Japanese industrial plant engineering company Chiyoda Corporation has reported a 135.6% rise in net profit to ´5,095 million for the first half of the current fiscal year ending March 31, 2005. (US$1=´105). Net profit per common share climbed to ´27.44 from year-ago levels.   Consolidated operating profit rose 90.4% to ´4,752 million on a net…