Average Co-Inventor Count = 2.67
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. Ihi Corporation (2 from 1,144 patents)
2 patents:
1. 9664338 - Method for constructing low-temperature tank and low-temperature tank
2. 9556607 - Method for constructing cylindrical tank