Average Co-Inventor Count = 4.20
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. Toshiba Ceramics Co., Ltd. (2 from 189 patents)
2. Sumitomo Metal Industries, Inc. (1 from 929 patents)
2 patents:
1. 5961874 - Flat formed submerged entry nozzle for continuous casting of steel
2. 5683950 - Refractory for casting and method of manufacturing the same