Inventor

SAKIYAMA TOSHIO

JP3 patents

⚠️ This page may combine multiple inventors who share the name “SAKIYAMA TOSHIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NIPPON KOKAN KK

2 patents

US5221459AJun 22, 1993

Method of manufacturing a magnetic disk substrate of titanium

NIPPON KOKAN KK43 citations89

US5131995AJul 21, 1992

Method of manufacturing titanium magnetic disk substrate

NIPPON KOKAN KK8 citations71

TAKAGI MASAKUNI

1 patent

US5136819AAug 11, 1992

Method for mirror polishing of ti-made magnetic disk substrate

TAKAGI MASAKUNI12 citations67