Inventor · disambiguated record
Sumio Ishihara
Also filed as: ISHIHARA SUMIO
2 granted patents·45 citations·filing 1989–1997
64Inventor score
Top patents by PatentIndex Score
2 records- 0156US5032542AMethod of mass-producing integrated circuit devices using strip lead frameSANYO ELECTRIC CO·Filed 1989·Granted Jul 16, 1991·17 cites·20 claims
- 0253US6122385ASound reproduction apparatus with stable feedbackMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Sep 19, 2000·28 cites·15 claims
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