Akira Hirakawa

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Hyogo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Sealed battery having an electrode substrate exposed portion extend...
- Patent number 6,908,703
- Issue date Jun 21, 2005
- Sanyo Electric Co., Ltd.
- Masayuki Saito
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Sintered cadmium negative electrode for alkaline storage battery an...
- Patent number 6,534,215
- Issue date Mar 18, 2003
- Sanyo Electric Co., Ltd.
- Yoshitaka Shinyashiki
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Alkaline storage cell having a negative electrode comprising a cadm...
- Patent number 5,281,495
- Issue date Jan 25, 1994
- Sanyo Electric Co., Ltd.
- Akira Hirakawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Enclosed alkaline storage cell
- Patent number 5,208,122
- Issue date May 4, 1993
- Sanyo Electric Co., Ltd.
- Akira Hirakawa
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Sealed battery
- Publication number 20030049523
- Publication date Mar 13, 2003
- Sanyo Electric Co., Ltd.
- Masayuki Saito
- H01 - BASIC ELECTRIC ELEMENTS