Osamu Hirota

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Yokohama-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical transmission device and reception device for Yuen encryptio...
- Patent number 8,867,742
- Issue date Oct 21, 2014
- Tamagawa K-12 & University
- Osamu Hirota
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL TRANSMISSION DEVICE AND RECEPTION DEVICE FOR YUEN ENCRYPTIO...
- Publication number 20120328100
- Publication date Dec 27, 2012
- TAMAGAWA K-12 & UNIVERSITY
- Osamu Hirota
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
System and method for distributing key
- Publication number 20020048370
- Publication date Apr 25, 2002
- Matsushita Electric Industrial Co., Ltd.
- Osamu Hirota
- H04 - ELECTRIC COMMUNICATION TECHNIQUE