Kouzou Yamamoto

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Toyokawa-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Screw tightening structure, screw and screw tightening tool
- Patent number 8,545,156
- Issue date Oct 1, 2013
- OSG System Products Co., Ltd.
- Akihiro Kageyama
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Grant
Screw tightening structure, screw and screw tightening tool
- Patent number 8,511,959
- Issue date Aug 20, 2013
- OSG System Products Co., Ltd.
- Akihiro Kageyama
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS

Patents Applicationslast 30 patents

Information Patent Application
SCREW TIGHTENING STRUCTURE, SCREW AND SCREW TIGHTENING TOOL
- Publication number 20120099944
- Publication date Apr 26, 2012
- OSG SYSTEM PRODUCTS CO., LTD.
- Akihiro Kageyama
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS