Average Co-Inventor Count = 4.00
ph-index = 1
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. Mitsui Petrochemical Industries, Ltd. (1 from 1,008 patents)
2. Nippon Hoso' Kyokai (1 from 372 patents)
1 patent:
1. 5053287 - Magnetooptical recording media and processes for production thereof