Akihiro Okubo

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Takasaki-Shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Metal gasket material plate and method for manufacturing the same
- Patent number 10,151,393
- Issue date Dec 11, 2018
- NIPPON LEAKLESS INDUSTRY CO., LTD.
- Satoshi Ota
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Resin-coated sand
- Patent number 7,267,876
- Issue date Sep 11, 2007
- Gun Ei Chemical Industry Co., Ltd.
- Akihiro Okubo
- B22 - CASTING POWDER METALLURGY

Patents Applicationslast 30 patents

Information Patent Application
METAL GASKET MATERIAL PLATE AND METHOD FOR MANUFACTURING THE SAME
- Publication number 20160265661
- Publication date Sep 15, 2016
- NIPPON LEAKLESS INDUSTRY CO., LTD
- Satoshi OTA
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Application
Resin-coated sand
- Publication number 20060284346
- Publication date Dec 21, 2006
- Gun Ei Chemical Industry Co., Ltd.
- Akihiro Okubo
- B22 - CASTING POWDER METALLURGY
Information Patent Application
Resin-coated sand
- Publication number 20040197558
- Publication date Oct 7, 2004
- Gun Ei Chemical Industry Co., Ltd.
- Akihiro Okubo
- B22 - CASTING POWDER METALLURGY