Average Co-Inventor Count = 6.00
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. Other (2 from 832,891 patents)
2. Fujikin Inc. (2 from 442 patents)
2 patents:
1. 8020574 - Method for closing fluid passage, and water hammerless valve device and water hammerless closing device used in the method
2. 7080658 - Method for closing fluid passage, and water hammerless valve device and water hammerless closing device used in the method