Average Co-Inventor Count = 6.37
ph-index = 4
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. Mitsubishi Electric Corporation (5 from 15,906 patents)
5 patents:
1. D1056868 - Servo amplifier
2. D987594 - Servo amplifier
3. D927447 - Servo amplifier
4. D918857 - Servo amplifier
5. D905638 - Servo amplifier