Hiroitsu Kawata
17Patents
11h-index
34Co-inventors
68Inventor score
Filing activity: Oct 21, 1974 → Aug 26, 1988
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4404183A | Sustained release pharmaceutical composition of solid medical material | Human Necessities | 187 | Expired |
| US4343789A | Sustained release pharmaceutical composition of solid medical material | Human Necessities | 162 | Expired |
| US4685911A | Patch | Human Necessities | 105 | Expired |
| US4412986A | Nifedipine-containing solid preparation composition | Human Necessities | 92 | Expired |
| US4673564A | Sustained release pharmaceutical composition of solid medical material | Human Necessities | 52 | Expired |
| US4380534A | Solid drug preparations | Human Necessities | 41 | Expired |
| US4879119A | Patch | Human Necessities | 38 | Expired |
| US4637930A | Transdermal formulation of nicardipine hydrochloride | Human Necessities | 24 | Expired |
| US4724148A | Amosulalol hydrochloride long acting formulation | Human Necessities | 22 | Expired |
| US4765988A | Amosulalol hydrochloride long acting formulations | Human Necessities | 21 | Expired |
| US4578391A | Oily compositions of antitumor drugs | Human Necessities | 20 | Expired |
| US4036954A | Stable prostaglandin E group-containing formulation | Chemistry; Metallurgy | 11 | Expired |
| US4707376A | Granular composition of difficult digestible polysaccharides | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4758437A | Composition for long acting nicardipine preparation and process of producing the composition | Human Necessities | 9 | Expired |
| US4258179A | Coating agents for solid medicaments | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4092428A | Process of preparing stable prostaglandin E group-containing formulation | Chemistry; Metallurgy | 6 | Expired |
| US4772590A | Oily composition of aclarubicin or hydrochloride thereof | Human Necessities | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.