Wacom Co., Ltd.
1,220Patents
1,065Active
1,220Granted
67Portfolio score
Filing activity: Jun 27, 1984 → Jan 2, 2025 · 106 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8587535B2 | Pointer detection apparatus and pointer detection method | Physics | 218 | Active |
| US5793360A | Digitizer eraser system and method | Physics | 198 | Expired |
| US4878553A | Position detecting apparatus | Physics | 188 | Expired |
| US9158418B2 | Pointer detection apparatus and pointer detection method | Physics | 147 | Active |
| US9081437B2 | Multi-touch and multi-user detecting device | Physics | 143 | Active |
| US5572251A | Optical position detecting unit and optical coordinate input unit | Physics | 142 | Expired |
| US9495037B2 | Combination touch and transducer input system and method | Physics | 139 | Active |
| US5502568A | Optical position detecting unit, optical coordinate input unit and optical position detecting method employing a pattern having a sequence of 1's and 0's | Physics | 126 | Expired |
| US5600105A | Position detecting device and position pointing device therefor | Physics | 120 | Expired |
| US5023408A | Electronic blackboard and accessories such as writing tools | Physics | 118 | Expired |
| US4988837A | Position detecting device | Physics | 118 | Expired |
| US5565632A | Pressure sensitive stylus pen | Physics | 110 | Expired |
| US6005555A | Position detecting apparatus and method for detecting position pointing device | Physics | 107 | Expired |
| US4786765A | Coordinates input system | Physics | 106 | Expired |
| US5633471A | Pressure sensitive element and a stylus pen with pressure sensitive function | Physics | 105 | Expired |
| US5576502A | Pointing unit and improved stylus pen | Physics | 103 | Expired |
| US5028745A | Position detecting apparatus | Physics | 101 | Expired |
| US5672852A | Position pointing device including a memory and a position detecting device coupled by AC fields to the pointing device | Physics | 94 | Expired |
| US7843438B2 | Notebook-sized computer and input system of notebook-sized computer | Physics | 91 | Active |
| US5679930A | Position pointing device including a controller for an AC field emitter in accordance with a binary code | Physics | 89 | Expired |
| US5661269A | Position pointing device having resonant circuit with sequentially changed characteristics and combination thereof with position detecting device | Physics | 83 | Expired |
| US4711977A | Electronic blackboard apparatus | Physics | 82 | Expired |
| US4848496A | Coordinates input apparatus | Physics | 80 | Expired |
| US5870492A | Hand-written character entry apparatus | Physics | 74 | Expired |
| US5206785A | Variable capacitor and position indicator employing variable capacitor | Physics | 74 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.