Average Co-Inventor Count = 2.87
ph-index = 2
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. (2 from 42,508 patents)
2. Hitachi-high-technologies Corporation (2 from 2,874 patents)
4 patents:
1. 8726801 - Controlling device for servo press and servo press equipped with the controlling device
2. 7421357 - Inspection data analysis program, inspection tools, review apparatus and yield analysis apparatus
3. 6928375 - Inspection condition setting program, inspection device and inspection system
4. 6753494 - Sintered body and electrode, method for surface densitication of these, process for manufacturing electrode by this method and circuit breaker