GB2360136B - Variable inductance element and manufacturing method for the same - Google Patents

Variable inductance element and manufacturing method for the same

Info

Publication number
GB2360136B
GB2360136B GB0105519A GB0105519A GB2360136B GB 2360136 B GB2360136 B GB 2360136B GB 0105519 A GB0105519 A GB 0105519A GB 0105519 A GB0105519 A GB 0105519A GB 2360136 B GB2360136 B GB 2360136B
Authority
GB
United Kingdom
Prior art keywords
manufacturing
same
inductance element
variable inductance
variable
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 - Fee Related
Application number
GB0105519A
Other versions
GB0105519D0 (en
GB2360136A (en
Inventor
Naoki Iida
Masahiko Kawaguchi
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.)
Murata Manufacturing Co Ltd
Original Assignee
Murata Manufacturing Co 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 Murata Manufacturing Co Ltd filed Critical Murata Manufacturing Co Ltd
Publication of GB0105519D0 publication Critical patent/GB0105519D0/en
Publication of GB2360136A publication Critical patent/GB2360136A/en
Application granted granted Critical
Publication of GB2360136B publication Critical patent/GB2360136B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/0006—Printed inductances
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F21/00—Variable inductances or transformers of the signal type
    • H01F21/12—Variable inductances or transformers of the signal type discontinuously variable, e.g. tapped
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/041—Printed circuit coils
    • H01F41/045—Trimming
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/0006—Printed inductances
    • H01F2017/0073—Printed inductances with a special conductive pattern, e.g. flat spiral
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F21/00—Variable inductances or transformers of the signal type
    • H01F21/12—Variable inductances or transformers of the signal type discontinuously variable, e.g. tapped
    • H01F2021/125—Printed variable inductor with taps, e.g. for VCO

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Coils Or Transformers For Communication (AREA)
GB0105519A 2000-03-07 2001-03-06 Variable inductance element and manufacturing method for the same Expired - Fee Related GB2360136B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000061782A JP3307382B2 (en) 2000-03-07 2000-03-07 Variable inductance element and manufacturing method thereof

Publications (3)

Publication Number Publication Date
GB0105519D0 GB0105519D0 (en) 2001-04-25
GB2360136A GB2360136A (en) 2001-09-12
GB2360136B true GB2360136B (en) 2002-05-01

Family

ID=18581876

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0105519A Expired - Fee Related GB2360136B (en) 2000-03-07 2001-03-06 Variable inductance element and manufacturing method for the same

Country Status (3)

Country Link
JP (1) JP3307382B2 (en)
DE (1) DE10110950A1 (en)
GB (1) GB2360136B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5590085B2 (en) * 2012-09-20 2014-09-17 株式会社豊田自動織機 Intermediate of planar coil and method of manufacturing planar coil

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5619613A (en) * 1979-07-25 1981-02-24 Mitsubishi Electric Corp Manufacture of inductance element
JPH01189340A (en) * 1987-11-27 1989-07-28 Biro Guy Dion Bubble making apparatus
EP1076345A2 (en) * 1999-08-12 2001-02-14 Murata Manufacturing Co., Ltd. Variable inductance element

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08236308A (en) * 1995-02-22 1996-09-13 Murata Mfg Co Ltd Ceramic electronic component and adjusting method of characteristic value thereof
JP3250503B2 (en) * 1997-11-11 2002-01-28 株式会社村田製作所 Variable inductor element

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5619613A (en) * 1979-07-25 1981-02-24 Mitsubishi Electric Corp Manufacture of inductance element
JPH01189340A (en) * 1987-11-27 1989-07-28 Biro Guy Dion Bubble making apparatus
EP1076345A2 (en) * 1999-08-12 2001-02-14 Murata Manufacturing Co., Ltd. Variable inductance element

Also Published As

Publication number Publication date
GB0105519D0 (en) 2001-04-25
DE10110950A1 (en) 2001-09-20
JP3307382B2 (en) 2002-07-24
GB2360136A (en) 2001-09-12
JP2001250725A (en) 2001-09-14

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20110306