Glass for magnetic recording media substrates, magnetic recording media substrates, magnetic recording media and method for preparation thereof

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United States of America Patent

PATENT NO 9016092
APP PUB NO 20110086241A1
SERIAL NO

12933398

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Abstract

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A glass for a magnetic recording medium substrate permitting the realization of a magnetic recording medium substrate affording good chemical durability and having an extremely flat surface, a magnetic recording medium substrate comprised of this glass, a magnetic recording medium equipped with this substrate, and methods of manufacturing the same. The glass is an oxide glass not including As or F.

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Patent Owner(s)

  • HOYA CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hachitani, Yoichi Shinjuku-ku, JP 29 472
Osakabe, Kinobu Shinjuku-ku, JP 36 543

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