Average Co-Inventor Count = 4.00
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 Mining Company, Ltd. (2 from 898 patents)
2 patents:
1. 6926963 - Highly weather-resistant magnet powder and magnet produced by using the same
2. 6638367 - Method of producing highly weather-resistant magnet powder, and product produced by the same method