Average Co-Inventor Count = 6.00
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. Kabushiki Kaisha Yaskawa Denki (1 from 1,102 patents)
2. Nippon Steel Sumitomo Metal Corporation (1 from 1,101 patents)
3. Sumitomo Pipe & Tube Co., Ltd. (1 from 17 patents)
1 patent:
1. 9409269 - Positioning apparatus, working system, and hot working apparatus