Inventor · disambiguated record
Katsumasa Kuroiwa
Also filed as: KODAMA OSAMU · KUROIWA KATSUMASA
28 granted patents·230 citations·filing 1975–1995
96Inventor score
Top patents by PatentIndex Score
28 records- 0187US4281181ANovel L-γ-glutamyl-3-carboxy-4-hydroxyanilide and salts thereofNITTO BOSEKI CO LTD·Filed 1979·Granted Jul 28, 1981·30 cites·1 claims
- 0279US5153176ATripeptide derivatives and protease inhibitor composition comprising the sameNITTO BOSEKI CO LTD·Filed 1991·Granted Oct 6, 1992·45 cites·1 claims
- 0373US3972773AProcess for producing peptideSAGAMI CHEM RES·Filed 1975·Granted Aug 3, 1976·16 cites·9 claims
- 0471US4450105ASubstrates for measuring thrombinNITTO BOSEKI CO LTD·Filed 1982·Granted May 22, 1984·20 cites·1 claims
- 0562US4883863ATripeptide derivatives and antiplasmin agents containing the sameNITTO BOSEKI CO LTD·Filed 1988·Granted Nov 28, 1989·12 cites·6 claims
- 0662US4622389ANovel substrate for determining the activity of blood coagulation factor Xa (Stuart-Prower factor)NITTO POSEKI CO LTD·Filed 1985·Granted Nov 11, 1986·26 cites·1 claims
- 0756US4564695AProcess for producing arginyl-p-nitroanilideNITTO BOSEKI CO LTD·Filed 1984·Granted Jan 14, 1986·5 cites·4 claims
- 0854US5399488AMethod for assaying enzyme activity using N-acetyl-β-D-glucosamine derivativesNITTO BOSEKI CO LTD·Filed 1994·Granted Mar 21, 1995·8 cites·6 claims
- 0951US4584398AArginyl-3-carboxy-4-hydroxyanilideNITTO BOSEKI CO LTD·Filed 1985·Granted Apr 22, 1986·12 cites·1 claims
- 1048US5508385ATripeptide derivatives containing pyroglutamic acid residueNITTO BOSEKI CO LTD·Filed 1991·Granted Apr 16, 1996·8 cites·2 claims
- 1148US4209459ANovel L-leucyl-4-hydroxyanilide derivativesIATRON LAB·Filed 1979·Granted Jun 24, 1980·5 cites·3 claims
- 1246US4816562ANovel substrate for plasma kallikrein and a method for measuring biological components using the sameNITTO BOSEKI CO LTD·Filed 1986·Granted Mar 28, 1989·6 cites·5 claims
- 1344US4650753ANovel substrates for use in measuring the concentration of kallikrein in urineNITTO BOSEKI CO LTD·Filed 1985·Granted Mar 17, 1987·5 cites·6 claims
- 1441US4605614AMethod for measuring plasminNITTO BOSEKI CO LTD·Filed 1984·Granted Aug 12, 1986·4 cites·2 claims
- 1541US4452736ASubstrates for measuring plasminNITTO BOSEKI CO LTD·Filed 1982·Granted Jun 5, 1984·4 cites·1 claims
- 1639US5081274A4-acyl-2,6-dihalophenyl-phosphoric acid derivatives useful in the determination of acid phosphatase activityNITTO BOSEKI CO LTD·Filed 1989·Granted Jan 14, 1992·4 cites·4 claims
- 1737US4336331AMethod for assaying the activity of γ-glutamyl transpeptidase in serumNITTO BOSEKI CO LTD·Filed 1981·Granted Jun 22, 1982·4 cites·1 claims
- 1836US5063152ASynthetic peptidic substrate for determination of trypsin and α1NITTO BOSEKI CO LTD·Filed 1989·Granted Nov 5, 1991·3 cites·3 claims
- 1935US5416238AL-argininal acetal derivatives and a process for production thereofNITTO BOSEKI CO LTD·Filed 1991·Granted May 16, 1995·1 cites·3 claims
- 2033US5719030AMonoclonal antibody to prostate-derived acid phosphatase and method for determination of acid phosphatase using the same as well as kit for determinationNITTO BOSEKI CO LTD·Filed 1995·Granted Feb 17, 1998·5 cites·1 claims
- 2133US4717659ANovel method for determining cholinesterase activityNITTO BOSEKI CO LTD·Filed 1985·Granted Jan 5, 1988·2 cites·7 claims
- 2233US4520100AMethod for measuring thrombinNITTO BOSEKI CO LTD·Filed 1984·Granted May 28, 1985·2 cites·1 claims
- 2331US5116941APeptide substrates for determination of enzyme activityNITTO BOSEKI CO LTD·Filed 1989·Granted May 26, 1992·1 cites·5 claims
- 2431US4861713ANovel method for determining cholinesterase activityNITTO BOSEKI CO LTD·Filed 1987·Granted Aug 29, 1989·1 cites·6 claims
- 2530US5227291AMethod for determination of acid phosphatase activity using 4-acyl-2, 6-dihalophenyl phosphoric acid derivativesNITTO BOSEKI CO LTD·Filed 1991·Granted Jul 13, 1993·1 cites·2 claims
- 2629US5151372AMethod for determination of hydroxyacetophenone derivativesNITTO BOSEKI CO LTD·Filed 1990·Granted Sep 29, 1992·0 cites·6 claims
- 2729US5115099ASubstrates for determination of enzyme activity and intermediates for synthesis of the substrates as well as process for producing the intermediatesNITTO BOSEKI CO LTD·Filed 1989·Granted May 19, 1992·0 cites·6 claims
- 2828US4894438ASynthetic peptidic substrate for determination of trypsin and α1NITTO BOSEKI CO LTD·Filed 1986·Granted Jan 16, 1990·0 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →