Kabushikikaisha Wacom
18Patents
0Active
18Granted
33Portfolio score
Filing activity: Jul 18, 1989 → Jan 23, 2002
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6100538A | Optical digitizer and display means for providing display of indicated position | Physics | 205 | Expired |
| USD466501S1 | Coordinate input device with display unit | General | 138 | Expired |
| US5561543A | Information input system by attitude detection of manual implement | Electricity | 116 | Expired |
| US6441362B1 | Stylus for optical digitizer | Physics | 96 | Expired |
| US5644126A | Manual implement for inputting incremental information by attitude control | Physics | 49 | Expired |
| US5130500A | Digitizer having flat tablet with magnetic shield plate | Physics | 33 | Expired |
| US4956526A | Digitizer having flat tablet with magnetic shield plate | Physics | 30 | Expired |
| US5694203A | Distance camera device having light gate for extracting distance information | Physics | 21 | Expired |
| US5608528A | Optical position detecting method using asynchronous modulation of light source | Physics | 16 | Expired |
| US5640241A | Light spot position measuring method of detecting one-dimensional position by two-dimensional sensor | Physics | 15 | Expired |
| USD462686S1 | Computer input device | General | 10 | Expired |
| US5325398A | Pulse count mode communication system | Physics | 9 | Expired |
| US5548392A | Optical position detector having scale pattern spot-illuminated to increase resolution | Physics | 7 | Expired |
| US5371835A | Inductively coupled neural network | Physics | 7 | Expired |
| USD466114S1 | Coordinate input device | General | 6 | Expired |
| US5642164A | Light spot position measuring apparatus having orthogonal cylindrical lenses | Physics | 4 | Expired |
| US5444190A | Sensing unit for a position detecting apparatus and its manufacturing method | Physics | 4 | Expired |
| USRE39475E1 | Digitizer having flat tablet with magnetic shield plate | General | 3 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.