Akira Ohta

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Hirakata, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for production of positive electrode active material
- Patent number 5,393,622
- Issue date Feb 28, 1995
- Matsushita Electric Industrial Co., Ltd.
- Yoshiaki Nitta
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Manufacturing of zinc-alkaline batteries
- Patent number 5,384,214
- Issue date Jan 24, 1995
- Matsushita Electric Industrial Co., Ltd.
- Sachiko Sugihara
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Air cell electrode and process for preparing its catalyst
- Patent number 4,595,643
- Issue date Jun 17, 1986
- Matsushita Electrical Industrial Co., Ltd.
- Nobuharu Koshiba
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Dry cells with stainless steel current collector
- Patent number 4,125,638
- Issue date Nov 14, 1978
- Matsushita Electric Industrial Co., Ltd.
- Jun Watanabe
- H01 - BASIC ELECTRIC ELEMENTS