Hideki Hayama
8Patents
4h-index
27Co-inventors
57Inventor score
Filing activity: Feb 27, 1979 → Nov 19, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6225778A | Battery pack | Emerging Cross-Sectional Technologies | 124 | Expired |
| US6168648A | Spiral wound type membrane module, spiral wound type membrane element and running method thereof | Performing Operations; Transporting | 42 | Expired |
| US6085071A | Antenna duplexer | Electricity | 28 | Expired |
| US4207385A | Closed type alkaline storage battery | Emerging Cross-Sectional Technologies | 13 | Expired |
| US10516315B2 | Drive device and ventilation member | Emerging Cross-Sectional Technologies | 1 | Active |
| US10386059B2 | Dehumidifying device and lamp | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US9587877B2 | Organic electroluminescent device having a photocatalyst layer | Electricity | 1 | Active |
| US8180414B2 | Portable radio device | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.