Average Co-Inventor Count = 1.11
ph-index = 4
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. Nakamichi Corporation (5 from 142 patents)
5 patents:
1. 5808976 - Disk player with magazine device
2. 5805562 - Disk player with compact disk transporter
3. 5629923 - Disk player with compact disk transporter
4. 5528442 - Disk player with magazine switched drive source
5. 5508994 - Disk player with compact arrangement of a reader and disk storage