Hisao Sakazaki

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Yokohama, JP

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Patents Applicationslast 30 patents

Information Patent Application
DIGITAL SIGNATURE MANAGEMENT METHOD AND DIGITAL SIGNATURE MANAGEMEN...
- Publication number 20210328808
- Publication date Oct 21, 2021
- Hitachi, Ltd
- Hisao SAKAZAKI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD OF GENERATING ID WITH GUARANTEED VALIDITY, AND VALIDITY LEGI...
- Publication number 20120099725
- Publication date Apr 26, 2012
- Hitachi, Ltd
- Hisao Sakazaki
- G06 - COMPUTING CALCULATING COUNTING