Tsutomu Naganuma

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Patents Grantslast 30 patents

Information Patent Grant
Lithographic printing plate
- Patent number 4,592,977
- Issue date Jun 3, 1986
- Toppan Printing Co., Ltd.
- Tsutomu Naganuma
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Dry planographic printing apparatus
- Patent number 4,268,158
- Issue date May 19, 1981
- Toppan Printing Co., Ltd.
- Tsutomu Naganuma
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Dry planographic printing method and plate made by electrophotograp...
- Patent number 4,175,958
- Issue date Nov 27, 1979
- Toppan Printing Co., Ltd.
- Tsutomu Naganuma
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY