Average Co-Inventor Count = 3.75
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 Industrial Products, Ltd. (3 from 28 patents)
2. Hitachi Transport System, Ltd. (2 from 13 patents)
5 patents:
1. 11440733 - Picking assistance system and assistance method
2. 11164274 - Article conveyance system and article conveyance method
3. 11155412 - Warehouse management system and warehouse management method
4. 11148883 - Article carrier system, order management device, and control method for article carrier system
5. 10793353 - Article transportation system, transportation device, and article transportation method