Inventor · disambiguated record

Umeo Doyama

Also filed as: DOYAMA UMEO

2 granted patents·11 citations·filing 1979–1979

55Inventor score

Technology areasD05B G05B

Files withRICCAR CO LTD2

Top patents by PatentIndex Score

2 records

0149US4258638AElectromagnetic control device for sewing machineRICCAR CO LTD·Filed 1979·Granted Mar 31, 1981·5 cites·8 claims
0230US4417531ASewing machine with electronic controlled stitch pattern generatorRICCAR CO LTD·Filed 1979·Granted Nov 29, 1983·6 cites·8 claims

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