Average Co-Inventor Count = 3.43
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. Seiko Precision Inc. (2 from 254 patents)
2 patents:
1. 7871210 - Imaging device with alignment means for aligning shutter unit and imaging unit
2. 6642505 - Reflection-type optical sensor