Mitsuhiro Oyama

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Yoshikawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Pipe joint
- Patent number 6,979,028
- Issue date Dec 27, 2005
- Tozen Corporation
- Akira Muroi
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Pipe joint
- Patent number 6,880,861
- Issue date Apr 19, 2005
- Tozen Corporation
- Akira Muroi
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
Pipe joint
- Publication number 20050006895
- Publication date Jan 13, 2005
- Akira Muroi
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Pipe joint
- Publication number 20040245775
- Publication date Dec 9, 2004
- Akira Muroi
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...