Mitsuji Sawada

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Facsimile machine using ISDN basic interface
- Patent number 5,278,665
- Issue date Jan 11, 1994
- Ricoh Company, Ltd.
- Mitsuji Sawada
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for controlling a terminal equipment coupled to an integrate...
- Patent number 4,961,185
- Issue date Oct 2, 1990
- Ricoh Company, Ltd.
- Mitsuji Sawada
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for controlling a digital telephone set and a telephone set...
- Patent number 4,939,774
- Issue date Jul 3, 1990
- Ricoh Company, Ltd.
- Mitsuji Sawada
- H04 - ELECTRIC COMMUNICATION TECHNIQUE