Average Co-Inventor Count = 2.25
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. (3 from 42,517 patents)
3 patents:
1. 8661210 - Data migration management device and method
2. 8261031 - Device and method to manage migration volume selection
3. 7447863 - Storage resource management system, method, and computer for dividing volumes based on priority, necessary capacity and volume characteristics