Average Co-Inventor Count = 5.69
ph-index = 4
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 (4 from 39,228 patents)
4 patents:
1. 6965869 - Service point management system for use in sales promotion services
2. 5937391 - Point-service system in online shopping mall
3. 5805800 - Apparatus and method for controlling storage medium using security
4. 5761308 - System for refunding payment for software