Assignee
NIKKEN CHEMICALS CO LTD
JP·38 granted patents·1 pending application·588 citations·filing 1973–2008
Top patents by PatentIndex Score
39 records- 0185US6184238B1N-hydroxyurea derivative and pharmaceutical composition containing the sameNIKKEN CHEMICALS CO LTD·Filed 1997·Granted Feb 6, 2001·58 cites·16 claims
- 0282US5843950A1,4-dihydropyridine compound and pharmaceutical composition containing the sameNIKKEN CHEMICALS CO LTD·Filed 1995·Granted Dec 1, 1998·42 cites·9 claims
- 0381US7772258B2Agent for treatment of allergic eye diseaseNIKKEN CHEMICALS CO LTD·Filed 2008·Granted Aug 10, 2010·7 cites·3 claims
- 0478US6235736B13-anilino-2-cycloalkenone derivativesNIKKEN CHEMICALS CO LTD·Filed 1997·Granted May 22, 2001·31 cites·12 claims
- 0577US6426091B1Sustained-release theophylline tabletNIKKEN CHEMICALS CO LTD·Filed 1998·Granted Jul 30, 2002·45 cites·13 claims
- 0677US6180094B1Remedies for hyperphosphatemiaNIKKEN CHEMICALS CO LTD·Filed 1997·Granted Jan 30, 2001·45 cites·18 claims
- 0776US4692337ASustained release pharmaceutical tablet of theophylline and production process thereofNIKKEN CHEMICALS CO LTD·Filed 1984·Granted Sep 8, 1987·43 cites·2 claims
- 0874US6369251B1Method for purification of polyprenyl compoundsNIKKEN CHEMICALS CO LTD·Filed 2000·Granted Apr 9, 2002·10 cites·7 claims
- 0973US4261970ATheophylline sustained release granuleNIKKEN CHEMICALS CO LTD·Filed 1980·Granted Apr 14, 1981·37 cites·4 claims
- 1072US6984742B2Method for preparing polyprenyl compoundsNIKKEN CHEMICALS CO LTD·Filed 2004·Granted Jan 10, 2006·10 cites·14 claims
- 1172US6280717B1Cation exchange resin preparationNIKKEN CHEMICALS CO LTD·Filed 1999·Granted Aug 28, 2001·53 cites·11 claims
- 1272US6251897B16-phenyltetrahydro-1,3-oxazin-2-one derivative and pharmaceutical composition containing the sameNIKKEN CHEMICALS CO LTD·Filed 1997·Granted Jun 26, 2001·39 cites·20 claims
- 1370US4985558A1,4-dihydropyridine derivativeNIKKEN CHEMICALS CO LTD·Filed 1989·Granted Jan 15, 1991·10 cites·6 claims
- 1467US6187336B1Process for producing a solid which is rapidly soluble in the oral cavityNIKKEN CHEMICALS CO LTD·Filed 1998·Granted Feb 13, 2001·40 cites·25 claims
- 1561US6433173B1Process for the preparation of ipidacrine or ipidacrine hydrochloride hydrateNIKKEN CHEMICALS CO LTD·Filed 2000·Granted Aug 13, 2002·5 cites·8 claims
- 1661US6433167B1Triazolo-1,4-diazepine compounds and medicinal composition containing the sameNIKKEN CHEMICALS CO LTD·Filed 1998·Granted Aug 13, 2002·11 cites·5 claims
- 1760US5919799AImidazothiazole compoundNIKKEN CHEMICALS CO LTD·Filed 1996·Granted Jul 6, 1999·10 cites·18 claims
- 1859US4121037AProcess for producing 5-fluorouracil derivative with a calcium chloride catalystNIKKEN CHEMICALS CO LTD·Filed 1977·Granted Oct 17, 1978·4 cites·14 claims
- 1956US5589191ASlow-release sodium valproate tabletsNIKKEN CHEMICALS CO LTD·Filed 1995·Granted Dec 31, 1996·22 cites·5 claims
- 2055US2009069424A1TGF-alpha expression inhibitorsNIKKEN CHEMICALS CO LTD·Filed 2008·Application pending·0 cites
- 2152US4495356A1,4-Dihydropyridine compoundNIKKEN CHEMICALS CO LTD·Filed 1983·Granted Jan 22, 1985·4 cites·3 claims
- 2251US6703527B2Method for oxidation of allyl alcoholNIKKEN CHEMICALS CO LTD·Filed 2002·Granted Mar 9, 2004·2 cites·11 claims
- 2350US6489469B1Method for storing or transporting erythritol solutionNIKKEN CHEMICALS CO LTD·Filed 2000·Granted Dec 3, 2002·1 cites·12 claims
- 2450US6265402B1Use of 2-phenylmorpholin-5-one derivativesNIKKEN CHEMICALS CO LTD·Filed 1997·Granted Jul 24, 2001·5 cites·14 claims
- 2548US5736185AMethod for suppressing grassy smell and acid taste of vegetables and fruitNIKKEN CHEMICALS CO LTD·Filed 1996·Granted Apr 7, 1998·15 cites·12 claims
- 2645US7314643B2Soft capsule preparationNIKKEN CHEMICALS CO LTD·Filed 2003·Granted Jan 1, 2008·1 cites·6 claims
- 2743US6943195B2Cycloalkenone derivativeNIKKEN CHEMICALS CO LTD·Filed 2002·Granted Sep 13, 2005·0 cites·11 claims
- 2842US6110715AMethod for producing erythritol using a microorganismNIKKEN CHEMICALS CO LTD·Filed 1997·Granted Aug 29, 2000·4 cites·19 claims
- 2941US6245820B1Method for treating Meniere's diseaseNIKKEN CHEMICALS CO LTD·Filed 1998·Granted Jun 12, 2001·6 cites·6 claims
- 3041US6074857AMethod of producing erythritolNIKKEN CHEMICALS CO LTD·Filed 1999·Granted Jun 13, 2000·5 cites·3 claims
- 3141US3966720AProcess for producing desacetoxy cephalosporanic acid compoundNIKKEN CHEMICALS CO LTD·Filed 1973·Granted Jun 29, 1976·3 cites·14 claims
- 3239US6106863ASustained-release metal valproate tabletsNIKKEN CHEMICALS CO LTD·Filed 1997·Granted Aug 22, 2000·8 cites·9 claims
- 3338US6235739B15-phenyl-3-pyridazinone derivatives and drug composition containing the sameNIKKEN CHEMICALS CO LTD·Filed 1997·Granted May 22, 2001·4 cites·7 claims
- 3437US5869088ATransdermal administration preparation of a 9-aminocyclopenta (b) quinolineNIKKEN CHEMICALS CO LTD·Filed 1995·Granted Feb 9, 1999·5 cites·12 claims
- 3533US6291482B1N-hydroxyurea derivative and pharmaceutical composition containing the sameNIKKEN CHEMICALS CO LTD·Filed 1998·Granted Sep 18, 2001·2 cites·6 claims
- 3630US4968708AImidazo[2,1-B]benzothiazole compounds and antiulcer compositions containing the sameNIKKEN CHEMICALS CO LTD·Filed 1989·Granted Nov 6, 1990·1 cites·13 claims
- 3725US6214605B1Microorganism and a process for producing polyols by using the sameNIKKEN CHEMICALS CO LTD·Filed 1998·Granted Apr 10, 2001·0 cites·22 claims
- 3823US5916797AMutant strain of Trichosporonoides oedocephalisNIKKEN CHEMICALS CO LTD·Filed 1997·Granted Jun 29, 1999·0 cites·2 claims
- 3921US6306853B11,4-Dihydropyridine derivativesNIKKEN CHEMICALS CO LTD·Filed 1999·Granted Oct 23, 2001·0 cites·10 claims
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