Average Co-Inventor Count = 4.50
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. Shinagawa Refractories Co., Ltd. (3 from 100 patents)
3 patents:
1. 5928556 - Refractory block for continuous casting
2. 5614121 - Refractory block for continuous casting
3. 4756452 - Molten metal pouring nozzle