Average Co-Inventor Count = 2.40
ph-index = 1
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. Shimadzu Corporation (2 from 3,532 patents)
2 patents:
1. 5172610 - Stepless-speed-changer engine brake controller
2. 5058022 - Device for detecting engine brake