Method of testing anti-high temperature performance of a magnetic head and apparatus thereof

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United States of America Patent

PATENT NO 9899046
SERIAL NO

13064993

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Abstract

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A method of testing anti-high temperature performance of a magnetic head comprises applying a plurality of second magnetic fields with different intensities in a second direction to the magnetic head, and measuring a second output parameter curve, and judging whether a variation that is beyond an allowable value is presented on the second output parameter curve, therein the second direction passes through the ABS and at an angle whose absolute value is an acute angle to the ABS. The present invention can screen out defective magnetic heads that possess poor anti-high temperature performance without heating the magnetic head.

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Patent Owner(s)

Patent OwnerAddress
SAE MAGNETICS (H K ) LTDSAE TECHNOLOGY CENTRE 6 SCIENCE PARK EAST AVENUE HONG KONG SCIENCE PARK SHATIN N T HONG KONG

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ding, Juren Hong Kong, CN 20 101
Lam, Hokei Hong Kong, CN 5 7
Lee, Mankit Hong Kong, CN 13 35
Leung, Cheukwing Hong Kong, CN 14 33
Leung, Kwokkam Hong Kong, CN 2 3
Lueng, Chiuming Hong Kong, CN 11 25
Lui, Cheukman Hong Kong, CN 8 14
Ni, Rongkwang Hong Kong, CN 13 31

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