Koichi Yamamuro

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Door closer
- Patent number 7,788,768
- Issue date Sep 7, 2010
- NHK SPRING CO., LTD.
- Koichi Yamamuro
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Locking mechanism in tension providing device
- Patent number 4,371,360
- Issue date Feb 1, 1983
- NHK Spring Co., Ltd.
- Juji Ojima
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
DOOR CLOSER
- Publication number 20090320236
- Publication date Dec 31, 2009
- NHK SPRING CO., LTD.
- Koichi Yamamuro
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
DOOR OPENING ASSISTING DEVICE
- Publication number 20090265994
- Publication date Oct 29, 2009
- NHK SPRING CO., LTD.
- Ken Suzuki
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
SLIDE LOCKING DEVICE
- Publication number 20090051171
- Publication date Feb 26, 2009
- NHK SPRING CO., LTD.
- Koichi Yamamuro
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES