Average Co-Inventor Count = 2.00
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. Nec Corporation (2 from 35,689 patents)
2 patents:
1. 12499724 - Entry control apparatus, entry control system, entry control method, and non-transitory computer-readable medium
2. 12260696 - History management apparatus, history management system, history management method, and non-transitory computer-readable medium