Inventor
MANDAI MASAAKI
20 patents
⚠️ This page may combine multiple inventors who share the name “MANDAI MASAAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SEIKO INSTR & ELECTRONICS
14 patentsUS4326278AApr 20, 1982
Electronic timepiece
SEIKO INSTR & ELECTRONICS41 citations91
US4382691AMay 10, 1983
Electronic watch
SEIKO INSTR & ELECTRONICS22 citations82
US4321521AMar 23, 1982
Detection device of electronic timepiece
SEIKO INSTR & ELECTRONICS21 citations82
US4321520AMar 23, 1982
Electronic timepiece
SEIKO INSTR & ELECTRONICS18 citations82
US4312059AJan 19, 1982
Electronic timepiece
SEIKO INSTR & ELECTRONICS23 citations82
US4276626AJun 30, 1981
Electronic watch
SEIKO INSTR & ELECTRONICS8 citations74
US4272837AJun 9, 1981
Electronic timepiece with rotation detector
SEIKO INSTR & ELECTRONICS16 citations74
US4271496AJun 2, 1981
Electronic watch
SEIKO INSTR & ELECTRONICS7 citations74
US4217751AAug 19, 1980
Electronic timepiece
SEIKO INSTR & ELECTRONICS8 citations74
US4204397AMay 27, 1980
Electronic timepiece
SEIKO INSTR & ELECTRONICS12 citations74
US4352172ASep 28, 1982
Detection device of electronic timepiece
SEIKO INSTR & ELECTRONICS10 citations73
US4321519AMar 23, 1982
Magnetic field detection device for electronic timepiece
SEIKO INSTR & ELECTRONICS11 citations73
US4437769AMar 20, 1984
Electronic timepiece
SEIKO INSTR & ELECTRONICS4 citations62
US4445784AMay 1, 1984
Electronic timepiece
SEIKO INSTR & ELECTRONICS4 citations61
SEIKO INSTR INC
6 patentsUS5763903AJun 9, 1998
Avalanche photodiode for light detection
SEIKO INSTR INC45 citations92
US5744379AApr 28, 1998
Semiconductor device composed of plural semiconductor chips and coupling means which couple the semiconductor chips together
SEIKO INSTR INC17 citations92
US5076543ADec 31, 1991
Projection pad using liquid crystal panel
SEIKO INSTR INC18 citations73
US5869893AFeb 9, 1999
Semiconductor device having a trapezoidal joint chip
SEIKO INSTR INC9 citations72
US5639693AJun 17, 1997
Semiconductor device and process for fabricating the same
SEIKO INSTR INC8 citations72
US5977575ANov 2, 1999
Semiconductor sensor device comprised of plural sensor chips connected to function as a unit
SEIKO INSTR INC3 citations63