Inventor

AIZAWA MICHIHIRO

JP3 patents

Patents

3 patents

US5834870ANov 10, 1998

Oil impregnated porous bearing units and motors provided with same

HITACHI LTD58 citations94

US5821655AOct 13, 1998

Magnetic fluid bearing unit structure and motor having the same

HITACHI LTD24 citations91

US5645355AJul 8, 1997

Bearing unit

HITACHI LTD27 citations91