Assignee
OZAWA CONCRETE KOGYO KK
JP·3 granted patents·48 citations·filing 1978–1986
Top patents by PatentIndex Score
3 records- 0162US4224274AMethod for manufacture of concrete productsOZAWA CONCRETE KOGYO KK·Filed 1978·Granted Sep 23, 1980·12 cites·5 claims
- 0258US4774045AConcrete structural member and method for manufacture thereofOZAWA CONCRETE KOGYO KK·Filed 1986·Granted Sep 27, 1988·28 cites·4 claims
- 0343US4314957AMethod for manufacture of polymer-impregnated hollow concrete productOZAWA CONCRETE KOGYO KK·Filed 1980·Granted Feb 9, 1982·8 cites·4 claims
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