Average Co-Inventor Count = 5.11
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 90,934 patents)
4 patents:
1. 5007714 - Optical device
2. 4873178 - Optical recording medium and method for conducting recording on said
3. 4779962 - Optical device
4. 4711830 - Image recording material comprising photosensitive layer and recording