Average Co-Inventor Count = 11.00
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. (2 from 42,485 patents)
2 patents:
1. 6213381 - Method of bonding metal plates, apparatus therefor and hot strip mill
2. 5884832 - Method of bonding metal plates, apparatus therefor and hot strip mill