Title:
LAYER-BUILT COIL PRODUCT
Document Type and Number:
Japanese Patent JP3248373
Kind Code:
B2
Abstract:
PURPOSE: To obtain a layer-built coil product having a pair of coils having equal impedances and difficult to generate a leakage flux.
CONSTITUTION: A layer-built transformer 1 is composed of an insulator sheet 2 having coil conductors 41-44, 141-144 respectively formed on the surface and protective insulator sheet 2 having lead-out via-holes 10, 20, 12 and 21. The coil conductors 41-44, 141-144 form a primary coil 4 and secondary coil 14 in the form of a laminate and designed so that their effective current paths may be equal, and the coil conductors 41-44, 141-144 and external electrodes are designed to be perpendicular to a mounting face of the transformer 1.
Inventors:
Hiromichi Tokuda
Hirofumi Kobayashi
Hirofumi Kobayashi
Application Number:
JP29997194A
Publication Date:
January 21, 2002
Filing Date:
December 02, 1994
Export Citation:
Assignee:
MURATA MANUFACTURING CO.,LTD.
International Classes:
H01F17/00; H01F19/00; H01F37/00; (IPC1-7): H01F17/00; H01F19/00; H01F37/00
Domestic Patent References:
| JP4165606A | ||||
| JP670214U |
Other References:
【文献】米国特許3812442(US,A)
Attorney, Agent or Firm:
Takekazu Morishita
Previous Patent: DISK REPRODUCING AND RECORDING AND REPRODUCING DEVICE
Next Patent: HIGH EFFICIENCY CODING SIGNAL REPRODUCING DEVICE
Next Patent: HIGH EFFICIENCY CODING SIGNAL REPRODUCING DEVICE