Average Co-Inventor Count = 5.00
ph-index = 6
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 Corporation (8 from 58,131 patents)
8 patents:
1. 9605973 - Electronic guide system, contents server for electronic guide system, portable electronic guide device, and information processing method for electronic guide system
2. 8972186 - Electronic guide system, contents server for electronic guide system, portable electronic guide device, and information processing method for electronic guide system
3. 8467954 - Electronic guide system, contents server for electronic guide system, portable electronic guide device, and information processing method for electronic guide system
4. 8386165 - Electronic guide system, contents server for electronic guide system, portable electronic guide device, and information processing method for electronic guide system
5. 8010279 - Electronic guide system, contents server for electronic guide system, portable electronic guide device, and information processing method for electronic guide system
6. 7979204 - Electronic guide system, contents server for electronic guide system, portable electronic guide device, and information processing method for electronic guide system
7. 7720596 - Electronic guide system, contents server for electronic guide system, portable electronic guide device, and information processing method for electronic guide system
8. 7130742 - Electronic guide system, contents server for electronic guide system, portable electronic guide device, and information processing method for electronic guide system