Average Co-Inventor Count = 5.00
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. Showa Denko K.k. (1 from 1,960 patents)
2. Japan Atomic Energy Agency (1 from 88 patents)
1 patent:
1. 9640213 - Perpendicular magnetic recording medium and magnetic storage apparatus