Hiroshi Sumida
4Patents
3h-index
10Co-inventors
43Inventor score
Filing activity: Mar 30, 1995 → Jan 3, 2001
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5523073A | Manganese dioxide for lithium primary battery and method of producing the same | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5866278A | Electrolytic manganese dioxide, process for preparing the same, and manganese dry cell | Electricity | 5 | Expired |
| US6821678B2 | Process of producing manganese dioxide for a lithium primary battery | Emerging Cross-Sectional Technologies | 5 | Expired |
| US5972074A | Method for reducing impurities in misch metal and alloys | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.