Average Co-Inventor Count = 5.00
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. Nsk Corporation (1 from 2,430 patents)
2. Sumitomo Metal Industries, Inc. (1 from 929 patents)
3. Nsk Steering Systems Co., Ltd. (1 from 41 patents)
4. Sumitomo Pipe & Tube Co., Ltd. (1 from 17 patents)
1 patent:
1. 8459077 - Manufacturing method for metal member with through hole