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. Central Glass Company, Limited (1 from 1,002 patents)
2. Toyama Prefecture (1 from 19 patents)
1 patent:
1. 9085780 - [object Object]