Average Co-Inventor Count = 4.00
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. Nippon Oil Company (1 from 690 patents)
2. Tokyo Institute of Technology (577 patents)
3. Jx Nippon Oil Energy Corporation (331 patents)
1 patent:
1. 5599478 - Compensator for a liquid crystal display