IT7820989A0 - Dispositivo di magnetizzazione statica a campo localizzato. - Google Patents
Dispositivo di magnetizzazione statica a campo localizzato.Info
- Publication number
- IT7820989A0 IT7820989A0 IT7820989A IT2098978A IT7820989A0 IT 7820989 A0 IT7820989 A0 IT 7820989A0 IT 7820989 A IT7820989 A IT 7820989A IT 2098978 A IT2098978 A IT 2098978A IT 7820989 A0 IT7820989 A0 IT 7820989A0
- Authority
- IT
- Italy
- Prior art keywords
- magnetization device
- localized field
- field static
- static magnetization
- localized
- Prior art date
Links
- 230000005415 magnetization Effects 0.000 title 1
- 230000003068 static effect Effects 0.000 title 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/08—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes
- G06K7/082—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes using inductive or magnetic sensors
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K1/00—Methods or arrangements for marking the record carrier in digital fashion
- G06K1/12—Methods or arrangements for marking the record carrier in digital fashion otherwise than by punching
- G06K1/125—Methods or arrangements for marking the record carrier in digital fashion otherwise than by punching by magnetic means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F10/00—Thin magnetic films, e.g. of one-domain structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F13/00—Apparatus or processes for magnetising or demagnetising
- H01F13/003—Methods and devices for magnetising permanent magnets
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Artificial Intelligence (AREA)
- Digital Magnetic Recording (AREA)
- Magnetic Heads (AREA)
- Thin Magnetic Films (AREA)
- Magnetic Record Carriers (AREA)
- Inspection Of Paper Currency And Valuable Securities (AREA)
- Credit Cards Or The Like (AREA)
- Measuring Magnetic Variables (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7709823A FR2386112A1 (fr) | 1977-03-31 | 1977-03-31 | Dispositif d'aimantation statique a champ localise |
Publications (2)
Publication Number | Publication Date |
---|---|
IT7820989A0 true IT7820989A0 (it) | 1978-03-09 |
IT1109163B IT1109163B (it) | 1985-12-16 |
Family
ID=9188863
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT20989/78A IT1109163B (it) | 1977-03-31 | 1978-03-09 | Dispositivo di magnetizzazione statica a campo localizzato |
Country Status (9)
Country | Link |
---|---|
US (1) | US4194110A (it) |
JP (1) | JPS594062B2 (it) |
BR (1) | BR7801454A (it) |
DE (1) | DE2811560C2 (it) |
ES (1) | ES467303A1 (it) |
FR (1) | FR2386112A1 (it) |
GB (1) | GB1569086A (it) |
IT (1) | IT1109163B (it) |
NL (1) | NL7802640A (it) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1109303B (it) * | 1978-10-30 | 1985-12-16 | Ipm Ind Politecnica Meridional | Carta di credito a magnetizzazione anisotropa uniassale |
JPS6452223A (en) * | 1987-05-14 | 1989-02-28 | Nippon Telegraph & Telephone | Magnetic card |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3025503A (en) * | 1956-08-01 | 1962-03-13 | Honeywell Regulator Co | Information storage record and apparatus |
US3100834A (en) * | 1959-06-30 | 1963-08-13 | Ibm | Magnetic data processing |
US3409853A (en) * | 1966-10-14 | 1968-11-05 | Collins Corp G L | Method and apparatus for producing duplicate magnetized articles and articles produced thereby |
US3613101A (en) * | 1970-01-21 | 1971-10-12 | Digitronics Corp | Magnetic recording utilizing a selective magnetic shielding structure |
-
1977
- 1977-03-31 FR FR7709823A patent/FR2386112A1/fr active Granted
-
1978
- 1978-02-23 US US05/880,331 patent/US4194110A/en not_active Expired - Lifetime
- 1978-02-24 ES ES467303A patent/ES467303A1/es not_active Expired
- 1978-03-07 GB GB9083/78A patent/GB1569086A/en not_active Expired
- 1978-03-09 IT IT20989/78A patent/IT1109163B/it active
- 1978-03-09 BR BR7801454A patent/BR7801454A/pt unknown
- 1978-03-10 NL NL7802640A patent/NL7802640A/xx not_active Application Discontinuation
- 1978-03-16 DE DE2811560A patent/DE2811560C2/de not_active Expired
- 1978-03-28 JP JP53034934A patent/JPS594062B2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US4194110A (en) | 1980-03-18 |
IT1109163B (it) | 1985-12-16 |
FR2386112B1 (it) | 1980-02-01 |
BR7801454A (pt) | 1978-10-31 |
GB1569086A (en) | 1980-06-11 |
FR2386112A1 (fr) | 1978-10-27 |
DE2811560A1 (de) | 1978-10-12 |
NL7802640A (nl) | 1978-10-03 |
DE2811560C2 (de) | 1983-03-31 |
JPS594062B2 (ja) | 1984-01-27 |
ES467303A1 (es) | 1978-10-16 |
JPS53123112A (en) | 1978-10-27 |
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