Kenzo Yokozeki
74Patents
10h-index
73Co-inventors
81Inventor score
Filing activity: Oct 15, 1975 → Dec 13, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7316916B2 | DNA for encoding D-hydantoin hydrolases, DNA for encoding N-carbamyl-D-amino acid hydrolases, recombinant DNA containing the genes, cells transformed with the recombinant DNA, methods for producing proteins utilizing the transformed cells and methods for producing D-amino acids | Chemistry; Metallurgy | 60 | Expired |
| US5731183A | Bacillus-derived transglutaminase | Emerging Cross-Sectional Technologies | 37 | Expired |
| US5149640A | Method for producing galactose transfer products | Emerging Cross-Sectional Technologies | 19 | Expired |
| US5804414A | Method of amplifying genes using artificial transposons in coryneform bacteria | Chemistry; Metallurgy | 19 | Expired |
| US5948662A | Bacillus-derived transglutaminase | Emerging Cross-Sectional Technologies | 16 | Expired |
| US4650759A | Method of producing L-carnitine | Chemistry; Metallurgy | 14 | Expired |
| US6303353A | Process for preparing xylitol | Chemistry; Metallurgy | 12 | Expired |
| US4835104A | Process for producing and purifying 2',3'-dideoxynucleosides, and process for producing 2',3'-dideoxy-2',3'-didehydronucleosides | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4211840A | Method for producing D-.alpha.-amino acid | Chemistry; Metallurgy | 11 | Expired |
| US6340582B1 | Process for preparing xylitol | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4016037A | Method for producing L-amino acid | Emerging Cross-Sectional Technologies | 9 | Expired |
| US6242228A | Xylitol dehydrogenase of acetic acid bacteria and gene thereof | Chemistry; Metallurgy | 9 | Expired |
| US6221634A | Method for producing xylitol or D-xylulose in bacteria | Chemistry; Metallurgy | 9 | Expired |
| US7288389B2 | Peptide-forming enzyme gene | Chemistry; Metallurgy | 9 | Expired |
| US7531340B2 | Peptide-forming enzyme gene | Chemistry; Metallurgy | 8 | Active |
| US6127174A | Plasmid derived from gluconobacter bacteria and vector | Chemistry; Metallurgy | 8 | Expired |
| US7115389B2 | Method for producing dipeptide | Emerging Cross-Sectional Technologies | 7 | Expired |
| US7361458B2 | Method for producing α-L-aspartyl-L-phenylalanine-β-ester and method for producing α-L-aspartyl-L-phenylalanine-α-methyl ester | Chemistry; Metallurgy | 6 | Expired |
| US7338780B2 | Method for producing tripeptides and/or peptides longer than tripeptides | Chemistry; Metallurgy | 6 | Expired |
| US6579699B1 | Method for producing fermentative product and stress-resistant microorganism | Chemistry; Metallurgy | 6 | Expired |
| US8039232B2 | Method for producing a dipeptide | Chemistry; Metallurgy | 6 | Active |
| US7736871B2 | Peptide-forming enzyme gene | Chemistry; Metallurgy | 6 | Active |
| US6335177B1 | Microorganisms and method for producing xylitol or d-xylulose | Emerging Cross-Sectional Technologies | 5 | Expired |
| US7060485B2 | DNA for encoding D-hydantoin hydrolases, DNA for encoding N-carbamyl-D-amino acid hydrolases, recombinant DNA containing the genes, cells transformed with the recombinant DNA, methods for producing proteins utilizing the transformed cells and methods for producing D-amino acids | Chemistry; Metallurgy | 4 | Expired |
| US4755466A | Process for producing L-phenylalanine | Emerging Cross-Sectional Technologies | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.