Ryuichi Mita
25Patents
3h-index
37Co-inventors
59Inventor score
Filing activity: Apr 4, 1979 → Jun 25, 1992
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4675439A | Preparation process of N-acylphenylalanines | Chemistry; Metallurgy | 6 | Expired |
| US4745210A | Preparation process of N-formyl-.alpha.-aspartyl phenylalanine | Chemistry; Metallurgy | 5 | Expired |
| US4342700A | Oxidation-reduction reagents for a wet desulfurization process and a process for preparing same | Chemistry; Metallurgy | 3 | Expired |
| US4304933A | Production of DL-serine | Chemistry; Metallurgy | 3 | Expired |
| US4801732A | Preparation process of .alpha.-L-aspartyl-L-phenylalanine methyl ester | Chemistry; Metallurgy | 3 | Expired |
| US4612388A | Process for producing N-acylphenylalanines | Chemistry; Metallurgy | 3 | Expired |
| US4780561A | Preparation process of .alpha.-L-aspartyl-L-phenylalanine methyl ester or hydrochloride thereof | Emerging Cross-Sectional Technologies | 3 | Expired |
| US4276187A | Oxidation-reduction reagents for a wet desulfurization process and a process for preparing same | Chemistry; Metallurgy | 3 | Expired |
| US5105021A | Preparation of a difluorohalomethoxybenzene | Chemistry; Metallurgy | 2 | Expired |
| US4962222A | Preparation process of .alpha.-l-aspartyl-l-phenylalanine methyl ester having low hygroscopicity | Chemistry; Metallurgy | 2 | Expired |
| US5221769A | Production of p-acetylaminophenol from p-aminophenyl acetate | Chemistry; Metallurgy | 2 | Expired |
| US4350643A | Process for producing 2,3-dihalopropionitrile | Chemistry; Metallurgy | 2 | Expired |
| US4778916A | Preparation process of .alpha.-L-aspartyl-L-phenylalanine methyl ester or hydrochloride thereof | Emerging Cross-Sectional Technologies | 2 | Expired |
| US4605759A | Process for production of .beta.-phenylserine | Chemistry; Metallurgy | 2 | Expired |
| US4918216A | Preparation process of .alpha.-l-aspartyl-l-phenyl-alanine methyl ester or hydrohalide thereof | Chemistry; Metallurgy | 1 | Expired |
| US5202329A | Pyrimidinyloxy(thio)quinoline derivative, and agri-horticultural fungicide comprising the derivative as active ingredient | Chemistry; Metallurgy | 1 | Expired |
| US4897506A | Isolation of alpha-l-aspartyl-l-phenylalanine methyl ester from aqueous medium | Chemistry; Metallurgy | 1 | Expired |
| US4393000A | Cyclization process for producing aziridine-2-carboxylic acid or its salts | Chemistry; Metallurgy | 1 | Expired |
| US5208400A | Process for producing allyl bromides | Chemistry; Metallurgy | 0 | Expired |
| US4338259A | Alpha-halogeno-beta-aminopropionitriles or the mineral acid salts thereof, and processes for production thereof | Chemistry; Metallurgy | 0 | Expired |
| US5220081A | Process for preventing consolidation of p-dichlorobenzene | Chemistry; Metallurgy | 0 | Expired |
| US5104491A | Method for purifying pentachloronitrobenzene by solid base treatment | Emerging Cross-Sectional Technologies | 0 | Expired |
| US5144083A | Process for producing p-hydroxyneophyl m-phenoxybenzyl ether | Chemistry; Metallurgy | 0 | Expired |
| US4453008A | Production process of DL-cystein | Chemistry; Metallurgy | 0 | Expired |
| US4484003A | Preparation process of .beta.-chloroalanine | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.