Amatsuji Steel Ball Mfg. Co., Ltd.

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Osaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
High-precision sphere size measuring device and sphere polishing de...
- Patent number 9,962,808
- Issue date May 8, 2018
- Amatsuji Steel Ball Mfg. Co., Ltd.
- Hiroshi Nishide
- B24 - GRINDING POLISHING
Information Patent Grant
Visual inspection system for ceramic balls
- Patent number 7,889,333
- Issue date Feb 15, 2011
- Amatsuji Steel Ball Mfg. Co., Ltd.
- Masaki Nagashio
- G01 - MEASURING TESTING
Information Patent Grant
Inspection apparatus for surfaces of spheres
- Patent number 6,501,544
- Issue date Dec 31, 2002
- Amatsuji Steel Ball Mfg. Co., Ltd.
- Mitsuhiro Matsuoka
- G01 - MEASURING TESTING

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Patents Applicationslast 30 patents

Information Patent Application
HIGH-PRECISION SPHERE SIZE MEASURING DEVICE AND SPHERE POLISHING DE...
- Publication number 20180029191
- Publication date Feb 1, 2018
- AMATSUJI STEEL BALL MFG. CO., LTD.
- Hiroshi NISHIDE
- B24 - GRINDING POLISHING