Average Co-Inventor Count = 2.25
ph-index = 3
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. (3 from 42,488 patents)
3 patents:
1. 6635950 - Semiconductor device having buried boron and carbon regions, and method of manufacture thereof
2. 6198157 - Semiconductor device having buried boron and carbon regions
3. 5936726 - Inspection method, inspection apparatus and method of production of