Toshiaki Senda
13Patents
11h-index
15Co-inventors
69Inventor score
Filing activity: Jul 23, 1987 → Feb 3, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4878553A | Position detecting apparatus | Physics | 188 | Expired |
| US4988837A | Position detecting device | Physics | 118 | Expired |
| US5023408A | Electronic blackboard and accessories such as writing tools | Physics | 118 | Expired |
| US4786765A | Coordinates input system | Physics | 106 | Expired |
| US5028745A | Position detecting apparatus | Physics | 101 | Expired |
| US4902858A | Coordinates input apparatus | Physics | 69 | Expired |
| US5134388A | Electronic blackboard system marker and eraser therefor | Physics | 64 | Expired |
| US5134689A | Coordinate input system and input implement used in the system | Physics | 49 | Expired |
| US4948926A | Position detecting apparatus | Physics | 35 | Expired |
| USRE34187E | Coordinates input system | General | 33 | Expired |
| USRE33805E | Coordinates input apparatus | General | 14 | Expired |
| USRE35329E | Electronic blackboard and accessories such as writing tools | General | 11 | Expired |
| US10102267B2 | Method and apparatus for access control | Physics | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.