Average Co-Inventor Count = 7.00
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. Asahi Glass Company, Limited (1 from 2,560 patents)
2. Japan Tobacco Inc. (1 from 1,040 patents)
1 patent:
1. 5307821 - Tobacco raw material and method for its production