JPS52117628A - Photo mask - Google Patents

Photo mask

Info

Publication number
JPS52117628A
JPS52117628A JP3475776A JP3475776A JPS52117628A JP S52117628 A JPS52117628 A JP S52117628A JP 3475776 A JP3475776 A JP 3475776A JP 3475776 A JP3475776 A JP 3475776A JP S52117628 A JPS52117628 A JP S52117628A
Authority
JP
Japan
Prior art keywords
photo mask
photo
mask
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
JP3475776A
Other languages
Japanese (ja)
Inventor
Masatarou Saitou
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 JP3475776A priority Critical patent/JPS52117628A/en
Publication of JPS52117628A publication Critical patent/JPS52117628A/en
Pending legal-status Critical Current

Links

JP3475776A 1976-03-29 1976-03-29 Photo mask Pending JPS52117628A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3475776A JPS52117628A (en) 1976-03-29 1976-03-29 Photo mask

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3475776A JPS52117628A (en) 1976-03-29 1976-03-29 Photo mask

Publications (1)

Publication Number Publication Date
JPS52117628A true JPS52117628A (en) 1977-10-03

Family

ID=12423177

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3475776A Pending JPS52117628A (en) 1976-03-29 1976-03-29 Photo mask

Country Status (1)

Country Link
JP (1) JPS52117628A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02207253A (en) * 1989-02-07 1990-08-16 Rohm Co Ltd Photomask for pattern formation and exposing method
JP2007292089A (en) * 2006-04-20 2007-11-08 Pacific Ind Co Ltd Valve core

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02207253A (en) * 1989-02-07 1990-08-16 Rohm Co Ltd Photomask for pattern formation and exposing method
JP2007292089A (en) * 2006-04-20 2007-11-08 Pacific Ind Co Ltd Valve core

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