Inventor · disambiguated record
Masakazu Nishiyama
Also filed as: NISHIYAMA MASAKAZU
19 granted patents·2 pending applications·332 citations·filing 1985–2013
95Inventor score
Top patents by PatentIndex Score
21 records- 0192US9718905B2Polythiophene, water-soluble electrically conductive polymer using it, and method for producing itTOSOH CORP·Filed 2013·Granted Aug 1, 2017·20 cites·10 claims
- 0289US6783852B2High-absorbent polyvinyl alcohol fibers and nonwoven fabric comprising themKURARAY CO·Filed 2003·Granted Aug 31, 2004·49 cites·16 claims
- 0388US7482490B2Amine compound having fluorene group as framework, process for producing the amine compound, and use of the amine compoundTOSOH CORP·Filed 2005·Granted Jan 27, 2009·7 cites·14 claims
- 0483US5110678ASynthetic polyvinyl alcohol fiber and process for its productionKURARAY CO·Filed 1990·Granted May 5, 1992·37 cites·3 claims
- 0581US8647741B2Polypropylene fiber, method of producing the same and utilization of the sameKATAYAMA TAKASHI·Filed 2008·Granted Feb 11, 2014·7 cites·40 claims
- 0681US6066396AFlame-retardant polyvinyl alcohol base fiberKURARAY CO·Filed 1998·Granted May 23, 2000·37 cites·9 claims
- 0780US6034206APolyaryleneamines and a process for their productionTOSOH CORP·Filed 1998·Granted Mar 7, 2000·38 cites·15 claims
- 0880US5929281AProcess for producing heterocyclic aromatic amine or arylamineTOSOH CORP·Filed 1997·Granted Jul 27, 1999·30 cites·2 claims
- 0979US8865336B2Separator for alkaline battery, method for producing the same, and batteryHAYAKAWA TOMOHIRO·Filed 2007·Granted Oct 21, 2014·4 cites·18 claims
- 1077US4763882ACoated coil springNHK SPRING CO LTD·Filed 1986·Granted Aug 16, 1988·38 cites·6 claims
- 1176US8097366B2Alkaline battery separator comprising alkali-resistance synthetic fiber, fibrillated organic solvent-spun cellulose fiber and mercerized pulp, and alkaline primary batteryHARADA TOSHIMITSU·Filed 2006·Granted Jan 17, 2012·5 cites·6 claims
- 1271US4886256AVehicle suspension device with a coil spring embedded in an open cell foamNHK SPRING CO LTD·Filed 1985·Granted Dec 12, 1989·34 cites·31 claims
- 1368US8993805B2Benzofluorene compound and use thereofNISHIYAMA MASAKAZU·Filed 2007·Granted Mar 31, 2015·4 cites·18 claims
- 1466US6346621B1Nitrogen-heterocyclic compound and process for production thereofTOSOH CORP·Filed 2000·Granted Feb 12, 2002·3 cites·20 claims
- 1563US7608680B2Triarylamine polymer, process for producing the same, and use thereofTOSOH CORP·Filed 2006·Granted Oct 27, 2009·1 cites·10 claims
- 1657US7189877B2Arylamine derivatives having fluorene skeleton, synthetic intermediates thereof, processes of producing those, and organic electrolumivescene devicesTOSCH CORP·Filed 2003·Granted Mar 13, 2007·9 cites·21 claims
- 1752US7803953B2Catalyst for producing arylamine and process for producing arylamine by means thereofTOSOH CORP·Filed 2007·Granted Sep 28, 2010·0 cites·3 claims
- 1849US5380588APolyvinyl alcohol-based synthetic fiberKURARAY CO·Filed 1992·Granted Jan 10, 1995·9 cites·3 claims
- 1948US8211573B2Multilayered conductive sheet and electrodeNISHIYAMA MASAKAZU·Filed 2011·Granted Jul 3, 2012·0 cites·15 claims
- 2044US2006186797A1Pi-conjugated compound having cardo structure, process for preparing same and use of sameTOSOH CORP·Filed 2006·Application pending·0 cites
- 2142US2006017040A9Novel triarylamine polymer, process for producing the same, and use thereofSUZUKI TAKAO·Filed 2003·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →