Inventor
HIROTOMI JUN
JP7 patents
Patents
7 patentsUS6535376B2Mar 18, 2003
Wrist-carried information device
SEIKO INSTR INC25 citations92
US5365139ANov 15, 1994
Electronic apparatus with ultrasonic motor
SEIKO INSTR INC27 citations92
US5550795AAug 27, 1996
Electronic timepiece and a method of driving a stepping motor of electronic timepiece
SEIKO INSTR INC24 citations91
US5142249AAug 25, 1992
Current-controlled oscillator controlled by control voltage and stored data
SEIKO INSTR INC28 citations90
US5153486AOct 6, 1992
Ultrasonic motor
SEIKO INSTR INC10 citations71
US5101144AMar 31, 1992
Ultrasonic motor driving circuit
SEIKO INSTR INC9 citations71
US4873477AOct 10, 1989
Driving circuit for actuator
SEIKO INSTR INC7 citations71