Osamu Hirota

Follow

Person

Yokohama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Encryption method, cryptogram decoding method, encryptor, cryptogra...
- Patent number 7,822,204
- Issue date Oct 26, 2010
- Fujitsu Limited
- Setsuo Yoshida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Encryption method, cryptogram decoding method, encryptor, cryptogra...
- Patent number 7,471,790
- Issue date Dec 30, 2008
- Fujitsu Limited
- Setsuo Yoshida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System and method for distributing key
- Patent number 7,245,722
- Issue date Jul 17, 2007
- Osamu Hirota
- Osamu Hirota
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Quantum state control apparatus, optical receiver and optical commu...
- Patent number 5,113,524
- Issue date May 12, 1992
- Hitachi, Ltd.
- Osamu Hirota
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Encryption method, cryptogram decoding method, encryptor, cryptogra...
- Publication number 20080044011
- Publication date Feb 21, 2008
- FUJITSU LIMITED
- Setsuo Yoshida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Encryption method, cryptogram decoding method, encryptor, cryptogra...
- Publication number 20070183593
- Publication date Aug 9, 2007
- Fujitsu Limited and Osamu HIROTA
- Setsuo Yoshida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE