Average Co-Inventor Count = 6.46
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. Sumitomo Metal Industries, Inc. (2 from 929 patents)
2. Toshiba Ceramics Co., Ltd. (2 from 189 patents)
2 patents:
1. 5992711 - Integrated submerged entry nozzle and its manufacture
2. 5961874 - Flat formed submerged entry nozzle for continuous casting of steel