Average Co-Inventor Count = 2.86
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 Tateisi Electronics Co. (2 from 583 patents)
2 patents:
1. 4746885 - Electromagnetic apparatus combined a pair of contactors into one unit
2. 4734669 - Electromagnetic contactor