JPS5668903A - Record disk and manufacture of record disk - Google Patents

Record disk and manufacture of record disk

Info

Publication number
JPS5668903A
JPS5668903A JP14507979A JP14507979A JPS5668903A JP S5668903 A JPS5668903 A JP S5668903A JP 14507979 A JP14507979 A JP 14507979A JP 14507979 A JP14507979 A JP 14507979A JP S5668903 A JPS5668903 A JP S5668903A
Authority
JP
Japan
Prior art keywords
characters
record disk
stamper
punched
disk
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
JP14507979A
Other languages
Japanese (ja)
Inventor
Toshiji Fujita
Yoshio Nagashima
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.)
Toppan Inc
Original Assignee
Toppan Printing Co Ltd
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 Toppan Printing Co Ltd filed Critical Toppan Printing Co Ltd
Priority to JP14507979A priority Critical patent/JPS5668903A/en
Publication of JPS5668903A publication Critical patent/JPS5668903A/en
Pending legal-status Critical Current

Links

Landscapes

  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE: To improve visual recognition and operation by displaying the recorded contents of a record disk by characters, formed by roughening the surface, as a substitute for a label.
CONSTITUTION: Mirror-surface part 2, where no signal is recorded, at the inner circumference or outer curcumference of an original copper disk, metal master, mold, or stamper 1 is covered with hydrophobic mask 10, made of a plastic film, etc., having pictures of characters, etc., punched and only exposed parts 2 are etched by etching solution 11, so that the punched picture parts will have thinnly rough uneven surfaces. Then, a record material, when formed by being compressed by stamper 1 with the rough surfaces, has characters to be displayed appearing in the mirror surface and a display of them can be seen with visual recognition by diffused reflection.
COPYRIGHT: (C)1981,JPO&Japio
JP14507979A 1979-11-09 1979-11-09 Record disk and manufacture of record disk Pending JPS5668903A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14507979A JPS5668903A (en) 1979-11-09 1979-11-09 Record disk and manufacture of record disk

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14507979A JPS5668903A (en) 1979-11-09 1979-11-09 Record disk and manufacture of record disk

Publications (1)

Publication Number Publication Date
JPS5668903A true JPS5668903A (en) 1981-06-09

Family

ID=15376889

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14507979A Pending JPS5668903A (en) 1979-11-09 1979-11-09 Record disk and manufacture of record disk

Country Status (1)

Country Link
JP (1) JPS5668903A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58100235A (en) * 1981-12-11 1983-06-14 Victor Co Of Japan Ltd Information recording disk and its character recording system
JPS62106383U (en) * 1985-12-23 1987-07-07
JPS63229676A (en) * 1987-03-19 1988-09-26 Matsushita Electric Ind Co Ltd optical disc
JPH0467252U (en) * 1990-10-17 1992-06-15
US5958651A (en) * 1996-07-11 1999-09-28 Wea Manufacturing Inc. Methods for providing artwork on plastic information discs

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58100235A (en) * 1981-12-11 1983-06-14 Victor Co Of Japan Ltd Information recording disk and its character recording system
JPS62106383U (en) * 1985-12-23 1987-07-07
JPS63229676A (en) * 1987-03-19 1988-09-26 Matsushita Electric Ind Co Ltd optical disc
JPH0467252U (en) * 1990-10-17 1992-06-15
US5958651A (en) * 1996-07-11 1999-09-28 Wea Manufacturing Inc. Methods for providing artwork on plastic information discs

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