Inventor · disambiguated record
Takuo Ishizuka
Also filed as: ISHIZUKA TAKUO
5 granted patents·112 citations·filing 1982–2006
82Inventor score
Files withHITACHI LTD5
Top patents by PatentIndex Score
5 records- 0176US7457442B2Authentication system by fingerprintHITACHI LTD·Filed 2006·Granted Nov 25, 2008·11 cites·81 claims
- 0269US7162058B2Authentication system by fingerprintHITACHI LTD·Filed 2001·Granted Jan 9, 2007·22 cites·21 claims
- 0369US4675671ALoop network systemHITACHI LTD·Filed 1984·Granted Jun 23, 1987·28 cites·4 claims
- 0466US4841475AData transfer system and method for channels with serial transfer lineHITACHI LTD·Filed 1986·Granted Jun 20, 1989·42 cites·8 claims
- 0540US4527253AData searching apparatusHITACHI LTD·Filed 1982·Granted Jul 2, 1985·9 cites·22 claims
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