Average Co-Inventor Count = 5.33
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. Toyo Ink Manufacturing Company (2 from 223 patents)
2 patents:
1. 5611881 - Method of thermal transfer recording on marking film
2. 5527615 - Image receptor sheet for thermal transfer