Hitoshi Arai
13Patents
3h-index
51Co-inventors
63Inventor score
Filing activity: May 26, 1989 → Jun 2, 2008
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7524852B2 | Bicyclic pyrimidine derivatives | Chemistry; Metallurgy | 45 | Expired |
| US7956060B2 | Pyrimidine derivative compound | Chemistry; Metallurgy | 37 | Active |
| US5068349A | Mitomycin derivatives | Human Necessities | 5 | Expired |
| US7998954B2 | Pyrimidodiazepinone derivative | Human Necessities | 3 | Active |
| US8507484B2 | Preventive and/or therapeutic agent for neutrophilic inflammatory diseases | Human Necessities | 2 | Active |
| US5334611A | 6-ethyl mitomycin derivatives | Chemistry; Metallurgy | 2 | Expired |
| US5256685A | Mitomycin derivatives | Chemistry; Metallurgy | 2 | Expired |
| US5180825A | Mitomycin derivatives | Chemistry; Metallurgy | 1 | Expired |
| US5344938A | Indole 3-carboxylic acid derivatives | Human Necessities | 0 | Expired |
| US5981558A | DC107 derivatives | Chemistry; Metallurgy | 0 | Expired |
| US5218126A | Halogen substituted mitomycin derivatives | Chemistry; Metallurgy | 0 | Expired |
| US5021423A | Mitomycin derivatives and intermediates therefor | Human Necessities | 0 | Expired |
| US6080771A | DC107 derivatives | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.