OSAKA – Sharp Corp. has completed its acquisition of Toshiba Corp.'s personal computer business, marking a return to the PC business after pulling out eight years ago. Aiming to nurture the PC operation as a new revenue source, Sharp will take over Toshiba's high-profile Dynabook brand and adopt the business reconstruction methods of its Taiwanese parent, Hon Hai Precision Industry Co. Based on an agreement in June, Sharp acquired an 80.1 percent stake in Toshiba Client Solutions Co., a fully owned PC unit of Toshiba, for about ¥4 billion. Yoshihisa Ishida, executive vice president of Sharp, took up the post as chairman of Toshiba Client on Monday, the day the acquisition was completed. Until 2000, Toshiba held the largest share of the laptop market.