Ken Nishihata
14Patents
2h-index
32Co-inventors
50Inventor score
Filing activity: Mar 6, 1978 → Jul 29, 1994
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4839350A | Cephalosporin compounds and the production thereof | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4810702A | Antibacterial agent for mammal use comprising cephalosporin derivatives as an effective ingredient | Human Necessities | 2 | Expired |
| US4918068A | Cephem compounds | Human Necessities | 1 | Expired |
| US4560750A | Cephem compounds and process for preparing the same | Emerging Cross-Sectional Technologies | 1 | Expired |
| US4485235A | Process for preparing 7-.alpha.-methoxycephem compounds | Emerging Cross-Sectional Technologies | 1 | Expired |
| US4555404A | Sodium 7.beta.-(2D-2-amino-2-carboxyethylthioacetamido)-7.alpha.-methoxy-3-(1-m ethyl-1H-tetrazol-5-yl)thiomethyl-3-cephem-4-carboxylate heptahydrate and process for its preparation | Human Necessities | 1 | Expired |
| US4950660A | Beta-lactam compound and process for production thereof | Emerging Cross-Sectional Technologies | 0 | Expired |
| US5596096A | Azetidinone derivatives and method for producing azetidinone and cephalosoporin derivatives | Chemistry; Metallurgy | 0 | Expired |
| US4889926A | "Method for the synthesis of (2""R)-4'-O-tetra-hydropyranyladriamycim using 14-chloro-daunomycin as an intermediate" | Chemistry; Metallurgy | 0 | Expired |
| US4159372A | Process for preparing cephalosporin esters in the presence of liquid sulfur dioxide | Chemistry; Metallurgy | 0 | Expired |
| US4898858A | Cephalosporin derivatives and antibiotics containing the same | Human Necessities | 0 | Expired |
| US4791197A | Cephalosporin compounds | Emerging Cross-Sectional Technologies | 0 | Expired |
| US5405955A | Method for producing azetidinone and cephalosporin derivatives | Chemistry; Metallurgy | 0 | Expired |
| US4225706A | Polychalcogen ester of cephem compound, process for preparing the same and method for removing the protective group of the same | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.