Average Co-Inventor Count = 2.98
ph-index = 4
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Sony Computer Entertainment Inc. (8 from 1,799 patents)
2. Sony Corporation (2 from 58,129 patents)
3. Sony Corporation Entertainment Inc. (1 from 14 patents)
4. Sony Interactive Entertainment Inc. (3,052 patents)
9 patents:
1. 9009080 - Content protection system
2. 8433911 - Management server, management method, management system for downloading of contents, and mobile devices
3. 8146167 - Use management method for peripheral device, electronic system and component device thereof
4. 8090771 - Log collecting/analyzing system with separated functions of collecting log information and analyzing the same
5. 7864957 - Methods and apparatus for secure distribution of program content
6. 7761707 - Recording medium, content player, content player method, and computer program
7. 7558820 - Log collecting/analyzing system with separated functions of collecting log information and analyzing the same
8. 7469345 - Methods and apparatus for secure distribution of program content
9. 7313702 - Method for issuing identification information