Inventor

OHARA TOHRU

JP3 patents

Patents

3 patents

US5691256ANov 25, 1997

Glass composition for magnetic disk substrates and magnetic disk substrate

YAMAMURA GLASS CO LTD112 citations96

US5874376AFeb 23, 1999

Magnetic disk substrate

YAMAMURA GLASS CO LTD79 citations94

US5726108AMar 10, 1998

Glass-ceramic magnetic disk substrate

YAMAMURA GLASS CO LTD68 citations94