Average Co-Inventor Count = 2.40
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. Nidec Copal Corporation (1 from 256 patents)
2. Nidec Copel Corporation (1 from 1 patent)
2 patents:
1. 6774512 - Claw-pole permanent-magnet stepping motor
2. D454859 - Motor with lead screw