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. Hitachi, Ltd. (1 from 42,496 patents)
2. Hitachi Solutions, Ltd. (1 from 77 patents)
2 patents:
1. 12501595 - Electronic apparatus and electro-magnetic interference reduction method
2. 12278672 - Computing apparatus and margin measurement method