Inventor · disambiguated record
Chitoshi Shimakawa
Also filed as: SHIMAKAWA CHITOSHI
18 granted patents·235 citations·filing 1986–2020
92Inventor score
Files withMITSUI CHEMICALS INC11MITSUI TOATSU CHEMICALS4FUKATSU NORIHIKO1KUMA SHIGETOSHI1SHIMAKAWA CHITOSHI1
Top patents by PatentIndex Score
18 records- 0196US5693738AComposition for urethane-base plastic lens, urethane-base plastic lens obtained from the composition, and process for the production of the plastic lensMITSUI TOATSU CHEMICALS·Filed 1995·Granted Dec 2, 1997·129 cites·18 claims
- 0294US6300464B2Polymerizable compositionMITSUI CHEMICALS INC·Filed 2000·Granted Oct 9, 2001·37 cites·18 claims
- 0380US9227925B2Process for producing aldehyde compoundsKUMA SHIGETOSHI·Filed 2012·Granted Jan 5, 2016·4 cites·17 claims
- 0479US6204311B1Polymerizable compositionMITSUI CHEMICALS INC·Filed 1999·Granted Mar 20, 2001·16 cites·10 claims
- 0573US5955206APolysulfide-based resin composition, polysulfide-based resin, and optical material comprising the resinMITSUI CHEMICALS INC·Filed 1996·Granted Sep 21, 1999·27 cites·15 claims
- 0670US6458917B2Polymerizable compositionMITSUI CHEMICALS INC·Filed 2001·Granted Oct 1, 2002·6 cites·10 claims
- 0769US11254783B2Xylylenediisocyanate composition, xylylenediisocyanate-modified composition, two-component resin material, and resinMITSUI CHEMICALS INC·Filed 2020·Granted Feb 22, 2022·0 cites·3 claims
- 0867US10640605B2Xylylenediisocyanate composition, xylylenediisocyanate-modified composition, two-component resin material, and resinMITSUI CHEMICALS INC·Filed 2018·Granted May 5, 2020·0 cites·16 claims
- 0967US6365707B1Polymerizable composition and process for producing optical resin comprising the sameMITSUI CHEMICALS INC·Filed 2000·Granted Apr 2, 2002·7 cites·9 claims
- 1054US9708260B2Method for producing meta-xylylenediamines and method for producing bisamide compoundMITSUI CHEMICALS INC·Filed 2014·Granted Jul 18, 2017·0 cites·7 claims
- 1153US7354989B2Thioepoxy based polymerizable composition and method for production thereofMITSUI CHEMICALS INC·Filed 2003·Granted Apr 8, 2008·2 cites·9 claims
- 1251US9670148B2Method for producing meta-xylylenediisocyanatesMITSUI CHEMICALS INC·Filed 2014·Granted Jun 6, 2017·0 cites·6 claims
- 1345US10844010B2Process for producing (poly)sulfide compound and process for producing episulfide compoundMITSUI CHEMICALS INC·Filed 2017·Granted Nov 24, 2020·0 cites·8 claims
- 1445US4684449AProcess for producing m-hydroxybenzyl alcoholMITSUI TOATSU CHEMICALS·Filed 1986·Granted Aug 4, 1987·5 cites·5 claims
- 1540US8183404B2Process for producing dicyanonorbornane and zerovalent nickel complex catalystFUKATSU NORIHIKO·Filed 2007·Granted May 22, 2012·0 cites·4 claims
- 1635US8183407B2Process for production of isocyanate, isocyanate produced by the process, and use of the isocyanateSHIMAKAWA CHITOSHI·Filed 2006·Granted May 22, 2012·0 cites·11 claims
- 1735US5108558AProcess for the electroreduction of aromatic carboxylic acidsMITSUI TOATSU CHEMICALS·Filed 1989·Granted Apr 28, 1992·2 cites·19 claims
- 1830US5068459AProcess for producing m-phenoxybenzyl alcoholMITSUI TOATSU CHEMICALS·Filed 1990·Granted Nov 26, 1991·0 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →