Inventor

TAKATA YATSUKA

JP3 patents

Patents

3 patents

US4642219AFeb 10, 1987

Bearing steel and method of manufacturing the same

AICHI STEEL WORKS LTD23 citations76

US5403545AApr 4, 1995

Bearing steel

AICHI STEEL WORKS LTD10 citations68

US4702767AOct 27, 1987

Method of purifying a bearing steel

AICHI STEEL WORKS LTD6 citations68