Inventor · disambiguated record

Hirotaka Usuda

Also filed as: USUDA HIROTAKA

2 granted patents·1 citations·filing 1974–1976

29Inventor score

Technology areasH04Q

Files withHITACHI LTD2

Top patents by PatentIndex Score

2 records

0125US4039758ALine identifying system of common control type automatic exchangeHITACHI LTD·Filed 1976·Granted Aug 2, 1977·1 cites·8 claims
0222US3967071ASwitching system of stored program control typeHITACHI LTD·Filed 1974·Granted Jun 29, 1976·0 cites·7 claims

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →