Hiroshi Matsumaru

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Katsuta, JP

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Patents Grantslast 30 patents

Information Patent Grant
Message communication method and system
- Patent number RE32887
- Issue date Mar 14, 1989
- Hitachi, Ltd.
- Kinji Mori
- 340 - Communications: electrical
Information Patent Grant
Message communication method and system
- Patent number 4,510,492
- Issue date Apr 9, 1985
- Hitachi, Ltd.
- Kinji Mori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Loop transmission system with improved bypass routing arrangement
- Patent number 4,380,061
- Issue date Apr 12, 1983
- Hitachi, Ltd.
- Kinji Mori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE