Inventor
NITADORI KOJI
JP7 patents
Patents
7 patentsUS6384503B1May 7, 2002
Motor
SEIKO INSTR INC56 citations95
US6307291B1Oct 23, 2001
Hydraulic dynamic bearing and spindle motor and rotary assembly provided
SEIKO INSTR INC59 citations95
US6371650B1Apr 16, 2002
Hydraulic dynamic bearing and spindle motor and rotary assembly provided
SEIKO INSTR INC52 citations92
US6984919B2Jan 10, 2006
Control system for ultrasonic motor
SEIKO INSTR INC17 citations84
US6354742B1Mar 12, 2002
Hydraulic dynamic bearing and spindle motor
SEIKO INSTR INC15 citations83
US6247848B1Jun 19, 2001
Hydraulic dynamic bearing and spindle motor utilizing hydraulic dynamic bearing
SEIKO INSTR INC15 citations83
US6371649B1Apr 16, 2002
Method for lubricating a fluid dynamic pressure bearing
SEIKO INSTR INC10 citations72