Inventor · disambiguated record

Sumio Ishimatsu

Also filed as: ISHIMATSU SUMIO

2 granted patents·63 citations·filing 1994–1997

65Inventor score

Technology areasH10H

Files withTOSHIBA KK2

Top patents by PatentIndex Score

2 records

0169US5789265AMethod of manufacturing blue light-emitting device by using BCL3 and CL2TOSHIBA KK·Filed 1997·Granted Aug 4, 1998·50 cites·28 claims
0241US5457328ASemiconductor light emitting device having strong directivity of light emissionTOSHIBA KK·Filed 1994·Granted Oct 10, 1995·13 cites·7 claims

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