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Patent applications and USPTO patent grants for Tohji; Yutaka.The latest application filed is for "construction machine".
Patent | Date |
---|---|
Construction machine Grant 6,430,922 - Tohji August 13, 2 | 2002-08-13 |
Hydraulic control device of a working machine Grant 6,378,303 - Higuchi , et al. April 30, 2 | 2002-04-30 |
Construction machine App 20010054286 - Tohji, Yutaka | 2001-12-27 |
Construction machine Grant 6,148,548 - Tohji November 21, 2 | 2000-11-21 |
Control apparatus for hydraulic excavator Grant 6,050,090 - Tohji April 18, 2 | 2000-04-18 |
Hydraulic control circuit in a hydraulic excavator Grant 5,996,341 - Tohji December 7, 1 | 1999-12-07 |
Construction machine Grant 5,950,430 - Tohji , et al. September 14, 1 | 1999-09-14 |
Hydraulic control system Grant 5,743,089 - Tohji April 28, 1 | 1998-04-28 |
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