Tetsuyuki Tsukano
9Patents
7h-index
8Co-inventors
52Inventor score
Filing activity: Mar 29, 1994 → Sep 20, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5428978A | Cylinder lock device resistible against unauthorized unlocking | Emerging Cross-Sectional Technologies | 40 | Expired |
| US6460386B1 | Electronic key structure | Emerging Cross-Sectional Technologies | 35 | Expired |
| US6382003B1 | Lock apparatus | Emerging Cross-Sectional Technologies | 24 | Expired |
| US6442985B1 | Lock apparatus and lock system | Emerging Cross-Sectional Technologies | 22 | Expired |
| US6389856B1 | Lock apparatus | Emerging Cross-Sectional Technologies | 17 | Expired |
| US7810363B2 | Electric steering locking apparatus | Emerging Cross-Sectional Technologies | 8 | Active |
| US7412858B2 | Electric steering lock device | Emerging Cross-Sectional Technologies | 7 | Expired |
| US7975516B2 | Electric steering lock apparatus | Emerging Cross-Sectional Technologies | 1 | Expired |
| US8136376B2 | Electric lock device | Emerging Cross-Sectional Technologies | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.