Average Co-Inventor Count = 8.40
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. (3 from 42,508 patents)
3 patents:
1. 5781731 - Schedule management support system
2. 5684970 - Icon menu display apparatus and icon menu display method
3. 5592605 - Menu picture display method and apparatus for a data processor