Toshiro Hirayama
9Patents
4h-index
20Co-inventors
57Inventor score
Filing activity: Sep 14, 1999 → Dec 28, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6176321A | Power-driven hammer drill having an improved operating mode switch-over mechanism | Performing Operations; Transporting | 68 | Expired |
| USD466779S1 | Portable electric drill | General | 48 | Expired |
| US8579043B2 | Battery-powered power tools | Performing Operations; Transporting | 11 | Active |
| US7410009B2 | Power tool | Performing Operations; Transporting | 10 | Active |
| US12044227B2 | Air compressor | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US12023790B2 | Driving tool | Performing Operations; Transporting | 0 | Active |
| US11543554B2 | Embedded-object scanner device | Physics | 0 | Active |
| US12025764B2 | Embedded-object scanner device | Physics | 0 | Active |
| US11981005B2 | Driving tool | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.