Inventor · disambiguated record
Yoshiji Hiraoka
Also filed as: HIRAOKA YOSHIJI
4 granted patents·218 citations·filing 1977–1986
82Inventor score
Top patents by PatentIndex Score
4 records- 0192US4312907AWater-impermeable sheet materialHIRAOKA & CO LTD·Filed 1980·Granted Jan 26, 1982·60 cites·20 claims
- 0291US4686135AComposite sheet materialHIRAOKA & CO LTD·Filed 1985·Granted Aug 11, 1987·64 cites·20 claims
- 0389US4714650AStainproof, flame-resistant composite sheet materialHIRAOKA & CO LTD·Filed 1986·Granted Dec 22, 1987·84 cites·16 claims
- 0465USD253013SHorseshoeHIRAOKA YOSHIJI·Filed 1977·Granted Sep 25, 1979·10 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →