Hitoshi Ohki
16Patents
5h-index
34Co-inventors
66Inventor score
Filing activity: Aug 4, 1997 → Nov 22, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6184388A | Substituted aminocycloalkylpyrrolidine derivatives and cis-substituted aminocycloalkylpyrrolidine derivatives | Chemistry; Metallurgy | 18 | Expired |
| US6121285A | Substituted aminocycloalkylpyrrolidine derivatives and cis-substituted aminocycloalkylpyrrolidine derivatives | Chemistry; Metallurgy | 16 | Expired |
| US6169086A | Pyrazole derivatives | Chemistry; Metallurgy | 13 | Expired |
| US6384050B1 | Tricyclic amine derivatives | Chemistry; Metallurgy | 7 | Expired |
| US5849757A | Pyridonecarboxylic acid derivatives substituted by a bicyclic amino group as antibacterials | Human Necessities | 7 | Expired |
| US6656952B2 | Cis-substituted fluoromethylpyrrolidine derivative | Human Necessities | 5 | Expired |
| US6194434A | Cycloalkylaminomethylpyrrolidine derivatives | Human Necessities | 4 | Expired |
| US8933103B2 | Pyridone derivatives | Chemistry; Metallurgy | 4 | Active |
| US8236813B2 | Tricyclic pyrazolopyrimidine derivatives | Chemistry; Metallurgy | 2 | Active |
| US6469023B1 | Heterocyclic spiro-derivative | Human Necessities | 1 | Expired |
| US6573377B1 | Pyrazole derivatives and salts thereof | Chemistry; Metallurgy | 1 | Expired |
| US6552018B1 | Pyrazole derivatives | Chemistry; Metallurgy | 1 | Expired |
| US8445504B2 | Tricyclic pyrazolopyrimidine derivatives | Chemistry; Metallurgy | 0 | Active |
| US10774087B2 | Sulfonamide derivative having coumarin skeleton | Human Necessities | 0 | Active |
| US6586604B2 | Tricyclic amine derivatives | Chemistry; Metallurgy | 0 | Expired |
| US8846703B2 | Crystal of a free tricyclic pyrazolopyrimidine derivative | Human Necessities | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.