EP 0170425 A1 19860205 - Method of manufacturing cylindrical coil.
Title (en)
Method of manufacturing cylindrical coil.
Title (de)
Verfahren zur Herstellung einer zylindrischen Spule.
Title (fr)
Méthode pour fabriquer une bobine cylindrique.
Publication
Application
Priority
JP 14116684 A 19840707
Abstract (en)
In a method for manufacturing a cylindrical coil having a spiral conductor (20) on the outer peripheral surface of a cylindrical insulator (10), a conductor layer is formed on the outer peripheral surface of a cylindrical insulator by deposition, plating or the like and a spiral separated portion is then formed in said conductor layer by etching, machining and the like, thereby forming a spiral conductor.
IPC 1-7
IPC 8 full level
G01B 7/00 (2006.01); G01D 5/48 (2006.01); H01F 41/04 (2006.01)
CPC (source: EP)
H01F 41/04 (2013.01); H01F 2017/004 (2013.01)
Citation (search report)
- [X] US 1994767 A 19350319 - HEINTZ RALPH M
- [X] FR 2204857 A1 19740524 - SIEMENS AG [DE]
- [A] US 3891918 A 19750624 - ELLIS JAMES F
- [A] FR 2523719 A1 19830923 - MERLIN GERIN [FR]
- [X] PATENTS ABSTRACTS OF JAPAN, vol. 7, no. 276 (E-215)[1421], 9th December 1983; & JP - A - 58 155 714 (NIHON BARUKAA KOGYO K.K.) 16-09-1983
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
DOCDB simple family (application)
EP 85304707 A 19850702; JP 14116684 A 19840707