Kenmoku, Suguru; Urano, Yasuteru; Kanda, Koujirou; Kojima, Hirotatsu; Kikuchi, Kazuya; Nagano, Tetuso
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Nagano, Tetsuo; Daiichi Pure Chemicals Co., Ltd.
Patent: US7524974 B2, 2009 ;
Location in patent: Page/Page column 18-19 ;