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Patent applications and USPTO patent grants for Tohrisawa; Kenichi.The latest application filed is for "hydro dynamic bearing device".
Patent | Date |
---|---|
Hydro dynamic bearing device Grant 10,323,688 - Tanaka , et al. | 2019-06-18 |
Hydro Dynamic Bearing Device App 20160131185 - TANAKA; Takayasu ;   et al. | 2016-05-12 |
Hydro dynamic bearing device Grant 9,255,604 - Tanaka , et al. February 9, 2 | 2016-02-09 |
Hydro Dynamic Bearing Device App 20150016760 - TANAKA; Takayasu ;   et al. | 2015-01-15 |
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