Average Co-Inventor Count = 4.00
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. Chugai Ro Co., Ltd. (2 from 74 patents)
2 patents:
1. 4836864 - Method of gas carburizing and hardening
2. 4807853 - Continuous furnace for gas carburizing and hardening