Average Co-Inventor Count = 6.00
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. Okamoto Machine Tool Works, Ltd. (1 from 20 patents)
1 patent:
1. 8460058 - Complex apparatus and method for polishing an ingot block