Average Co-Inventor Count = 4.00
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. Ckd Corporation (2 from 317 patents)
2. Yodogawa Hu-tech Co., Ltd. (2 from 5 patents)
2 patents:
1. 11320078 - Checking tool for tube coupler
2. 11161229 - Clamping jig for tube connection