Average Co-Inventor Count = 7.00
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. Fujitsu Corporation (3 from 39,228 patents)
3 patents:
1. 6493167 - Magnetic tape unit
2. 6147830 - Magnetic tape unit
3. 5739970 - Magnetic tape unit