Average Co-Inventor Count = 2.48
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. (4 from 42,508 patents)
2. Hitachi Software Engineering Company, Ltd. (1 from 228 patents)
3. Hitachi System Engineering, Ltd. (1 from 6 patents)
4 patents:
1. 7386793 - Apparatus, method and program for supporting a review
2. 6085170 - Delivery managing system
3. 5649180 - Method for generating hierarchical specification information from
4. 5590270 - Method and apparatus for detecting a lower level software reusable