Average Co-Inventor Count = 5.00
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. Nkk Corporation (3 from 614 patents)
2. Ebara Corporation (1 from 2,508 patents)
3. Japan Atomic Energy Research Institute (1 from 321 patents)
3 patents:
1. 5108565 - Method for removing harmful gas from refuse combustion exhaust gas
2. 5092930 - Method for making insoluble heavy metals contained in fly ash discharged
3. 5092931 - Method for making insoluble heavy metals contained in fly ash discharged