Assignee
NITTO CHEMICAL INDUSTRY CO LTD
169 granted patents·3,045 citations·filing 1971–1998
Top patents by PatentIndex Score
169 records- 0195US4337215AProcess for purifying 2-acrylamido-2-methylpropanesulfonic acidNITTO CHEMICAL INDUSTRY CO LTD·Filed 1979·Granted Jun 29, 1982·60 cites·8 claims
- 0294US3988359ACatalyst for use in and process for preparing acrylonitrileNITTO CHEMICAL INDUSTRY CO LTD·Filed 1975·Granted Oct 26, 1976·38 cites·10 claims
- 0392US5756306AProcess for producing a-hydroxy acid or a-hydroxyamide by microorganismNITTO CHEMICAL INDUSTRY CO LTD·Filed 1996·Granted May 26, 1998·84 cites·15 claims
- 0492US4582936AProcess for producing dimethylamine in preference to mono- and trimethylamines by gas phase catalytic reaction of ammonia with methanolNITTO CHEMICAL INDUSTRY CO LTD·Filed 1984·Granted Apr 15, 1986·80 cites·8 claims
- 0591US5296373AProcess for producing R(-)-mandelic acid or a derivative thereof from a mandelonitrile using rhodococcusNITTO CHEMICAL INDUSTRY CO LTD·Filed 1992·Granted Mar 22, 1994·53 cites·5 claims
- 0691US5094990AIron-antimony-phosphorus-containing metal oxide catalyst for oxidationNITTO CHEMICAL INDUSTRY CO LTD·Filed 1990·Granted Mar 10, 1992·47 cites·10 claims
- 0791US5059573AProcess for producing molybdenum-containing metal oxide fluid-bed catalystNITTO CHEMICAL INDUSTRY CO LTD·Filed 1990·Granted Oct 22, 1991·37 cites·8 claims
- 0890US5612303ASolvent compositionNITTO CHEMICAL INDUSTRY CO LTD·Filed 1995·Granted Mar 18, 1997·93 cites·26 claims
- 0990US5326702ABiological process for producing α-hydroxyamide or α-hydroxy acidNITTO CHEMICAL INDUSTRY CO LTD·Filed 1991·Granted Jul 5, 1994·59 cites·9 claims
- 1090US5132269AIron-antimony-molybdenum-containing oxide catalyst composition and process for preparing the sameNITTO CHEMICAL INDUSTRY CO LTD·Filed 1991·Granted Jul 21, 1992·81 cites·12 claims
- 1189US5679817AAlkylenediamine-N,N'-disuccinic acid iron (III) complex salts and process for production thereofNITTO CHEMICAL INDUSTRY CO LTD·Filed 1995·Granted Oct 21, 1997·21 cites·8 claims
- 1289US5508181AProcess for producing alpha-hydroxy acid or alpha-hydroxyamide by microorganismsNITTO CHEMICAL INDUSTRY CO LTD·Filed 1995·Granted Apr 16, 1996·50 cites·4 claims
- 1389US4343900AProcess for the production of acrylamide using microorganismNITTO CHEMICAL INDUSTRY CO LTD·Filed 1980·Granted Aug 10, 1982·39 cites·14 claims
- 1488US4248968AProcess for producing acrylamide or methacrylamide utilizing microorganismsNITTO CHEMICAL INDUSTRY CO LTD·Filed 1979·Granted Feb 3, 1981·51 cites·18 claims
- 1587US4311611AProcess for regenerating an antimony containing oxide catalystNITTO CHEMICAL INDUSTRY CO LTD·Filed 1979·Granted Jan 19, 1982·38 cites·10 claims
- 1686US5589108ASoluble alkoxy-group substituted aminobenzenesulfonic acid aniline conducting polymersNITTO CHEMICAL INDUSTRY CO LTD·Filed 1994·Granted Dec 31, 1996·46 cites·14 claims
- 1786US4908313AProcess for producing amides by use of microoganismsNITTO CHEMICAL INDUSTRY CO LTD·Filed 1987·Granted Mar 13, 1990·32 cites·11 claims
- 1885US5334519AProcess for biological production of amides with R. rhodochrous J-1NITTO CHEMICAL INDUSTRY CO LTD·Filed 1991·Granted Aug 2, 1994·52 cites·9 claims
- 1985US5234826ABiological process for preparing optically active lactic acidNITTO CHEMICAL INDUSTRY CO LTD·Filed 1991·Granted Aug 10, 1993·48 cites·5 claims
- 2084US4683128AProcess for manufacturing high purity silicaNITTO CHEMICAL INDUSTRY CO LTD·Filed 1986·Granted Jul 28, 1987·36 cites·27 claims
- 2184US4330429AProcess for regenerating an antimony containing oxide catalystNITTO CHEMICAL INDUSTRY CO LTD·Filed 1980·Granted May 18, 1982·32 cites·4 claims
- 2283US5210031AProcess for the production of R(-)-4-halo-3-hydroxybutyronitrileNITTO CHEMICAL INDUSTRY CO LTD·Filed 1992·Granted May 11, 1993·26 cites·3 claims
- 2383US4518261AEquipment for dissolving polyacrylamide powder for obtaining an aqueous solution thereof for enhanced oil recoveryNITTO CHEMICAL INDUSTRY CO LTD·Filed 1983·Granted May 21, 1985·52 cites·1 claims
- 2482US5137854AProcess for the production of modified H-mordenite, catalyst comprising said H-mordenite and process for the synthesis of methylamine with the use of the sameNITTO CHEMICAL INDUSTRY CO LTD·Filed 1990·Granted Aug 11, 1992·67 cites·3 claims
- 2582US4853198AProcess for producing unsintered cristobalite silicaNITTO CHEMICAL INDUSTRY CO LTD·Filed 1988·Granted Aug 1, 1989·32 cites·9 claims
- 2682US4374758APreparation of stable tellurium-containing solution from metallic tellurium and process for producing tellurium-antimony containing oxide catalyst using said solutionNITTO CHEMICAL INDUSTRY CO LTD·Filed 1981·Granted Feb 22, 1983·27 cites·27 claims
- 2782US4208303AProcess for regenerating iron-antimony oxide containing catalystNITTO CHEMICAL INDUSTRY CO LTD·Filed 1978·Granted Jun 17, 1980·32 cites·6 claims
- 2882US4046582AAir-entraining water-reducing agents for cement compositionNITTO CHEMICAL INDUSTRY CO LTD·Filed 1976·Granted Sep 6, 1977·40 cites·7 claims
- 2981US5731176ADNA fragment encoding a polypeptide having nitrile hydratase activity, a transformant containing the gene and a process for the production of amides using the transformantNITTO CHEMICAL INDUSTRY CO LTD·Filed 1993·Granted Mar 24, 1998·24 cites·14 claims
- 3081US5223416AProcess for producing r(-)-mandelic acid and derivatives thereofNITTO CHEMICAL INDUSTRY CO LTD·Filed 1991·Granted Jun 29, 1993·53 cites·10 claims
- 3181US4943528AProcess for the production of optically active (R)-(-)-3-halo-1,2-propanediolNITTO CHEMICAL INDUSTRY CO LTD·Filed 1989·Granted Jul 24, 1990·19 cites·2 claims
- 3279US5776771AKanamycin resistance gene derived from microorganisms of the genus rhodococcusNITTO CHEMICAL INDUSTRY CO LTD·Filed 1995·Granted Jul 7, 1998·33 cites·12 claims
- 3379US4049575AProcess of producing antimony-containing oxide catalystsNITTO CHEMICAL INDUSTRY CO LTD·Filed 1975·Granted Sep 20, 1977·27 cites·22 claims
- 3478US4590173AProcess for producing antimony-containing oxide catalyst supported on silica for use in fluidized bed reactionNITTO CHEMICAL INDUSTRY CO LTD·Filed 1985·Granted May 20, 1986·28 cites·8 claims
- 3578US4485261AProcess for producing methylaminesNITTO CHEMICAL INDUSTRY CO LTD·Filed 1982·Granted Nov 27, 1984·17 cites·10 claims
- 3677US5318908AMethod for cultivation of nitrile hydratase-producing pseudomonasNITTO CHEMICAL INDUSTRY CO LTD·Filed 1991·Granted Jun 7, 1994·26 cites·5 claims
- 3777US4411799AMethod for stabilizing an aqueous solution containing a chlorine-based oxidantNITTO CHEMICAL INDUSTRY CO LTD·Filed 1982·Granted Oct 25, 1983·27 cites·10 claims
- 3877US4134871AMethod for reducing the adhesiveness of hydrogel-like polymer by adding polyethylene glycolNITTO CHEMICAL INDUSTRY CO LTD·Filed 1977·Granted Jan 16, 1979·20 cites·13 claims
- 3977US4083804ACatalyst for use in and process for preparing acrylonitrileNITTO CHEMICAL INDUSTRY CO LTD·Filed 1976·Granted Apr 11, 1978·24 cites·4 claims
- 4076US4410450AProcess for producing fluid catalyst having good activity from coarse catalystNITTO CHEMICAL INDUSTRY CO LTD·Filed 1981·Granted Oct 18, 1983·27 cites·17 claims
- 4175US5872000ANitrilase geneNITTO CHEMICAL INDUSTRY CO LTD·Filed 1996·Granted Feb 16, 1999·35 cites·14 claims
- 4275US4618593AProcess for improving activity of tellurium containing metal oxide catalystsNITTO CHEMICAL INDUSTRY CO LTD·Filed 1982·Granted Oct 21, 1986·21 cites·19 claims
- 4375US4321411AProcess for producing N-substituted acrylamide or methacrylamideNITTO CHEMICAL INDUSTRY CO LTD·Filed 1981·Granted Mar 23, 1982·11 cites·11 claims
- 4475US4306045AProcess for producing acrylamide polymersNITTO CHEMICAL INDUSTRY CO LTD·Filed 1980·Granted Dec 15, 1981·22 cites·10 claims
- 4573US4107085AProcess for production of attrition resistant antimony oxide containing fluidized bed catalyst having controlled particle size distributionNITTO CHEMICAL INDUSTRY CO LTD·Filed 1977·Granted Aug 15, 1978·20 cites·18 claims
- 4672US5543566AProcess for preparing amino-polycarboxylic acids or salts thereofNITTO CHEMICAL INDUSTRY CO LTD·Filed 1994·Granted Aug 6, 1996·13 cites·13 claims
- 4772US5141366AMethod of improving ground and apparatus used thereforNITTO CHEMICAL INDUSTRY CO LTD·Filed 1990·Granted Aug 25, 1992·34 cites·9 claims
- 4872US4709071AProcess for improving activity of tellurium containing metal oxide catalystsNITTO CHEMICAL INDUSTRY CO LTD·Filed 1986·Granted Nov 24, 1987·21 cites·17 claims
- 4972US4317759AStabilized aqueous solutions of acrylamide polymersNITTO CHEMICAL INDUSTRY CO LTD·Filed 1981·Granted Mar 2, 1982·19 cites·3 claims
- 5071US5155030AProcess for preparing optically active (R)-(-)-3-halo-1,2-propanediol from an epihalohydrin by a strain of corynebacterium or microbacteriumNITTO CHEMICAL INDUSTRY CO LTD·Filed 1990·Granted Oct 13, 1992·12 cites·4 claims
Showing the top 50 of 169 patent records by PatentIndex Score.
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