Takafumi Fujiwara

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Suita, JP

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Patents Grantslast 30 patents

Information Patent Grant
Non-aqueous electrolyte secondary cell, and material for negative e...
- Patent number 6,576,366
- Issue date Jun 10, 2003
- Matsushita Electric Industrial Co., Ltd.
- Takafumi Fujiwara
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Method of producing positive active material for non-aqueous electr...
- Patent number 6,242,134
- Issue date Jun 5, 2001
- Matsushita Electric Industrial Co., Ltd.
- Takafumi Fujiwara
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of a lithium composite metal oxide
- Patent number 6,193,946
- Issue date Feb 27, 2001
- Matsushita Electric Industrial Co., Ltd.
- Tomoko Kawano
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Secondary battery
- Patent number 6,120,707
- Issue date Sep 19, 2000
- Matsushita Electric Industrial Co., Ltd.
- Takayuki Shirane
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cylindrical air-cell
- Patent number 5,518,834
- Issue date May 21, 1996
- Matsushita Electric Industrial Co., Ltd.
- Hiroshi Yoshizawa
- H01 - BASIC ELECTRIC ELEMENTS