JPS52134470A - Hard quality glass used on watches - Google Patents

Hard quality glass used on watches

Info

Publication number
JPS52134470A
JPS52134470A JP5119076A JP5119076A JPS52134470A JP S52134470 A JPS52134470 A JP S52134470A JP 5119076 A JP5119076 A JP 5119076A JP 5119076 A JP5119076 A JP 5119076A JP S52134470 A JPS52134470 A JP S52134470A
Authority
JP
Japan
Prior art keywords
watches
glass used
quality glass
hard quality
hard
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.)
Granted
Application number
JP5119076A
Other languages
Japanese (ja)
Other versions
JPS5912611B2 (en
Inventor
Toshiyuki Ogura
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 Instruments Inc
Original Assignee
Seiko Instruments Inc
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 Instruments Inc filed Critical Seiko Instruments Inc
Priority to JP5119076A priority Critical patent/JPS5912611B2/en
Publication of JPS52134470A publication Critical patent/JPS52134470A/en
Publication of JPS5912611B2 publication Critical patent/JPS5912611B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Surface Treatment Of Glass (AREA)

Abstract

PURPOSE: To increase commercial value by forming unevenness over the surface by treating the surface with electric discharge within the inactive gas environment.
COPYRIGHT: (C)1977,JPO&Japio
JP5119076A 1976-05-04 1976-05-04 hard glass for watches Expired JPS5912611B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5119076A JPS5912611B2 (en) 1976-05-04 1976-05-04 hard glass for watches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5119076A JPS5912611B2 (en) 1976-05-04 1976-05-04 hard glass for watches

Publications (2)

Publication Number Publication Date
JPS52134470A true JPS52134470A (en) 1977-11-10
JPS5912611B2 JPS5912611B2 (en) 1984-03-24

Family

ID=12879938

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5119076A Expired JPS5912611B2 (en) 1976-05-04 1976-05-04 hard glass for watches

Country Status (1)

Country Link
JP (1) JPS5912611B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009186227A (en) * 2008-02-04 2009-08-20 Seiko Epson Corp Timepiece, light-transmitting member, and its manufacturing method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009186227A (en) * 2008-02-04 2009-08-20 Seiko Epson Corp Timepiece, light-transmitting member, and its manufacturing method

Also Published As

Publication number Publication date
JPS5912611B2 (en) 1984-03-24

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