Inventor · disambiguated record
Hisatugu Anzai
Also filed as: ANZAI HISATUGU
3 granted patents·50 citations·filing 1984–1986
71Inventor score
Files withRYOBI LTD3
Top patents by PatentIndex Score
3 records- 0156US4715146AApparatus for closing fireproof doorsRYOBI LTD·Filed 1986·Granted Dec 29, 1987·24 cites·8 claims
- 0251US4656690AFireproof door closer and holder having a solenoid and a toggle mechanismRYOBI LTD·Filed 1985·Granted Apr 14, 1987·19 cites·8 claims
- 0333US4598494AApparatus for closing fireproof doorsRYOBI LTD·Filed 1984·Granted Jul 8, 1986·7 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →