Average Co-Inventor Count = 2.25
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. Roki Co., Ltd. (3 from 13 patents)
2. Nissan Motor Company Limited (1 from 13,398 patents)
3 patents:
1. 9873066 - Ion-exchanger
2. 9620801 - Ion exchanger and cooler having ion exchanger
3. 9614234 - Ion-exchange equipment