Permanent magnet, and electric machine comprising same, and a method for producing the electric machine

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United States of America Patent

PATENT NO 9653978
SERIAL NO

13800785

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Abstract

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Permanent magnet (10), containing at least one metal component (13) from the group of the rare earth metals, comprising a first coating film (20), which forms a cathodic protection against corrosion for the permanent magnet (10), the first coating film (20) containing a metal (23) which is more electronegative in the electrochemical series than the metal component (13) of the permanent magnet (10), wherein a second coating film (30), which is embodied in an electrically insulating fashion, is applied on the first coating film (20).

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Patent Owner(s)

Patent OwnerAddress
ROBERT BOSCH GMBHSTUTTGART GERMANY

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Eppel, Klaus Lauf, DE 3 2
Zernikow, Maik Hildesheim, DE 2 6

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