Average Co-Inventor Count = 4.88
ph-index = 2
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. Pioneer Corporation (3 from 2,646 patents)
2. Other (1 from 832,680 patents)
4 patents:
1. 11874134 - Map information-providing system, map information-providing method, and map information-providing program
2. 11867522 - Map information-providing system, map information-providing method, and map information-providing program
3. 7054744 - Route provision apparatus, route provision method, navigation system, and computer program for route provision apparatus or navigation system
4. 6826474 - Communication navigation system and method, communication center apparatus, communication navigation terminal, program storage device and computer data signal embodied in carrier wave