Masaru Matsubara

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Nagoya, JP

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Patents Grantslast 30 patents

Information Patent Grant
Silicon nitride sintered body, method for manufacturing the same, a...
- Patent number 6,313,054
- Issue date Nov 6, 2001
- NGK Spark Plug Co., Ltd.
- Masaru Matsubara
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Cermet tool
- Patent number 6,277,486
- Issue date Aug 21, 2001
- NGK Spark Plug Co., Ltd.
- Masaru Matsubara
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Cermet tool and process for producing the same
- Patent number 6,235,382
- Issue date May 22, 2001
- NGK Spark Plug Co., Ltd.
- Masaru Matsubara
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method for manufacturing silicon nitride sintered body
- Patent number 6,162,386
- Issue date Dec 19, 2000
- NGK Spark Plug Co., Ltd.
- Masaru Matsubara
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Titanium carbo-nitride complex silicon nitride tool
- Patent number 6,010,777
- Issue date Jan 4, 2000
- NGK Spark Plug Co., Ltd.
- Shinya Ogimoto
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES