Average Co-Inventor Count = 4.00
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. Mitsubishi Heavy Industries Limited (2 from 4,618 patents)
2 patents:
1. 7420174 - Nondestructive inspection device and crane equipped with nondestructive inspection device
2. 7216548 - Crane equipped with inspection device