YOICHI ROBERT OKAMOTO. American-born Japanese and a photographer for the Syracuse Post-Standard since 1939 enlisted yesterday in the U S Army, took the oath of allegiance and departed for training at Fort Niagara Hundreds of sports followers here have observed Okamoto on duty with his flash camera at Syracuse university sports events in recent seasons The last timewe met him was a year ago at the intercollegiate boxing bouts in Archbold gym at S U The two powerhouses of the couth-west circuit. Rice and Texas, meet in the first week of the league sea son on Wednesday night at Houston