Takuya Sunagawa
8Patents
4h-index
21Co-inventors
49Inventor score
Filing activity: Apr 14, 1998 → Sep 22, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6040090A | Positive electrode material for use in non-aqueous electrolyte battery, process for preparing the same, and non-aqueous electrolyte battery | Emerging Cross-Sectional Technologies | 68 | Expired |
| US6333128A | Lithium secondary battery | Emerging Cross-Sectional Technologies | 55 | Expired |
| US6746800B1 | Nonaqueous electrolyte secondary battery | Emerging Cross-Sectional Technologies | 24 | Expired |
| US6818351B2 | Mixed cathode active material for lithium secondary battery | Emerging Cross-Sectional Technologies | 21 | Expired |
| US7682744B2 | Lithium secondary battery | Emerging Cross-Sectional Technologies | 4 | Active |
| US6677081B2 | Positive electrode active material for non-aqueous electrolyte secondary battery | Emerging Cross-Sectional Technologies | 4 | Expired |
| US7695855B2 | Electrode for lithium secondary battery and lithium secondary battery | Emerging Cross-Sectional Technologies | 1 | Expired |
| US6716556B2 | Nonaqueous electrolyte rechargeable battery | Emerging Cross-Sectional Technologies | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.