Seizi Maruo

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Hitachi, JP

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Patents Grantslast 30 patents

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Multimedia telemeeting terminal device, terminal device system and...
- Patent number 5,432,525
- Issue date Jul 11, 1995
- Hitachi, Ltd.
- Seizi Maruo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Variable scanning speed optical scanning device
- Patent number 5,253,085
- Issue date Oct 12, 1993
- Hitachi, Ltd.
- Seizi Maruo
- G02 - OPTICS
Information Patent Grant
Communication conference apparatus and method for remote conferencing
- Patent number 5,012,509
- Issue date Apr 30, 1991
- Hitachi, Ltd.
- Koozoo Nakamura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE