Inventor
KUROIWA KATSUMASA
JP28 patents
⚠️ This page may combine multiple inventors who share the name “KUROIWA KATSUMASA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NITTO BOSEKI CO LTD
25 patentsUS5153176AOct 6, 1992
Tripeptide derivatives and protease inhibitor composition comprising the same
NITTO BOSEKI CO LTD45 citations91
US4281181AJul 28, 1981
Novel L-γ-glutamyl-3-carboxy-4-hydroxyanilide and salts thereof
NITTO BOSEKI CO LTD30 citations89
US4450105AMay 22, 1984
Substrates for measuring thrombin
NITTO BOSEKI CO LTD20 citations81
US5399488AMar 21, 1995
Method for assaying enzyme activity using N-acetyl-β-D-glucosamine derivatives
NITTO BOSEKI CO LTD8 citations73
US4816562AMar 28, 1989
Novel substrate for plasma kallikrein and a method for measuring biological components using the same
NITTO BOSEKI CO LTD6 citations73
US5508385AApr 16, 1996
Tripeptide derivatives containing pyroglutamic acid residue
NITTO BOSEKI CO LTD8 citations72
US4883863ANov 28, 1989
Tripeptide derivatives and antiplasmin agents containing the same
NITTO BOSEKI CO LTD12 citations72
US4584398AApr 22, 1986
Arginyl-3-carboxy-4-hydroxyanilide
NITTO BOSEKI CO LTD12 citations71
US4650753AMar 17, 1987
Novel substrates for use in measuring the concentration of kallikrein in urine
NITTO BOSEKI CO LTD5 citations63
US5081274AJan 14, 1992
4-acyl-2,6-dihalophenyl-phosphoric acid derivatives useful in the determination of acid phosphatase activity
NITTO BOSEKI CO LTD4 citations62
US4717659AJan 5, 1988
Novel method for determining cholinesterase activity
NITTO BOSEKI CO LTD2 citations62
US4605614AAug 12, 1986
Method for measuring plasmin
NITTO BOSEKI CO LTD4 citations62
US4520100AMay 28, 1985
Method for measuring thrombin
NITTO BOSEKI CO LTD2 citations62
US4452736AJun 5, 1984
Substrates for measuring plasmin
NITTO BOSEKI CO LTD4 citations62
US5063152ANov 5, 1991
Synthetic peptidic substrate for determination of trypsin and α1
NITTO BOSEKI CO LTD3 citations60
US4564695AJan 14, 1986
Process for producing arginyl-p-nitroanilide
NITTO BOSEKI CO LTD5 citations60
US5719030AFeb 17, 1998
Monoclonal antibody to prostate-derived acid phosphatase and method for determination of acid phosphatase using the same as well as kit for determination
NITTO BOSEKI CO LTD5 citations59
US4336331AJun 22, 1982
Method for assaying the activity of γ-glutamyl transpeptidase in serum
NITTO BOSEKI CO LTD4 citations59
US5416238AMay 16, 1995
L-argininal acetal derivatives and a process for production thereof
NITTO BOSEKI CO LTD1 citations52
US5227291AJul 13, 1993
Method for determination of acid phosphatase activity using 4-acyl-2, 6-dihalophenyl phosphoric acid derivatives
NITTO BOSEKI CO LTD1 citations52
US5151372ASep 29, 1992
Method for determination of hydroxyacetophenone derivatives
NITTO BOSEKI CO LTD0 citations52
US4861713AAug 29, 1989
Novel method for determining cholinesterase activity
NITTO BOSEKI CO LTD1 citations52
US5116941AMay 26, 1992
Peptide substrates for determination of enzyme activity
NITTO BOSEKI CO LTD1 citations51
US5115099AMay 19, 1992
Substrates for determination of enzyme activity and intermediates for synthesis of the substrates as well as process for producing the intermediates
NITTO BOSEKI CO LTD0 citations51
US4894438AJan 16, 1990
Synthetic peptidic substrate for determination of trypsin and α1
NITTO BOSEKI CO LTD0 citations49