Hiroshi Hamaguchi
28Patents
10h-index
45Co-inventors
75Inventor score
Filing activity: Jul 22, 1974 → Aug 6, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4843068A | Pyrazole oxime derivatives and compositions | Chemistry; Metallurgy | 37 | Expired |
| US3947106A | Illumination means for use in photocopying machine | Physics | 27 | Expired |
| US5543573A | Hydrazinecarboxyamide derivatives, a process for production thereof and uses thereof | Chemistry; Metallurgy | 19 | Expired |
| US5304573A | Hydrazone derivatives, processes for production thereof, and uses thereof | Chemistry; Metallurgy | 17 | Expired |
| US3947115A | Optical illumination device for use in copying machine | Electricity | 17 | Expired |
| US8727928B2 | Vehicle power transmission device | Mechanical Engineering; Lighting; Heating | 12 | Active |
| US8643341B2 | Battery system and automobile | Emerging Cross-Sectional Technologies | 11 | Active |
| US4174902A | Detection of developer powder amount contained in a developer reservoir | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4500479A | Humidifier | Emerging Cross-Sectional Technologies | 10 | Expired |
| US8348800B2 | Vehicle power transmission device | Emerging Cross-Sectional Technologies | 10 | Active |
| US4328771A | Starting assist system for diesel engines | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US4193376A | Developer powder supply in magnet brush development | Physics | 9 | Expired |
| US10236537B2 | Non-aqueous electrolyte secondary battery | Emerging Cross-Sectional Technologies | 9 | Active |
| US8459134B2 | Vehicle oil pump | Emerging Cross-Sectional Technologies | 7 | Active |
| US4076409A | Belt type sensitive member unit | Physics | 6 | Expired |
| US6995225B2 | Proton conduction material and method of manufacturing the same | Emerging Cross-Sectional Technologies | 5 | Expired |
| US8704489B2 | Battery system, vehicle, and battery mounted device | Emerging Cross-Sectional Technologies | 5 | Active |
| US3958879A | Belt type sensitive member unit | Physics | 4 | Expired |
| US5358965A | Hydrazone derivatives, processes for production thereof, and uses thereof | Chemistry; Metallurgy | 3 | Expired |
| US4863504A | Cyclohexadione derivatives, selective herbicidal compositions as well as herbicidal method | Human Necessities | 3 | Expired |
| US3960306A | Driving mechanism for endless sensitive member | Emerging Cross-Sectional Technologies | 2 | Expired |
| US11009556B2 | Method of estimating deteriorated state of secondary battery and secondary battery system | Emerging Cross-Sectional Technologies | 1 | Active |
| US8507117B2 | Lithium ion secondary battery, assembled battery, vehicle, battery-equipped device, battery system, and method for detecting deterioration of lithium ion secondary battery | Emerging Cross-Sectional Technologies | 1 | Active |
| US11193983B2 | Method of estimating deterioration state of secondary battery and secondary battery system | Emerging Cross-Sectional Technologies | 0 | Active |
| US9261565B2 | Method of testing secondary battery | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.