Yasuo Okawara

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Hoya-shi, Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Device for detecting travel condition of inkribbon for printers
- Patent number 4,268,182
- Issue date May 19, 1981
- Citizen Watch Co., Ltd.
- Nagao Mizutani
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Multiple inked ribbon color changeover mechanism for printing machine
- Patent number 4,188,135
- Issue date Feb 12, 1980
- Citizen Watch Co., Ltd.
- Nagao Mizutani
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Print station apparatus
- Patent number 4,143,977
- Issue date Mar 13, 1979
- Tohio Kurihara
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS