Masaji Ishiguro
14Patents
3h-index
20Co-inventors
60Inventor score
Filing activity: Oct 13, 1989 → Dec 3, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5830889A | Antibacterial penem esters derivatives | Human Necessities | 12 | Expired |
| US4997829A | Penem compounds, and use thereof | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5703068A | Penem compounds | Human Necessities | 4 | Expired |
| US5506225A | Antibacterial penem compounds | Human Necessities | 3 | Expired |
| US5116832A | Penem derivatives production and use thereof | Emerging Cross-Sectional Technologies | 3 | Expired |
| US5026844A | Process for the preparation of 4-acyloxy-2-azetidinone derivatives | Chemistry; Metallurgy | 3 | Expired |
| US5821362A | Method of desilylating silylether compounds | Emerging Cross-Sectional Technologies | 2 | Expired |
| US6867297B1 | Process for synthesizing 4-substituted azetidinone derivatives | Chemistry; Metallurgy | 2 | Expired |
| US9069700B2 | Structural model of G protein-coupled receptor and method for designing ligand capable of binding to G protein-coupled receptor using the structural model | Chemistry; Metallurgy | 1 | Active |
| US5885981A | Antibacterial penem esters derivatives | Human Necessities | 1 | Expired |
| US6051569A | 1'S, 5R, 6R-carbapenem derivatives and antimicrobial agents comprising the same | Emerging Cross-Sectional Technologies | 1 | Expired |
| US4985575A | Process for preparing optically active tetrahydro-2-furoic acid | Chemistry; Metallurgy | 0 | Expired |
| US6049009A | Production method of optically active trans-vinylsulfide alcohol | Chemistry; Metallurgy | 0 | Expired |
| US8318781B2 | G-protein-conjugated receptor agonist | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.