Average Co-Inventor Count = 3.07
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 4,633 patents)
2. University of Occupational and Enviromental Health, Japan (1 from 6 patents)
3 patents:
1. 9937095 - Exercise training apparatus
2. 6746287 - Underwater propelling apparatus which stably carries out a propelling operation and a steering operation
3. 6089178 - Submersible vehicle having swinging wings