Average Co-Inventor Count = 2.40
ph-index = 1
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. Keyence Corporation (1 from 512 patents)
2. Zuiko Corporation (1 from 177 patents)
2 patents:
1. 8534558 - Optical information reader
2. 8062459 - Velocity-changing apparatus for web