Yoshiaki Nakajima

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Ribbon cassette for typewriter
- Patent number D286057
- Issue date Oct 7, 1986
- Silver Seiko Ltd.
- Kenji Tamada
- D18 - Printing and office machinery
Information Patent Grant
Print ribbon cassette including ribbon tensioning means
- Patent number 4,605,327
- Issue date Aug 12, 1986
- Silver Seiko Ltd.
- Junzo Ueki
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS