Average Co-Inventor Count = 1.60
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. Tokyo Electron Limited (1 from 10,317 patents)
2 patents:
1. 11459657 - Gas supply unit and gas supply method
2. 7874316 - Purge gas unit and purge gas supply integrated unit