Average Co-Inventor Count = 3.00
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. Tohoku University (1 from 984 patents)
2. Nittetsu Mining Co., Ltd. (1 from 43 patents)
1 patent:
1. 7985397 - Method of treating hydrogen sulfide, method of producing hydrogen, and photocatalytic-reaction apparatus