Takao Kuroyanagi
18Patents
7h-index
21Co-inventors
66Inventor score
Filing activity: Feb 14, 2000 → Jan 18, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6142242A | Percussion driver drill, and a changeover mechanism for changing over a plurality of operating modes of an apparatus | Performing Operations; Transporting | 123 | Expired |
| USD436917S | Battery pack | General | 71 | Expired |
| USD436511S | Portable electric drill | General | 70 | Expired |
| US9308638B2 | Power tool and auxiliary handle member | Performing Operations; Transporting | 31 | Active |
| US6523658B2 | Clutch mechanism for use in rotary tools having screw-driving and drill modes | Mechanical Engineering; Lighting; Heating | 31 | Expired |
| USD559644S1 | Portable electric circular saw | General | 13 | Expired |
| US9016397B2 | Electric power tool suspending attachment and electric power tool equipped with the same | Performing Operations; Transporting | 8 | Active |
| US8485275B2 | Power tool | Mechanical Engineering; Lighting; Heating | 6 | Active |
| USD505852S1 | Portable screw cutter | General | 5 | Expired |
| USD907979S1 | Electric riveter | General | 1 | Active |
| US11185913B2 | Fastening tool | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US11161168B2 | Fastening tool | Performing Operations; Transporting | 1 | Active |
| US10994325B2 | Fastening tool | Performing Operations; Transporting | 1 | Active |
| US12122032B2 | Electric work machine and electric driver drill | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US11504764B2 | Fastening tool | Performing Operations; Transporting | 0 | Active |
| US10532454B2 | Electric working machine | Electricity | 0 | Active |
| US12350809B2 | Electric work machine | Electricity | 0 | Active |
| US11396038B2 | Fastening tool | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.