Nahoko Aizawa

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Kawasaki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Toner cartridge
- Patent number D433441
- Issue date Nov 7, 2000
- Ricoh Company, Ltd.
- Masahiro Yonekawa
- D18 - Printing and office machinery
Information Patent Grant
Process cartridge and image-formation device suitable for miniaturi...
- Patent number 5,930,561
- Issue date Jul 27, 1999
- Ricoh Company, Ltd.
- Hiroshi Hosokawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY