Average Co-Inventor Count = 2.40
ph-index = 3
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. Clarion Co (3 from 1,057 patents)
3 patents:
1. 6744704 - Disk playback apparatus
2. 6574185 - Disk player
3. 6411582 - Disk player