Average Co-Inventor Count = 5.71
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. Graphtec Corporation (1 from 32 patents)
2. Shideido Company Ltd. (1 from 1 patent)
2 patents:
1. 5701816 - Heat-sensitive type mimeographic screen forming apparatus
2. 5015469 - Water-in-oil emulsion type cosmetics