Yoichi Matsubara

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Nagano, JP

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for inspecting land-attached circuit board
- Patent number 6,278,797
- Issue date Aug 21, 2001
- NGK Spark Plug Co., Ltd.
- Masato Nagasaki
- G01 - MEASURING TESTING
Information Patent Grant
Inspection of solder bumps of bump-attached circuit board
- Patent number 6,028,673
- Issue date Feb 22, 2000
- NGK Spark Plug Co., Ltd.
- Masato Nagasaki
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR