Average Co-Inventor Count = 3.43
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. Ishikawa Prefecture (2 from 10 patents)
2 patents:
1. 5511395 - Carbon fiber fabric spreading apparatus having a freely rotatable
2. 4986316 - Package feed for a prescribed weft length of carbon fiber