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. Hitachi, Ltd. (2 from 42,517 patents)
2 patents:
1. 7241038 - Light distribution control device
2. 6539188 - Liquid developing device, method of it's maintenance and the method of recovery of supplemental fluid from the liquid developing device