JPS6442038A - Superconductive disk rom - Google Patents

Superconductive disk rom

Info

Publication number
JPS6442038A
JPS6442038A JP19789187A JP19789187A JPS6442038A JP S6442038 A JPS6442038 A JP S6442038A JP 19789187 A JP19789187 A JP 19789187A JP 19789187 A JP19789187 A JP 19789187A JP S6442038 A JPS6442038 A JP S6442038A
Authority
JP
Japan
Prior art keywords
holes
superconductive
ceramics film
disk
temp
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
JP19789187A
Other languages
Japanese (ja)
Inventor
Hideo Suzuki
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP19789187A priority Critical patent/JPS6442038A/en
Publication of JPS6442038A publication Critical patent/JPS6442038A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To enable the reading out with the same device as for superconductive magnetic disks by constituting the titled disk ROM of a disk-shaped substrate and thin high-temp. superconductive ceramics film bored with holes intermittently with recording binary information data and applying magnetic field onto this thin ceramics film so that permanent current is stored around the holes. CONSTITUTION:This disk ROM consists of the disk-shaped substrate 1 and the thin high-temp. superconductive ceramics film 2 coated and formed on the surface thereof. The holes 4 corresponding to the recording binary information data are bored in the thin high-temp. superconductive ceramics film 2. The recording binary information data is maintained by applying the magnetic fluxes to the holes 4. The magnetic fields are, therefore, penetrated only in the parts having the holes 4 and the eddy current I which is the permanent current exceeding the critical magnetic field Hc flows when the external magnetic fields He are applied thereto from above. The reading out of the written information by detecting the eddy current I is thereby enabled at the time of reading out.
JP19789187A 1987-08-07 1987-08-07 Superconductive disk rom Pending JPS6442038A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19789187A JPS6442038A (en) 1987-08-07 1987-08-07 Superconductive disk rom

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19789187A JPS6442038A (en) 1987-08-07 1987-08-07 Superconductive disk rom

Publications (1)

Publication Number Publication Date
JPS6442038A true JPS6442038A (en) 1989-02-14

Family

ID=16382010

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19789187A Pending JPS6442038A (en) 1987-08-07 1987-08-07 Superconductive disk rom

Country Status (1)

Country Link
JP (1) JPS6442038A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5079219A (en) * 1989-12-22 1992-01-07 University Of Colorado Foundation, Inc. Storing information-bearing signals in a superconductive environment using vortices as digital storage elements

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5079219A (en) * 1989-12-22 1992-01-07 University Of Colorado Foundation, Inc. Storing information-bearing signals in a superconductive environment using vortices as digital storage elements

Similar Documents

Publication Publication Date Title
DE68921236D1 (en) Magnetic recording disc with embedded servo information.
DE68919967D1 (en) Thin film magnetic head for vertical recording and playback.
MY113192A (en) Magnetic field sensor
KR860005336A (en) Ferromagnetic metal thin film magnetic recording medium and manufacturing method thereof
DE3668717D1 (en) THIN FILM CARRIER FOR VERTICAL MAGNETIC RECORDING WITH SUBSTRATE, INTERMEDIATE LAYER AND MAGNETIZABLE LAYER.
CA2082135A1 (en) Magneto-optical disk reproducing intensity control system
EP1311008A4 (en) Magnetoresistance effect device and magnetoresistance effect head comprising the same, and magnetic recording/reproducing apparatus
DE3763348D1 (en) Duennfilmmagnetkopf.
DE68915569D1 (en) Non-magnetic substrate of a magnetic head, magnetic head, and substrate manufacturing method.
JPS6442038A (en) Superconductive disk rom
KR880011738A (en) Magnetic recording media
JPS54157613A (en) Magnetic head
DE69020959D1 (en) A substrate for a magnetic disk and a magnetic recording medium using this substrate.
DK165888D0 (en) DEVICE FOR PROTECTION AGAINST MAGNETIC FLUX IN THE ENVIRONMENTAL ENVIRONMENT OF OBJECTS WHICH MAY BE CHANGED BY MOVING WITH MAGNETIC FLUX IS ISSUE WITH A MEDIUM WHICH MAGNETIC INFORMATION MAY BE REGISTERED
DE68919052T2 (en) Magnetic tape recording / playback device.
JPS558640A (en) Magnetic recording and reproducing system
JPS57113415A (en) Vertical magnetic recording medium
JPS5389706A (en) Magnetic recording medium and its manufacture
JPS57179920A (en) Vertical magnetization type magnetic head
JPS5215305A (en) Magnetic recording media
JPS56145536A (en) Recording and reproducing method for information signal and recording medium and pickup used for this
KR900010746A (en) Magnetic head control method
JPS57167103A (en) Recording method for vertical magnetization
JPS551611A (en) Megnetic recording and reproducing device
DE69108874D1 (en) Non-magnetic substrate of a magnetic head, magnetic head and substrate manufacturing processes.