Pentax 2003 Annual Report Download - page 11

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Glass Disks for HDDs
Disks of glass substrate are coated with a magnetic material to make HDDs, the memory devices in com-
puters and servers. Hoya produces both substrates (glass substrates, the polished glass disks) and media
(glass substrates coated with a magnetic layer), handling the manufacturing process from dissolving of the
glass to the final processing.
Since the bursting of the IT bubble, the market for PCs, the principal driver of demand for this
business, has continued to languish, and sales during the fiscal year under review remained slow. The
slowdown has led to a shakeout of the industry, however, and the number of companies to contend in
future markets has declined. At the same time, though, the expectations from customers for HDDs and
products that use them continue to increase. No longer just mass-storage memory devices for PCs or
servers, HDDs have come to be incorporated in such products as DVD recorders and digital cameras. As
the field of applications widens, the market grows with it.
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