Inventor · disambiguated record
Yuuji Shimasaki
Also filed as: SHIMASAKI YUUJI
23 granted patents·198 citations·filing 1986–2014
95Inventor score
Top patents by PatentIndex Score
23 records- 0179US6436243B1Process for recovering N-vinyl-2-pyrrolidoneNIPPON CATALYTIC CHEM IND·Filed 2000·Granted Aug 20, 2002·12 cites·6 claims
- 0275US5700946AProcess for production of N-vinyl compoundNIPPON CATALYTIC CHEM IND·Filed 1996·Granted Dec 23, 1997·37 cites·4 claims
- 0372US6489515B2Gas-phase dehydration reaction processNIPPON CATALYTIC CHEM IND·Filed 2001·Granted Dec 3, 2002·8 cites·32 claims
- 0472US5625076ACatalyst for production of tertiary N-alkenyl carboxylic acid amide, and process for production of tertiary N-alkenyl carboxylic acid amide using said catalystNIPPON CATALYTIC CHEM IND·Filed 1995·Granted Apr 29, 1997·13 cites·6 claims
- 0570US5847213AProcess for production of tertiary amine compoundNIPPON CATALYTIC CHEM IND·Filed 1997·Granted Dec 8, 1998·15 cites·17 claims
- 0669US6090988AMethod for recovering alkyl vinyl etherNIPPON CATALYTIC CHEM IND·Filed 1998·Granted Jul 18, 2000·12 cites·19 claims
- 0768US4731488AVapor-phase hydrogen transfer reaction of carbonyl compound with alcoholNIPPON CATALYTIC CHEM IND·Filed 1986·Granted Mar 15, 1988·9 cites·8 claims
- 0866US5326903AProcess for preparing isocyanates using sintered oxidesNIPPON CATALYTIC CHEM IND·Filed 1992·Granted Jul 5, 1994·12 cites·10 claims
- 0964US6391994B2Production process for vinylpyrrolidone polymerNIPPON CATALYTIC CHEM IND·Filed 2001·Granted May 21, 2002·6 cites·16 claims
- 1063US5304656AProcess for preparing alkylene sulfidesNIPPON CATALYTIC CHEM IND·Filed 1992·Granted Apr 19, 1994·9 cites·9 claims
- 1160US5801252AProcess for production of cyclic N-vinyl carboxylic acid amideNIPPON CATALYTIC CHEM IND·Filed 1997·Granted Sep 1, 1998·8 cites·10 claims
- 1254US10099189B2Packing for reaction tube, reaction tube, and reaction method using sameNIPPON CATALYTIC CHEM IND·Filed 2014·Granted Oct 16, 2018·0 cites·12 claims
- 1349US5262570AMethod of producing ethylenediaminesNIPPON CATALYTIC CHEM IND·Filed 1993·Granted Nov 16, 1993·4 cites·8 claims
- 1448US4774218ACatalyst for vapor-phase intramolecular dehydration reaction of alkanolaminesNIPPON CATALYTIC CHEM IND·Filed 1986·Granted Sep 27, 1988·9 cites·1 claims
- 1547US4841061AProcess for producing cyclic aminesNIPPON CATALYTIC CHEM IND·Filed 1987·Granted Jun 20, 1989·10 cites·13 claims
- 1645US5773669AProcess for production of vinyl etherNIPPON CATALYTIC CHEM IND·Filed 1997·Granted Jun 30, 1998·3 cites·7 claims
- 1745US4966980AProcess for producing aziridinesNIPPON CATALYTIC CHEM IND·Filed 1988·Granted Oct 30, 1990·7 cites·25 claims
- 1841US4833248ACatalyst for vapor-phase intramolecular dehydration reaction of alkanolaminesNIPPON CATALYTIC CHEM IND·Filed 1988·Granted May 23, 1989·6 cites·5 claims
- 1940US4841060AVapor-phase intramolecular dehydration reaction of alkanolaminesNIPPON CATALYTIC CHEM IND·Filed 1988·Granted Jun 20, 1989·6 cites·6 claims
- 2038US5650544AProcess for production of unsaturated ether and catalyst used for production of unsaturated etherNIPPON CATALYTIC CHEM IND·Filed 1995·Granted Jul 22, 1997·6 cites·10 claims
- 2135US5235107AMethod of producing ethylenediaminesNIPPON CATALYTIC CHEM IND·Filed 1991·Granted Aug 10, 1993·1 cites·10 claims
- 2231US6235859B1Production process for polyvinyl ether and catalyst used for the processNIPPON SHOKUBAH CO LTD·Filed 1999·Granted May 22, 2001·3 cites·11 claims
- 2328US5231189AProcess for producing n-substituted aziridine compoundNIPPON CATALYTIC CHEM IND·Filed 1991·Granted Jul 27, 1993·2 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →