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. Hitachi, Ltd. (3 from 42,496 patents)
3 patents:
1. 10222788 - Plan generating device and plan generating method
2. 10037018 - Production planning apparatus and production planning method
3. 7624043 - Inventory control system and method in recycle-oriented society