Average Co-Inventor Count = 5.00
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. Sumitomo Heavy Industries, Ltd. (1 from 1,177 patents)
2. Sumitomo Metal Industries, Inc. (1 from 929 patents)
1 patent:
1. 4619310 - Supporting and guiding apparatus continuous rounds casting