Average Co-Inventor Count = 3.75
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. 5410391 - Image-transfer apparatus with movable smoothing roller and
2. 5055375 - Method of image formation using heated rollers