Inventor · disambiguated record
Takuo Fukushima
Also filed as: FUKUSHIMA TAKUO
6 granted patents·105 citations·filing 1985–1993
84Inventor score
Top patents by PatentIndex Score
6 records- 0168US5396749AMethod of cutting off water flow by groutingASAHI DENKI KOGYO·Filed 1993·Granted Mar 14, 1995·25 cites·11 claims
- 0266US5193960AWasher with elastic water-swellable rubberASAHI DENKA KOGYO KK·Filed 1991·Granted Mar 16, 1993·34 cites·10 claims
- 0352US5044835AExpansion joint for use in constructing concrete structuresASAHI DENKA KOGYO KK·Filed 1989·Granted Sep 3, 1991·20 cites·16 claims
- 0450US4816509AWater swellable sealantASAHI DENKA KOGYO KK·Filed 1985·Granted Mar 28, 1989·9 cites·22 claims
- 0542US4905429ADevice for filling up of recess left in concrete wall after removalASAHI DENKA KOGYO KK·Filed 1987·Granted Mar 6, 1990·14 cites·3 claims
- 0620US4889312AWaterstop for concrete form separatorASAHI DENKA KOGYO KK·Filed 1987·Granted Dec 26, 1989·3 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →