WO2008156079A1 - Magnetic sheet, process for producing the same, antenna, and portable communications equipment - Google Patents

Magnetic sheet, process for producing the same, antenna, and portable communications equipment Download PDF

Info

Publication number
WO2008156079A1
WO2008156079A1 PCT/JP2008/061039 JP2008061039W WO2008156079A1 WO 2008156079 A1 WO2008156079 A1 WO 2008156079A1 JP 2008061039 W JP2008061039 W JP 2008061039W WO 2008156079 A1 WO2008156079 A1 WO 2008156079A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic sheet
magnetic
producing
communications equipment
portable communications
Prior art date
Application number
PCT/JP2008/061039
Other languages
French (fr)
Japanese (ja)
Inventor
Keisuke Aramaki
Junichiro Sugita
Morio Sekiguchi
Original Assignee
Sony Chemical & Information Device Corporation
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
Priority claimed from JP2008136338A external-priority patent/JP4773479B2/en
Application filed by Sony Chemical & Information Device Corporation filed Critical Sony Chemical & Information Device Corporation
Priority to KR1020097026915A priority Critical patent/KR101161488B1/en
Priority to CN2008800210892A priority patent/CN101689418B/en
Publication of WO2008156079A1 publication Critical patent/WO2008156079A1/en
Priority to US12/633,393 priority patent/US8295786B2/en
Priority to HK10105569A priority patent/HK1139783A1/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/364—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith using a particular conducting material, e.g. superconductor
    • 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
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/20—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder
    • H01F1/22—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
    • H01F1/24—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated
    • H01F1/26—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated by macromolecular organic substances
    • 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
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/34—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites
    • H01F1/36—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites in the form of particles
    • H01F1/37—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites in the form of particles in a bonding agent
    • H01F1/375—Flexible bodies

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Soft Magnetic Materials (AREA)

Abstract

A magnetic sheet that while ensuring favorable magnetic properties and reliability, is improved in the resistance characteristics at being bent; a process for producing the magnetic sheet; and a relevant antenna and portable communications equipment. The magnetic sheet contains flattened magnetic powder and a resin binder soluble in a solvent. The magnetic sheet has the following characteristics. The content of magnetic powder and resin binder has a gradient with respect to the direction of thickness of the magnetic sheet. In use, the magnetic sheet is bent so that among the obverse and reverse surfaces of the magnetic sheet, the surface with a lower content of magnetic powder comes inside. Between the obverse and reverse surfaces of the magnetic sheet, the glossiness difference at an incident angle of 60° is 9.4 or greater.
PCT/JP2008/061039 2007-06-21 2008-06-17 Magnetic sheet, process for producing the same, antenna, and portable communications equipment WO2008156079A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1020097026915A KR101161488B1 (en) 2007-06-21 2008-06-17 Magnetic sheet, process for producing the same, antenna, and portable communications equipment
CN2008800210892A CN101689418B (en) 2007-06-21 2008-06-17 Magnetic sheet, process for producing the same, antenna, and portable communications equipment
US12/633,393 US8295786B2 (en) 2007-06-21 2009-12-08 Magnetic sheet, method for producing the magnetic sheet, antenna, and portable communication device
HK10105569A HK1139783A1 (en) 2007-06-21 2010-06-07 Magnetic sheet, method for producing the magnetic sheet, antenna, and portable communication device

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2007-163861 2007-06-21
JP2007163861 2007-06-21
JP2008136338A JP4773479B2 (en) 2007-06-21 2008-05-26 Magnetic sheet, method for manufacturing magnetic sheet, antenna, and portable communication device
JP2008-136338 2008-05-26

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/633,393 Continuation US8295786B2 (en) 2007-06-21 2009-12-08 Magnetic sheet, method for producing the magnetic sheet, antenna, and portable communication device

Publications (1)

Publication Number Publication Date
WO2008156079A1 true WO2008156079A1 (en) 2008-12-24

Family

ID=40156238

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/061039 WO2008156079A1 (en) 2007-06-21 2008-06-17 Magnetic sheet, process for producing the same, antenna, and portable communications equipment

Country Status (1)

Country Link
WO (1) WO2008156079A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010079666A1 (en) * 2009-01-08 2010-07-15 ソニーケミカル＆インフォメーションデバイス株式会社 Antenna structure, communication apparatus, and method of manufacturing antenna structure
JP2011227978A (en) * 2010-03-30 2011-11-10 Panasonic Corp Method for manufacturing magnetic sheet, and magnetic sheet
JP2012043971A (en) * 2010-08-19 2012-03-01 Toko Inc Magnetic core manufacturing method

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000144077A (en) * 1998-11-17 2000-05-26 Hitachi Chem Co Ltd Double-sided adhesive film and semiconductor device using the same
JP2003257723A (en) * 2002-02-28 2003-09-12 Daido Steel Co Ltd Composite magnetic sheet and its manufacturing method
JP2006114725A (en) * 2004-10-15 2006-04-27 Matsushita Electric Ind Co Ltd Magnetic sheet and manufacturing method thereof
JP2006173443A (en) * 2004-12-17 2006-06-29 Matsushita Electric Ind Co Ltd Magnetic sheet
WO2007007834A1 (en) * 2005-07-14 2007-01-18 Sony Chemicals & Information Device Corporation Flame-retardant soft magnetic sheet
JP2007095829A (en) * 2005-09-27 2007-04-12 Nitta Ind Corp Electromagnetic wave absorbing sheet and method of manufacturing same
JP2007123868A (en) * 2005-09-30 2007-05-17 Nitta Ind Corp Electromagnetic interference suppressor, method of suppressing electromagnetic interference using same, and radio frequency identification device
JP2008004624A (en) * 2006-06-20 2008-01-10 Alps Electric Co Ltd Magnetic material sheet
JP2008060395A (en) * 2006-08-31 2008-03-13 Sony Chemical & Information Device Corp Magnetic sheet, and method of manufacturing the same

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000144077A (en) * 1998-11-17 2000-05-26 Hitachi Chem Co Ltd Double-sided adhesive film and semiconductor device using the same
JP2003257723A (en) * 2002-02-28 2003-09-12 Daido Steel Co Ltd Composite magnetic sheet and its manufacturing method
JP2006114725A (en) * 2004-10-15 2006-04-27 Matsushita Electric Ind Co Ltd Magnetic sheet and manufacturing method thereof
JP2006173443A (en) * 2004-12-17 2006-06-29 Matsushita Electric Ind Co Ltd Magnetic sheet
WO2007007834A1 (en) * 2005-07-14 2007-01-18 Sony Chemicals & Information Device Corporation Flame-retardant soft magnetic sheet
JP2007095829A (en) * 2005-09-27 2007-04-12 Nitta Ind Corp Electromagnetic wave absorbing sheet and method of manufacturing same
JP2007123868A (en) * 2005-09-30 2007-05-17 Nitta Ind Corp Electromagnetic interference suppressor, method of suppressing electromagnetic interference using same, and radio frequency identification device
JP2008004624A (en) * 2006-06-20 2008-01-10 Alps Electric Co Ltd Magnetic material sheet
JP2008060395A (en) * 2006-08-31 2008-03-13 Sony Chemical & Information Device Corp Magnetic sheet, and method of manufacturing the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010079666A1 (en) * 2009-01-08 2010-07-15 ソニーケミカル＆インフォメーションデバイス株式会社 Antenna structure, communication apparatus, and method of manufacturing antenna structure
JP2011227978A (en) * 2010-03-30 2011-11-10 Panasonic Corp Method for manufacturing magnetic sheet, and magnetic sheet
JP2012043971A (en) * 2010-08-19 2012-03-01 Toko Inc Magnetic core manufacturing method

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