Average Co-Inventor Count = 4.00
ph-index = 1
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. Nissan Motor Company Limited (1 from 13,411 patents)
2. Xanavi Informatics Corporation (1 from 146 patents)
1 patent:
1. 7739037 - Map update system, navigation apparatus and providing apparatus