Average Co-Inventor Count = 2.57
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. Ricoh Company, Ltd. (3 from 28,544 patents)
3 patents:
1. 11513007 - Notification control device, notification control system, and notification control method
2. 10553099 - Information providing apparatus and information providing system
3. 9730030 - Apparatus and system for processing emergency event information and providing evacuation guidance