Average Co-Inventor Count = 4.00
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 Oil Company (2 from 690 patents)
2. Kawasaki Heavy Industries, Ltd (2 from 18 patents)
2 patents:
1. 5114635 - Process for producing carbon material and carbon/carbon composites
2. 5057254 - Process for producing carbon/carbon composites