Assignee
SOKKISHA
JP14 patents
Top patents by PatentIndex Score
US5093839AMar 3, 1992
Frequency diversity receiving system based on cancellation of C/A code in GPS
SOKKISHA25 citations91
USD338206SAug 10, 1993
Antenna for a satellite location measuring receiver
SOKKISHA54 citations88
US4898452AFeb 6, 1990
Apparatus for mounting target plate on reflector for electronic distance meter
SOKKISHA30 citations86
US5204731AApr 20, 1993
Method and apparatus for measuring the coordinates of a surveyed point
SOKKISHA31 citations85
US5101570AApr 7, 1992
Inclination angle detector
SOKKISHA40 citations81
US4854704AAug 8, 1989
Optical automatic levelling apparatus
SOKKISHA42 citations81
USD326281SMay 19, 1992
Paperweight
SOKKISHA24 citations80
US5475395ADec 12, 1995
Reflecting mirror-equipped GPS receiving antenna apparatus
SOKKISHA9 citations73
US4621433ANov 11, 1986
Verticality detecting apparatus for plumbing columns
SOKKISHA19 citations70
USD335822SMay 25, 1993
Satellite location measuring receiver
SOKKISHA13 citations69
US4621436ANov 11, 1986
Position detecting apparatus
SOKKISHA10 citations69
US4731580AMar 15, 1988
Displacement sensing device with two magnetoresistance element sections used independently
SOKKISHA9 citations67
US4663853AMay 12, 1987
Mechanism for mounting measuring system using magnetic scale
SOKKISHA11 citations63
US4672317AJun 9, 1987
Multi-gap head apparatus for use with a magnetic scale
SOKKISHA3 citations56