
JPS57111260A (en) Hard case for watch
DE69021179D1 (en) Process for the preparation of emulsion-polymerized polybutadiene with increased particle size.
IT1238615B (en) PROCEDURE FOR THE ENRICHMENT OF POWDERS, RESULTING IN THE CUBILOT, WITH METALLIC PARTICLES
GB2072213B (en) Process for the preparation of solutions of the dyestuff direct yellow 11 and their applications
ZA813263B (en) The assessment of colour in diamonds and other gems
DE3171015D1 (en) Process for the formation of negative colour images according to the silver dye-bleaching process, and the silver dye-bleaching material used in this process
ZA813914B (en) Color pigment for use in the production of thermoplastic articles
JPS5414399A (en) Production of beryl single crystal
EP0071486A3 (en) Novel microorganisms of the genus eschericia, hybrid dna for use in their production and the use of the microorganisms in the preparation of glutathione
GB2052523B (en) Copolymer powder of spherical particles and the production thereof
DE69131863T2 (en) ADMINISTRATION OF CERAMIC PARTICLES INTO A COPPER BASE MATRIX FOR THE PRODUCTION OF COMPOSITE MATERIAL
Toon Coloured pigments. News of the hues
JPS55125167A (en) Production of wall covering material having metallic luster
JPS5756074A (en) Solid pattern forming method with particle
JPS5651711A (en) Slide glass for microscope
JPS5638226A (en) Preparation of frp formed article
DE68915260D1 (en) Process for the production of composite material with metal matrix and composite material produced in this way.
JPS5213969A (en) Process for making ornament or display piece made of clay-like materia l containing mainly grain powder