Inventor

HIROYAMA HIROO

JP5 patents

Patents

5 patents

US4938611AJul 3, 1990

Bearing apparatus

HITACHI LTD43 citations92

US5493161AFeb 20, 1996

Sealed magnetic fluid bearing for polygon mirror drive motor

HITACHI LTD23 citations91

US5325006AJun 28, 1994

Sealed magnetic fluid bearing for polygon mirror drive motor

HITACHI LTD42 citations91

USRE35718EJan 27, 1998

Bearing apparatus

HITACHI LTD13 citations73

US4093320AJun 6, 1978

Grooved spherical bearing for vertical machines

HITACHI LTD4 citations57