Average Co-Inventor Count = 5.29
ph-index = 3
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 42,485 patents)
3 patents:
1. 5237496 - Inventory control method and system
2. 5179643 - Method of multi-dimensional analysis and display for a large volume of
3. 5128861 - Inventory control method and system