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. Nippon Steel Corporation (2 from 3,568 patents)
2 patents:
1. 5634988 - High tensile steel having excellent fatigue strength at its weld and
2. 5454883 - High toughness low yield ratio, high fatigue strength steel plate and