Average Co-Inventor Count = 5.54
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 Electric Industries, Limited (2 from 10,250 patents)
2. A.l.m.t. Corporation (2 from 80 patents)
3. Sumitomo Electric Hardmetal Corp. (1 from 551 patents)
2 patents:
1. 11072008 - Wear-resistant tool
2. 11007558 - Diamond die