Kabushiki Kaisha Sega Enterprises
414Patents
4Active
414Granted
44Portfolio score
Filing activity: Nov 19, 1974 → Aug 24, 2006 · 4 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5645486A | Gaming system that pays out a progressive bonus using a lottery | Human Necessities | 557 | Expired |
| USD412940S | Video game machine | General | 316 | Expired |
| US6529875B1 | Voice recognizer, voice recognizing method and game machine using them | Physics | 261 | Expired |
| US6616535B1 | IC card system for a game machine | Physics | 228 | Expired |
| US6932708B2 | Communication game system and communication game processing method | Human Necessities | 208 | Expired |
| US5485176A | Information display system for electronically reading a book | Emerging Cross-Sectional Technologies | 200 | Expired |
| US6343987B1 | Image processing device, image processing method and recording medium | Human Necessities | 198 | Expired |
| US5221083A | Medal game machine | Human Necessities | 190 | Expired |
| US5371792A | CD-ROM disk and security check method for the same | Physics | 183 | Expired |
| US5879235A | Ball game machine with a roulette-type rotary disk and a display located in the central area therein | Human Necessities | 177 | Expired |
| USD376391S | Simulation game machine | General | 175 | Expired |
| US6024675A | Data-using game system | Emerging Cross-Sectional Technologies | 170 | Expired |
| US5651735A | Keno machine with two separate plays | Physics | 166 | Expired |
| US6672962B1 | Gun-shaped controller and game device | Human Necessities | 166 | Expired |
| US5844530A | Head mounted display, and head mounted video display system | Physics | 155 | Expired |
| US5734807A | Image processing devices and methods | Human Necessities | 154 | Expired |
| US5967898A | Tablet unit | Human Necessities | 149 | Expired |
| US6755743B1 | Communication game system and processing method thereof | Human Necessities | 147 | Expired |
| US6752719B2 | Controller and expansion unit for controller | Human Necessities | 144 | Expired |
| US5161803A | Television game apparatus | Human Necessities | 141 | Expired |
| US6540614B1 | Game device including a subset for displaying image information | Human Necessities | 129 | Expired |
| US6012980A | Coordinates detecting device, method for same and game device | Human Necessities | 125 | Expired |
| US5749577A | Perpheral input device with six-axis capability | Physics | 125 | Expired |
| US6377277B1 | Virtual image generation apparatus and method | Human Necessities | 125 | Expired |
| US5739814A | Information storage system and book device for providing information in response to the user specification | Physics | 123 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.