Isokazu Furukawa

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Sagamihara, JP

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Patents Grantslast 30 patents

Information Patent Grant
Ink ejection head
- Patent number 4,429,317
- Issue date Jan 31, 1984
- Ricoh Company, Ltd.
- Michio Umezawa
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Ink-jet printer
- Patent number 4,417,255
- Issue date Nov 22, 1983
- Ricoh Company, Ltd.
- Isokazu Furukawa
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS