Average Co-Inventor Count = 7.00
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. Nippon Steel Corporation (1 from 3,542 patents)
2. Kawasaki Jukogyo Kabushiki Kaisha (1 from 3,322 patents)
3. International Superconductivity Technology Center (1 from 128 patents)
4. Railway Technical Research Institute (1 from 65 patents)
5. Shikoku Electric Power Co., Inc. (1 from 17 patents)
1 patent:
1. 5341059 - Superconducting bearing unit and operating method thereof