Average Co-Inventor Count = 2.82
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. (4 from 5,729 patents)
4 patents:
1. 6715684 - Code reading apparatus
2. 6695212 - Printed material with railway route chart printed thereon, information presenting method, information presentation system, information resource, and ticket issuing method
3. 6043899 - Code pattern image recording apparatus
4. 5905250 - Audio information recording/reproducing system