Average Co-Inventor Count = 3.43
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. Mitsubishi Paper Mills Limited (2 from 622 patents)
2. Nippon Hoso' Kyokai (1 from 374 patents)
2 patents:
1. 4387150 - Fixable thermosensitive recording sheet
2. 4330785 - Thermal recording method