Inventor
MITAKI KAZUYA
JP5 patents
Patents
5 patentsUS4668100AMay 26, 1987
Electronic equipment with geomagnetic direction sensor
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US5519671AMay 21, 1996
Electronic equipment with depth measuring function
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US4879669ANov 7, 1989
Sensor signal processor
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US6466521B1Oct 15, 2002
Sensor function-equipped portable device
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US5753833AMay 19, 1998
Electronic watch having a water depth measuring function
CITIZEN WATCH CO LTD6 citations59