Average Co-Inventor Count = 4.44
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. Mitsubishi Electric Corporation (1 from 15,942 patents)
2. Mitsubishi Paper Mills Limited (1 from 622 patents)
2 patents:
1. 10598397 - Ventilation fan
2. 6312857 - Photomask material and method of processing thereof