Average Co-Inventor Count = 4.00
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. Canon Kabushiki Kaisha (1 from 90,673 patents)
2. National Institute of Advanced Industrial Science and Technology (1,714 patents)
3. E-tech Co., Ltd (6 patents)
1 patent:
1. 4935615 - Light intensity control for light beam recorder