Masao Miwa
18Patents
8h-index
20Co-inventors
72Inventor score
Filing activity: Aug 31, 1992 → Jan 31, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5842527A | Hammer drill with a mode change-over mechanism | Performing Operations; Transporting | 110 | Expired |
| US5320177A | Power driven hammer drill | Performing Operations; Transporting | 39 | Expired |
| USD343105S | Electric hammer drill | General | 32 | Expired |
| US8196674B2 | Impact tool | Emerging Cross-Sectional Technologies | 19 | Active |
| USD921964S1 | Light fixture | General | 16 | Active |
| US9296079B2 | Dust collecting device | Emerging Cross-Sectional Technologies | 16 | Active |
| US8413742B2 | Impact tool | Performing Operations; Transporting | 13 | Active |
| US8037947B2 | Impact tool with shock absorbing element | Performing Operations; Transporting | 10 | Active |
| US11148272B2 | Power tool | Performing Operations; Transporting | 6 | Active |
| US11112099B2 | Portable lighting apparatus | Mechanical Engineering; Lighting; Heating | 5 | Active |
| US9440344B2 | Dust collecting device and impact tool | Emerging Cross-Sectional Technologies | 4 | Active |
| US8348286B2 | Power tool carriers | Performing Operations; Transporting | 3 | Active |
| US9302363B2 | Dust collecting device and impact tool | Emerging Cross-Sectional Technologies | 2 | Active |
| US12090617B2 | Power tool | Performing Operations; Transporting | 0 | Active |
| US9802306B2 | Impact tool | Performing Operations; Transporting | 0 | Active |
| US11597068B2 | Power tool | Performing Operations; Transporting | 0 | Active |
| US10315300B2 | Dust collecting device and impact tool | Emerging Cross-Sectional Technologies | 0 | Active |
| US8316962B2 | Impact tool | General | 0 | Revoked |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.