Average Co-Inventor Count = 6.46
ph-index = 1
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. Kawasaki Steel Corporation (2 from 1,256 patents)
2. Hitachi, Ltd. (1 from 42,517 patents)
2 patents:
1. 5510196 - Corrosion resistant steel sheets improved in corrosion resistance and
2. 4673024 - Continuous casting apparatus for the production of cast sheets