CASIO COMPUTER CO., LTD.
5,287Patents
3,159Active
5,287Granted
58Portfolio score
Filing activity: Feb 21, 1974 → May 28, 2024 · 818 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7385224B2 | Thin film transistor having an etching protection film and manufacturing method thereof | Electricity | 3,910 | Expired |
| US6256688A | Interface apparatus operable by using floppy disk drive | Physics | 1,331 | Expired |
| US4828944A | Thin battery-containing structure | Emerging Cross-Sectional Technologies | 1,008 | Expired |
| US5990629A | Electroluminescent display device and a driving method thereof | Electricity | 689 | Expired |
| US5316008A | Measurement of electrocardiographic wave and sphygmus | Human Necessities | 646 | Expired |
| US5243202A | Thin-film transistor and a liquid crystal matrix display device using thin-film transistors of this type | Electricity | 507 | Expired |
| US4797542A | Multiple application electronic card-like apparatus | Emerging Cross-Sectional Technologies | 362 | Expired |
| US5323042A | Active matrix liquid crystal display having a peripheral driving circuit element | Electricity | 327 | Expired |
| US5825408A | Portable compact imaging and displaying apparatus | Electricity | 305 | Expired |
| US5003356A | Thin film transistor array | Physics | 303 | Expired |
| US4827113A | Technique for authenticating IC card and terminal | Physics | 283 | Expired |
| US6619835B2 | Body wearable information processing terminal device | Electricity | 272 | Expired |
| US6426719B1 | Position measurement apparatus that detects location by receiving external signals | Physics | 257 | Expired |
| US5327001A | Thin film transistor array having single light shield layer over transistors and gate and drain lines | Physics | 243 | Expired |
| US5038251A | Electronic apparatus and a method for manufacturing the same | Emerging Cross-Sectional Technologies | 242 | Expired |
| US5925931A | Semiconductor device having interconnect lines and connection electrodes formed in groove portions of an insulating layer | Electricity | 234 | Expired |
| US7598520B2 | Semiconductor device including active layer of zinc oxide with controlled crystal lattice spacing and manufacturing method thereof | Electricity | 232 | Active |
| US6359837B1 | Camera, camera system, information recording system, timepiece, and link system for camera and timepiece | Electricity | 229 | Expired |
| US5578999A | Remote control with learning function and confirmation thereof | Electricity | 219 | Expired |
| US7993964B2 | Manufacturing method of semiconductor device including active layer of zinc oxide with controlled crystal lattice spacing | Electricity | 214 | Active |
| US6188431A | Electronic still camera and method for communication between electronic still cameras | Electricity | 214 | Expired |
| US6072450A | Display apparatus | Electricity | 211 | Expired |
| US7489032B2 | Semiconductor device including a hard sheet to reduce warping of a base plate and method of fabricating the same | Electricity | 209 | Expired |
| US5943049A | Image processor for displayed message, balloon, and character's face | Physics | 208 | Expired |
| US5914760A | Surface light source device and liquid crystal display device using the same | Physics | 208 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.