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. Nippon Koki Co., Ltd. (2 from 20 patents)
2 patents:
1. 5799977 - Gas generator for seat belt retracting power generating device
2. 5345872 - Igniter