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 Electric Industries, Limited (2 from 10,273 patents)
2. Sumitomo Electric Hardmetal Corp. (1 from 553 patents)
2 patents:
1. 7404399 - Diamond tool, synthetic single crystal diamond and method of synthesizing single crystal diamond, and diamond jewelry
2. 5569921 - Infrared optical part and measuring instrument