Average Co-Inventor Count = 2.57
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 39,244 patents)
2. Fujitsu Frontech Limited (2 from 266 patents)
3 patents:
1. 7212121 - Wireless tag system, wireless tag access control device, wireless tag access control method, wireless tag access control program and wireless tag
2. 7145458 - Non-contact IC tag system
3. 6474545 - Digital cash safe