Average Co-Inventor Count = 4.50
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. Tokyo Electron Limited (3 from 10,366 patents)
2. Tokyo Electron Tohoku Limited (1 from 29 patents)
3 patents:
1. 5665166 - Plasma processing apparatus
2. 5591269 - Vacuum processing apparatus
3. 5478429 - Plasma process apparatus