The advent of mobile computers in the 1990s required hard disk drives (HDDs) with much higher shock robustness than possible with aluminum-based media. Although, it is counterintuitive, only glass-based media using chemically strengthened glass met the shock resistance and cost requirements of this application. From the outset, Hoya led the industry in developing and supplying such glass substrates. This oral history records the history of Hoya's contributions under the leadership of Mr. Isao Suzuki.
Glass; Aluminosilicate; Hoya; Chemically strengthened; Glass-based disks; Shock-resistant drives; Mobile disk drives