Average Co-Inventor Count = 2.67
ph-index = 3
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 (4 from 90,697 patents)
4 patents:
1. 5287422 - Integrated type optical node and optical information system using the
2. 5222163 - Integrated type optical node and optical information system using the
3. 5109444 - Integrated type optical node and optical information system using the
4. 4832428 - Waveguide optical system