DE69817666D1 - Magnetisch polarisiertes Material und Verfahren zu dessen Herstellung für magnetische Markierungselemente - Google Patents
Magnetisch polarisiertes Material und Verfahren zu dessen Herstellung für magnetische MarkierungselementeInfo
- Publication number
- DE69817666D1 DE69817666D1 DE69817666T DE69817666T DE69817666D1 DE 69817666 D1 DE69817666 D1 DE 69817666D1 DE 69817666 T DE69817666 T DE 69817666T DE 69817666 T DE69817666 T DE 69817666T DE 69817666 D1 DE69817666 D1 DE 69817666D1
- Authority
- DE
- Germany
- Prior art keywords
- production
- marking elements
- magnetically polarized
- polarized material
- magnetic marking
- 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.)
- Expired - Lifetime
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/22—Electrical actuation
- G08B13/24—Electrical actuation by interference with electromagnetic field distribution
- G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
- G08B13/2405—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting characterised by the tag technology used
- G08B13/2408—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting characterised by the tag technology used using ferromagnetic tags
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y25/00—Nanomagnetism, e.g. magnetoimpedance, anisotropic magnetoresistance, giant magnetoresistance or tunneling magnetoresistance
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/22—Electrical actuation
- G08B13/24—Electrical actuation by interference with electromagnetic field distribution
- G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
- G08B13/2428—Tag details
- G08B13/2437—Tag layered structure, processes for making layered tags
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/22—Electrical actuation
- G08B13/24—Electrical actuation by interference with electromagnetic field distribution
- G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
- G08B13/2428—Tag details
- G08B13/2437—Tag layered structure, processes for making layered tags
- G08B13/2442—Tag materials and material properties thereof, e.g. magnetic material details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/0036—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties showing low dimensional magnetism, i.e. spin rearrangements due to a restriction of dimensions, e.g. showing giant magnetoresistivity
- H01F1/0045—Zero dimensional, e.g. nanoparticles, soft nanoparticles for medical/biological use
- H01F1/0063—Zero dimensional, e.g. nanoparticles, soft nanoparticles for medical/biological use in a non-magnetic matrix, e.g. granular solids
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Nanotechnology (AREA)
- Automation & Control Theory (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Computer Security & Cryptography (AREA)
- Health & Medical Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Power Engineering (AREA)
- Hard Magnetic Materials (AREA)
- Burglar Alarm Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11225997 | 1997-04-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE69817666D1 true DE69817666D1 (de) | 2003-10-09 |
Family
ID=14582238
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69817666T Expired - Lifetime DE69817666D1 (de) | 1997-04-30 | 1998-04-28 | Magnetisch polarisiertes Material und Verfahren zu dessen Herstellung für magnetische Markierungselemente |
Country Status (3)
Country | Link |
---|---|
US (1) | US6001194A (de) |
EP (1) | EP0875874B1 (de) |
DE (1) | DE69817666D1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6893511B1 (en) | 1998-09-10 | 2005-05-17 | Hitachi Metals, Ltd. | Production method for semirigid magnetic material and semirigid material and magnetic marker using it |
CN100447911C (zh) * | 2006-06-16 | 2008-12-31 | 李霖 | 软磁材料偏置片的制造方法及使用该偏置片的防盗声磁标签 |
CN102298815B (zh) | 2011-05-20 | 2014-03-12 | 宁波讯强电子科技有限公司 | 一种高矫顽力偏置片、其制造方法及用其制成的声磁防盗标签 |
WO2013027665A1 (ja) * | 2011-08-19 | 2013-02-28 | 日立金属株式会社 | 半硬質磁性材料及びそれを用いてなる盗難防止用磁気センサ並びに半硬質磁性材料の製造方法 |
DE102016222781A1 (de) * | 2016-11-18 | 2018-05-24 | Vacuumschmelze Gmbh & Co. Kg | Halbhartmagnetische Legierung für einen Aktivierungsstreifen, Anzeigeelement und Verfahren zum Herstellen einer halbhartmagnetischen Legierung |
CN108564754B (zh) * | 2018-06-15 | 2024-06-04 | 宁波讯强电子科技有限公司 | 一种声磁防盗标签及其偏置片 |
CN112522636A (zh) * | 2020-11-13 | 2021-03-19 | 山东麦格智芯机电科技有限公司 | 一种Nb掺杂的铁铬钴永磁合金及其制备方法 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3938125A (en) * | 1974-02-20 | 1976-02-10 | Minnesota Mining And Manufacturing Company | Antipilferage system and marker therefor |
JPS5849007B2 (ja) * | 1979-10-31 | 1983-11-01 | 財団法人 電気磁気材料研究所 | 加工が容易で保磁力と最大エネルギ−積の大きい永久磁石およびその製造方法 |
JP2713711B2 (ja) * | 1987-11-17 | 1998-02-16 | 日立金属株式会社 | 防犯センサ用マーカ |
US5192375A (en) * | 1988-12-20 | 1993-03-09 | Kabushiki Kaisha Toshiba | Fe-based soft magnetic alloy |
CA2134342C (en) * | 1993-02-26 | 1999-06-01 | Toshiaki Mizoguchi | Thin cast strip and thin steel sheet of common carbon steel containing large amounts of copper and tin and process for producing the same |
US5565849A (en) * | 1995-02-22 | 1996-10-15 | Sensormatic Electronics Corporation | Self-biased magnetostrictive element for magnetomechanical electronic article surveillance systems |
US5469140A (en) * | 1994-06-30 | 1995-11-21 | Sensormatic Electronics Corporation | Transverse magnetic field annealed amorphous magnetomechanical elements for use in electronic article surveillance system and method of making same |
DE9412456U1 (de) * | 1994-08-02 | 1994-10-27 | Vacuumschmelze Gmbh, 63450 Hanau | Amorphe Legierung mit hoher Magnetostriktion und gleichzeitig hoher induzierter Anisotropie |
US5628840A (en) * | 1995-04-13 | 1997-05-13 | Alliedsignal Inc. | Metallic glass alloys for mechanically resonant marker surveillance systems |
JPH11172381A (ja) * | 1997-12-10 | 1999-06-29 | Hitachi Metals Ltd | 磁気マーカ用バイアス材および磁気マーカ |
-
1998
- 1998-04-28 EP EP98107741A patent/EP0875874B1/de not_active Expired - Lifetime
- 1998-04-28 DE DE69817666T patent/DE69817666D1/de not_active Expired - Lifetime
- 1998-04-29 US US09/069,115 patent/US6001194A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0875874B1 (de) | 2003-09-03 |
EP0875874A2 (de) | 1998-11-04 |
US6001194A (en) | 1999-12-14 |
EP0875874A3 (de) | 2000-04-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8332 | No legal effect for de |