Average Co-Inventor Count = 2.00
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. Nisshin Steel Co., Ltd. (1 from 342 patents)
2. Hitachi Electronics, Ltd. (1 from 11 patents)
1 patent:
1. 3984189 - Method and apparatus for detecting defects in a surface regardless of