Rikio Miyagi

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Patents Grantslast 30 patents

Information Patent Grant
Method of manufacturing an electrode plate assembly for lead accumu...
- Patent number 6,190,797
- Issue date Feb 20, 2001
- Matsushita Electric Industrial Co., Ltd.
- Rikio Miyagi
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Device for manufacturing an electrode plate assembly for lead accum...
- Patent number 6,119,762
- Issue date Sep 19, 2000
- Matsushita Electric Industrial Co., Ltd.
- Rikio Miyagi
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Lead acid storage battery and method for making same
- Patent number 5,776,207
- Issue date Jul 7, 1998
- Matsushita Electric Industrial Co., Ltd.
- Kensaku Tsuchida
- B22 - CASTING POWDER METALLURGY