Average Co-Inventor Count = 2.00
ph-index = 2
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 patents:
1. D280634 - Electrophotographic copying machine
2. D262375 - Electrophotographic copier