Inventor · disambiguated record
Takeshi Nagasawa
Also filed as: AKATSUKA TADAMI · NAGASAWA TAKESHI
38 granted patents·1 pending application·300 citations·filing 1974–2007
97Inventor score
Files withNITTO BOSEKI CO LTD35IATRON LAB1NISSHIN OILLIO GROUP LTD1NITTO POSEKI CO LTD1SAGAMI CHEM RES1
Top patents by PatentIndex Score
39 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
- 0568US3936452AProcess of producing pyrimidyl thiocarbonatesNITTO BOSEKI CO LTD·Filed 1974·Granted Feb 3, 1976·8 cites·9 claims
- 0662US4883863ATripeptide derivatives and antiplasmin agents containing the sameNITTO BOSEKI CO LTD·Filed 1988·Granted Nov 28, 1989·12 cites·6 claims
- 0762US4622389ANovel 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
- 0858US3932375AUse of 2-pyrimidine thiol carbonates as acylating agents for amino or imino containing compoundsNITTO BOSEKI CO LTD·Filed 1974·Granted Jan 13, 1976·5 cites·14 claims
- 0956US4564695AProcess for producing arginyl-p-nitroanilideNITTO BOSEKI CO LTD·Filed 1984·Granted Jan 14, 1986·5 cites·4 claims
- 1054US5399488AMethod for assaying enzyme activity using N-acetyl-β-D-glucosamine derivativesNITTO BOSEKI CO LTD·Filed 1994·Granted Mar 21, 1995·8 cites·6 claims
- 1151US4584398AArginyl-3-carboxy-4-hydroxyanilideNITTO BOSEKI CO LTD·Filed 1985·Granted Apr 22, 1986·12 cites·1 claims
- 1249US6268166B1Method of quantitative assay for 1,5-anhydroglucitolNITTO BOSEKI CO LTD·Filed 1994·Granted Jul 31, 2001·15 cites·6 claims
- 1348US5508385ATripeptide derivatives containing pyroglutamic acid residueNITTO BOSEKI CO LTD·Filed 1991·Granted Apr 16, 1996·8 cites·2 claims
- 1448US4209459ANovel L-leucyl-4-hydroxyanilide derivativesIATRON LAB·Filed 1979·Granted Jun 24, 1980·5 cites·3 claims
- 1547US5468621AMethod of quantitative assay for 1,5-anhydroglucitolNITTO BOSEKI CO LTD·Filed 1993·Granted Nov 21, 1995·11 cites·7 claims
- 1646US4816562ANovel 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
- 1745US5486458AMethod of quantitative assay for 1,5-anhydroglucitolNITTO BOSEKI CO LTD·Filed 1993·Granted Jan 23, 1996·11 cites·7 claims
- 1844US4650753ANovel substrates for use in measuring the concentration of kallikrein in urineNITTO BOSEKI CO LTD·Filed 1985·Granted Mar 17, 1987·5 cites·6 claims
- 1943US5126329AGlucosamine derivatives and compositions reagents and containing the sameNITTO BOSEKI CO LTD·Filed 1989·Granted Jun 30, 1992·6 cites·8 claims
- 2043US2007231446A1Method for producing oil and fat composition with reduced trans-fatty acid content and processed oil and fat product containing the oil and fat compositionNISSHIN OILLIO GROUP LTD·Filed 2007·Application pending·0 cites
- 2141US4605614AMethod for measuring plasminNITTO BOSEKI CO LTD·Filed 1984·Granted Aug 12, 1986·4 cites·2 claims
- 2241US4452736ASubstrates for measuring plasminNITTO BOSEKI CO LTD·Filed 1982·Granted Jun 5, 1984·4 cites·1 claims
- 2339US5081274A4-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
- 2437US4336331AMethod for assaying the activity of γ-glutamyl transpeptidase in serumNITTO BOSEKI CO LTD·Filed 1981·Granted Jun 22, 1982·4 cites·1 claims
- 2536US5063152ASynthetic peptidic substrate for determination of trypsin and α1NITTO BOSEKI CO LTD·Filed 1989·Granted Nov 5, 1991·3 cites·3 claims
- 2636US4983756ANovel choline derivative and method for detemining serum cholinesterase activity using the sameNITTO BOSEKI CO LTD·Filed 1989·Granted Jan 8, 1991·5 cites·4 claims
- 2735US5416238AL-argininal acetal derivatives and a process for production thereofNITTO BOSEKI CO LTD·Filed 1991·Granted May 16, 1995·1 cites·3 claims
- 2834US5869276AMethod for determination of direct bilirubin and reagent thereforNITTO BOSEKI CO LTD·Filed 1998·Granted Feb 9, 1999·3 cites·3 claims
- 2933US5719030AMonoclonal 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
- 3033US4717659ANovel method for determining cholinesterase activityNITTO BOSEKI CO LTD·Filed 1985·Granted Jan 5, 1988·2 cites·7 claims
- 3133US4520100AMethod for measuring thrombinNITTO BOSEKI CO LTD·Filed 1984·Granted May 28, 1985·2 cites·1 claims
- 3233US3960829AProcess for acylation of amino, imino and hydroxyl groups using pyrimidine derivativesNITTO BOSEKI CO LTD·Filed 1974·Granted Jun 1, 1976·2 cites·7 claims
- 3331US5116941APeptide substrates for determination of enzyme activityNITTO BOSEKI CO LTD·Filed 1989·Granted May 26, 1992·1 cites·5 claims
- 3431US4861713ANovel method for determining cholinesterase activityNITTO BOSEKI CO LTD·Filed 1987·Granted Aug 29, 1989·1 cites·6 claims
- 3530US5227291AMethod 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
- 3629US5151372AMethod for determination of hydroxyacetophenone derivativesNITTO BOSEKI CO LTD·Filed 1990·Granted Sep 29, 1992·0 cites·6 claims
- 3729US5115099ASubstrates 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
- 3829US4529709AMethod for determination of 5-aminosalicylic acidNITTO BOSEKI CO LTD·Filed 1983·Granted Jul 16, 1985·4 cites·1 claims
- 3928US4894438ASynthetic 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 →