Kenichiro Morino

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Yokohama-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Hollow coil spring and method for manufacturing same
- Patent number 9,145,941
- Issue date Sep 29, 2015
- NHK Spring Co., Ltd.
- Takashi Yajima
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

Information Patent Application
HOLLOW COIL SPRING AND METHOD FOR MANUFACTURING SAME
- Publication number 20130292890
- Publication date Nov 7, 2013
- NHK Spring Co., Ltd.
- Takashi Yajima
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...