DE4120097C2 - Hochfrequenzspule - Google Patents

Hochfrequenzspule

Info

Publication number
DE4120097C2
DE4120097C2 DE4120097A DE4120097A DE4120097C2 DE 4120097 C2 DE4120097 C2 DE 4120097C2 DE 4120097 A DE4120097 A DE 4120097A DE 4120097 A DE4120097 A DE 4120097A DE 4120097 C2 DE4120097 C2 DE 4120097C2
Authority
DE
Germany
Prior art keywords
core
hole
housing
edge
frequency coil
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
Application number
DE4120097A
Other languages
German (de)
English (en)
Other versions
DE4120097A1 (de
Inventor
Yasunori Mamiya
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.)
Toko Inc
Original Assignee
Toko Inc
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 Toko Inc filed Critical Toko Inc
Publication of DE4120097A1 publication Critical patent/DE4120097A1/de
Application granted granted Critical
Publication of DE4120097C2 publication Critical patent/DE4120097C2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01F17/04—Fixed inductances of the signal type with magnetic core
    • H01F17/06—Fixed inductances of the signal type with magnetic core with core substantially closed in itself, e.g. toroid
    • 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
    • H01F21/02—Variable inductances or transformers of the signal type continuously variable, e.g. variometers
    • H01F21/06—Variable inductances or transformers of the signal type continuously variable, e.g. variometers by movement of core or part of core relative to the windings as a whole
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36—Electric or magnetic shields or screens
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36—Electric or magnetic shields or screens
    • H01F27/363—Electric or magnetic shields or screens made of electrically conductive material

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coils Or Transformers For Communication (AREA)
DE4120097A 1990-06-20 1991-06-18 Hochfrequenzspule Expired - Lifetime DE4120097C2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990065098U JPH0622969Y2 (ja) 1990-06-20 1990-06-20 高周波コイル

Publications (2)

Publication Number Publication Date
DE4120097A1 DE4120097A1 (de) 1992-01-09
DE4120097C2 true DE4120097C2 (de) 1995-09-07

Family

ID=13277102

Family Applications (1)

Application Number Title Priority Date Filing Date
DE4120097A Expired - Lifetime DE4120097C2 (de) 1990-06-20 1991-06-18 Hochfrequenzspule

Country Status (6)

Country Link
US (1) US5153547A (en, 2012)
JP (1) JPH0622969Y2 (en, 2012)
DE (1) DE4120097C2 (en, 2012)
GB (1) GB2246669B (en, 2012)
HK (1) HK93395A (en, 2012)
SG (1) SG18995G (en, 2012)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0824984A (ja) * 1994-07-18 1996-01-30 Fuji Oozx Inc 電気鍛縮機の電極

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2905913A (en) * 1954-12-14 1959-09-22 British Telecomm Res Ltd Inductors for use in light current electrical circuit
US3358255A (en) * 1965-06-08 1967-12-12 Cambridge Thermionic Corp Adjustable inductor
US3409850A (en) * 1965-10-28 1968-11-05 Oshima Masaomi Miniature inductance device for communication
US3480896A (en) * 1967-11-01 1969-11-25 Components Corp Adjustable inductor
JPH0642429B2 (ja) * 1988-12-05 1994-06-01 松下電器産業株式会社 可変インダクタ

Also Published As

Publication number Publication date
GB9113282D0 (en) 1991-08-07
SG18995G (en) 1995-06-16
DE4120097A1 (de) 1992-01-09
HK93395A (en) 1995-06-16
GB2246669A (en) 1992-02-05
JPH0423109U (en, 2012) 1992-02-26
JPH0622969Y2 (ja) 1994-06-15
US5153547A (en) 1992-10-06
GB2246669B (en) 1994-09-07

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8125 Change of the main classification

Ipc: H01F 21/06

D2 Grant after examination
8364 No opposition during term of opposition
R071 Expiry of right
R071 Expiry of right