Average Co-Inventor Count = 5.00
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. Hitachi, Ltd. (1 from 42,488 patents)
2. Hitachi Plant Technologies, Ltd. (1 from 136 patents)
2 patents:
1. 9266166 - Blade, impeller, turbo fluid machine, method and apparatus for manufacturing blade
2. 8360729 - Blade, impeller, turbo fluid machine, method and apparatus for manufacturing blade