SEIKO EPSON CORPORATION
33,613Patents
23,574Active
33,613Granted
60Portfolio score
Filing activity: Dec 19, 1980 → Oct 8, 2024 · 6,743 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7215517B2 | Constant-voltage switching power supply provided with overvoltage output protecting circuit, and electronic apparatus provided with overvoltage protecting circuit | Electricity | 1,183 | Expired |
| US5847566A | Battery capacity calculation method | Physics | 1,029 | Expired |
| US6372608B1 | Separating method, method for transferring thin film device, thin film device, thin film integrated circuit device, and liquid crystal display device manufactured by using the transferring method | Electricity | 902 | Expired |
| US6645830B2 | Exfoliating method, transferring method of thin film device, and thin film device, thin film integrated circuit device and liquid crystal display device produced by the same | Electricity | 693 | Expired |
| US6809724B1 | Display apparatus and portable information processing apparatus | Physics | 684 | Expired |
| US6818530B2 | Exfoliating method, transferring method of thin film device, and thin film device, thin film integrated circuit device, and liquid crystal display device produced by the same | Electricity | 653 | Expired |
| USRE38466E1 | Manufacturing method of active matrix substrate, active matrix substrate and liquid crystal display device | General | 637 | Expired |
| US6017779A | Fabrication method for a thin film semiconductor device, the thin film semiconductor device itself, liquid crystal display, and electronic device | Physics | 583 | Expired |
| US5306946A | Semiconductor device having a passivation layer with silicon nitride layers | Electricity | 541 | Expired |
| US6661438B1 | Display apparatus and portable information processing apparatus | Physics | 527 | Expired |
| US6521511B1 | Thin film device transfer method, thin film device, thin film integrated circuit device, active matrix board, liquid crystal display, and electronic apparatus | Electricity | 388 | Expired |
| US6627518B1 | Method for making three-dimensional device | Electricity | 387 | Expired |
| US6241684A | Exercise workout support device | Human Necessities | 375 | Expired |
| US6127199A | Manufacturing method of active matrix substrate, active matrix substrate and liquid crystal display device | Electricity | 373 | Expired |
| US6522315B2 | Display apparatus | Electricity | 368 | Expired |
| US5171132A | Two-valve thin plate micropump | Performing Operations; Transporting | 365 | Expired |
| US5899972A | Interactive voice recognition method and apparatus using affirmative/negative content discrimination | Physics | 359 | Expired |
| US6142615A | Ink-jet recording head with piezoelectric device and method for manufacturing the same | Performing Operations; Transporting | 357 | Expired |
| US6064764A | Fragile watermarks for detecting tampering in images | Electricity | 339 | Expired |
| US6081742A | Organism state measuring device and relaxation instructing device | Human Necessities | 328 | Expired |
| US6522347B1 | Display apparatus, portable information processing apparatus, information recording medium, and electronic apparatus | Physics | 323 | Expired |
| US6518962B2 | Pixel circuit display apparatus and electronic apparatus equipped with current driving type light-emitting device | Electricity | 316 | Expired |
| US8711487B2 | Virtual image display device and manufacturing method of virtual image display device | Physics | 305 | Active |
| US7193308B2 | Intermediate chip module, semiconductor device, circuit board, and electronic device | Electricity | 305 | Expired |
| US8576491B2 | Virtual image display device | Physics | 304 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.