Assignee
COPAL ELECTRONICS
JP12 patents
Top patents by PatentIndex Score
US5746515AMay 5, 1998
Dynamic-pressure gas bearing
COPAL ELECTRONICS20 citations87
US4627303ADec 9, 1986
Variable resistance device
COPAL ELECTRONICS7 citations74
US4771964ASep 20, 1988
Fishing reel
COPAL ELECTRONICS13 citations72
US4787723ANov 29, 1988
Ultra-wide angle F-θ lens system
COPAL ELECTRONICS15 citations71
US4832277AMay 23, 1989
Fishing reel
COPAL ELECTRONICS7 citations70
US5997180ADec 7, 1999
Circumferential flow type dynamic pressure bearing
COPAL ELECTRONICS15 citations68
US4894500AJan 16, 1990
Rotary selector switch
COPAL ELECTRONICS12 citations68
US4712084ADec 8, 1987
Potentiometer
COPAL ELECTRONICS8 citations68
US4807239AFeb 21, 1989
Drive and control circuit for laser diode
COPAL ELECTRONICS15 citations67
US4799628AJan 24, 1989
Level winder for double-bearing fishing reel
COPAL ELECTRONICS10 citations66
US4788393ANov 29, 1988
DIP rotary code switch
COPAL ELECTRONICS5 citations58
US4839627AJun 13, 1989
Variable resistor
COPAL ELECTRONICS3 citations57