Masataka Okayama
15Patents
8h-index
32Co-inventors
72Inventor score
Filing activity: Oct 15, 1992 → Apr 23, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6249767A | Portable information terminal surrounding formulation of an optimum plan | Physics | 50 | Expired |
| US6556767B2 | Video capture device | Electricity | 29 | Expired |
| US7590856B2 | System for managing license for protecting content, server for issuing license for protecting content, and terminal for using content protected by license | Physics | 24 | Expired |
| US5899575A | Video capture device, video recording/playing apparatus having the video capture device attached thereto, and video input device | Electricity | 18 | Expired |
| US6842540B1 | Surveillance system | Electricity | 16 | Expired |
| US5367628A | Multi-window system and display method for controlling execution of an application for a window system and an application for a non-window system | Physics | 14 | Expired |
| US6094521A | Information processing system | Electricity | 12 | Expired |
| US7293294B2 | Method and apparatus for using contents | Physics | 10 | Expired |
| US6269215A | Information processing system | Electricity | 7 | Expired |
| US7734913B2 | Content transmission control device, content distribution device and content receiving device | Electricity | 4 | Active |
| US6462783B1 | Picture encoding method and apparatus | Electricity | 4 | Expired |
| USD1029023S1 | Display screen with graphical user interface | General | 3 | Active |
| US7283719B2 | Video capture device | Electricity | 2 | Expired |
| US8005887B2 | Gateway apparatus and system | Electricity | 0 | Active |
| US8706870B2 | Remotely managed device | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.