Kohei Yoshino |
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| Date | Document Name & Details | Documents |
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| 14 August 2012 grant date | Bearing Device for Wheel United States Patent US 8,240,922 B2 Isao Hirai, Kohei Yoshino, Takayasu Takubo, Akira Fujimura, and Takuya Obata for NTN Corporation |  PDF - 5.1MB - 88 pages |