Average Co-Inventor Count = 5.14
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. Fujitsu Corporation (3 from 39,244 patents)
2. Fujitsu General Limited (1 from 396 patents)
3 patents:
1. 7110574 - Extension device providing security function
2. 7010145 - Extension device providing security function
3. 6873356 - Expansion unit, portable data processing apparatus and imaging device