Hidenori Nagasaka
59Patents
14h-index
55Co-inventors
87Inventor score
Filing activity: Dec 27, 2001 → Jan 10, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7131503B2 | Impact driver having a percussion application mechanism which operation mode can be selectively switched between percussion and non-percussion modes | Performing Operations; Transporting | 57 | Expired |
| USD525099S1 | Portable electric driver | General | 50 | Expired |
| USD606376S1 | Portable electric driver | General | 38 | Expired |
| US6725945B2 | Impact tool with improved operability | Performing Operations; Transporting | 36 | Expired |
| US8069929B2 | Impact tool | Performing Operations; Transporting | 32 | Active |
| US8443913B2 | Hook for electric power tool and rechargeable electric power tool equipped with the hook | Emerging Cross-Sectional Technologies | 29 | Active |
| US9643300B2 | Impact tool | Performing Operations; Transporting | 28 | Active |
| US8371708B2 | Electric power tool | Performing Operations; Transporting | 28 | Active |
| US7918286B2 | Impact tool | Performing Operations; Transporting | 27 | Active |
| USD505055S1 | Portable electric impact driver | General | 23 | Expired |
| USD514910S1 | Portable electric driver | General | 22 | Expired |
| US8573322B2 | Hook for electric power tools and electric power tool equipped with the hook | Performing Operations; Transporting | 21 | Active |
| USD554461S1 | Portable electric driver | General | 20 | Expired |
| US9364906B2 | Power tool with high-speed electric motor | Performing Operations; Transporting | 15 | Active |
| US8827003B2 | Impact tool | Performing Operations; Transporting | 13 | Active |
| USD528888S1 | Portion of a portable electric driver | General | 13 | Expired |
| US8757286B2 | Impact tool | Performing Operations; Transporting | 12 | Active |
| US8607893B2 | Impact tool with a protecting cover | Performing Operations; Transporting | 11 | Active |
| US8671508B2 | Dust collector | Human Necessities | 8 | Active |
| US9016397B2 | Electric power tool suspending attachment and electric power tool equipped with the same | Performing Operations; Transporting | 8 | Active |
| US8698430B2 | Variable speed switch and electric power tool with the variable speed switch mounted thereto | Electricity | 7 | Active |
| US8952581B2 | Electric tools | Electricity | 7 | Active |
| US10478950B2 | Power tool | Electricity | 7 | Active |
| US10213907B2 | Impact tool | Performing Operations; Transporting | 6 | Active |
| USD587543S1 | Portable electric driver | General | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.