Inductor devices – Core insulation
Reexamination Certificate
2004-03-25
2008-11-25
Nguyen, Tuyen T. (Department: 2832)
Inductor devices
Core insulation
Reexamination Certificate
active
07456724
ABSTRACT:
The present invention provides an electrical steel sheet core for a low-noise transformer capable of effectively lowering noise by suppressing vibration perpendicular to the surfaces of the steel sheets and reducing vibration, and relates to an electrical steel sheet for a low-noise transformer characterized by randomly inserting viscoelastic layers with both viscosity and elasticity into the gaps of the steel sheet lamination layers, and a low-noise transformer formed by using said electrical steel sheet.
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Akisue Osamu
Fujikura Masahiro
Mizokami Masato
Mogi Hisashi
Yabumoto Masao
Kenyon & Kenyon LLP
Nguyen Tuyen T.
Nippon Steel Corporation
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