Inventor · disambiguated record
Masahiko Tsujii
Also filed as: TSUJII MASAHIKO
12 granted patents·2 pending applications·99 citations·filing 1981–2007
89Inventor score
Top patents by PatentIndex Score
14 records- 0186US7375236B2Methods for producing cyclic benzamidine derivativesEISAI CO LTD·Filed 2005·Granted May 20, 2008·6 cites·17 claims
- 0281US6180652B1Sulfoxide compounds and acetone complexes, and a process for producing the sameEISAI CO LTD·Filed 1999·Granted Jan 30, 2001·32 cites·9 claims
- 0378US7084268B1Carbapenem compound crystals and interjection preparationsEISAI CO LTD·Filed 2000·Granted Aug 1, 2006·10 cites·1 claims
- 0475US6545024B1Sulfoxide compounds and acetone complexes, and a process for producing the sameEISAI CO LTD·Filed 2000·Granted Apr 8, 2003·8 cites·11 claims
- 0565US7754887B2Process for production of sulfoxide derivatives or salts thereof in the amorphous stateEISAI R&D MAN CO LTD·Filed 2007·Granted Jul 13, 2010·0 cites·7 claims
- 0662US4533494AProcess for purifying secretinEISAI CO LTD·Filed 1983·Granted Aug 6, 1985·18 cites·10 claims
- 0760US8043832B2Method for determination of inflammatory bowel diseaseUNIV OSAKA·Filed 2007·Granted Oct 25, 2011·1 cites·3 claims
- 0854US5547580APurification method of crude productEISAI KAGAKU KK·Filed 1995·Granted Aug 20, 1996·22 cites·13 claims
- 0952US2006040916A1Carbapenem compound crystals and injection preparationsEISAI CO LTD·Filed 2005·Application pending·0 cites
- 1048US2006178406A1Process for production of sulfoxide derivatives or salts thereof in the amorphous stateTSUJII MASAHIKO·Filed 2004·Application pending·0 cites
- 1137US5665888AProtected aminothiazolylacetic acid derivativesEISAI KAGAKU KK·Filed 1995·Granted Sep 9, 1997·1 cites·1 claims
- 1237US5631378AProtected aminothiazolylacetic acid derivativesEISAI KAGAKU KK·Filed 1996·Granted May 20, 1997·1 cites·1 claims
- 1331US5650518AProtected aminothiazolylacetic acid derivativesEISAI KAGAKU KK·Filed 1996·Granted Jul 22, 1997·0 cites·1 claims
- 1428US4407745AHeptacosapeptideEISAI CO LTD·Filed 1981·Granted Oct 4, 1983·0 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →