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Patent applications and USPTO patent grants for Hanabuchi; Ryotaro.The latest application filed is for "vacuum switch".
Patent | Date |
---|---|
Vacuum switch Grant 6,951,993 - Kikukawa , et al. October 4, 2 | 2005-10-04 |
Vacuum switch Grant 6,855,903 - Kikukawa , et al. February 15, 2 | 2005-02-15 |
Vacuum switch App 20040222192 - Kikukawa, Shuuichi ;   et al. | 2004-11-11 |
Vacuum switch App 20030230553 - Kikukawa, Shuuichi ;   et al. | 2003-12-18 |
Vacuum switch and vacuum switchgear using the same Grant 6,498,314 - Miyo , et al. December 24, 2 | 2002-12-24 |
Vacuum switch and vacuum switchgear using the same App 20020134756 - Miyo, Takuya ;   et al. | 2002-09-26 |
Vacuum switch and vacuum switchgear using the same App 20010040146 - Miyo, Takuya ;   et al. | 2001-11-15 |
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