Average Co-Inventor Count = 6.86
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 (3 from 10,239 patents)
2. The Tokyo Electric Power Company, Incorporated (3 from 177 patents)
3. Other (1 from 832,680 patents)
4 patents:
1. 7093619 - Vacuum-insulated pipe
2. 7002116 - Baking method
3. 6888060 - Terminal structure of extreme-low temperature equipment
4. 6718618 - Method of manufacturing superconducting cable