Average Co-Inventor Count = 5.00
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. Shizuoka Prefecture (1 from 15 patents)
2. Sanwa Denpun Industrial Co., Ltd. (1 from 1 patent)
1 patent:
1. 4425452 - Coating color for paper and method for preparation of the same