Inventor · disambiguated record
Hajime Iizuka
Also filed as: IIZUKA HAJIME
20 granted patents·1 pending application·121 citations·filing 1982–2003
94Inventor score
Top patents by PatentIndex Score
21 records- 0188US4521415A6-(Substituted phenyl)-4,5-dihydro-3(2H)-pyridazinone compoundsMITSUI TOATSU CHEMICALS·Filed 1982·Granted Jun 4, 1985·19 cites·22 claims
- 0284US4539150ABenzothiazepine derivatives and their methods of preparationMITSUI TOATSU CHEMICALS·Filed 1984·Granted Sep 3, 1985·20 cites·9 claims
- 0383US7125983B2L-nucleic acid derivatives and process for the synthesis thereofMITSUI CHEMICALS INC·Filed 2001·Granted Oct 24, 2006·16 cites·17 claims
- 0476US4839376APyrazoline derivatives for treating cerebrovascular diseasesMITSUI TOATSU CHEMICALS·Filed 1988·Granted Jun 13, 1989·11 cites·8 claims
- 0573US5538985APyrrolidinone derivativesMITSUI TOATSU CHEMICALS·Filed 1995·Granted Jul 23, 1996·22 cites·12 claims
- 0667US4639451APyridazinone derivativesMITSUI TOATSU CHEMICALS·Filed 1982·Granted Jan 27, 1987·5 cites·22 claims
- 0766US4990529APyrazolone derivatives for treating cerebrovascular diseasesMITSUI TOATSU CHEMICALS·Filed 1989·Granted Feb 5, 1991·6 cites·1 claims
- 0864US6670447B2Amino acid N-carboxyanhydrides with acyl substituents on nitrogen atoms thereofMITSUI CHEMICALS INC·Filed 2001·Granted Dec 30, 2003·3 cites·9 claims
- 0956US4523011AProcess for preparing 6-(substituted phenyl)-4,5-dihydro-3(2H)-pyridazinone compoundsMITSUI TOATSU CHEMICALS·Filed 1984·Granted Jun 11, 1985·3 cites·12 claims
- 1051US4895947AProcess for producing 1-acyl-2-pyrazoline derivativeMITSUI TOATSU CHEMICALS·Filed 1988·Granted Jan 23, 1990·3 cites·16 claims
- 1149US2003171578A1Pyrrolidinone derivative compoundSCHERING AG·Filed 2003·Application pending·0 cites
- 1247US6555694B1Method for production of pyrrolidinone derivativesSCHERING AG·Filed 2000·Granted Apr 29, 2003·0 cites·3 claims
- 1344US5290793ADihydrocaffeic acid derivatives and pharmaceutical preparation containing sameMITSUI TOATSU CHEMICALS·Filed 1992·Granted Mar 1, 1994·2 cites·10 claims
- 1441US5089622A(-)-2-pyrazoline compounds and therapeutic agent for cerebrovascular disorders containing the same as effective ingredientMITSUI TOATSU CHEMICALS·Filed 1989·Granted Feb 18, 1992·1 cites·2 claims
- 1541US4965263A6-acylaminophenyl-5-alkyl-4,5-dihydro-3(2H)-pyridazinone compounds useful as blood pressure depressants, antithrombotic agents and in the treatment of heart diseaseMITSUI TOATSU CHEMICALS·Filed 1989·Granted Oct 23, 1990·1 cites·3 claims
- 1636US5338745AAmide derivatives of dihydrocaffeic acid and their application to pharmaceuticalsMITSUI TOATSU CHEMICALS·Filed 1991·Granted Aug 16, 1994·5 cites·3 claims
- 1736US5116979ADihydrocaffeic acid derivatives and pharmaceutical preparations containing sameMITSUI TOATSU CHEMICALS·Filed 1990·Granted May 26, 1992·2 cites·7 claims
- 1833US6207825B1Method for production of pyrrolidinone derivativesSCHERING AG·Filed 1998·Granted Mar 27, 2001·0 cites·4 claims
- 1933US5969138APyrrolidinone derivativesMITSUI CHEMICALS INC·Filed 1997·Granted Oct 19, 1999·2 cites·15 claims
- 2032US4539151ABenzothiazepine derivatives and their method of preparationMITSUI TOATSU CHEMICALS·Filed 1984·Granted Sep 3, 1985·0 cites·4 claims
- 2131US5075449AMethod of optically resolving (±)-1-(3-pyridylcarbonyl)-5-methyl-2-pyrazolineMITSUI TOATSU CHEMICALS·Filed 1990·Granted Dec 24, 1991·0 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →