Inventor · disambiguated record

Tsutomu Yoshiya

Also filed as: YOSHIYA TSUTOMU

2 granted patents·76 citations·filing 1984–1998

66Inventor score

Technology areasG01M H04B

Files withHITACHI LTD2

Top patents by PatentIndex Score

2 records

0181US4880289ATwo-way optical transmission systemHITACHI LTD·Filed 1984·Granted Nov 14, 1989·50 cites·20 claims
0262US6661503B1Method for manufacturing optic transmission modules and system for inspecting bit error rate charactersHITACHI LTD·Filed 1998·Granted Dec 9, 2003·26 cites·16 claims

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