JPS5346712A - Magnetic memory device - Google Patents

Magnetic memory device

Info

Publication number
JPS5346712A
JPS5346712A JP12127176A JP12127176A JPS5346712A JP S5346712 A JPS5346712 A JP S5346712A JP 12127176 A JP12127176 A JP 12127176A JP 12127176 A JP12127176 A JP 12127176A JP S5346712 A JPS5346712 A JP S5346712A
Authority
JP
Japan
Prior art keywords
memory device
magnetic memory
dust
air
trespass
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
JP12127176A
Other languages
Japanese (ja)
Inventor
Yoichi Kawakubo
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP12127176A priority Critical patent/JPS5346712A/en
Publication of JPS5346712A publication Critical patent/JPS5346712A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To prevent the trespass of the external air so as to improve the dust preventing effect in a system where the dust prevention is carried out through inducing the clean air of dust-proof into the magnetic disk and the magnetic head, by arranging a check valve in the air exhaust port.
COPYRIGHT: (C)1978,JPO&Japio
JP12127176A 1976-10-12 1976-10-12 Magnetic memory device Pending JPS5346712A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12127176A JPS5346712A (en) 1976-10-12 1976-10-12 Magnetic memory device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12127176A JPS5346712A (en) 1976-10-12 1976-10-12 Magnetic memory device

Publications (1)

Publication Number Publication Date
JPS5346712A true JPS5346712A (en) 1978-04-26

Family

ID=14807110

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12127176A Pending JPS5346712A (en) 1976-10-12 1976-10-12 Magnetic memory device

Country Status (1)

Country Link
JP (1) JPS5346712A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4759030A (en) * 1985-06-14 1988-07-19 Hitachi, Ltd. Semiconductor laser
US4896331A (en) * 1987-03-30 1990-01-23 Sony Corporation Distributed feedback semiconductor laser
US10267015B2 (en) 2013-09-26 2019-04-23 9277-9347 Quebec Inc. Surface-forming equipment and motorized surface-forming equipment

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4759030A (en) * 1985-06-14 1988-07-19 Hitachi, Ltd. Semiconductor laser
US4896331A (en) * 1987-03-30 1990-01-23 Sony Corporation Distributed feedback semiconductor laser
US10267015B2 (en) 2013-09-26 2019-04-23 9277-9347 Quebec Inc. Surface-forming equipment and motorized surface-forming equipment

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