Inventor · disambiguated record
Ryoichi Katsumata
Also filed as: KATSUMATA RYOICHI
37 granted patents·1 pending application·622 citations·filing 1974–2001
98Inventor score
Files withKYOWA HAKKO KOGYO KK37
Top patents by PatentIndex Score
38 records- 0192US4489160APlasmid pCG2KYOWA HAKKO KOGYO KK·Filed 1982·Granted Dec 18, 1984·99 cites·6 claims
- 0291US4500640APlasmidsKYOWA HAKKO KOGYO KK·Filed 1982·Granted Feb 19, 1985·36 cites·9 claims
- 0390US6207427B1Method for producing optically active compoundKYOWA HAKKO KOGYO KK·Filed 1998·Granted Mar 27, 2001·46 cites·12 claims
- 0483US5605818AProcess for producing L-tryptophan, L-tyrosine or L-phenylalanineKYOWA HAKKO KOGYO KK·Filed 1995·Granted Feb 25, 1997·30 cites·3 claims
- 0582US4908312AProcess for producing phenylananineKYOWA HAKKO KOGYO KK·Filed 1988·Granted Mar 13, 1990·20 cites·5 claims
- 0680US5559016AProcess for producing alanineKYOWA HAKKO KOGYO KK·Filed 1993·Granted Sep 24, 1996·18 cites·8 claims
- 0780US5364775AProcess for producing trans-L-hydroxyprolineKYOWA HAKKO KOGYO KK·Filed 1992·Granted Nov 15, 1994·24 cites·1 claims
- 0877US6365381B2Method for producing optically active compoundKYOWA HAKKO KOGYO KK·Filed 2001·Granted Apr 2, 2002·4 cites·12 claims
- 0976US5563052AProcess for producing L-tryptophanKYOWA HAKKO KOGYO KK·Filed 1994·Granted Oct 8, 1996·13 cites·5 claims
- 1076US4617267APlasmid pCG1 from Corynebacterium glutamicumKYOWA HAKKO KOGYO KK·Filed 1984·Granted Oct 14, 1986·30 cites·6 claims
- 1174US5236831AAmino acid synthesis in corynebacteria using E. coli genesKYOWA HAKKO KOGYO KK·Filed 1990·Granted Aug 17, 1993·47 cites·9 claims
- 1273US5700661AGene expression regulatory DNAKYOWA HAKKO KOGYO KK·Filed 1996·Granted Dec 23, 1997·26 cites·1 claims
- 1371US4954441AProcess for producing L-lysineKYOWA HAKKO KOGYO KK·Filed 1989·Granted Sep 4, 1990·29 cites·6 claims
- 1471US4927758AProcess for producing histidineKYOWA HAKKO KOGYO KK·Filed 1987·Granted May 22, 1990·14 cites·9 claims
- 1569US4681847ANovel lysozyme-sensitive microorganismKYOWA HAKKO KOGYO KK·Filed 1985·Granted Jul 21, 1987·10 cites·5 claims
- 1668US5407824ARecombinant coryneform bacterium for producing L-tryptophanKYOWA HAKKO KOGYO KK·Filed 1990·Granted Apr 18, 1995·8 cites·2 claims
- 1767US4775623AProcess for producing L-arginineKYOWA HAKKO KOGYO KK·Filed 1984·Granted Oct 4, 1988·21 cites·6 claims
- 1867US4710471ANovel vector plasmidsKYOWA HAKKO KOGYO KK·Filed 1984·Granted Dec 1, 1987·19 cites·9 claims
- 1965US6485931B2Cholesterol dehydrogenase, coprostan-3-one dehydrogenase and 4-cholesten-3-one dehydrogenase, compositions containing the dehydrogenases, and method for reducing amount of cholesterol using the compositionsKYOWA HAKKO KOGYO KK·Filed 2001·Granted Nov 26, 2002·1 cites·6 claims
- 2064US5521074AProcess for producing L-valineKYOWA HAKKO KOGYO KK·Filed 1995·Granted May 28, 1996·29 cites·1 claims
- 2164US4683205AMethod for transforming microorganismsKYOWA HAKKO KOGYO KK·Filed 1985·Granted Jul 28, 1987·8 cites·8 claims
- 2261US5643769AProcess for producing an optically active γ-hydroxy-L-glutamic acidKYOWA HAKKO KOGYO KK·Filed 1995·Granted Jul 1, 1997·8 cites·16 claims
- 2359US5017482AProcess for producing L-arginineKYOWA HAKKO KOGYO KK·Filed 1987·Granted May 21, 1991·14 cites·3 claims
- 2455US4874698AProcess for producing tryptophanKYOWA HAKKO KOGYO KK·Filed 1987·Granted Oct 17, 1989·11 cites·8 claims
- 2554US5498532AProcess for producing amino acidsKYOWA HAKKO KOGYO KK·Filed 1990·Granted Mar 12, 1996·14 cites·5 claims
- 2650US5374542AProcess for producing 4-hydroxy-L-prolineKYOWA HAKKO KOGYO KK·Filed 1991·Granted Dec 20, 1994·4 cites·3 claims
- 2750US2001034041A1Process for producing a cholesterol-reduced substanceFiled 2001·Application pending·0 cites
- 2849US5484716AProcess for producing L-tryptophan by a Corynebacterium strain having decreased phosphoenolpyruvate carboxylase activityKYOWA HAKKO KOGYO KK·Filed 1993·Granted Jan 16, 1996·10 cites·1 claims
- 2949US5447857AProcess for producing L-tryptophanKYOWA HAKKO KOGYO KK·Filed 1993·Granted Sep 5, 1995·3 cites·1 claims
- 3044US3939042AProcess for the production of L-glutamic acidKYOWA HAKKO KOGYO KK·Filed 1974·Granted Feb 17, 1976·5 cites·6 claims
- 3138US5439822AGene expression regulatory DNAKYOWA HAKKO KOGYO KK·Filed 1992·Granted Aug 8, 1995·3 cites·8 claims
- 3237US5153120AProcess for the production of γ-glutamyl transpeptidaseKYOWA HAKKO KOGYO KK·Filed 1991·Granted Oct 6, 1992·5 cites·7 claims
- 3334US6312919B1Process for producing a cholesterol-reduced substanceKYOWA HAKKO KOGYO KK·Filed 1997·Granted Nov 6, 2001·3 cites·4 claims
- 3434US5624828AProcess for producing L-tryptophan in serine auxotrophic microorganisms belonging to the genus corynebacterium or brevabacteriumKYOWA HAKKO KOGYO KK·Filed 1994·Granted Apr 29, 1997·4 cites·4 claims
- 3532US5607848AProcess for producing optically active 4-hydroxy-2-ketoglutaric acid using microorganismsKYOWA HAKKO KOGYO KK·Filed 1995·Granted Mar 4, 1997·2 cites·2 claims
- 3631US5595906ACorynebacterium strain for producing L-tryptophan decreased in phosphoenolpyruvate carboxylase activityKYOWA HAKKO KOGYO KK·Filed 1995·Granted Jan 21, 1997·1 cites·1 claims
- 3731US5478733AProcess for producing L-alanine by fermentation with arthrobacterKYOWA HAKKO KOGYO KK·Filed 1993·Granted Dec 26, 1995·1 cites·1 claims
- 3830US5595894AProcess for stably maintaining recombinant plasmids in serine auxotrophic microorganisms belonging to the genus Corynebacterium or BrevibacteriumKYOWA HAKKO KOGYO KK·Filed 1995·Granted Jan 21, 1997·2 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →