Average Co-Inventor Count = 3.00
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. Kabushiki Kaisha Yaskawa Denki (3 from 1,101 patents)
3 patents:
1. 7279861 - Servo control apparatus
2. 5835371 - Bridge type power converter
3. 5801509 - Method of starting a permanent-magnet synchronous motor equipped with