Masanori Shimizu

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of manufacturing a key top for a push-button switch
- Patent number 6,993,830
- Issue date Feb 7, 2006
- Polymatech Co., Ltd.
- Masanori Shimizu
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Method of manufacturing a key top for a push-button switch
- Publication number 20030102204
- Publication date Jun 5, 2003
- Masanori Shimizu
- H01 - BASIC ELECTRIC ELEMENTS