Tadashi Ito

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Multi-tone recording method for ink jet printer
- Patent number 4,642,653
- Issue date Feb 10, 1987
- Ricoh Company, Ltd.
- Tadashi Ito
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Control system and method for charge control ink jet printer
- Patent number 4,604,631
- Issue date Aug 5, 1986
- Ricoh Company, Ltd.
- Koichiro Jinnai
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS