Assignee
NIHON CEMENT
JP·19 granted patents·347 citations·filing 1974–1996
Top patents by PatentIndex Score
19 records- 0194US4547223ACement-shrinkage-reducing agent and cement compositionNIHON CEMENT·Filed 1981·Granted Oct 15, 1985·95 cites·6 claims
- 0283US3951735AProcess for preparing gypsum boardNIHON CEMENT·Filed 1974·Granted Apr 20, 1976·43 cites·8 claims
- 0377US5181961ACement compositionNIHON CEMENT·Filed 1991·Granted Jan 26, 1993·37 cites·6 claims
- 0476US5547505ACompositions for low heat cementsNIHON CEMENT·Filed 1995·Granted Aug 20, 1996·38 cites·14 claims
- 0564US4984675AArticle sorting deviceNIHON CEMENT·Filed 1989·Granted Jan 15, 1991·22 cites·4 claims
- 0661US4818511AProcess and apparatus for producing non-oxide compoundsNIHON CEMENT·Filed 1987·Granted Apr 4, 1989·24 cites·8 claims
- 0756US4886533AGas filterNIHON CEMENT·Filed 1988·Granted Dec 12, 1989·24 cites·4 claims
- 0841US4941561AArticle sorting deviceNIHON CEMENT·Filed 1989·Granted Jul 17, 1990·9 cites·2 claims
- 0940US5302329AProcess for producing β-sialon based sintered bodiesNIHON CEMENT·Filed 1989·Granted Apr 12, 1994·10 cites·10 claims
- 1037US5731251AOxide ceramic sintered bodiesNIHON CEMENT·Filed 1996·Granted Mar 24, 1998·5 cites·7 claims
- 1135US4263264AMethod of abating nitrogen oxides in combustion waste gasesNIHON CEMENT·Filed 1980·Granted Apr 21, 1981·8 cites·4 claims
- 1233US5665663AMethod for manufacturing oxide ceramic sintered bodiesNIHON CEMENT·Filed 1995·Granted Sep 9, 1997·4 cites·5 claims
- 1331US5834106ACeramic substrate and producing process thereof, and a suction carrier for wafers using a ceramic wafer-chucking substrateNIHON CEMENT·Filed 1993·Granted Nov 10, 1998·9 cites·4 claims
- 1431US5209613ADiamond tool and method of producing the sameNIHON CEMENT·Filed 1991·Granted May 11, 1993·10 cites·20 claims
- 1529US5492872ACeramic mirrors and method of manufacturing sameNIHON CEMENT·Filed 1992·Granted Feb 20, 1996·2 cites·7 claims
- 1628US5631075AHeat-insulating panel serving as concrete formNIHON CEMENT·Filed 1994·Granted May 20, 1997·5 cites·4 claims
- 1727US5650366ACeramic mirrorsNIHON CEMENT·Filed 1996·Granted Jul 22, 1997·0 cites·10 claims
- 1825US4617059ADemolition agent for brittle materialsNIHON CEMENT·Filed 1985·Granted Oct 14, 1986·0 cites·2 claims
- 1921US5700414AHeat-insulating panel serving as concrete form and method of manufacturing the sameNIHON CEMENT·Filed 1995·Granted Dec 23, 1997·2 cites·2 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →