Average Co-Inventor Count = 5.16
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. (8 from 42,508 patents)
8 patents:
1. 12462007 - System and method for preventing fraudulent device access using multi-area biometric and vital sign authentication
2. 12307809 - Photographing apparatus and authentication apparatus
3. 12217469 - Photographing apparatus and authentication apparatus
4. 12067095 - Biometric authentication system, biometric authentication method, and storage medium
5. 11928889 - Photographing apparatus and authentication apparatus
6. 11837029 - Biometric authentication device and biometric authentication method
7. 11645864 - Imaging device, authentication device, and biometric imaging method
8. 11113493 - Biometric authentication system