Average Co-Inventor Count = 5.46
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 (1 from 39,230 patents)
2. University of Tsukuba (1 from 177 patents)
3. Institute of Science Tokyo (1 from 9 patents)
2 patents:
1. 12384675 - Hydrogen storage and release material and method of producing same
2. 4995111 - Ring trip circuit for subscriber telephone