Akira Oyama

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Tamano, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for producing zinc or zinc alloy powder for battery
- Patent number 6,746,509
- Issue date Jun 8, 2004
- Mitsui Mining and Smelting Company, Ltd.
- Akira Oyama
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Discharge mechanism of sheet material in image forming apparatus
- Patent number 6,488,279
- Issue date Dec 3, 2002
- Matsushita Electric Industrial Co., Ltd.
- Izumi Fukuda
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Zinc alloy powder and alkaline battery using the same
- Patent number 6,428,932
- Issue date Aug 6, 2002
- Mitsui Mining & Smelting Company, Ltd.
- Mitsuo Shinoda
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Magnetite particles
- Patent number 5,356,712
- Issue date Oct 18, 1994
- Mitsui Mining & Smelting Co., Ltd.
- Masachika Hashiuchi
- C01 - INORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Process for producing zinc or zinc alloy powder for battery
- Publication number 20040170897
- Publication date Sep 2, 2004
- MITSUI MINING & SMELTING COMPANY, LTD.
- Akira Oyama
- B22 - CASTING POWDER METALLURGY
Information Patent Application
PROCESS FOR PRODUCING ZINC OR ZINC ALLOY POWDER FOR BATTERY
- Publication number 20040045404
- Publication date Mar 11, 2004
- Akira Oyama
- B22 - CASTING POWDER METALLURGY
Information Patent Application
Zinc alloy powder for alkaline manganese dioxide cell, and negative...
- Publication number 20030180607
- Publication date Sep 25, 2003
- Masamoto Sasaki
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...