Inventor · disambiguated record
Hiroyuki Sigiyama
Also filed as: SIGIYAMA HIROYUKI
1 granted patent·1 citations·filing 1982–1982
15Inventor score
Technology areasG11B
Files withVICTOR COMPANY OF JAPAN1
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1 recordIdentity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →