Average Co-Inventor Count = 6.86
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. Idemitsu Kosan Company, Limited (2 from 2,271 patents)
2. Nippon Chemiphar Co., Ltd. (1 from 132 patents)
2 patents:
1. 4074864 - Method for producing polycarbonate powder from a polycarbonate solution
2. 4001223 - Adamantane-piperazine derivatives