Average Co-Inventor Count = 4.80
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. Nippon Sanso Corporation (2 from 182 patents)
2 patents:
1. 5985489 - Carbon for a lithium secondary battery, lithium secondary battery, and
2. 5658692 - Carbon negative electrode materials and lithium secondary cells