Akiyoshi Takada

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Shiga, JP

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Patents Grantslast 30 patents

Information Patent Grant
Closed battery
- Patent number 6,737,187
- Issue date May 18, 2004
- Toyo Kohan Co., Ltd.
- Akiyoshi Takada
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Explosion-proof safety valve assemblage for a secondary battery
- Patent number 6,497,978
- Issue date Dec 24, 2002
- Toyo Kohan Co., Ltd.
- Akiyoshi Takada
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Hermetically sealed cell
- Patent number 6,440,599
- Issue date Aug 27, 2002
- Toyo Kohan Co., Ltd.
- Akiyoshi Takada
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Closed battery and closing member
- Patent number 6,423,440
- Issue date Jul 23, 2002
- Toyo Kohan Co., Ltd.
- Akiyoshi Takada
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Hermetically sealed cell and sealing body
- Patent number 6,303,246
- Issue date Oct 16, 2001
- Toyo Kohan Co., Ltd.
- Akiyoshi Takada
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Safety valve element for battery and battery case cap with safety v...
- Patent number 6,210,825
- Issue date Apr 3, 2001
- Toyo Kohan., Ltd.
- Akiyoshi Takada
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Closed battery
- Publication number 20020081482
- Publication date Jun 27, 2002
- TOYO KOHAN CO.LTD
- Akiyoshi Takada
- H01 - BASIC ELECTRIC ELEMENTS