Koichi Ito

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Kawasaki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Encryption secured against DPA
- Patent number 7,386,130
- Issue date Jun 10, 2008
- Fujitsu Limited
- Koichi Ito
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Extended key preparing apparatus, extended key preparing method, re...
- Patent number 6,956,951
- Issue date Oct 18, 2005
- Fujitsu Limited
- Takeshi Shimoyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Encryption secured against DPA
- Publication number 20030048903
- Publication date Mar 13, 2003
- FUJITSU LIMITED
- Koichi Ito
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Computing apparatus using an SPN structure in an F function and a c...
- Publication number 20020021801
- Publication date Feb 21, 2002
- Takeshi Shimoyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Extended key preparing apparatus, extended key preparing method, re...
- Publication number 20020006196
- Publication date Jan 17, 2002
- Takeshi Shimoyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE