Average Co-Inventor Count = 2.40
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. Olympus Optical Company, Ltd. (2 from 5,729 patents)
2. Nec Corporation (1 from 35,734 patents)
3 patents:
1. D340251 - Microscope
2. D340252 - Microscope
3. D321364 - Computer output printer