Average Co-Inventor Count = 4.11
ph-index = 10
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. (55 from 42,475 patents)
2. Hitachi Industry & Control Solutions, Ltd. (1 from 49 patents)
3. Hitachi Industry & Control Colutions, Ltd. (1 from 1 patent)
57 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
9. 10460187 - Biometric authentication device and system
10. 10264998 - Blood vessel imaging apparatus and personal authentication system
11. 9342730 - Finger identification apparatus
12. 9292727 - Blood vessel image taking device
13. 9171233 - Biometric information processing device and biometric information processing program
14. 9141843 - Personal authentication device
15. 9076027 - Authentication system using biometric information and authentication device