Average Co-Inventor Count = 4.44
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. Omron Corporation (1 from 4,119 patents)
2. Omron Tateisi Electronics Co. (1 from 583 patents)
2 patents:
1. 6750439 - Light curtain generating device including single-beam optical modules
2. 4990768 - Electronic apparatus including photoelectric switch