Average Co-Inventor Count = 1.18
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. Riso Kagaku Corporation (4 from 1,074 patents)
2. Lion Corporation (1 from 271 patents)
5 patents:
1. 8969604 - Surfactant composition for agricultural chemicals
2. 6793210 - Folding/stitching apparatus
3. 6398209 - Sheet supply apparatus
4. 6135023 - Stencil printing machine having mechanism for adjusting gap between
5. 5638750 - Printing apparatus