Inventor · disambiguated record
Ryuzou Ishigaki
Also filed as: ISHIGAKI RYUZOU
1 granted patent·9 citations·filing 1993–1993
32Inventor score
Technology areasH04R
Files withMATSUSHITA ELECTRIC INDUSTRIAL CO LTD1
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1 recordIdentity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →