Average Co-Inventor Count = 1.67
ph-index = 1
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 (2 from 39,237 patents)
2 patents:
1. 5902056 - Dot-matrix line printer
2. 5702190 - Dot-matrix line printer