Average Co-Inventor Count = 6.35
ph-index = 4
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. (5 from 42,488 patents)
5 patents:
1. D361060 - Computer
2. D342512 - Combined camera and monitor television receiver
3. D342067 - Wireless telephone
4. D339802 - Wireless telephone
5. D333302 - Facsimile transceiver