Average Co-Inventor Count = 6.00
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. Nippon Steel Corporation (1 from 3,557 patents)
2. Nippon Steel Chemical Co., Ltd. (1 from 173 patents)
2 patents:
1. 7141229 - Graphite material for negative pole of lithium secondary battery, method of manufacturing the graphite material, and lithium secondary battery
2. 6194067 - Carbonaceous particles and carbonaceous fibers both coated with boron nitride, and lithium secondary cells produced by using the same as negative active material