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Patent applications and USPTO patent grants for Izumikawa; Toshihiko.The latest application filed is for "coin-shaped battery".
Patent | Date |
---|---|
Coin-shaped battery Grant 6,761,995 - Uyama , et al. July 13, 2 | 2004-07-13 |
Coin-shaped battery App 20030186118 - Uyama, Takao ;   et al. | 2003-10-02 |
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