Junko Hosaka

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Decorative key sheet for pushbutton switches
- Patent number 7,902,470
- Issue date Mar 8, 2011
- Polymatech Co., Ltd.
- Junko Hosaka
- B44 - DECORATIVE ARTS
Information Patent Grant
Key sheet
- Patent number 7,598,466
- Issue date Oct 6, 2009
- Polymatech Co., Ltd.
- Shinya Tateda
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Pushbutton switch cover sheet and method of manufacturing the same
- Patent number 7,465,889
- Issue date Dec 16, 2008
- Polymatech Co., Ltd.
- Daisuke Nakajima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Key sheet
- Patent number 7,034,235
- Issue date Apr 25, 2006
- Polymatech Co., Ltd.
- Junko Hosaka
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Decorative key sheet for pushbutton switches
- Publication number 20080206521
- Publication date Aug 28, 2008
- Polymatech Co., Ltd.
- Junko Hosaka
- B44 - DECORATIVE ARTS
Information Patent Application
Key sheet
- Publication number 20080017495
- Publication date Jan 24, 2008
- Polymatech Co., Ltd.
- Shinya Tateda
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Pushbutton switch cover sheet and method of manufacturing the same
- Publication number 20060243267
- Publication date Nov 2, 2006
- POLYMATECH CO., LTD.
- Daisuke Nakajima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Key sheet
- Publication number 20050139460
- Publication date Jun 30, 2005
- POLYMATECH CO., LTD.
- Junko Hosaka
- H01 - BASIC ELECTRIC ELEMENTS