Inventor · disambiguated record
Yasumasa Ishiwata
Also filed as: ISHIWATA YASUMASA
2 granted patents·71 citations·filing 1993–1995
67Inventor score
Technology areasG07C
Files withHITACHI LTD2
Top patents by PatentIndex Score
2 records- 0152US5434904AMobile termainal position information detection method and system using the methodHITACHI LTD·Filed 1993·Granted Jul 18, 1995·46 cites·4 claims
- 0240US5502758AMobile terminal position information detection method and system using the methodHITACHI LTD·Filed 1995·Granted Mar 26, 1996·25 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →