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Patent applications and USPTO patent grants for Sakamoto; Hidetoshi.The latest application filed is for "earth discharging device for upward-facing shield machine".
Patent | Date |
---|---|
Cutter structure for shield machine Grant 6,915,864 - Itou , et al. July 12, 2 | 2005-07-12 |
Earth discharging device for upward-facing shield machine Grant 6,698,844 - Itou , et al. March 2, 2 | 2004-03-02 |
Earth discharging device for upward-facing shield machine App 20030118408 - Itou, Hiroyuki ;   et al. | 2003-06-26 |
Cutter structure for shield machine App 20030094311 - Itou, Hiroyuki ;   et al. | 2003-05-22 |
Guide wire for catheter Grant 4,925,445 - Sakamoto , et al. May 15, 1 | 1990-05-15 |
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