Average Co-Inventor Count = 2.73
ph-index = 4
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. Nikon Corporation (5 from 8,902 patents)
5 patents:
1. 6804049 - Microscope device and microscope system
2. 6259473 - Section image obtaining apparatus and method of obtaining section image
3. 6178294 - Photographing unit for a microscope
4. 6091911 - Microscope photographing unit with brightness control for observation
5. 5687416 - Photographic apparatus with selectable photometric optical systems