Inventor
OTAWA SHUJI
7 patents
⚠️ This page may combine multiple inventors who share the name “OTAWA SHUJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SEIKO INSTR & ELECTRONICS
6 patentsUS4321521AMar 23, 1982
Detection device of electronic timepiece
SEIKO INSTR & ELECTRONICS21 citations82
US4321520AMar 23, 1982
Electronic timepiece
SEIKO INSTR & ELECTRONICS18 citations82
US4358840ANov 9, 1982
Analogue alarm electronic timepiece
SEIKO INSTR & ELECTRONICS12 citations73
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