Average Co-Inventor Count = 7.20
ph-index = 2
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. Other (1 from 832,912 patents)
2. Osaka Prefectural Government (1 from 12 patents)
3. Itoh Seiyu Kabushiki Kaisha (1 from 4 patents)
4. Osaka-Fu (1 from 2 patents)
2 patents:
1. 5919726 - Method for producing photocatalyst material
2. 5069815 - Powder electroluminescent element comprising inorganic