Average Co-Inventor Count = 3.55
ph-index = 3
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. Jx Nippon Oil Energy Corporation (2 from 331 patents)
2. Nippon Oil Corporation (2 from 188 patents)
3. The University of Tokyo (1 from 1,281 patents)
4. Japan Petroleum Energy Center (1 from 4 patents)
4 patents:
1. 8992669 - Hydrogen separation membrane module and hydrogen separation method using same
2. 8911519 - Method and apparatus for hydrogen production and carbon dioxide recovery
3. 8563465 - Hydrogen storage material
4. 8460630 - Method and apparatus for producing hydrogen and recovering carbon dioxide