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. Pioneer Corporation (1 from 2,646 patents)
1 patent:
1. 6728181 - Code judging apparatus and method, record medium judging apparatus and method, and information recording apparatus and method