Average Co-Inventor Count = 2.86
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. Asaca Corporation (2 from 9 patents)
2 patents:
1. 7480807 - Data storage system
2. 6304525 - Disc inverting mechanism and disc automatic changer with the mechanism