Yoshiaki Arai

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Shizuoka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Closed end type coiled spring with reduced initial deflection
- Patent number 7,213,802
- Issue date May 8, 2007
- Neturen Co., Ltd.
- Eiichi Soga
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
Closed end type coiled spring with reduced initial deflection
- Publication number 20050218572
- Publication date Oct 6, 2005
- Eiichi Soga
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...